Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/0012—Valves
  • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
  • F02M63/0033—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat
  • F02M63/0036—Lift valves, i.e. having a valve member that moves perpendicularly to the plane of the valve seat with spherical or partly spherical shaped valve member ends
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
  • F02M55/04—Means for damping vibrations or pressure fluctuations in injection pump inlets or outlets
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
  • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
  • F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
  • F02M61/188—Spherical or partly spherical shaped valve member ends
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
  • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
  • F02M61/20—Closing valves mechanically, e.g. arrangements of springs or weights or permanent magnets; Damping of valve lift
  • F02M61/205—Means specially adapted for varying the spring tension or assisting the spring force to close the injection-valve, e.g. with damping of valve lift
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/001—Fuel-injection apparatus having injection valves held closed mechanically, e.g. by springs, and opened by a cyclically-operated mechanism for a time
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/0012—Valves
  • F02M63/0031—Valves characterized by the type of valves, e.g. special valve member details, valve seat details, valve housing details
  • F02M63/005—Pressure relief valves
  • F02M63/0052—Pressure relief valves with means for adjusting the opening pressure, e.g. electrically controlled
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/0012—Valves
  • F02M63/007—Details not provided for in, or of interest apart from, the apparatus of the groups F02M63/0014 - F02M63/0059
  • F02M63/0075—Stop members in valves, e.g. plates or disks limiting the movement of armature, valve or spring
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
  • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
  • F02M63/023—Means for varying pressure in common rails
  • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
  • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
  • F02M63/023—Means for varying pressure in common rails
  • F02M63/0235—Means for varying pressure in common rails by bleeding fuel pressure
  • F02M63/025—Means for varying pressure in common rails by bleeding fuel pressure from the common rail
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
  • F02M63/02—Fuel-injection apparatus having several injectors fed by a common pumping element, or having several pumping elements feeding a common injector; Fuel-injection apparatus having provisions for cutting-out pumps, pumping elements, or injectors; Fuel-injection apparatus having provisions for variably interconnecting pumping elements and injectors alternatively
  • F02M63/0225—Fuel-injection apparatus having a common rail feeding several injectors ; Means for varying pressure in common rails; Pumps feeding common rails
  • F02M63/023—Means for varying pressure in common rails
  • F02M63/026—Means for reducing the pressure in common rails at power off
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K15/00—Check valves
  • F16K15/02—Check valves with guided rigid valve members
  • F16K15/04—Check valves with guided rigid valve members shaped as balls
  • F16K15/044—Check valves with guided rigid valve members shaped as balls spring-loaded
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
  • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
  • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
  • F16K17/0406—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded in the form of balls
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
  • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
  • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
  • F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
  • F16K17/06—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded with special arrangements for adjusting the opening pressure
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02D—CONTROLLING COMBUSTION ENGINES
  • F02D41/00—Electrical control of supply of combustible mixture or its constituents
  • F02D41/30—Controlling fuel injection
  • F02D41/38—Controlling fuel injection of the high pressure type
  • F02D41/3809—Common rail control systems
  • F02D41/3836—Controlling the fuel pressure
  • F02D41/3863—Controlling the fuel pressure by controlling the flow out of the common rail, e.g. using pressure relief valves
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
  • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
  • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
  • F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
  • F02M2200/50—Arrangements of springs for valves used in fuel injectors or fuel injection pumps
  • F02M2200/505—Adjusting spring tension by sliding spring seats

Definitions

• the invention relates to a pressure regulating valve for a fuel injection system of a
• Internal combustion engine having the features of the preamble of claim 1. Furthermore, the invention relates to a method for pressure regulation in a fuel injection system of an internal combustion engine with the features of the preamble of claim 7.
• a pressure control valve for regulating the pressure in a high pressure fuel accumulator which is connectable to the high-pressure fuel accumulator and having a valve piston, which counter to the pressure in the high pressure fuel accumulator by a spring force of a spring in the closed position is charged. Furthermore, a first controllable magnetic device is provided, whose force counteracts the spring force acting on the valve piston, and a second magnetic device whose force supports the spring force.
• the known pressure control valve is therefore a
• a safety function is to be implemented by the spring force, which ensures emergency operation functionality in the event of a fault
• spring-assisting, second magnetic device can be used a weaker spring.
• the spring force of the spring is used to set the mechanical opening pressure of the valve, which is preferably in the middle pressure range of the system. Due to the force of the additional magnet device, which adds to the spring force, the opening pressure can be limited to a range between the mechanical opening pressure and a maximum permissible sys- temtik be controlled so that when the maximum allowable system pressure in the high pressure fuel accumulator is exceeded, the valve opens and a pressure limit is ensured.
• the weaker spring ensures that the system pressure remains within the operating range in the event of a power supply error.
• Closing element of the pressure regulating valve acted upon in the opening direction, so that in the absence of energization, the connection is released from the high-pressure accumulator in a low pressure region.
• a normally open pressure regulating valve can be seen for example from DE 10 2004 002 964 A1.
• the closing of the valve closure element is effected here by means of a magnetic actuator which comprises a coil and an armature plate.
• valve chamber 25 and the valve chamber are usually not pressure balanced.
• the present invention seeks to provide a pressure control valve having an increasing Aktorkraft-A / entilhub characteristic. It is also intended to provide a pressure regulating valve with reduced moving masses which is also less sensitive to low pressure disturbances.
• the pressure regulating valve is proposed with the features of claim 1.
• Advantageous developments of the invention are specified in the 35 dependent claims. Further, a method proposed for pressure control in a fuel injection system of an internal combustion engine to solve the problem.
• the proposed pressure control valve for a fuel injection system of an internal combustion engine in particular a common rail injection system, comprises a valve housing with a bore in which a single or multi-part formed, axially displaceable valve closing element and a spring are accommodated.
• the spring force of the spring acts on the valve closing element in the direction of a valve seat.
• the spring is supported on the one hand on the valve closing element and on the other hand on a spring plate, which is received in the bore and adjustable in terms of its axial position within the bore.
• means for adjusting the axial position of the spring plate are provided.
• the proposed pressure control valve is based on the principle of a passive pressure-holding valve, in which the closing force is effected by means of a spring. As long as the force acting on the valve closing element hydraulic force is smaller than the set spring force, the pressure-maintaining valve remains closed. The same applies to the proposed pressure control valve according to the invention.
• the opening force is adjusted by the spring force of the spring, which in this case is variable, in order to be able to further effect a pressure control.
• the adjustment of the spring force takes place via an adjustment of the axial position of a spring plate on which the spring is supported.
• a spring for generating a force acting in the closing direction of the valve pressure force has the advantage that the moving masses can be kept low.
• the preferred use of a stiff spring also leads to a high natural frequency.
• According to a preferred embodiment of the invention are electrical, electromagnetic and / or mechanical means for adjusting the axial position provided the spring plate. By means of such means, a defined change in position of the spring plate and thus a precise adjustment of the spring force can be made.
• the means for adjusting the axial position of the spring plate comprise an electromagnet and / or a threaded spindle.
• a magnetic actuator can be provided, which causes an axial adjustment of the spring plate within the bore directly or indirectly.
• a rotary drive can be provided, which cooperates with a threaded spindle as a mechanical adjusting means.
• the spring plate may be formed as a spindle nut, so that the rotation of the threaded spindle is directly effected an axial adjustment of the spring plate.
• a variety of other adjustment means for axial adjustment of the spring plate can be used, which can not be exhaustively listed here.
• the valve closing element with a
• Valve seat has cooperating, spherical shaped sealing surface.
• a good sealing effect is achieved in this way, since an annular contact area is formed.
• a self-centering of the valve closing element can be effected via the spherically shaped sealing surface.
• valve closing element is designed in several parts and comprises a spherical sealing body and a valve piston.
• the spring is preferably supported on the valve piston, which thus serves as a force transmission member.
• valve piston transmitted to the sealing body spring force causes the sealing body is returned to the valve seat or held in sealing contact with the valve seat.
• the valve piston preferably has a spherically shaped recess in the region of an end face facing the sealing body.
• the spherically shaped recess preferably has a diameter which corresponds to the diameter of the spherical sealing body or is chosen larger. A larger diameter promotes self-centering of the spherical sealing body with respect to the valve seat.
• the axial distance between the valve closing element and the spring plate is variable, which has an influence on the spring force of the spring supported thereon. During the opening stroke of the valve closing element causes a passive increase in the spring force, so that a sufficient
• Closing force is ensured by means of an active adjustment of the axial position of the spring plate, a pressure control can be realized.
• the valve housing has at least one radial bore for connecting the bore to a low-pressure region.
• the low-pressure region is advantageously connected via a return line to a fuel tank, in particular to perform a controlled via the pressure control valve fuel quantity to the fuel tank.
• a high-pressure fuel accumulator of a fuel injection system is claimed with a pressure control valve according to the invention for pressure control and / or pressure limiting in high-pressure fuel storage.
• the use of a pressure control valve according to the invention in a high-pressure fuel storage is therefore to be regarded as a preferred application.
• a defined opening pressure is adjustable via the spring of the pressure regulating valve, so that the pressure regulating valve opens when a maximum permissible pressure is exceeded and causes a pressure limitation.
• the valve allows pressure control, since the spring force of the spring is variably adjustable via an axial positional adjustment of the spring plate.
• the pressure regulating valve according to the invention which is particularly suitable for use in a high-pressure fuel accumulator, is further distinguished by the fact that expensive setting operations during assembly can be dispensed with. For the fine adjustment can be effected already after the assembly on the means for adjusting the axial position of the spring plate on which the spring is supported. This means that the calibration can also be carried out only after the installation of the pressure control valve in the internal combustion engine.
• the spring force of the spring is variably adjustable, wherein the adjustment is effected by adjusting the axial position of a spring plate, on which the spring is supported in the axial direction.
• the setting of the opening force is therefore effected via the adjustment of the spring force, which is therefore also variable.
• the proposed method thus allows both a pressure limit, as well as a pressure control in the fuel injection system.
• the adjustment of the axial position of the spring plate is effected by electrical, electromagnetic and / or mechanical means for adjustment.
• the adjusting means may comprise an electromagnet and / or a threaded spindle.
• the electromagnet is furthermore preferably part of a magnetic actuator, by means of which the spring plate can be acted upon directly or indirectly.
• a piezoelectric actuator can also be used as adjusting means.
• the use of mechanical adjustment is possible.
• the abovementioned adjusting means are given by way of example only. A variety of other adjustment can be used, which can not be exhaustively listed here.
• the schematic longitudinal section of the single FIGURE shows a valve housing 1 with an axially extending bore 2, in which a multipart valve closure element 3, comprising a spherical sealing body 9 and a valve piston 10, is received in an axially displaceable manner.
• the valve piston 10 is acted upon by the spring force of a spring 4, which is also received in the bore 2, so that this part of the bore 2 serves as a spring chamber 14.
• the spring force of the spring 4 acts in the direction of a valve seat 5, which is formed substantially conical and is formed at one end of the bore 2.
• the valve piston 10 transmits the spring force to the spherical
• valve piston 10 has a spherically shaped recess 12 in the area of a standing surface 11 facing the sealing body 9, the diameter of the spherically shaped recess 12 substantially corresponding to the diameter of the spherical sealing body 9.
• the valve closing element 3 Due to the spherical shape of the sealing body 9, the valve closing element 3 has a spherical or spherically shaped sealing surface 8, which cooperates sealingly with the valve seat 5. Due to the spherical or spherically shaped sealing surface 8 of the sealing body 9, a seal is ensured via an annular contact surface.
• the sealing body 9 raises against the spring force of the spring 4 from the valve seat 5 and the valve opens.
• a connection of a formed in the bore 2 valve chamber 13 with a low pressure region 16 is produced via a radial bore 15 in the valve housing 1.
• the specification of the limit pressure is effected by adjusting the spring force of the spring 4. For this purpose, the axial position of a received in the bore 2 spring plate 6, on which the spring 4 is supported, adjusted, so that the spring chamber 14 undergoes an enlargement or reduction.
• the pressure regulating valve shown in the figure adjusting means 7 which comprise a threaded spindle 17 which passes through the spring plate 6.
• the spring plate 6 is provided with a counter equal thread and thus serves at the same time as a spindle nut 18, which experiences an axial adjustment upon rotation of the threaded spindle 17.
• the rotation of the threaded spindle 17 can be effected via different drives or actuators (not shown), which are well known.
• the invention is not limited to the illustrated pressure control valve, but also includes modifications, in particular the specific embodiment of
• any other spring element can be used, which acts on the valve closing element in the direction of the valve seat with a pressure force.

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Fuel-Injection Apparatus (AREA)

Priority Applications (2)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48914318

Family Applications (1)

Country Status (4)

Families Citing this family (2)

Citations (5)

Family Cites Families (4)

• 2012
  • 2012-09-17 DE DE201210216534 patent/DE102012216534A1/de not_active Withdrawn
• 2013
  • 2013-08-02 WO PCT/EP2013/066315 patent/WO2014040801A1/fr not_active Ceased
  • 2013-08-02 CN CN201380059913.4A patent/CN104781545A/zh active Pending
  • 2013-08-02 EP EP13744581.3A patent/EP2895732A1/fr not_active Withdrawn

Patent Citations (5)

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