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WO2002046581A1 - Moteur a combustion rotatif - Google Patents

Moteur a combustion rotatif Download PDF

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Publication number
WO2002046581A1
WO2002046581A1 PCT/IT2001/000089 IT0100089W WO0246581A1 WO 2002046581 A1 WO2002046581 A1 WO 2002046581A1 IT 0100089 W IT0100089 W IT 0100089W WO 0246581 A1 WO0246581 A1 WO 0246581A1
Authority
WO
WIPO (PCT)
Prior art keywords
volume
rotor
motor
revolution
vane
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.)
Ceased
Application number
PCT/IT2001/000089
Other languages
English (en)
Inventor
Nino Aldo Campanini
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of WO2002046581A1 publication Critical patent/WO2002046581A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C1/00—Rotary-piston machines or engines
    • F01C1/30—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
    • F01C1/40—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member
    • F01C1/46—Rotary-piston machines or engines having the characteristics covered by two or more groups F01C1/02, F01C1/08, F01C1/22, F01C1/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F01C1/08 or F01C1/22 and having a hinged member with vanes hinged to the outer member
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
    • F01C11/00—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type
    • F01C11/002—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of similar working principle
    • F01C11/004—Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type of similar working principle and of complementary function, e.g. internal combustion engine with supercharger
    • 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
    • F02B53/00—Internal-combustion aspects of rotary-piston or oscillating-piston engines

Definitions

  • thermodinamic cycle with four transformations (phases or strokes):
  • the Otto and Diesel cycles are the most employed in reciprocating engines: the Otto cycle is employed also in Wankel rotary engine.
  • a basic mechanism for carrying out mechanical power from four- phase thermodinamic cycle in reciprocating motors is a linear cylindrical chamber with variable volume (the cylinder), where a piston is propelled by the expansion of the fluid during the power phase :the linear motion is transformed in rotation by means of crankshaft and connecting rods. Because each phase is realized in one linear stroke of the piston(up and down) corresponding to an half revolution of the shaft, a complete four- phase cycle is accomplished in two revolutions.
  • the major drawbacks in the four-phase reciprocating motors are: -uncompleted expansion of the fluid, because the largest expansion volume is equal to the intaked volume.
  • the Wankel is an Otto cycle motor, with the handicap already mentioned about the expansion (power) phase; -very small crank in the torque transmitted by the eccentric shaft to the rolling one: so it is necessary to generate one important mechanical force to achieve the desired value of the torque;
  • the invention permits the realization of a complete four- phase cycle in one revolution, by means of a very simple mechanical structure.
  • the basic mechanism is made up of one air compressor and one internal combustion motor( both rotary and equipped with vanes), strictly integrated so that they have the same statoric frame and the same rotor.
  • the schematic drawings that give an illustration of the mechanical structure are:
  • Fig-1 is a front-view
  • Fig.2 is a cross-section of the common stator: on the superior side is placed a pair of vanes (linked to the stator) switchable between two positions - “open “ and “closed " - but normally "closed”.
  • Fig.3 is a front-view
  • Fig.4 is a cross-section, of the common rotor, wich has a pair of fixed vanes.
  • Fig.5 is a perspective-view of stator and rotor assembled.
  • the parts pointed out are: 1 -switchable vanes for motor and compressor; 2-side-wall of cilindrical annular chamber of the motor; 3-separating wall between motor and compressor; 4-cross-section of cylindrical annular chamber of the motor; 5-cross-section of cylindrical annular chamber of the compressor; 6-pair of vanes fixed to the rotor; 7-slot for housing the separating wall between motor and compressor; 8-disk of the rotor; 9-shaft of the system; 10-rotoric surface of annular chambers.
  • Chamber 1 is delimited by the statoric vane in closed position, and the rotoric vane; Chamber 2 is delimited by the rotoric vane, and the statoric vane in closed position.
  • the motor is completed by the addition of these devices ( parts):
  • each chamber is always assigned to the same phase: the four phases are simultaneously in evolution in the system : a settled volume of fluid evolves along the phases passing from one chamber to the successive one: at the end of each revolution, one settled intaked volume completes its cycle.
  • the sequence of "operating state for each device in the motor” is : angle of switching valve of injector spark exhaust rotoric statoric immission plug port awe vane air compress.
  • A5 rotary vane passing through rotary vane passing through The sequence of "operating state of devices of the compressor” is: angle of switching intake valve for emission rotary vane statoric vane port air compressed
  • the volumetric efficiency of this motor is mainly determined by the loss of fluid leaving the system.
  • the intermediate path is made up of a series of thin annular labyrints with decreasing diameters.who has the effect of lengthening the path and dropping the fluid pressure.
  • the leaks are forced to exit through gap-rings around the shaft, where the opening is minimal, and the speed is also minimal after the drop of pressure caused by the labyrinths. Filling the path with lube oil, the speed of the leaks is further decreased because of its specific weight and viscosity: finally.the loss of fluid is small.
  • Leaks between two complementary chambers are cut off by compression rings around the vanes , similar to that of pistons.
  • thermodinamic efficiency because the expansion (power) phase utilizes all the pression and power available in the fluid.
  • the expansion volume is nearly two-fold the volume of intaked air.
  • the illustrated idea permits the realisation of more comlete cycles in the same revolution.
  • By increasing the rotation diameter, and the length of the related circumference it is possible to use three (for example) equal arcs in order to obtain complete cycles under different patterns.
  • the first pattern consists in distributing three equidistant boxes for vanes (and complementary devices), along the stator; the rotor has only one fixed vane.This system generates three complete and consecutive cycles in one revolution.
  • the second pattern consists in distributing three equidistant boxes for vanes, along the stator: the rotor has three equidistant fixed vanes. This system generates three complete and contemporaneous cycles in one third of revolution, or nine cycles in one revolution.
  • the third pattern consists in a stator with one box for vanes, but the rotor has three equidistant vanes.
  • This system generates three complete and consecutive cycles in one revolution (similar to the Wankel engine).
  • Another way to obtain more powered motors consists in the assembling of more basic units on the same shaft, with their rotors mounted at different angles from one another.
  • Fig.1 Main components of stator.front view.
  • Fig.9-Cross-section AA of the motor side of the single box are illustrated the position of statoric vane.the exhaust port.the position of the valve for immition of compressed air.the positions of injector and spark plug.
  • Fig.10-Cross section BB of the compressor side of the single box are illustrated the position of statoric vane.the position of the valve for the emission of compressed air.the intake port.
  • Fig.11 Cross-section of the system, referred to the motor side. In this drawing is illustrated the path of the leaks, with labyrints: it is also visible a zoom of one of the junctions between rotor and stator, with the incapsuleted round spring washers.
  • Fig.12- Pressure-Volume diagram of the fluid in a complete cycle Lenoir- Cler each of the four portion of the diagram is equivalent to one phase of the cycle. In particular:
  • the segment AB is equivalent to the intake (at constant pressure):-the line BC is equivalent to the compression (at variable pressure and volume): - the segment Ca is equivalent to the emission (at constant pressure) of compressed air and contemporary immission in the tank interfacing the motor: -the segment aC is equivalent to the tacking (at constant pressure) of compressed air from the interfacing tank, and contemporary immission in the motor: -the segment CE is equivalent to the explosion (at constant volume): ⁇ the line ED is equivalent to the combustion and expansion (at pressure and volume variable):-the segment DA is equivalent to the exhaust (at constant pressure).
  • the applicability of this invention is very large, especially in small powered basic unit (a complete cycle in one revolution). It is easy to couple these engines with other portable rotating machines for many various uses ; for example, motor compressors, motorpumps and motor generators of electricity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)
  • Rotary Pumps (AREA)
  • Insulation, Fastening Of Motor, Generator Windings (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)

Abstract

L'invention concerne un moteur à combustion rotatif possédant un cycle complet en quatre phases en une révolution et présentant une structure mécanique très simple. Ce système présente quatre chambres cylindriques annulaires dont le volume est variable en fonction de la rotation du rotor. Ces quatre chambres sont obtenues par intégration totale d'un compresseur et d'un moteur rotatifs et comportant des aubes; une cloison de séparation sépare la partie moteur de la partie compresseur. Chacune de ces deux parties est encore divisée en deux chambres possédant un volume variable, au moyen d'une aube commutable de type stator (normalement fermée) et une d'une aube fixe de type rotor. La même phase est continuellement affectée à chaque chambre; les quatre phases évoluent simultanément dans le système; un volume déterminé de liquide se déplace au cours de ces phases et passe d'une chambre à la chambre suivante; à la fin de chaque révolution, un volume déterminé termine son cycle. Si le volume de la chambre d'expansion du moteur est égal au volume de la chambre d'admission du compresseur, le système génère des cycles Otto, si ce premier volume est plus important, les cycles générés sont du type Lenoir et l'utilisation de puissance du système est meilleure. Il est possible de réaliser davantage de cycles complets en une révolution.
PCT/IT2001/000089 2000-12-04 2001-02-26 Moteur a combustion rotatif Ceased WO2002046581A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI2000A002610 2000-12-04
ITMI20002610 IT1319503B1 (it) 2000-12-04 2000-12-04 Motore endotermico rotativo

Publications (1)

Publication Number Publication Date
WO2002046581A1 true WO2002046581A1 (fr) 2002-06-13

Family

ID=11446166

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2001/000089 Ceased WO2002046581A1 (fr) 2000-12-04 2001-02-26 Moteur a combustion rotatif

Country Status (2)

Country Link
IT (1) IT1319503B1 (fr)
WO (1) WO2002046581A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7556015B2 (en) 2004-05-20 2009-07-07 Staffend Gilbert S Rotary device for use in an engine
US7650754B2 (en) 2004-05-20 2010-01-26 Gilbert Staffend Transmission between rotary devices

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE354161A (fr) *
US4671231A (en) * 1983-08-09 1987-06-09 Hu Eugene S Unidirectional rotary piston internal combustion engine
DE4215618A1 (de) * 1992-05-12 1993-11-18 Bauer Gustav Viktor Heißgaskrafttriebwerk mit geschlossenem Kreislaufprinzip

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE354161A (fr) *
US4671231A (en) * 1983-08-09 1987-06-09 Hu Eugene S Unidirectional rotary piston internal combustion engine
DE4215618A1 (de) * 1992-05-12 1993-11-18 Bauer Gustav Viktor Heißgaskrafttriebwerk mit geschlossenem Kreislaufprinzip

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7556015B2 (en) 2004-05-20 2009-07-07 Staffend Gilbert S Rotary device for use in an engine
US7650754B2 (en) 2004-05-20 2010-01-26 Gilbert Staffend Transmission between rotary devices

Also Published As

Publication number Publication date
ITMI20002610A1 (it) 2002-06-04
IT1319503B1 (it) 2003-10-20

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