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EP1979595B1 - Electromechanical device for controlling a variable compression ratio engine - Google Patents

Electromechanical device for controlling a variable compression ratio engine Download PDF

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Publication number
EP1979595B1
EP1979595B1 EP07730865A EP07730865A EP1979595B1 EP 1979595 B1 EP1979595 B1 EP 1979595B1 EP 07730865 A EP07730865 A EP 07730865A EP 07730865 A EP07730865 A EP 07730865A EP 1979595 B1 EP1979595 B1 EP 1979595B1
Authority
EP
European Patent Office
Prior art keywords
compression ratio
control
variable compression
engine
control rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP07730865A
Other languages
German (de)
French (fr)
Other versions
EP1979595A2 (en
Inventor
Vianney Rabhi
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Individual
Original Assignee
Individual
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Filing date
Publication date
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Publication of EP1979595A2 publication Critical patent/EP1979595A2/en
Application granted granted Critical
Publication of EP1979595B1 publication Critical patent/EP1979595B1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D15/00—Varying compression ratio
    • F02D15/02—Varying compression ratio by alteration or displacement of piston stroke
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00 with rotary main shaft other than crankshaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B9/00—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00
    • F01B9/04—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00 with rotary main shaft other than crankshaft
    • F01B9/047—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts, not specific to groups F01B1/00 - F01B7/00 with rotary main shaft other than crankshaft with rack and pinion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/022—Chain drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/18—Rocking arms or levers
    • F01L1/181—Centre pivot rocking arms
    • F01L1/182—Centre pivot rocking arms the rocking arm being pivoted about an individual fulcrum, i.e. not about a common shaft
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
    • F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
    • F01L9/22—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by rotary motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/048—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable crank stroke length
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D29/00—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto
    • F02D29/06—Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/024—Belt drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/026—Gear drive
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/20—Adjusting or compensating clearance
    • F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
    • F01L1/24—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically
    • F01L1/2405—Adjusting or compensating clearance automatically, e.g. mechanically by fluid means, e.g. hydraulically by means of a hydraulic adjusting device located between the cylinder head and rocker arm
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
    • F02B75/045—Engines with variable distances between pistons at top dead-centre positions and cylinder heads by means of a variable connecting rod length

Definitions

  • the present invention relates to an electromechanical device for controlling the compression ratio of a variable volumetric ratio engine.
  • the mechanical transmission device for a variable volumetric ratio engine comprises at least one cylinder in which a piston moves which is secured, in its lower part, with a transmission member cooperating on the one hand by means of a rack with a small dimension with a rolling guide device, and secondly by means of another large rack with a toothed wheel secured to a connecting rod, this making it possible to transmit the movement between said piston and said connecting rod.
  • the mechanical transmission device for variable volumetric ratio engine also comprises at least one control rack cooperating with the gear wheel, means for fixing the piston on the transmission member which provide a clamping preload, connecting means which allow to stiffen the teeth of the racks, and means for strengthening and lightening the structure of the toothed wheel.
  • the holding in vertical position of said control rack and its displacement to another vertical position are provided by a control cylinder.
  • the cylinder comprises a lower chamber and an upper chamber whose cylinder capacity is maintained identical to that of said lower chamber through a cylinder axis extension also called upper cylinder rod.
  • the control cylinder also includes a cylinder piston, valves held in place by springs and a control rod.
  • the upper end of said cylinder is closed by a cylinder head.
  • the vertical position of the control rod can be modified by low power electrical means which can print to said control rod a vertical translational movement to open or close the valves of the control cylinder so it automatically moves to the same vertical position as the control rod.
  • variable volumetric ratio engine It is to enable the realization of transmission means between low power electrical means and the control rod (s) of a variable volumetric ratio engine that the invention comprises a variable volumetric ratio engine according to the claim 1.
  • variable volumetric ratio engine comprises a camshaft which is positioned above a cylinder head of the cylinder (s) for controlling said engine.
  • variable compression ratio engine comprises a camshaft which is positioned below the engine control cylinder (s), within the engine block of said engine.
  • variable compression ratio engine comprises a camshaft having a sensor for informing the engine management system on the angular position of said camshaft.
  • variable compression ratio engine comprises a camshaft having a return spring in rotation.
  • variable volumetric ratio motor comprises a camshaft which is connected to the electric motor by intermediate transmission means.
  • variable volumetric ratio motor comprises a camshaft which is positioned in the longitudinal axis of the control rod (s) of the control ram (s) and perpendicular to said axis, and acts on the vertical position of said at least one control rod (s) via at least one pusher.
  • variable volumetric ratio motor comprises a pusher which comprises a setting device which makes it possible to fix the initial vertical position of at least one control rod with respect to the initial vertical position of the other rod or rods. (s) engine control.
  • variable volumetric ratio motor comprises an adjustment device that comprises the pusher which consists of a thread which can be stopped in rotation.
  • variable volumetric ratio engine comprises camshaft whose position is offset relative to that of the control rod (s) or the control jack (s), said camshaft to adjust the vertical position of the at least one engine control rod (s) via at least one rocker arm.
  • variable compression ratio engine comprises a rocker arm having a hinge close to its center allowing it to pivot relative to the engine, one end of said rocker cooperating with at least one cam of the camshaft for adjusting the angular position of said rocker, while the other end of said rocker cooperates with at least one control rod to adjust the vertical position of said control rod.
  • variable compression ratio engine comprises a hinge which comprises the rocker arm close to its center and which enables said rocker arm to pivot relative to the engine, which comprises an adjusting device which makes it possible to fix the initial vertical position of at least one control rod relative to the initial vertical position of the other or the other engine control rod (s).
  • variable volumetric ratio engine comprises a control device that includes the joint arranged near the center of the rocker arm which consists of a thread which can be stopped in rotation.
  • variable volumetric ratio engine comprises a rocker arm having a hinge at its end allowing it to pivot relative to the engine on the one hand, and a surface formed near its center cooperating with at least one cam camshaft for adjusting the angular position of said rocker arm on the other hand, the other end of said rocker cooperating with at least one control rod for adjusting the vertical position of said control rod.
  • variable volumetric ratio motor comprises a hinge which comprises the rocker arm at its end and which enables said rocker arm to pivot relative to the engine, comprising an adjustment device which makes it possible to fix the initial vertical position of at least one control rod relative to the initial vertical position of the other engine control rod (s).
  • variable volumetric ratio motor comprises an adjustment device, which comprises the hinge arranged at the end of the rocker arm which consists of a thread which can be stopped in rotation.
  • variable volumetric ratio motor comprises mechanical means for transmitting motion between at least one electric motor and at least one control rod which consist of at least one geared wheel shaft comprising at least one co-operating gear wheel. with a rack of very small dimension mounted at the end of at least one control rod of the engine.
  • variable volumetric ratio motor comprises intermediate transmission means which allow to connect the geared wheel shaft to the electric motor.
  • variable volumetric ratio motor comprises a rack of very small size which comprises an adjustment device which makes it possible to fix the initial vertical position of at least one control rod with respect to the initial vertical position of the other or other engine control rod (s).
  • variable volumetric ratio motor comprises an adjusting device, which comprises the rack of very small size which consists of a thread which can be stopped in rotation.
  • variable volumetric ratio motor comprises an electric motor 802 which comprises a sensor for informing the engine management system on the angular position of said electric motor.
  • variable volumetric ratio motor according to the present invention comprises as many electric motors as control rods, said control rods each having their own electric motor to adjust their vertical position.
  • variable volumetric ratio motor comprises a control rod which has two small diameter shoulders which make it possible to lift two small diameter valves located respectively in upper and lower chambers of the control cylinder, said control rod comprising also two other large diameter shoulders that can lift two other large diameter valves are also respectively in the upper and lower chambers of the control cylinder, said shoulders being positioned so that the small diameter valves are always open by the rod control before large diameter valves.
  • variable volumetric ratio motor comprises small diameter valves having in their center a bore traversed by the control rod, and a spherical contact zone that cooperates with a conical contact zone arranged in the valves of wholesale diameter.
  • variable volumetric ratio motor comprises small diameter valves which are kept in contact with the large diameter valves housed in the same chamber by means of springs coming to bear on said small diameter valves on the one hand, and on the wall of the chamber of the control jack in which they are housed on the other hand, said springs also making it possible to keep the large diameter valves in contact with a piston of the jack of the control cylinder.
  • variable volumetric ratio motor comprises small diameter valves which are held in contact with large diameter valves housed in the same chamber by means of at least one spring attached to a jack piston of the control cylinder. and coming to bear on said small diameter valves, said spring also to maintain the large diameter valves in contact with the cylinder piston of the control cylinder.
  • variable volumetric ratio motor comprises large diameter valves which have a smooth annular surface which can be kept in contact with a smooth face provided respectively on the upper and lower faces of a cylinder piston of the control cylinder so that to seal with said piston.
  • variable volumetric ratio motor comprises large diameter valves which include centering means which keep them always centered on the control rod along their longitudinal axis.
  • variable volumetric ratio motor comprises at least one control rod of a control cylinder which comprises at least one sensor for informing the engine management system on the vertical position of said control rod.
  • variable volumetric ratio engine comprises at least one control rack having at least one sensor for informing the engine management system on the vertical position of said rack.
  • an electromechanical device 800 for controlling the compression ratio of a variable volumetric ratio engine comprising for each cylinder a transmission device 1 and a piston 2.
  • the mechanical transmission device 1 comprises in the lower part of the piston 2 a transmission member. transmission 3 secured to said piston and cooperating, on the one hand with a rolling guide device 4, and on the other hand with a toothed wheel 5.
  • the gear 5 cooperates with a connecting rod 6 connected to a crankshaft 9 to achieve the transmission of the movement between the piston 2 and said crankshaft 9.
  • the gear 5 cooperates opposite the transmission member 3 with another rack called control rack 7 whose vertical position relative to the engine block is driven by a control device 12.
  • the control device 12 of the variable volumetric ratio engine comprises a control cylinder 8 which consists of a upper rod a cylinder 10, a lower cylinder rod 16, a cylinder piston 13 and a control rod 20.
  • the electromechanical device 800 comprises mechanical means for transmitting the movement 801 between at least one electric motor 802 and at least one control rod 20 of a control device 12 for adjusting the vertical position of the control rack 7 of said motor. variable volumetric ratio.
  • the electric motor 802 may be, for example, a stepper motor, a servomotor or a linear motor.
  • the electromechanical device 800 comprises an electric motor 802 which includes a sensor for informing the engine management system on the angular position of said electric motor.
  • the electromechanical device 800 comprises as many electric motors 802 as control rods 20, said control rods each having their own electric motor to adjust their vertical position.
  • the electromechanical device 800 comprises mechanical transmission means 801 which consist of at least one camshaft 803 which comprises at least one cam 804.
  • the camshaft 803 may be, for example, mounted on bearings or bearings, not shown.
  • cam 803 of camshaft 803 may be any or, for example, spiral to provide a constant relationship between the angular displacement of camshaft 803 and the linear displacement of the member. who is in contact with the cam.
  • the electromechanical device 800 may comprise a camshaft 803 which is positioned above the cylinder head of the control cylinder (s) 8 of the control device 12 of the engine.
  • the electromechanical device 800 may comprise a camshaft 803 which is positioned below the control jack (s) 8 of the control device 12 of the engine and inside the engine block of said engine.
  • the electromechanical device 800 comprises a camshaft 803 which includes a sensor for informing the engine management system on the angular position of said camshaft.
  • the electromechanical device 800 comprises a camshaft 803 which comprises a spring 805 of return rotation.
  • the spring 805 may be, for example, a torsion spring consisting of a wire wound in a cylindrical shape or a spiral spring consisting of a spirally wound steel sheet.
  • the electromechanical device 800 comprises a camshaft 803 which is connected to the electric motor 802 by intermediate transmission means 806.
  • the intermediate transmission means 806 may consist, for example, of a toothed wheel 807 which cooperates with a worm 808.
  • the intermediate transmission means 806 may consist, for example, of a gear system comprising at least two toothed wheels, or gears connected together by a chain or toothed pulleys interconnected by a belt. notched.
  • the electromechanical device 800 comprising a camshaft 803 whose position is offset relative to that of the control rod or rods 20 of the control cylinder (s) 8.
  • the camshaft 803 makes it possible to adjust the vertical position of the at least one control rod (s) 20 of the motor by means of at least one rocker 810 and 813.
  • the rocker 810 and 813 can be made for example in foundry, forged steel or stamped sheet.
  • Each rocker 810 has a hinge 811 provided near its center allowing it to pivot relative to the engine.
  • One of the ends of the rocker arm 810 cooperates with at least one cam 804 of the camshaft 803 to adjust the angular position of said rocker arm, while the other end of said rocker arm cooperates with at least one control rod 20 to adjust the vertical position of said control rod.
  • hinge 811 provided near the center of the rocker 810 may be, for example, a ball joint or a pivot connection.
  • the hinge 811 which each rocker arm 810 comprises near its center, comprises an adjusting device 812 which makes it possible to fix the initial vertical position of at least one control rod 20 of a control cylinder 8 relative to in the initial vertical position of the other or other control rod (s) 20 of the other or the other control cylinder (s) 8 of the engine.
  • the adjusting device 812 which comprises the hinge 811 arranged near the center of each rocker 810, consists of a thread which can be stopped in rotation, for example, by a counter nut, by gluing, by keying or by a "Nylstop" type brake.
  • the electromechanical device 800 comprising a camshaft 803 which is positioned in the longitudinal axis of the control rod (s) 20 of the control jack (s) 8 and perpendicular to said axis, and acts on the vertical position of said control rod (s) 20 via at least one pusher 809.
  • the pusher 809 comprises an adjustment device which makes it possible to fix the initial vertical position of at least one control rod 20 with respect to the initial vertical position of the other one or more control rods 20 of each cylinder. motor control 8.
  • the adjustment device which comprises the pusher 809, consists of a thread that can be stopped in rotation, for example, by a lock nut, by gluing, by keying or by a "Nylstop" type brake.
  • the electromechanical device 800 comprising a rocker 813 which comprises at one of its ends a hinge 814 allowing it to pivot relative to the engine on the one hand, and a surface 815 formed near its center and cooperating with at least one cam 804 of the camshaft 803 for adjusting the angular position of said rocker 813 on the other hand.
  • the other end of said rocker 813 is provided to cooperate with at least one control rod 20 of the control cylinders 8 to adjust the vertical position of said control rod.
  • hinge 814 that includes the rocker 813 at its end may be, for example, a ball joint or a pivot connection.
  • the hinge 814 which includes the rocker 813 at its end and which allows said rocker arm to pivot relative to the engine, comprises an adjusting device 816 for fixing the initial vertical position of at least one control rod 20 relative to the initial vertical position of the other one or more control rods 20 of the engine.
  • the adjusting device 816 which comprises the hinge 814 arranged at the end of the rocker 813, consists of a thread which can be stopped in rotation, for example, by a lock nut, by gluing, by keying or by a "Nylstop" type brake.
  • electromechanical device 800 comprising mechanical means for transmitting the movement 801 between at least one electric motor 802 and at least one control rod 20.
  • the mechanical transmission means of the movement 801 consist of at least one geared wheel 817 which comprises at least one toothed wheel 818 cooperating with a very small rack 819 mounted at the end of at least one control rod 20 of the engine.
  • the geared wheel 817 may be, for example, mounted on bearings or not shown bearings.
  • the geared wheel 817 may be, for example, mounted on bearings or not shown bearings.
  • the electromechanical device 800 comprises a geared wheel shaft 817 which is connected to the electric motor 802 by intermediate transmission means 806.
  • the intermediate transmission means 806 may consist, for example, of a toothed wheel 807 which cooperates with an endless screw 808 or of a gear system comprising at least two toothed wheels, of wheels toothed interconnected by a chain or toothed pulleys interconnected by a toothed belt.
  • the rack of very small size 819 comprises an adjusting device for fixing the initial vertical position of at least one control rod 20 relative to the initial vertical position of the other or the other control rod (s) 20 of the engine.
  • the adjustment device which comprises the rack of very small size 819, consists of a thread which can be stopped in rotation, for example, by a lock nut, by gluing, by keying or by a type of brake "Nylstop ".
  • the electromechanical device 800 comprises either at least one pusher 809, at least one rocker 810, 813, or at least a very small rack 819, the adjustment of the initial vertical position of the control rods 20 of the engine relative to each other is performed during the assembly of the engine.
  • the adjustment of the initial vertical position of the control rods 20 during the assembly of the engine is carried out either by measuring the altitude of the pistons 2 of the engine at the top dead center by means of a comparator or any other measuring instrument installed. in the spark plug well, either by measuring the volume of the combustion chambers of said engine when the pistons 2 of said engine are at top dead center.
  • the device for adjusting the initial vertical position of the control rods 20 of the engine relative to each other may consist of an electric motor.
  • each electric motor can be, for example, a linear piezoelectric motor.
  • the adjustment of the initial vertical position of the engine control rods relative to each other can be effected by the engine running, or by measuring the effective pressure in the combustion chambers of the engine by means of appropriate sensors. or by deducing the effective pressure in the combustion chambers of the engine from the pressure measured in the upper chamber of the engine control cylinders by means of at least one pressure sensor.
  • control device 12 of the variable volumetric ratio engine comprising a control cylinder 8 which consists of an upper cylinder rod 10, a lower cylinder rod 16, a piston cylinder 13 and a rod control 20.
  • the jack piston 13 comprises a peripheral swivel ring 180 which matches the spherical shape of said jack piston.
  • the upper cylinder rod 10 has in its inner part and in its center a non-return valve 185 of leak compensation whose input is in communication with a chamber 184 formed in the cylinder head 300 of the control cylinder 8.
  • the control rod 20 of the control jack 8 of the electromechanical device 800 has two shoulders 23 of small diameter for lifting two small diameter valves 21 located respectively in the upper chambers 121 and lower 122 of the control jack 8.
  • the control rod 20 also comprises two shoulders 24 of large diameter which make it possible to lift two large diameter valves 25 which are also respectively in the upper chambers 121 and lower 122 of the control jack 8.
  • the shoulders 23 of small diameter and the shoulders 24 of large diameter are positioned so that small diameter valves 21 are always open by the control rod 20 before the valves 25 of large diameter.
  • the small diameter valves 21 comprise in their center a bore through which the control rod 20 passes, and a spherical contact zone 26 which cooperates with a conical contact zone 27 arranged in the large diameter valves 25.
  • the bore formed in the center of the valves 21 of small diameter and which is traversed by the control rod 20 may comprise a groove containing a seal 28 can be toric elastic material, or in two parts one annular directly in contact with the control rod 20 and which has particular characteristics of wear resistance, and the other ring which has particular characteristics of elasticity and sealing and which always remains in contact with the bottom of said throat.
  • the small diameter valves 21 can be made in two parts which are assembled by shrinking, gluing or crimping after mounting the seal.
  • the small diameter valves 21 are held in contact with the large diameter valves 25 housed in the same chamber by means of springs 22 bearing on said small diameter valves 21 and on the wall of the chamber 121. , 122 of the control cylinder 8 in which they are housed on the other hand, said springs 22 also making it possible to keep the large diameter valves 25 in contact with the piston of the jack 13 of the control jack 8.
  • the springs 22 may be, for example, of helical type and be mounted coaxially with the control rod 20.
  • the small diameter valves 21 are held in contact with the large diameter valves 25 housed in the same chamber 121, 122 by means of at least one spring attached to the piston cylinder 13 and coming to bear on said small diameter valves, said spring also making it possible to keep the large diameter valves 25 in contact with the jack piston 13 of the control jack 8.
  • the spring fixed on the jack piston 13 may consist of a sheet of steel of suitable shape or may be a torsion spring consisting of a winding of steel wire.
  • the large diameter valves 25 have a smooth annular surface 29 which can be kept in contact with a smooth face respectively provided on the upper and lower faces of the piston of the cylinder 13 of the control jack 8 in order to seal with said piston.
  • the large diameter valves 25 have centering means which keep them always centered on the control rod 20 along their longitudinal axis.
  • the centering means which ensure the centering of large diameter valves on the control rod 20 leave sufficient radial mobility to said large diameter valves 25 so that the seal between said valves and the piston of the cylinder 13 of the control cylinder 8 is always achieved regardless of the orientation of said piston relative to the engine.
  • the electromechanical device 800 comprises at least one control rod 20 which comprises at least one sensor for informing the engine management system on the vertical position of said rod.
  • the electromechanical device 800 comprises at least one control rack 7 which comprises at least one sensor for informing the engine management system on the vertical position of said rack.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
  • Valve Device For Special Equipments (AREA)
  • Transmission Devices (AREA)

Description

La présente invention est relative à un dispositif électromécanique permettant de piloter le taux de compression d'un moteur à rapport volumétrique variable.The present invention relates to an electromechanical device for controlling the compression ratio of a variable volumetric ratio engine.

On connaît, d'après les brevets internationaux WO98/51911 , WO00/31377 , WO03/008783 appartenant au demandeur, différents dispositifs mécaniques pour moteur à rapport volumétrique variable.We know, according to international patents WO98 / 51911 , WO00 / 31377 , WO03 / 008783 belonging to the applicant, different mechanical devices for variable volumetric ratio engines.

On remarque que le brevet international WO98/51911 au nom du demandeur décrit un dispositif servant à améliorer le rendement global des moteurs à combustion interne à pistons utilisés à charge et régime variables par adaptation en marche de leur cylindrée effective et/ou de leur rapport volumétrique.We notice that the international patent WO98 / 51911 on behalf of the applicant describes a device for improving the overall efficiency of piston internal combustion engines used at variable load and speed by adaptation in operation of their effective displacement and / or their volumetric ratio.

On constate que selon les brevets internationaux WO00/31377 et WO03/008783 au nom du demandeur le dispositif de transmission mécanique pour moteur à rapport volumétrique variable comprend au moins un cylindre dans lequel se déplace un piston qui est solidaire, dans sa partie inférieure, d'un organe de transmission coopérant d'une part au moyen d'une crémaillère de faible dimension avec un dispositif de guidage à roulement, et d'autre part au moyen d'une autre crémaillère de forte dimension avec une roue dentée solidaire d'une bielle, ceci permettant de réaliser la transmission du mouvement entre ledit piston et ladite bielle.We see that according to international patents WO00 / 31377 and WO03 / 008783 on behalf of the applicant, the mechanical transmission device for a variable volumetric ratio engine comprises at least one cylinder in which a piston moves which is secured, in its lower part, with a transmission member cooperating on the one hand by means of a rack with a small dimension with a rolling guide device, and secondly by means of another large rack with a toothed wheel secured to a connecting rod, this making it possible to transmit the movement between said piston and said connecting rod.

Le dispositif de transmission mécanique pour moteur à rapport volumétrique variable comprend également au moins une crémaillère de commande coopérant avec la roue dentée, des moyens de fixation du piston sur l'organe de transmission qui offrent une précontrainte de serrage, des moyens de liaison qui permettent de rigidifier les dents des crémaillères, et des moyens de renforcement et d"allègement de la structure de la roue dentée.The mechanical transmission device for variable volumetric ratio engine also comprises at least one control rack cooperating with the gear wheel, means for fixing the piston on the transmission member which provide a clamping preload, connecting means which allow to stiffen the teeth of the racks, and means for strengthening and lightening the structure of the toothed wheel.

On observe que la position verticale de la crémaillère de commande du moteur détermine le rapport volumétrique dudit moteur.It is observed that the vertical position of the engine control rack determines the volumetric ratio of said engine.

Le maintien en position verticale de ladite crémaillère de commande et son déplacement vers une autre position verticale sont assurés par un vérin de commande.The holding in vertical position of said control rack and its displacement to another vertical position are provided by a control cylinder.

Le vérin comporte une chambre inférieure et une chambre supérieure dont la cylindrée est maintenue identique à celle de ladite chambre inférieure grâce à un prolongateur d'axe de vérin également appelé tige supérieure de vérin.The cylinder comprises a lower chamber and an upper chamber whose cylinder capacity is maintained identical to that of said lower chamber through a cylinder axis extension also called upper cylinder rod.

Le vérin de commande comprend également un piston de vérin, des valves maintenues en place par des ressorts et une tige de contrôle. L'extrémité supérieure dudit vérin est fermée par une culasse.The control cylinder also includes a cylinder piston, valves held in place by springs and a control rod. The upper end of said cylinder is closed by a cylinder head.

On note que selon le brevet international WO 98/51911 au nom du demandeur, la position verticale de la tige de contrôle peut être modifiée par des moyens électriques de faible puissance qui peuvent imprimer à ladite tige de contrôle un mouvement de translation verticale permettant d'ouvrir ou de fermer les valves du vérin de commande afin qu'il se place automatiquement à la même position verticale que celle de la tige de contrôle.It is noted that according to the international patent WO 98/51911 in the name of the applicant, the vertical position of the control rod can be modified by low power electrical means which can print to said control rod a vertical translational movement to open or close the valves of the control cylinder so it automatically moves to the same vertical position as the control rod.

On note que les différents brevets au nom du demandeur ne décrivent aucune solution permettant de transmettre un travail généré par des moyens électriques de faible puissance à la ou les tiges(s) de contrôle du moteur à rapport volumétrique variable pour en régler la position verticale.It is noted that the various patents in the name of the applicant do not describe any solution for transmitting a work generated by low power electrical means to the control rod (s) of the engine to variable volumetric ratio to adjust the vertical position.

C'est pour permettre la réalisation des moyens de transmission compris entre des moyens électriques de faible puissance et la ou les tiges(s) de contrôle d'un moteur à rapport volumétrique variable que l'invention comporte un moteur à rapport volumétrique variable selon la revendication 1.It is to enable the realization of transmission means between low power electrical means and the control rod (s) of a variable volumetric ratio engine that the invention comprises a variable volumetric ratio engine according to the claim 1.

Avantageusement :Advantageously:

Le moteur à rapport volumétrique variable suivant la présente invention comprend un arbre à cames qui est positionné au-dessus d'une culasse du ou des vérin(s) de commande dudit moteur.The variable volumetric ratio engine according to the present invention comprises a camshaft which is positioned above a cylinder head of the cylinder (s) for controlling said engine.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un arbre à cames qui est positionné au-dessous du ou des vérin(s) de commande du moteur, à l'intérieur du bloc moteur dudit moteur.The variable compression ratio engine according to the present invention comprises a camshaft which is positioned below the engine control cylinder (s), within the engine block of said engine.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un arbre à cames comportant un capteur permettant de renseigner le système de gestion du moteur sur la position angulaire dudit arbre à cames.The variable compression ratio engine according to the present invention comprises a camshaft having a sensor for informing the engine management system on the angular position of said camshaft.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un arbre à cames comportant un ressort de rappel en rotation.The variable compression ratio engine according to the present invention comprises a camshaft having a return spring in rotation.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un arbre à cames qui est relié au moteur électrique par des moyens de transmission intermédiaires.The variable volumetric ratio motor according to the present invention comprises a camshaft which is connected to the electric motor by intermediate transmission means.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un arbre à cames qui est positionné dans l'axe longitudinal de la ou des tige(s) de contrôle du ou des vérin(s) de commande et perpendiculairement au dit axe, et agit sur la position verticale de ladite ou desdites tige(s) de contrôle par l'intermédiaire d'au moins un poussoir.The variable volumetric ratio motor according to the present invention comprises a camshaft which is positioned in the longitudinal axis of the control rod (s) of the control ram (s) and perpendicular to said axis, and acts on the vertical position of said at least one control rod (s) via at least one pusher.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un poussoir qui comporte un dispositif de réglage qui permet de fixer la position verticale initiale d'au moins une tige de contrôle par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle du moteur.The variable volumetric ratio motor according to the present invention comprises a pusher which comprises a setting device which makes it possible to fix the initial vertical position of at least one control rod with respect to the initial vertical position of the other rod or rods. (s) engine control.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un dispositif de réglage que comporte le poussoir qui est constitué d'un filetage qui peut être arrêté en rotation.The variable volumetric ratio motor according to the present invention comprises an adjustment device that comprises the pusher which consists of a thread which can be stopped in rotation.

Le moteur à rapport volumétrique variable suivant la présente invention comprend arbre à cames dont la position est déportée par rapport à celle de la ou des tige(s) de contrôle du ou des vérin(s) de commande, ledit arbre à cames permettant de régler la position verticale de ladite ou desdites tige(s) de contrôle du moteur par l'intermédiaire d'au moins un culbuteur.The variable volumetric ratio engine according to the present invention comprises camshaft whose position is offset relative to that of the control rod (s) or the control jack (s), said camshaft to adjust the vertical position of the at least one engine control rod (s) via at least one rocker arm.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un culbuteur comportant une articulation à proximité de son centre lui permettant de pivoter par rapport au moteur, l'une des extrémités dudit culbuteur coopérant avec au moins une came de l'arbre à cames pour régler la position angulaire dudit culbuteur, tandis que l'autre extrémité dudit culbuteur coopère avec au moins une tige de contrôle pour régler la position verticale de ladite tige de contrôle.The variable compression ratio engine according to the present invention comprises a rocker arm having a hinge close to its center allowing it to pivot relative to the engine, one end of said rocker cooperating with at least one cam of the camshaft for adjusting the angular position of said rocker, while the other end of said rocker cooperates with at least one control rod to adjust the vertical position of said control rod.

Le moteur à rapport volumétrique variable suivant la présente invention comprend une articulation que comprend le culbuteur à proximité de son centre et qui permet audit culbuteur de pivoter par rapport au moteur, qui comporte un dispositif de réglage qui permet de fixer la position verticale initiale d'au moins une tige de contrôle par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle du moteur.The variable compression ratio engine according to the present invention comprises a hinge which comprises the rocker arm close to its center and which enables said rocker arm to pivot relative to the engine, which comprises an adjusting device which makes it possible to fix the initial vertical position of at least one control rod relative to the initial vertical position of the other or the other engine control rod (s).

Le moteur à rapport volumétrique variable suivant la présente invention comprend un dispositif de réglage que comporte l'articulation aménagée à proximité du centre du culbuteur qui est constitué d'un filetage qui peut être arrêté en rotation.The variable volumetric ratio engine according to the present invention comprises a control device that includes the joint arranged near the center of the rocker arm which consists of a thread which can be stopped in rotation.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des un culbuteur comportant une articulation en son extrémité lui permettant de pivoter par rapport au moteur d'une part, et une surface ménagée à proximité de son centre coopérant avec au moins une came de l'arbre à cames pour régler la position angulaire dudit culbuteur d'autre part, l'autre extrémité dudit culbuteur coopérant avec au moins une tige de contrôle pour régler la position verticale de ladite tige de contrôle.The variable volumetric ratio engine according to the present invention comprises a rocker arm having a hinge at its end allowing it to pivot relative to the engine on the one hand, and a surface formed near its center cooperating with at least one cam camshaft for adjusting the angular position of said rocker arm on the other hand, the other end of said rocker cooperating with at least one control rod for adjusting the vertical position of said control rod.

Le moteur à rapport volumétrique variable suivant la présente invention comprend une articulation que comprend le culbuteur en son extrémité et qui permet audit culbuteur de pivoter par rapport au moteur, comportant un dispositif de réglage qui permet de fixer la position verticale initiale d'au moins une tige de contrôle par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle du moteur.The variable volumetric ratio motor according to the present invention comprises a hinge which comprises the rocker arm at its end and which enables said rocker arm to pivot relative to the engine, comprising an adjustment device which makes it possible to fix the initial vertical position of at least one control rod relative to the initial vertical position of the other engine control rod (s).

Le moteur à rapport volumétrique variable suivant la présente invention comprend un dispositif de réglage, que comporte l'articulation aménagée à l'extrémité du culbuteur qui est constitué d'un filetage qui peut être arrêté en rotation.The variable volumetric ratio motor according to the present invention comprises an adjustment device, which comprises the hinge arranged at the end of the rocker arm which consists of a thread which can be stopped in rotation.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des moyens mécaniques de transmission du mouvement entre au moins un moteur électrique et au moins une tige de contrôle qui sont constitués d'au moins un arbre à roues dentées comportant au moins une roue dentée coopérant avec une crémaillère de très petite dimension montée à l'extrémité d'au moins une tige de contrôle du moteur.The variable volumetric ratio motor according to the present invention comprises mechanical means for transmitting motion between at least one electric motor and at least one control rod which consist of at least one geared wheel shaft comprising at least one co-operating gear wheel. with a rack of very small dimension mounted at the end of at least one control rod of the engine.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des moyens de transmission intermédiaires qui permettent de relier l'arbre à roues dentées au moteur électrique.The variable volumetric ratio motor according to the present invention comprises intermediate transmission means which allow to connect the geared wheel shaft to the electric motor.

Le moteur à rapport volumétrique variable suivant la présente invention comprend une crémaillère de très petite dimension qui comporte un dispositif de réglage qui permet de fixer la position verticale initiale d'au moins une tige de contrôle par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle du moteur.The variable volumetric ratio motor according to the present invention comprises a rack of very small size which comprises an adjustment device which makes it possible to fix the initial vertical position of at least one control rod with respect to the initial vertical position of the other or other engine control rod (s).

Le moteur à rapport volumétrique variable suivant la présente invention comprend un dispositif de réglage, que comporte la crémaillère de très petite dimension qui est constitué d'un filetage qui peut être arrêté en rotation.The variable volumetric ratio motor according to the present invention comprises an adjusting device, which comprises the rack of very small size which consists of a thread which can be stopped in rotation.

Le moteur à rapport volumétrique variable suivant la présente invention comprend un moteur électrique 802 qui comporte un capteur permettant de renseigner le système de gestion du moteur sur la position angulaire dudit moteur électrique.The variable volumetric ratio motor according to the present invention comprises an electric motor 802 which comprises a sensor for informing the engine management system on the angular position of said electric motor.

Le moteur à rapport volumétrique variable suivant la présente invention comporte autant de moteurs électriques que de tiges de contrôle, lesdites tiges de contrôle possédant chacune leur propre moteur électrique pour régler leur position verticale.The variable volumetric ratio motor according to the present invention comprises as many electric motors as control rods, said control rods each having their own electric motor to adjust their vertical position.

Le moteur à rapport volumétrique variable suivant la présente invention comprend une tige de contrôle qui comporte deux épaulements de petit diamètre qui permettent de soulever deux valves de petit diamètre se trouvant respectivement dans des chambres supérieures et inférieures du vérin de commande, ladite tige de contrôle comportant également deux autres épaulements de gros diamètre qui permettent de soulever deux autres valves de gros diamètre se trouvant aussi respectivement dans les chambres supérieures et inférieures du vérin de commande, lesdits épaulements étant positionnés de sorte que les valves de petit diamètre soient toujours ouvertes par la tige de contrôle avant les valves de gros diamètre.The variable volumetric ratio motor according to the present invention comprises a control rod which has two small diameter shoulders which make it possible to lift two small diameter valves located respectively in upper and lower chambers of the control cylinder, said control rod comprising also two other large diameter shoulders that can lift two other large diameter valves are also respectively in the upper and lower chambers of the control cylinder, said shoulders being positioned so that the small diameter valves are always open by the rod control before large diameter valves.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des valves de petit diamètre présentent en leur centre un alésage traversé par la tige de contrôle, et une zone de contact sphérique qui vient coopérer avec une zone de contact conique aménagée dans les valves de gros diamètre.The variable volumetric ratio motor according to the present invention comprises small diameter valves having in their center a bore traversed by the control rod, and a spherical contact zone that cooperates with a conical contact zone arranged in the valves of wholesale diameter.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des valves de petit diamètre qui sont maintenues en contact avec les valves de gros diamètre logées dans la même chambre au moyen de ressorts venant prendre appui sur lesdites valves de petit diamètre d'une part, et sur la paroi de la chambre du vérin de commande dans laquelle elles sont logées d'autre part, lesdits ressorts permettant également de maintenir les valves de gros diamètre en contact avec un piston du vérin du vérin de commande.The variable volumetric ratio motor according to the present invention comprises small diameter valves which are kept in contact with the large diameter valves housed in the same chamber by means of springs coming to bear on said small diameter valves on the one hand, and on the wall of the chamber of the control jack in which they are housed on the other hand, said springs also making it possible to keep the large diameter valves in contact with a piston of the jack of the control cylinder.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des valves de petit diamètre qui sont maintenues en contact avec les valves de gros diamètre logées dans la même chambre au moyen d'au moins un ressort fixé sur un piston de vérin du vérin de commande et venant prendre appui sur lesdites valves de petit diamètre, ledit ressort permettant également de maintenir les valves de gros diamètre en contact avec le piston de vérin du vérin de commande.The variable volumetric ratio motor according to the present invention comprises small diameter valves which are held in contact with large diameter valves housed in the same chamber by means of at least one spring attached to a jack piston of the control cylinder. and coming to bear on said small diameter valves, said spring also to maintain the large diameter valves in contact with the cylinder piston of the control cylinder.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des valves de gros diamètre qui présentent une surface annulaire lisse pouvant être maintenue en contact avec une face lisse aménagée respectivement sur les faces supérieures et inférieures d'un piston de vérin du vérin de commande afin de réaliser une étanchéité avec ledit piston.The variable volumetric ratio motor according to the present invention comprises large diameter valves which have a smooth annular surface which can be kept in contact with a smooth face provided respectively on the upper and lower faces of a cylinder piston of the control cylinder so that to seal with said piston.

Le moteur à rapport volumétrique variable suivant la présente invention comprend des valves de gros diamètre qui comportent des moyens de centrage qui les maintiennent toujours centrées sur la tige de commande selon leur axe longitudinal.The variable volumetric ratio motor according to the present invention comprises large diameter valves which include centering means which keep them always centered on the control rod along their longitudinal axis.

Le moteur à rapport volumétrique variable suivant a présente invention comprend au moins une tige de contrôle d'un vérin de commande qui comporte au moins un capteur permettant de renseigner le système de gestion du moteur sur la position verticale de ladite tige de contrôle.The variable volumetric ratio motor according to the present invention comprises at least one control rod of a control cylinder which comprises at least one sensor for informing the engine management system on the vertical position of said control rod.

Le moteur à rapport volumétrique variable suivant la présente invention comprend au moins une crémaillère de commande comportant au moins un capteur permettant de renseigner le système de gestion du moteur sur la position verticale de ladite crémaillère.The variable volumetric ratio engine according to the present invention comprises at least one control rack having at least one sensor for informing the engine management system on the vertical position of said rack.

La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, permettra de mieux comprendre l'invention, les caractéristiques qu'elle présente et les avantages qu'elle est susceptible de procurer :

  • Figures 1 et 2 sont des vues en perspective illustrant un dispositif électromécanique suivant la présente invention permettant de piloter le taux de compression d'un moteur à rapport volumétrique variable.
  • Figure 3 est une vue schématique montrant une première variante du dispositif électromécanique suivant la présente invention.
  • Figure 4 est une vue schématique illustrant une seconde variante du dispositif électromécanique suivant la présente invention.
  • Figure 5 est une vue schématique représentant une troisième variante du dispositif électromécanique suivant la présente invention.
  • Figures 6 et 7 sont des vues montrant un dispositif de contrôle d'un moteur à rapport volumétrique variable suivant la présente invention.
The following description with reference to the accompanying drawings, given by way of non-limiting examples, will provide a better understanding of the invention, the characteristics it has and the advantages that it is likely to provide:
  • Figures 1 and 2 are perspective views illustrating an electromechanical device according to the present invention for controlling the compression ratio of a variable volumetric ratio engine.
  • Figure 3 is a schematic view showing a first variant of the electromechanical device according to the present invention.
  • Figure 4 is a schematic view illustrating a second variant of the electromechanical device according to the present invention.
  • Figure 5 is a schematic view showing a third variant of the electromechanical device according to the present invention.
  • Figures 6 and 7 are views showing a control device of a variable volumetric ratio motor according to the present invention.

On a montré en figures 1 et 2 un dispositif électromécanique 800 permettant de piloter le taux de compression d'un moteur à rapport volumétrique variable comprenant pour chaque cylindre un dispositif de transmission 1 et un piston 2. Le dispositif de transmission mécanique 1 comporte dans la partie inférieure du piston 2 un organe de transmission 3 solidaire dudit piston et coopérant, d'une part avec un dispositif de guidage à roulement 4, et d'autre part avec une roue dentée 5.La roue dentée 5 coopère avec une bielle 6 reliée à un vilebrequin 9 afin de réaliser la transmission du mouvement entre le piston 2 et ledit vilebrequin 9.La roue dentée 5 coopère à l'opposé de l'organe de transmission 3 avec une autre crémaillère dite crémaillère de commande 7 dont la position verticale par rapport au bloc moteur est pilotée par un dispositif de contrôle 12.Le dispositif de contrôle 12 du moteur à rapport volumétrique variable comporte un vérin de commande 8 qui est constitué d'une tige supérieure de vérin 10, d'une tige inférieure de vérin 16, d'un piston de vérin 13 et d'une tige de contrôle 20.We have shown in figures 1 and 2 an electromechanical device 800 for controlling the compression ratio of a variable volumetric ratio engine comprising for each cylinder a transmission device 1 and a piston 2. The mechanical transmission device 1 comprises in the lower part of the piston 2 a transmission member. transmission 3 secured to said piston and cooperating, on the one hand with a rolling guide device 4, and on the other hand with a toothed wheel 5.The gear 5 cooperates with a connecting rod 6 connected to a crankshaft 9 to achieve the transmission of the movement between the piston 2 and said crankshaft 9.The gear 5 cooperates opposite the transmission member 3 with another rack called control rack 7 whose vertical position relative to the engine block is driven by a control device 12.The control device 12 of the variable volumetric ratio engine comprises a control cylinder 8 which consists of a upper rod a cylinder 10, a lower cylinder rod 16, a cylinder piston 13 and a control rod 20.

Le dispositif électromécanique 800 comporte des moyens mécaniques de transmission du mouvement 801 entre au moins un moteur électrique 802 et au moins une tige de contrôle 20 d'un dispositif de contrôle 12 permettant de régler la position verticale de la crémaillère de commande 7 dudit moteur à rapport volumétrique variable.The electromechanical device 800 comprises mechanical means for transmitting the movement 801 between at least one electric motor 802 and at least one control rod 20 of a control device 12 for adjusting the vertical position of the control rack 7 of said motor. variable volumetric ratio.

Le moteur électrique 802 peut être, par exemple, un moteur pas à pas, un servomoteur ou un moteur linéaire.The electric motor 802 may be, for example, a stepper motor, a servomotor or a linear motor.

Le dispositif électromécanique 800 comprend un moteur électrique 802 qui comporte un capteur permettant de renseigner le système de gestion du moteur sur la position angulaire dudit moteur électrique.The electromechanical device 800 comprises an electric motor 802 which includes a sensor for informing the engine management system on the angular position of said electric motor.

Le dispositif électromécanique 800 comprend autant de moteurs électriques 802 que de tiges de contrôle 20, lesdites tiges de contrôle possédant chacune leur propre moteur électrique pour régler leur position verticale.The electromechanical device 800 comprises as many electric motors 802 as control rods 20, said control rods each having their own electric motor to adjust their vertical position.

Le dispositif électromécanique 800 comporte des moyens mécaniques de transmission 801 qui sont constitués d'au moins un arbre à cames 803 qui comporte au moins une came 804.The electromechanical device 800 comprises mechanical transmission means 801 which consist of at least one camshaft 803 which comprises at least one cam 804.

L'arbre à cames 803 peut être, par exemple, monté sur des paliers ou sur des roulements, non représentés.The camshaft 803 may be, for example, mounted on bearings or bearings, not shown.

Le profil de la came 804 de l'arbre à cames 803 peut être quelconque ou bien, par exemple, en spirale afin d'offrir un rapport constant entre le déplacement angulaire de l'arbre à cames 803 et le déplacement linéaire de l'organe qui est en contact avec la came.The profile of cam 803 of camshaft 803 may be any or, for example, spiral to provide a constant relationship between the angular displacement of camshaft 803 and the linear displacement of the member. who is in contact with the cam.

Le dispositif électromécanique 800 peut comporter un arbre à cames 803 qui est positionné au-dessus de la culasse du ou des vérin(s) de commande 8 du dispositif de contrôle 12 du moteur.The electromechanical device 800 may comprise a camshaft 803 which is positioned above the cylinder head of the control cylinder (s) 8 of the control device 12 of the engine.

Le dispositif électromécanique 800 peut comporter un arbre à cames 803 qui est positionné au-dessous du ou des vérin(s) de commande 8 du dispositif de contrôle 12 du moteur et à l'intérieur du bloc moteur dudit moteur.The electromechanical device 800 may comprise a camshaft 803 which is positioned below the control jack (s) 8 of the control device 12 of the engine and inside the engine block of said engine.

Le dispositif électromécanique 800 comprend un arbre à cames 803 qui comporte un capteur permettant de renseigner le système de gestion du moteur sur la position angulaire dudit arbre à cames.The electromechanical device 800 comprises a camshaft 803 which includes a sensor for informing the engine management system on the angular position of said camshaft.

Le dispositif électromécanique 800 comprend un arbre à cames 803 qui comporte un ressort 805 de rappel en rotation.The electromechanical device 800 comprises a camshaft 803 which comprises a spring 805 of return rotation.

Le ressort 805 peut être, par exemple, un ressort de torsion constitué d'un fil enroulé suivant une forme cylindrique ou un ressort en spirale constitué d'une tôle d'acier enroulée en spirale.The spring 805 may be, for example, a torsion spring consisting of a wire wound in a cylindrical shape or a spiral spring consisting of a spirally wound steel sheet.

Le dispositif électromécanique 800 comprend un arbre à cames 803 qui est relié au moteur électrique 802 par des moyens de transmission intermédiaires 806.The electromechanical device 800 comprises a camshaft 803 which is connected to the electric motor 802 by intermediate transmission means 806.

Les moyens de transmission intermédiaires 806 peuvent être constitués, par exemple, d'une roue dentée 807 qui coopère avec une vis sans fin 808.The intermediate transmission means 806 may consist, for example, of a toothed wheel 807 which cooperates with a worm 808.

En variante, les moyens de transmission intermédiaires 806 peuvent être constitués, par exemple, d'un système d'engrenage comportant au moins deux roues dentées, ou de roues dentées reliées entre elles par une chaîne ou de poulies crantées reliées entre elles par une courroie crantée.Alternatively, the intermediate transmission means 806 may consist, for example, of a gear system comprising at least two toothed wheels, or gears connected together by a chain or toothed pulleys interconnected by a belt. notched.

On a montré en figure 1, 2 et 4, le dispositif électromécanique 800 suivant la présente invention comprenant un arbre à cames 803 dont la position est déportée par rapport à celle de la ou des tige(s) de contrôle 20 du ou des vérin(s) de commande 8.We have shown in figure 1 , 2 and 4 , the electromechanical device 800 according to the present invention comprising a camshaft 803 whose position is offset relative to that of the control rod or rods 20 of the control cylinder (s) 8.

L'arbre à cames 803 permet de régler la position verticale de ladite ou desdites tige(s) de contrôle 20 du moteur par l'intermédiaire d'au moins un culbuteur 810 et 813.The camshaft 803 makes it possible to adjust the vertical position of the at least one control rod (s) 20 of the motor by means of at least one rocker 810 and 813.

Le culbuteur 810 et 813 peut être réalisé par exemple en fonderie, en acier forgé ou en tôle emboutie.The rocker 810 and 813 can be made for example in foundry, forged steel or stamped sheet.

Chaque culbuteur 810 comporte une articulation 811 prévue à proximité de son centre lui permettant de pivoter par rapport au moteur.Each rocker 810 has a hinge 811 provided near its center allowing it to pivot relative to the engine.

L'une des extrémités du culbuteur 810 coopère avec au moins une came 804 de l'arbre à cames 803 pour régler la position angulaire dudit culbuteur, tandis que l'autre extrémité dudit culbuteur coopère avec au moins une tige de contrôle 20 pour régler la position verticale de ladite tige de contrôle.One of the ends of the rocker arm 810 cooperates with at least one cam 804 of the camshaft 803 to adjust the angular position of said rocker arm, while the other end of said rocker arm cooperates with at least one control rod 20 to adjust the vertical position of said control rod.

On note que l'articulation 811 prévue à proximité du centre du culbuteur 810 peut être, par exemple, une rotule ou une liaison pivot.Note that the hinge 811 provided near the center of the rocker 810 may be, for example, a ball joint or a pivot connection.

Egalement, l'articulation 811, que comporte chaque culbuteur 810 à proximité de son centre, comporte un dispositif de réglage 812 qui permet de fixer la position verticale initiale d'au moins une tige de contrôle 20 d'un vérin de commande 8 par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle 20 de l'autre ou des autres vérin(s) de commande 8 du moteur.Also, the hinge 811, which each rocker arm 810 comprises near its center, comprises an adjusting device 812 which makes it possible to fix the initial vertical position of at least one control rod 20 of a control cylinder 8 relative to in the initial vertical position of the other or other control rod (s) 20 of the other or the other control cylinder (s) 8 of the engine.

Le dispositif de réglage 812, que comporte l'articulation 811 aménagée à proximité du centre de chaque culbuteur 810, est constitué d'un filetage qui peut être arrêté en rotation, par exemple, par un contre écrou, par collage, par clavetage ou par un frein de type « Nylstop ».The adjusting device 812, which comprises the hinge 811 arranged near the center of each rocker 810, consists of a thread which can be stopped in rotation, for example, by a counter nut, by gluing, by keying or by a "Nylstop" type brake.

On a représenté en figure 3 le dispositif électromécanique 800 suivant la présente invention comprenant un arbre à cames 803 qui est positionné dans l'axe longitudinal de la ou des tige(s) de contrôle 20 du ou des vérin(s) de commande 8 et perpendiculairement audit axe, et agit sur la position verticale de ladite ou desdites tige(s) de contrôle 20 par l'intermédiaire d'au moins un poussoir 809.We have shown in figure 3 the electromechanical device 800 according to the present invention comprising a camshaft 803 which is positioned in the longitudinal axis of the control rod (s) 20 of the control jack (s) 8 and perpendicular to said axis, and acts on the vertical position of said control rod (s) 20 via at least one pusher 809.

Le poussoir 809 comporte un dispositif de réglage qui permet de fixer la position verticale initiale d'au moins une tige de contrôle 20 par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle 20 de chaque vérin de commande 8 du moteur.The pusher 809 comprises an adjustment device which makes it possible to fix the initial vertical position of at least one control rod 20 with respect to the initial vertical position of the other one or more control rods 20 of each cylinder. motor control 8.

Le dispositif de réglage, que comporte le poussoir 809, est constitué d'un filetage pouvant être arrêté en rotation, par exemple, par un contre-écrou, par collage, par clavetage ou par un frein de type « Nylstop ».The adjustment device, which comprises the pusher 809, consists of a thread that can be stopped in rotation, for example, by a lock nut, by gluing, by keying or by a "Nylstop" type brake.

On a montré en figure 4 le dispositif électromécanique 800 suivant la présente invention comprenant un culbuteur 813 qui comporte à l'une de ses extrémités une articulation 814 lui permettant de pivoter par rapport au moteur d'une part, et une surface 815 ménagée à proximité de son centre et coopérant avec au moins une came 804 de l'arbre à cames 803 pour régler la position angulaire dudit culbuteur 813 d'autre part.We have shown in figure 4 the electromechanical device 800 according to the present invention comprising a rocker 813 which comprises at one of its ends a hinge 814 allowing it to pivot relative to the engine on the one hand, and a surface 815 formed near its center and cooperating with at least one cam 804 of the camshaft 803 for adjusting the angular position of said rocker 813 on the other hand.

L'autre extrémité dudit culbuteur 813 est prévue pour coopérer avec au moins une tige de contrôle 20 des vérins de commande 8 pour régler la position verticale de ladite tige de contrôle.The other end of said rocker 813 is provided to cooperate with at least one control rod 20 of the control cylinders 8 to adjust the vertical position of said control rod.

On note que l'articulation 814 que comporte le culbuteur 813 en son extrémité peut être, par exemple, une rotule ou une liaison pivot.Note that the hinge 814 that includes the rocker 813 at its end may be, for example, a ball joint or a pivot connection.

L'articulation 814, que comporte le culbuteur 813 en son extrémité et qui permet audit culbuteur de pivoter par rapport au moteur, comporte un dispositif de réglage 816 permettant de fixer la position verticale initiale d'au moins une tige de contrôle 20 par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle 20 du moteur.The hinge 814, which includes the rocker 813 at its end and which allows said rocker arm to pivot relative to the engine, comprises an adjusting device 816 for fixing the initial vertical position of at least one control rod 20 relative to the initial vertical position of the other one or more control rods 20 of the engine.

Le dispositif de réglage 816, que comporte l'articulation 814 aménagée à l'extrémité du culbuteur 813, est constitué d'un filetage qui peut être arrêté en rotation, par exemple, par un contre-écrou, par collage, par clavetage ou par un frein de type « Nylstop ».The adjusting device 816, which comprises the hinge 814 arranged at the end of the rocker 813, consists of a thread which can be stopped in rotation, for example, by a lock nut, by gluing, by keying or by a "Nylstop" type brake.

On a illustré en figure 5 le dispositif électromécanique 800 suivant la présente invention comprenant des moyens mécaniques de transmission du mouvement 801 entre au moins un moteur électrique 802 et au moins une tige de contrôle 20.We have illustrated in figure 5 the electromechanical device 800 according to the present invention comprising mechanical means for transmitting the movement 801 between at least one electric motor 802 and at least one control rod 20.

Les moyens mécaniques de transmission du mouvement 801 sont constitués d'au moins un arbre à roues dentées 817 qui comporte au moins une roue dentée 818 coopérant avec une crémaillère de très petite dimension 819 montée à l'extrémité d'au moins une tige de contrôle 20 du moteur.The mechanical transmission means of the movement 801 consist of at least one geared wheel 817 which comprises at least one toothed wheel 818 cooperating with a very small rack 819 mounted at the end of at least one control rod 20 of the engine.

L'arbre à roues dentées 817 peut être, par exemple, monté sur des paliers ou sur des roulements non représentés.The geared wheel 817 may be, for example, mounted on bearings or not shown bearings.

L'arbre à roues dentées 817 peut être, par exemple, monté sur des paliers ou sur des roulements non représentés.The geared wheel 817 may be, for example, mounted on bearings or not shown bearings.

Le dispositif électromécanique 800 comprend un arbre à roues dentées 817 qui est relié au moteur électrique 802 par des moyens de transmission intermédiaires 806.The electromechanical device 800 comprises a geared wheel shaft 817 which is connected to the electric motor 802 by intermediate transmission means 806.

Les moyens de transmission intermédiaires 806 peuvent être constitués, par exemple, d'une roue dentée 807 qui coopère avec une vis sans fin 808 ou d'un système d'engrenage comportant au moins deux roues dentées, de roues dentées reliées entre elles par une chaîne ou de poulies crantées reliées entre elles par une courroie crantée.The intermediate transmission means 806 may consist, for example, of a toothed wheel 807 which cooperates with an endless screw 808 or of a gear system comprising at least two toothed wheels, of wheels toothed interconnected by a chain or toothed pulleys interconnected by a toothed belt.

La crémaillère de très petite dimension 819 comporte un dispositif de réglage permettant de fixer la position verticale initiale d'au moins une tige de contrôle 20 par rapport à la position verticale initiale de l'autre ou des autres tige(s) de contrôle 20 du moteur.The rack of very small size 819 comprises an adjusting device for fixing the initial vertical position of at least one control rod 20 relative to the initial vertical position of the other or the other control rod (s) 20 of the engine.

Le dispositif de réglage, que comporte la crémaillère de très petite dimension 819, est constitué d'un filetage qui peut être arrêté en rotation, par exemple, par un contre-écrou, par collage, par clavetage ou par un frein de type « Nylstop ».The adjustment device, which comprises the rack of very small size 819, consists of a thread which can be stopped in rotation, for example, by a lock nut, by gluing, by keying or by a type of brake "Nylstop ".

Lorsque le dispositif électromécanique 800 suivant la présente invention comporte soit au moins un poussoir 809, soit au moins un culbuteur 810, 813, soit au moins crémaillère de très petite dimension 819, le réglage de la position verticale initiale des tiges de contrôle 20 du moteur les unes par rapport aux autres est effectué lors de l'assemblage du moteur.When the electromechanical device 800 according to the present invention comprises either at least one pusher 809, at least one rocker 810, 813, or at least a very small rack 819, the adjustment of the initial vertical position of the control rods 20 of the engine relative to each other is performed during the assembly of the engine.

Le réglage de la position verticale initiale des tiges de contrôle 20 lors de l'assemblage du moteur est effectué soit en mesurant l'altitude des pistons 2 du moteur au point mort haut au moyen d'un comparateur ou de tout autre instrument de mesure installé dans le puits de bougie, soit en mesurant le volume des chambres de combustion dudit moteur lorsque les pistons 2 dudit moteur sont au point mort haut.The adjustment of the initial vertical position of the control rods 20 during the assembly of the engine is carried out either by measuring the altitude of the pistons 2 of the engine at the top dead center by means of a comparator or any other measuring instrument installed. in the spark plug well, either by measuring the volume of the combustion chambers of said engine when the pistons 2 of said engine are at top dead center.

Selon un autre mode de réalisation, lorsque le dispositif électromécanique 800 coopère avec un poussoir 809, ou avec un culbuteur 810, 813, ou avec une crémaillère de très petite dimension 819, le dispositif de réglage de la position verticale initiale des tiges de contrôle 20 du moteur les unes par rapport aux autres peut être constitué d'un moteur électrique. A cet effet, chaque moteur électrique peut être, par exemple, un moteur piézoélectrique linéaire.According to another embodiment, when the electromechanical device 800 cooperates with a pusher 809, or with a rocker arm 810, 813, or with a rack of very small size 819, the device for adjusting the initial vertical position of the control rods 20 of the engine relative to each other may consist of an electric motor. For this purpose, each electric motor can be, for example, a linear piezoelectric motor.

Dans ce cas, le réglage de la position verticale initiale des tiges de contrôle 20 du moteur les unes par rapport aux autres peut s'effectuer moteur en marche, soit en mesurant la pression effective dans les chambres de combustion du moteur au moyen de capteurs appropriés, soit en déduisant la pression effective régnant dans les chambres de combustion du moteur à partir de la pression mesurée dans la chambre supérieure des vérins de commande du moteur au moyen d'au moins un capteur de pression.In this case, the adjustment of the initial vertical position of the engine control rods relative to each other can be effected by the engine running, or by measuring the effective pressure in the combustion chambers of the engine by means of appropriate sensors. or by deducing the effective pressure in the combustion chambers of the engine from the pressure measured in the upper chamber of the engine control cylinders by means of at least one pressure sensor.

On a montré en figures 6 et 7 un dispositif de contrôle 12 du moteur à rapport volumétrique variable comportant un vérin de commande 8 qui est constitué d'une tige supérieure de vérin 10, d'une tige inférieure de vérin 16, d'un piston de vérin 13 et d'une tige de contrôle 20.We have shown in figures 6 and 7 a control device 12 of the variable volumetric ratio engine comprising a control cylinder 8 which consists of an upper cylinder rod 10, a lower cylinder rod 16, a piston cylinder 13 and a rod control 20.

Le piston de vérin 13 comporte une bague de rotulage périphérique 180 qui épouse la forme sphérique dudit piston de vérin.The jack piston 13 comprises a peripheral swivel ring 180 which matches the spherical shape of said jack piston.

La tige supérieure de vérin 10 comporte dans sa partie interne et en son centre un clapet anti-retour 185 de compensation des fuites dont l'entrée est en communication avec une chambre 184 ménagée dans la culasse 300 du vérin de commande 8.The upper cylinder rod 10 has in its inner part and in its center a non-return valve 185 of leak compensation whose input is in communication with a chamber 184 formed in the cylinder head 300 of the control cylinder 8.

La tige de contrôle 20 du vérin de commande 8 du dispositif électromécanique 800 comporte deux épaulements 23 de petit diamètre permettant de soulever deux valves 21 de petit diamètre se trouvant respectivement dans les chambres supérieures 121 et inférieure 122 du vérin de commande 8.The control rod 20 of the control jack 8 of the electromechanical device 800 has two shoulders 23 of small diameter for lifting two small diameter valves 21 located respectively in the upper chambers 121 and lower 122 of the control jack 8.

La tige de contrôle 20 comporte, également, deux épaulements 24 de gros diamètre qui permettent de soulever deux valves 25 de gros diamètre se trouvant aussi respectivement dans les chambres supérieures 121 et inférieure 122 du vérin de commande 8.The control rod 20 also comprises two shoulders 24 of large diameter which make it possible to lift two large diameter valves 25 which are also respectively in the upper chambers 121 and lower 122 of the control jack 8.

Les épaulements 23 de petit diamètre et les épaulements 24 de gros diamètre sont positionnés de sorte que les valves de petit diamètre 21 soient toujours ouvertes par la tige de contrôle 20 avant les valves 25 de gros diamètre.The shoulders 23 of small diameter and the shoulders 24 of large diameter are positioned so that small diameter valves 21 are always open by the control rod 20 before the valves 25 of large diameter.

Les valves 21 de petit diamètre comportent en leur centre un alésage traversé par la tige de contrôle 20, et une zone de contact sphérique 26 qui vient coopérer avec une zone de contact conique 27 aménagée dans les valves 25 de gros diamètre.The small diameter valves 21 comprise in their center a bore through which the control rod 20 passes, and a spherical contact zone 26 which cooperates with a conical contact zone 27 arranged in the large diameter valves 25.

Selon un mode particulier de réalisation, l'alésage aménagé au centre des valves 21 de petit diamètre et qui est traversé par la tige de contrôle 20 peut comporter une gorge contenant un joint d'étanchéité 28 pouvant être torique en matériau élastique, ou en deux parties l'une annulaire directement en contact avec la tige de contrôle 20 et qui présente des caractéristiques particulières de résistance à l'usure, et l'autre torique qui présente des caractéristiques particulières d'élasticité et d'étanchéité et qui reste toujours en contact avec le fond de ladite gorge.According to a particular embodiment, the bore formed in the center of the valves 21 of small diameter and which is traversed by the control rod 20 may comprise a groove containing a seal 28 can be toric elastic material, or in two parts one annular directly in contact with the control rod 20 and which has particular characteristics of wear resistance, and the other ring which has particular characteristics of elasticity and sealing and which always remains in contact with the bottom of said throat.

A cet effet, pour faciliter le montage du joint 28, les valves 21 de petit diamètre peuvent être réalisées en deux parties qui sont assemblées par frettage, collage ou sertissage après montage du joint.For this purpose, to facilitate the mounting of the seal 28, the small diameter valves 21 can be made in two parts which are assembled by shrinking, gluing or crimping after mounting the seal.

Les valves 21 de petit diamètre sont maintenues en contact avec les valves 25 de gros diamètre logées dans la même chambre au moyen de ressorts 22 venant prendre appui sur lesdites valves 21 de petit diamètre d'une part, et sur la paroi de la chambre 121, 122 du vérin de commande 8 dans laquelle elles sont logées d'autre part, lesdits ressorts 22 permettant également de maintenir les valves 25 de gros diamètre en contact avec le piston du vérin 13 du vérin de commande 8.The small diameter valves 21 are held in contact with the large diameter valves 25 housed in the same chamber by means of springs 22 bearing on said small diameter valves 21 and on the wall of the chamber 121. , 122 of the control cylinder 8 in which they are housed on the other hand, said springs 22 also making it possible to keep the large diameter valves 25 in contact with the piston of the jack 13 of the control jack 8.

Selon un mode particulier de réalisation, les ressorts 22 peuvent être, par exemple, de type hélicoïdal et être montés coaxialement à la tige de contrôle 20.According to a particular embodiment, the springs 22 may be, for example, of helical type and be mounted coaxially with the control rod 20.

En variante, les valves 21 de petit diamètre sont maintenues en contact avec les valves 25 de gros diamètre logées dans la même chambre 121, 122 au moyen d'au moins un ressort fixé sur le piston de vérin 13 et venant prendre appui sur lesdites valves de petit diamètre, ledit ressort permettant également de maintenir les valves 25 de gros diamètre en contact avec le piston de vérin 13 du vérin de commande 8.Alternatively, the small diameter valves 21 are held in contact with the large diameter valves 25 housed in the same chamber 121, 122 by means of at least one spring attached to the piston cylinder 13 and coming to bear on said small diameter valves, said spring also making it possible to keep the large diameter valves 25 in contact with the jack piston 13 of the control jack 8.

Selon un mode particulier de réalisation, le ressort fixé sur le piston de vérin 13 peut être constitué d'une tôle d'acier de forme appropriée ou peut être un ressort de torsion constitué d'un enroulement de fil d'acier.According to a particular embodiment, the spring fixed on the jack piston 13 may consist of a sheet of steel of suitable shape or may be a torsion spring consisting of a winding of steel wire.

Les valves 25 de gros diamètre comportent une surface annulaire lisse 29 pouvant être maintenue en contact avec une face lisse aménagée respectivement sur les faces supérieures et inférieures du piston du vérin 13 du vérin de commande 8 afin de réaliser une étanchéité avec ledit piston.The large diameter valves 25 have a smooth annular surface 29 which can be kept in contact with a smooth face respectively provided on the upper and lower faces of the piston of the cylinder 13 of the control jack 8 in order to seal with said piston.

Les valves 25 de gros diamètre comportent des moyens de centrage qui les maintiennent toujours centrées sur la tige de commande 20 selon leur axe longitudinal.The large diameter valves 25 have centering means which keep them always centered on the control rod 20 along their longitudinal axis.

Selon un mode particulier de réalisation, les moyens de centrage qui assurent le centrage des valves de gros diamètre sur la tige de commande 20 laissent une mobilité radiale suffisante aux dites valves 25 de gros diamètre pour que l'étanchéité entre lesdites valves et le piston du vérin 13 du vérin de commande 8 soit toujours réalisée quelle que soit l'orientation dudit piston par rapport au moteur.According to a particular embodiment, the centering means which ensure the centering of large diameter valves on the control rod 20 leave sufficient radial mobility to said large diameter valves 25 so that the seal between said valves and the piston of the cylinder 13 of the control cylinder 8 is always achieved regardless of the orientation of said piston relative to the engine.

Le dispositif électromécanique 800 comprend au moins une tige de contrôle 20 qui comporte au moins un capteur permettant de renseigner le système de gestion du moteur sur la position verticale de ladite tige.The electromechanical device 800 comprises at least one control rod 20 which comprises at least one sensor for informing the engine management system on the vertical position of said rod.

Le dispositif électromécanique 800 comprend au moins une crémaillère de commande 7 qui comporte au moins un capteur permettant de renseigner le système de gestion du moteur sur la position verticale de ladite crémaillère.The electromechanical device 800 comprises at least one control rack 7 which comprises at least one sensor for informing the engine management system on the vertical position of said rack.

Il doit d'ailleurs être entendu que la description qui précède n'a été donnée qu'à titre d'exemple et qu'elle ne limite nullement le domaine de l'invention dont on ne sortirait pas en remplaçant les détails d'exécution décrits par tout autre équivalent sans sortir du cadre de la revendication 1.It must also be understood that the foregoing description has been given by way of example only and that it in no way limits the scope of the invention which could not be overcome by replacing the execution details described. by any other equivalent without departing from the scope of claim 1.

Claims (30)

  1. A variable compression ratio engine comprising an electromechanical device (800) making it possible to steer the compression ratio of said engine, said variable compression ratio engine comprising at least one transmission device (1) making it possible to transmit movement to each piston (2) by means of a transmission member (3) secured to said piston and engaging on the one hand with a rolling guiding device (4) and on the other hand with a toothed wheel (5) mounted on a connecting rod (6) secured to a crankshaft (9), a control rack (7) engaging opposite the transmission member (3) with the toothed wheel (5), and at least one control device (12), said control device (12) including, for each piston (2), on the one hand a control actuator (8) that is made up of an actuator piston (13) secured to an upper actuator pin (10) and a lower actuator pin (16) engaging with said control rack (7), and on the other hand a control rod (20) passing through the actuator piston (13) so as to steer the vertical position of said control rack (7) relative to the engine block of said engine, characterized in that it includes mechanical movement transmission means (801) that are made up of a shaft (803, 817) comprising at least one cam (804) or at least one toothed wheel (818), said mechanical movement transmission means (801) of said electromechanical device (800) being positioned between at least one electric engine (802) and at least one control rod (20) of a control actuator (8) of the control device (12) to make it possible to adjust the vertical position of the control rack (7) of said variable compression ratio engine.
  2. The variable compression ratio engine according to claim 1, characterized in that the shaft (803) comprising at least one cam (804) is positioned above a cylinder head (300) of the control actuator(s) (8) of said engine.
  3. The variable compression ratio engine according to claim 1, characterized in that the shaft (803) comprising at least one cam (804) is positioned below the control actuator(s) (8) of the engine, inside the engine block of said engine.
  4. The variable compression ratio engine according to claim 1, characterized in that the shaft (803) comprising at least one cam (804) includes a sensor making it possible to inform the management system of the engine about the angular position of said camshaft.
  5. The variable compression ratio engine according to claim 1, characterized in that the shaft (803) comprising at least one cam (804) includes a rotational return spring (805).
  6. The variable compression ratio engine according to claim 1, characterized in that the shaft (803) comprising at least one cam (804) is connected to the electric engine (802) by intermediate transmission means (806).
  7. The variable compression ratio engine according to claim 1, characterized in that the shaft (803) comprising at least one cam (804) is positioned in the longitudinal axis of the control rod(s) (20) of the control actuator(s) (8) and perpendicular to said axis, and acts on the vertical position of said control rod(s) (20) by means of at least one pusher (809).
  8. The variable compression ratio engine according to claim 7, characterized in that the pusher (809) includes an adjusting device that makes it possible to set the initial vertical position of at least one control rod (20) relative to the initial vertical position of the other control rod(s) (20) of the engine.
  9. The variable compression ratio engine according to claim 8, characterized in that the adjusting device included in the pusher (809) is made up of a thread that may be stopped in rotation.
  10. The variable compression ratio engine according to claim 1, characterized in that the position of the shaft (803) comprising at least one cam (804) is offset relative to that of the control rod(s) (20) of the control actuator(s) (8), said shaft (803) making it possible to adjust the vertical position of said control rod(s) (20) of the engine by means of at least one rocker arm (810, 813).
  11. The variable compression ratio engine according to claim 10, characterized in that the rocker arm (810) includes a joint (811) close to its center allowing it to pivot relative to the engine, one of the ends of said rocker arm engaging with at least one cam (804) of the shaft (803) to adjust the angular position of said rocker arm, while the other end of said rocker arm (810) engages with at least one control rod (20) to adjust the vertical position of said control rod.
  12. The variable compression ratio engine according to claim 11, characterized in that the joint (811), comprised by the rocker arm (810) near its center and which allows the rocker arm to pivot relative to the engine, includes an adjusting device (812) that makes it possible to set the initial vertical position of at least one control rod (20) relative to the initial vertical position of the other control rod(s) (20) of the engine.
  13. The variable compression ratio engine according to claim 12, characterized in that the adjusting device (812), included in the joint (811) formed near the center of the rocker arm (810), is made up of a thread that can be stopped in rotation.
  14. The variable compression ratio engine according to claim 10, characterized in that the rocker arm (813) includes a joint (14) at the end thereof allowing it to pivot relative to the engine on the one hand, and a surface (815) formed near its center engaging with at least one cam (804) of the shaft (803) to adjust the angular position of said rocker arm on the other hand, the other end of said rocker arm (813) engaging with at least one control rod (20) to adjust the vertical position of said control rod.
  15. The variable compression ratio engine according to claim 14, characterized in that the joint (814), comprised by the rocker arm (813) at the end thereof and which allows said rocker arm to pivot relative to the engine, includes an adjusting device (816) that makes it possible to set the initial vertical position of at least one control rod (20) relative to the initial vertical position of the other control rod(s) (20) of the engine.
  16. The variable compression ratio engine according to claim 15, characterized in that the adjusting device (816), included in the joint (814) formed at the end of the rocker arm (813), is made up of a thread that can be stopped in rotation.
  17. The variable compression ratio engine according to claim 1, characterized in that the shaft (817) includes at least one toothed wheel (818) engaging with a very small rack (819) mounted at the end of at least one control rod (20) of the engine.
  18. The variable compression ratio engine according to claim 17, characterized in that intermediate transmission means (806) make it possible to connect the shaft (817) to the electric engine (802).
  19. The variable compression ratio engine according to claim 17, characterized in that the very small rack (819) includes an adjusting device that makes it possible to set the initial vertical position of at least one control rod (20) relative to the initial vertical position of the other control rod(s) (20) of the engine.
  20. The variable compression ratio engine according to claim 19, characterized in that the adjusting device, included in the very small rack (819), is made up of a thread that can be stopped in rotation.
  21. The variable compression ratio engine according to claim 1, characterized in that the electric engine (802) includes a sensor making it possible to inform the management system of the engine about the angular position of said electric engine.
  22. The variable compression ratio engine according to claim 1, characterized in that it includes as many electric engines as there are control rods (20), said control rods (20) each having their own electric engine to adjust their vertical position.
  23. The variable compression ratio engine according to claim 1, characterized in that the control rod (20) includes two shoulders (23) of small diameter that make it possible to raise two valves (21) of small diameter respectively located in two upper (121) and lower (122) chambers of the control actuator (8) separated by the actuator piston (13), said control rod (20) also including two other shoulders (24) of large diameter that make it possible to raise two other valves (25) of large diameter also respectively located in the upper (121) and lower (122) chambers of the control actuator (8), said shoulders being positioned so that the valves (21) of small diameter are always opened by the control rod (20) before the valves (25) of large diameter.
  24. The variable compression ratio engine according to claim 23, characterized in that the valves (21) of small diameter have a bore in their center through which the control rod (20) passes, and a spherical contact area (26) that engages with a conical contact area (27) formed in the valves (25) of large diameter.
  25. The variable compression ratio engine according to claim 23, characterized in that the valves (21) of small diameter are kept in contact with the valves (25) of large diameter housed in the same chamber (121, 122) using springs (22) bearing on said valves of small diameter on the one hand, and on the wall of the chamber (121, 122) of the control actuator (8) in which they are housed on the other hand, said springs (22) also making it possible to keep the valves (25) of large diameter in contact with the piston of the actuator (13) of the control actuator (8).
  26. The variable compression ratio engine according to claim 23, characterized in that the valves (21) of small diameter are kept in contact with the valves (25) of large diameter housed in the same chamber (121, 122) by at least one spring fastened on the actuator piston (13) of the control actuator (8) and bearing on said valves of small diameter, said spring also making it possible to keep the valves of large diameter in contact with the actuator piston (13) of the control actuator (8).
  27. The variable compression ratio engine according to claim 23, characterized in that the valves (25) of large diameter have a smooth annular surface (29) that can be kept in contact with a smooth surface respectively formed on the upper and lower surfaces of the actuator piston (13) of the control cylinder (8) in order to achieve sealing with said piston.
  28. The variable compression ratio engine according to claim 23, characterized in that the valves (25) of large diameter include centering means always keeping them centered on the control rod along their longitudinal axis.
  29. The variable compression ratio engine according to claim 1, characterized in that at least one of the control rods (20) of a control actuator (8) includes at least one sensor making it possible to inform the management system of the engine about the vertical position of said control rod (20).
  30. The variable compression ratio engine according to claim 1, characterized in that at least one of the control racks (7) includes at least one sensor making it possible to inform the management system of the engine about the vertical position of said rack.
EP07730865A 2006-01-26 2007-01-26 Electromechanical device for controlling a variable compression ratio engine Not-in-force EP1979595B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0600708A FR2896538B1 (en) 2006-01-26 2006-01-26 ELECTROMECHANICAL DEVICE FOR CONTROLLING A VARIABLE VOLUMETRIC RATIO ENGINE
US76290406P 2006-01-30 2006-01-30
PCT/FR2007/000147 WO2007085737A2 (en) 2006-01-26 2007-01-26 Electromechanical device for controlling a variable compression ratio engine

Publications (2)

Publication Number Publication Date
EP1979595A2 EP1979595A2 (en) 2008-10-15
EP1979595B1 true EP1979595B1 (en) 2012-10-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07730865A Not-in-force EP1979595B1 (en) 2006-01-26 2007-01-26 Electromechanical device for controlling a variable compression ratio engine

Country Status (10)

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US (1) US8104437B2 (en)
EP (1) EP1979595B1 (en)
JP (1) JP5219838B2 (en)
KR (1) KR101257976B1 (en)
CN (1) CN101375043B (en)
AU (1) AU2007209222B2 (en)
CA (1) CA2640843A1 (en)
ES (1) ES2396450T3 (en)
FR (1) FR2896538B1 (en)
WO (1) WO2007085737A2 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2914951B1 (en) 2007-04-16 2012-06-15 Vianney Rabhi ELECTROHYDRAULIC DEVICE FOR CLOSED LOOP DRIVING OF THE CONTROL JACK OF A VARIABLE COMPRESSION RATE MOTOR.
DE102010009907A1 (en) * 2010-03-02 2011-09-08 Daimler Ag reciprocating engine
KR101305843B1 (en) 2011-11-30 2013-09-06 현대자동차주식회사 Crank Shaftless Internal Combustion Engine
BR112015019718B1 (en) * 2013-02-18 2022-02-08 Nissan Motor Co., Ltd CONTROL DEVICE AND CONTROL METHOD FOR AN INTERNAL COMBUSTION ENGINE
EP2930329B1 (en) * 2014-04-08 2016-12-28 Gomecsys B.V. An internal combustion engine including variable compression ratio
CN104612825B (en) * 2015-01-09 2023-11-17 范伟俊 Engine with variable compression ratio
FR3032234B1 (en) * 2015-01-30 2020-01-17 Vianney Rabhi THERMAL MOTOR WITH TRANSFER-RELAXATION AND REGENERATION
FR3051838B1 (en) * 2016-05-24 2018-09-07 MCE 5 Development DEVICE FOR GUIDING A PISTON OF A COMBUSTION PISTON FOR A VARIABLE COMPRESSION RATE MOTOR
US11187184B2 (en) * 2019-03-29 2021-11-30 Vianney Rabhi Articulated plenum for transfer-expansion-regeneration combustion engine
CN114856838B (en) * 2022-04-02 2023-03-17 辽宁工程技术大学 Variable compression ratio mechanism for automatic control adjustment gasoline engine

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4202300A (en) * 1978-02-22 1980-05-13 Frank Skay Internal combustion engine
US4270495A (en) * 1979-05-31 1981-06-02 General Motors Corporation Variable displacement piston engine
CN1053472A (en) * 1991-01-24 1991-07-31 牛保明 Motor
JPH0754829A (en) * 1993-06-01 1995-02-28 Sokan Shu Crank device
US5406911A (en) * 1993-08-12 1995-04-18 Hefley; Carl D. Cam-on-crankshaft operated variable displacement engine
FR2763097B1 (en) * 1997-05-09 1999-09-03 Vianney Paul Rabhi DEVICE FOR CONTROLLING THE POSITION OF THE CONTROL RACK OF A VARIABLE CYLINDER MOTOR
US6260532B1 (en) * 1998-09-28 2001-07-17 Edward Charles Mendler Rigid crankshaft cradle and actuator
FR2786530B1 (en) * 1998-11-26 2001-01-19 Vianney Rabhi MECHANICAL TRANSMISSION DEVICE FOR A VARIABLE CYLINDER MOTOR
FR2827634B1 (en) * 2001-07-18 2003-10-03 Vianney Rabhi IMPROVEMENTS ON MECHANICAL TRANSMISSION DEVICES FOR A VARIABLE CYLINDER ENGINE
JP4416377B2 (en) * 2002-05-16 2010-02-17 日産自動車株式会社 Control device for internal combustion engine
JP2005163695A (en) * 2003-12-04 2005-06-23 Nissan Motor Co Ltd Internal combustion engine compression ratio control device
FR2867515B1 (en) * 2004-03-11 2006-06-02 Vianney Rabhi ADJUSTING DEVICE FOR VARIABLE VOLUMETRIC RATIO ENGINE

Also Published As

Publication number Publication date
KR101257976B1 (en) 2013-04-24
WO2007085737A3 (en) 2007-09-20
FR2896538B1 (en) 2008-05-02
KR20080098009A (en) 2008-11-06
US20090266337A1 (en) 2009-10-29
CN101375043B (en) 2011-05-18
WO2007085737A2 (en) 2007-08-02
JP5219838B2 (en) 2013-06-26
ES2396450T3 (en) 2013-02-21
FR2896538A1 (en) 2007-07-27
JP2009524767A (en) 2009-07-02
CA2640843A1 (en) 2007-08-02
AU2007209222B2 (en) 2011-07-21
US8104437B2 (en) 2012-01-31
EP1979595A2 (en) 2008-10-15
AU2007209222A1 (en) 2007-08-02
CN101375043A (en) 2009-02-25

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