FR2489430A1 - Piston stroke variation crankshaft - has two connecting rods and crankshafts with output gears and spacing adjusted by threaded crank support rod - Google Patents

Piston stroke variation crankshaft - has two connecting rods and crankshafts with output gears and spacing adjusted by threaded crank support rod Download PDF

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Publication number
FR2489430A1
FR2489430A1 FR8018964A FR8018964A FR2489430A1 FR 2489430 A1 FR2489430 A1 FR 2489430A1 FR 8018964 A FR8018964 A FR 8018964A FR 8018964 A FR8018964 A FR 8018964A FR 2489430 A1 FR2489430 A1 FR 2489430A1
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France
Prior art keywords
crankshafts
connecting rods
piston
crankshaft
support 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.)
Withdrawn
Application number
FR8018964A
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French (fr)
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GOUVENAUX ANDRE
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GOUVENAUX ANDRE
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Filing date
Publication date
Application filed by GOUVENAUX ANDRE filed Critical GOUVENAUX ANDRE
Priority to FR8018964A priority Critical patent/FR2489430A1/en
Publication of FR2489430A1 publication Critical patent/FR2489430A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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 and not specific to preceding groups
    • F01B9/02—Reciprocating-piston machines or engines characterised by connections between pistons and main shafts and not specific to preceding groups with crankshaft
    • 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

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transmission Devices (AREA)

Abstract

The transmission varies progressively, when desired, the length of stroke of a piston, of an engine or pump. Each piston has two connecting rods and two crankshafts, disposed symmmetrically. The two crankshafts can move apart or together to modify the angle of the connecting rods to the cylinder. The stroke alteration takes place without interrupting engine or pump working. This allows, with constant angular speed, a higher linear piston speed to be obtained during firing and expansion than during the compression stroke. A screw adjusts the crankshaft spacing.

Description

GOUVENAUX ANDRE RENE
VARIATEUR DE COURSE.GOUVENAUX ANDRE RENE
RACE VARIATOR.

DESCRIPTION
La présente invention concerne les moteurs de véhicules outomobiles
et de mochines qui peuvent être sollicités por des efforts d'intensité va rioble, ainsi que les systèmes de pompoge à débit voriable.DESCRIPTION
The present invention relates to motor vehicle engines
and mochines which can be used for efforts of variable intensity, as well as pumping systems with voriable flow.

Dans les dispositifs connus recherchont la variation d'effet ou de puissance on trouve des systèmes ò éléments débroyobles qui posent
des problèmes de remise en route et de synchronisotion des éléments débroyés. Un outre système utilise plusieurs cylindres non débroyobles
dont on neutralise l'effet d'une partie d'entre eux, ce qui comporte
comme inconvénient que les éléments neutrolisés continuent d'absorber
de l'énergie por frottement même @@vide. In known devices seeking variation in effect or power, there are systems with removable elements which pose
problems of restarting and synchronization of the shredded elements. A further system uses several non-shredderable cylinders
which we neutralize the effect of a part of them, which involves
as a disadvantage that the neutralized elements continue to absorb
energy for friction even @@ empty.

La présente invention permet d'économiser l'énergie por ses parti
culorités énumérées ci~dessous:
~Le fait de rendre possible la variation de l'intensité du couple
sons modifier ni le dosoge du mélonge oir~carburant ni la vitesse ongulaire, ce qui permet une utilisation plus étendue du régime optimum.The present invention saves energy for its parties.
highlights listed below:
~ Making it possible to vary the intensity of the torque
sounds modify neither the dosoge of the mixture oir ~ fuel nor the nail speed, which allows a more extensive use of the optimum speed.

~Le fait de pouvoir utiliser une cylindrée réduite quand l'effort de
sollicitation est nul ou réduit comme par exemple la circulation outomo bile en agglomérntionJou la circulation de véhicules tracteurs ò vide.~ Being able to use a reduced displacement when the effort of
solicitation is zero or reduced, for example outomo bile traffic in built-up areas or the circulation of empty towing vehicles.

~Le fait que lo@résultonte des efforts des bielles sur le piston
soit dons l'axe du cylindre supprime le frottement dû o- l@effort laté rol qui se pro duit dans le cas troditionnel d'une bielle unique, d'où goin d'énergie et usure moindre du piston et du cylindre.~ The fact that lo @ results from the efforts of the connecting rods on the piston
either the axis of the cylinder eliminates the friction due o- l @ lateral force rol which occurs in the troditionnel case of a single connecting rod, hence less energy and less wear of the piston and the cylinder.

Le fait que lo descente du piston est plus rapide que sa remon tée , selon le sens de rotation choisi, permet de réduire lo durée des crêtes de température et de pression, réduisant ainsi les dé
perdition s de chaleur et de pression dans le ou les cylindres.( (voir planche 2)
Le système comporte un ou plusieurs cylindres .1., et dans choque cylindre un piston.2.coulissant selon l'axe de symétrie X@X. Chaque piston est relié par deux bielles .3. a' deux vilebrequins.4.symériques dont les axes sont toujours situés dans un seul et m;me plan perpendiculaire à l'axe. X'X. Les deux ensembles bielle~vilebrequin sont disposés symétriquement par rapport à l'axe X'X. (planche n, 1 ).Un dispositif d'entretoise .5. supporte les poliers des deux vilebrequins .4. et permet de faire vorier progressivement, à vitesse et amplitude voulues, la distonce entre les deux axes respectifs des deux vilebrequins.The fact that the descent of the piston is faster than its ascent, depending on the direction of rotation chosen, makes it possible to reduce the duration of the temperature and pressure peaks, thereby reducing the
loss of heat and pressure in the cylinder (s) ((see Plate 2)
The system comprises one or more cylinders .1., And in each cylinder a piston.2. Sliding along the axis of symmetry X @ X. Each piston is connected by two connecting rods. 3. has two crankshafts. 4. symmetrical whose axes are always located in one and the same plane perpendicular to the axis. X'X. The two connecting rod ~ crankshaft assemblies are arranged symmetrically with respect to the axis X'X. (plate n, 1) .A spacer device .5. supports the poliers of the two crankshafts. 4. and allows to progressively vororate, at the desired speed and amplitude, the distortion between the two respective axes of the two crankshafts.

Des bielies. suports ~6~,articulées en Y et Y' sur le corps du cylindre et en Z et Z' sur les axes des vilebrequins, assurent le support des paliers des vilebrequins. Le choix de la longueur des bille~supports~6~ et de lo hauteur des articulations.Y-etY@pe rmet,soit de rendre variable, soit de
maintenir constant le volume de la chambre d'explosion au cours dés vari. Bielies. ~ 6 ~ suports, articulated in Y and Y 'on the cylinder body and in Z and Z' on the axes of the crankshafts, provide support for the bearings of the crankshafts. The choice of the length of the balls ~ supports ~ 6 ~ and the height of the joints. Y-etY@pe allows, either to make variable,
keep the volume of the explosion chamber constant during the vari.

ations de la cylindrée.La longueur de course du piston eit minimum(planche.2.) quand les vilebrequins sont rapprochés au maximum. Elle augmente progres- vivement au fur et à me sure que s'agrandit le distance Z~Z' entre les deux vilebrequins et peut êtrc maintenue à toute valeur intermé diaire désirée Un système d'engrenages7 et 8 mobiles assure la par faite symétrie des mouvements des deux bielles et de s deux vi~ lebrequins, ainsi que le raccordement du système à un orbre de transmis sion par l'intermédiaire d'un joint homocinétique
L' invention peut etre utilisée dans les mateurs et les pompes ò piston, ainsi que dans les dispositifs de transformation du mouve - ment alternatif en mouvement rotatif et vice versa The displacement length of the piston is minimum (plate 2.) when the crankshafts are brought as close together as possible. It increases progressively as the distance Z ~ Z 'between the two crankshafts increases and can be maintained at any desired intermediate value. A system of movable gears 7 and 8 ensures the symmetry of the movements two connecting rods and two vi ~ lebrequins, as well as the connection of the system to a transmission shaft sion via a constant velocity joint
The invention can be used in dies and piston pumps, as well as in devices for transforming reciprocating movement into rotary movement and vice versa.

Claims (1)

REVENDICATIONS Dispositif permettant de faire varier progressivement et au mo ment voulu la longueur de course des pistons d @un moteur ou d'une pompe. Il est coroctérisé par le fait qu'il comporte pour chaque piston deux bielles et deux vilebrequins, respectivement disposés d'une façon symétrique,et le fait que les deux vilebrequins peuvent s'écarter ou se rapprocher l'un de l'outre pour modifier l'angle moyen d'incidence des bielles sur l'axe du cylindre. Les variations de lo longueur de course des pistons peuvent avoir lieu sans interrompre le fonction n ement du moteur ou de la pompe. Ce dispositif permet également, et à vitesse onguloire constante, d'obtenir une vitesse linéaire du piston plus élevée pendont la phose d'explosion et détente, que pendant la phose de compression,dans le cas d'un moteur.  Device allowing the stroke length of the pistons of a motor or a pump to be varied progressively and at the desired moment. It is corocterized by the fact that it comprises for each piston two connecting rods and two crankshafts, respectively arranged in a symmetrical manner, and the fact that the two crankshafts can move apart or come closer to one another to modify the average angle of incidence of the connecting rods on the axis of the cylinder. Variations in the length of stroke of the pistons can take place without interrupting the operation of the motor or the pump. This device also makes it possible, and at constant ungulary speed, to obtain a higher linear speed of the piston during the explosion and detent phose, than during the compression phose, in the case of an engine.
FR8018964A 1980-09-02 1980-09-02 Piston stroke variation crankshaft - has two connecting rods and crankshafts with output gears and spacing adjusted by threaded crank support rod Withdrawn FR2489430A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8018964A FR2489430A1 (en) 1980-09-02 1980-09-02 Piston stroke variation crankshaft - has two connecting rods and crankshafts with output gears and spacing adjusted by threaded crank support rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8018964A FR2489430A1 (en) 1980-09-02 1980-09-02 Piston stroke variation crankshaft - has two connecting rods and crankshafts with output gears and spacing adjusted by threaded crank support rod

Publications (1)

Publication Number Publication Date
FR2489430A1 true FR2489430A1 (en) 1982-03-05

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FR8018964A Withdrawn FR2489430A1 (en) 1980-09-02 1980-09-02 Piston stroke variation crankshaft - has two connecting rods and crankshafts with output gears and spacing adjusted by threaded crank support rod

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305504A1 (en) * 1987-03-18 1989-03-08 Marius Angelo Paul High pressure reciprocator components.
WO2003093667A1 (en) * 2000-11-15 2003-11-13 Kari Ritavesi Combustion engine design

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780404A (en) * 1953-07-21 1957-02-05 Gen Electric Fluid compressor
FR1388925A (en) * 1963-12-31 1965-02-12 S N Marep Method and device for transforming a continuous circular motion into an alternating rectilinear motion of adjustable amplitude
FR1438210A (en) * 1964-06-20 1966-05-13 Separation Sa Franc Pour La Control device applicable in particular to pumps or compressors with adjustable flow rate or displacement
FR2431607A1 (en) * 1978-07-20 1980-02-15 Brondet Henri IC engine with two parallel crankshafts - has length of connecting rod designed to increase duration of working stroke

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780404A (en) * 1953-07-21 1957-02-05 Gen Electric Fluid compressor
FR1388925A (en) * 1963-12-31 1965-02-12 S N Marep Method and device for transforming a continuous circular motion into an alternating rectilinear motion of adjustable amplitude
FR1438210A (en) * 1964-06-20 1966-05-13 Separation Sa Franc Pour La Control device applicable in particular to pumps or compressors with adjustable flow rate or displacement
FR2431607A1 (en) * 1978-07-20 1980-02-15 Brondet Henri IC engine with two parallel crankshafts - has length of connecting rod designed to increase duration of working stroke

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0305504A1 (en) * 1987-03-18 1989-03-08 Marius Angelo Paul High pressure reciprocator components.
EP0305504A4 (en) * 1987-03-18 1989-06-26 Marius Angelo Paul High pressure reciprocator components.
WO2003093667A1 (en) * 2000-11-15 2003-11-13 Kari Ritavesi Combustion engine design

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