EP0028197B1 - Hydraulic rotary device - Google Patents
Hydraulic rotary device Download PDFInfo
- Publication number
- EP0028197B1 EP0028197B1 EP80401537A EP80401537A EP0028197B1 EP 0028197 B1 EP0028197 B1 EP 0028197B1 EP 80401537 A EP80401537 A EP 80401537A EP 80401537 A EP80401537 A EP 80401537A EP 0028197 B1 EP0028197 B1 EP 0028197B1
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- EP
- European Patent Office
- Prior art keywords
- stator
- vanes
- rotor
- recesses
- bottom surfaces
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C2/3448—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 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 groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member with axially movable vanes
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- 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
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/08—Rotary pistons
- F01C21/0809—Construction of vanes or vane holders
- F01C21/0818—Vane tracking; control therefor
Definitions
- the present invention relates to a rotary hydraulic device applicable mainly as a brake or retarder but capable of also operating as an engine and as a pump.
- Rotary electro-hydraulic brakes are known in particular constituted by a positive-displacement pump with radial vanes, entirely or partially filled with a fluid, preferably incompressible, the vanes integral with the rotary element or brake rotor being capable of sliding radially in housings. of the rotor, an eccentric cylindrical bore being provided between the rotor stator.
- stator can be central and the peripheral rotor and, in another case, the reverse arrangement can be adopted: central rotor and peripheral stator.
- an electromagnetic brake control element acts on the radial sliding of the pallets to obtain a partitioning in chambers of different volumes from the eccentric cylindrical bore and a more or less significant rolling of the fluid between pallets and stator, by passage forced volumes of fluid from one room to another.
- the centrifugal force has a non negligible action on the pallets, action which can go as far as an impossibility of operation and, according to the respective arrangement of the stator and the rotor and according to the location of the control element, the action of the centrifugal force on the pallets is exerted either in the direction of the controlled sliding or in the opposite direction.
- US Pat. No. 2,581,160 discloses an axial sliding vane displacement pump in which cams are provided for pulling the vane in a direction opposite to the action of springs tending to apply the vane against a flat stator wall .
- This action of removing the pallets caused by the cams allows said pallets to pass in front of a static separator offering a contact plane offset from the above-mentioned plane in order to allow, on either side of this separator, a fluid inlet and a fluid outlet.
- Each shuttle in two parts internally comprises an elastic means working for the extension or magnetic attraction means can be provided on the parallel ramps.
- the present invention relates to a hydraulic device in which hydraulic pressures are balanced.
- the present invention relates more particularly to a rotary hydraulic device of the positive displacement pump type with axially sliding vanes in housings of the rotor and means of axial action on the vanes, characterized in that it comprises two sets of vanes facing each other and two continuous surfaces of stator background symmetrical to each other with respect to a plane of symmetry and defining between them a circularly variable axial deviation, said sliding pallets of a set of pallets coming to bear in a constant and total manner on one of said continuous bottom surfaces, each bottom surface being unique for a set of pallets considered and deformed in construction to present recesses suitable for the operation of the device, said recesses being symmetrically opposite and the means of axial action on the pallets being constituted by electromagnetic means arranged behind the continuous surfaces of the stator bottom and in that, d In certain conditions and so that the rotor can rotate freely, means are provided for retaining the pallets in their housings.
- An electromagnetic control means allows the pallets to be pressed against the continuous surface of the stator bottom, said control means being arranged behind said surface in a yoke element made of a magnetizable material included in a non-magnetic cage of the stator.
- the pallets sliding, axially sliding are placed in pairs in rotor housings; on either side of a median stator part, the recesses being opposite back to back on either side of said median stator part and produced on this part, the pallets approaching one another to be applied to continuous bottom surfaces, with recesses in this part.
- a central stator piece with bottom surfaces provided on either side of an axis of symmetry, is integral with a fixed shaft portion, the rotor being mounted in the form of a cage around of the stator.
- the recesses can be of different displacements with a feeding by pair of opposite recesses.
- the device according to the invention can be applied as a brake or retarder the intermediate space between rotor and stator being filled with a preferably incompressible fluid;
- a rotary electrohydraulic device of the positive displacement pump type with sliding vanes comprises a rotor (1) and a stator (2) and housings or cavities (4) of the rotor accommodate pallets (5). .
- the pallets are located in a radial position relative to the X-X axis and can move in the axial direction along the cavities.
- the stator (2) is characterized in that it comprises two tracks or bottoms (6) symmetrical to each other with respect to a plane of symmetry Y-Y and with variable axial deviation.
- This stator contains, behind the continuous surface of the bottoms, one or more coils (7) capable of creating a magnetic field.
- the space existing between rotor and stator is filled with a preferably incompressible fluid such as oil.
- the vanes can, under certain conditions of use, be retained in their cavity by a permanent magnet or by an attraction coil.
- the braking operation is done by calling the paddles during the creation of a magnetic field using the coils.
- the pallets come to bear on the surface by creating chambers of different volumes in the intermediate space between rotor and stator.
- the fluid enclosed in said chambers causes a torque perpendicular to the pallet, which results in a braking torque on the shaft.
- the electrohydraulic rotary device according to the invention can also operate in pump version and in motor version and one or more inlet pipes (11) and outlet 12 for fluid can be provided for this purpose.
- the surface of the stator can be deformed to present rectilinear zones suitable for the operation of the device.
- auxiliary permanent magnets 13 can be provided behind this surface.
- each coil 7 or the coil assembly 7-auxiliary permanent magnets 13 are replaced by an appropriate permanent magnet.
- the pallet is guided by a guide 15 formed in the rotor and the friction is reported at the level of this guide (FIG. 4).
- the sliding vanes 5 with axial sliding are considered in pairs, relative to the plane of symmetry YY, in housings 4A of the rotor.
- the pallets of each pair are placed in alignment with each other in the same housing 4A.
- the pallets move away from each other to be applied to the continuous bottom surface 6 of two stator elements 2D and 2E arranged on either side of the rotor 1.
- the application effect is, in accordance with the invention, provided by electromagnetic control means (coil 7).
- the application means are permanent application means: permanent magnet 13 for each pallet and / or spring 16 common to the two pallets 5 of a pair of pallets and placed between them.
- the coils 7 are enclosed in a cylinder head element, made of a magnetizable material 2A which element is itself included and bolted in one or the other of the two 2D elements , 2E of the cage-shaped stator, made of a non-magnetic material.
- the cage also closes around the rotor in a non-magnetic material while leaving a sealed passage for the rotating shaft 3.
- the axially sliding pallets 5 are made of a magnetizable material and so that the lines of force of the magnetic field created by the coils 7 can be closed by said pallets 5 a crown made of a non-magnetic material 9 is placed in the cylinder head element 2A in front the coils 7.
- the cylinder head element 2A and the crown 9 allow the continuous surface of the bottom 6 of the stator to be produced.
- the application means can also be hydraulic means.
- the continuous bottom surfaces 6 of the stator elements may have, in a variable number, deformations with rectilinear zones suitable for operation or recesses 6A. This number is identical on each stator element.
- the recesses are opposite face to face, with a common or simultaneous feeding 11.
- the recesses 6A can be of different displacements with an independent supply by pair of opposite recesses.
- the pallets 5 are located in the housings 4A of the rotor closed peripherally by a hoop 17 without friction on the fixed elements, other than the stator elements 2D and 2E.
- the hoop 17 overflows on either side of the rotor 1 so as to take account of the recesses 6A of the stator elements 2D and 2E whose sliding vanes follow the surfaces.
- the hoop 17 finds a housing in a space 18 formed by the elements 2D and 2E and each of its peripheral edges comprises a seal 19 bearing against one of these elements.
- Another sealing device is provided between the rotor and the stator, on an outer periphery 20 and an inner periphery 21 of the stator.
- This sealing device provides excellent volumetric efficiency, even at low speed, and allows operation with any fluid, by isolating the bearing 22 from the rotor.
- the pallets 5 are in the form of a trapezoidal wedge, a trapezoidal edge of the pallets sliding on one of the continuous bottom surfaces of the stator elements (2D, 2E).
- housings 4A receiving the pallets 5 have a corresponding shape.
- a middle stator part 2G carries the continuous bottom surfaces 6 on either side of a plane of symmetry Y-Y.
- the axially sliding sliding pallets 5 are placed in pairs in housings 4B arranged in pairs in the rotor 1.
- the two housings of a pair of housings are aligned with each other, on both sides 'other of the middle stator part 2G therefore of the plane of symmetry YY.
- the housings 4B located on one side of the central stator part are closed peripherally by a hoop 17A and the housings 4B located on the other side of the central stator part are closed peripherally by another fretee 17B.
- Each hoop has a seal 19 bearing on the middle stator part 2G.
- the symmetry of the arrangement continues with two stator shells 2H and 2K closing on the middle stator part 2G and the rotor 1 with its housings 4B for the pallets 5 and the frets 17A and 17B closing the housings 4B.
- stator and rotor are provided at the end of the shaft.
- the rotor is made of at least two main parts 1A and 1B screwing on one another.
- An annular block 1C hollowed out of housings 4B connects the hoop 17A to the part 1A and an annular block 1D also hollowed out of housings 4B connects the hoop 17B to the part 1B.
- a middle stator piece 2G is also provided with bottom surfaces 6 on either side of an axis of symmetry YY, but this middle stator piece forms a body with a portion of 2L fixed shaft which can be hollow.
- the rotor is mounted in the form of a cage around the stator and comprises two central parts 1E and 1F on either side of the central stator part 2G in which the housings 4A of the lateral flanges 1 G and 1 H are formed and a single hoop forming spacer 17C.
- the two rotor blocks hollowed out from the housings 4A are separated by a stator part 2M comparable to the middle stator part 2G in FIG. 7 and showing continuous bottom surfaces with deformations or recesses 6.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
- Hydraulic Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Description
La présente invention a pour objet un dispositif hydraulique rotatif applicable principalement comme frein ou ralentisseur mais susceptible de fonctionner également en moteur et en pompe.The present invention relates to a rotary hydraulic device applicable mainly as a brake or retarder but capable of also operating as an engine and as a pump.
On connaît notamment les freins électro- hydrauliques rotatifs constitués par une pompe volumétrique à palettes radiales, entièrement ou partiellement remplie par un fluide, de préférence incompressible, les palettes solidaires de l'élément rotatif ou rotor du frein étant susceptibles de coulisser radialement dans des logements du rotor, un alésage cylindrique excentré étant prévu entre stator de rotor.Rotary electro-hydraulic brakes are known in particular constituted by a positive-displacement pump with radial vanes, entirely or partially filled with a fluid, preferably incompressible, the vanes integral with the rotary element or brake rotor being capable of sliding radially in housings. of the rotor, an eccentric cylindrical bore being provided between the rotor stator.
Dans un cas, le stator peut être central et le rotor périphérique et, dans un autre cas, la disposition inverse peut être adoptée: rotor central et stator périphérique.In one case, the stator can be central and the peripheral rotor and, in another case, the reverse arrangement can be adopted: central rotor and peripheral stator.
Dans les deux cas, un élément électromagnétique de commande du frein agit sur le coulissement radial des palettes pour obtenir un cloisonnement en chambres de volumes différents de l'alésage cylindrique excentré et un laminage plus ou moins important du fluide entre palettes et stator, par passage forcé des volumes de fluide d'une chambre à une autre.In both cases, an electromagnetic brake control element acts on the radial sliding of the pallets to obtain a partitioning in chambers of different volumes from the eccentric cylindrical bore and a more or less significant rolling of the fluid between pallets and stator, by passage forced volumes of fluid from one room to another.
La force centrifuge a une action non négligeable sur les palettes, action qui peut aller jusqu'à une impossibilité de fonctionnement et, suivant la disposition respective du stator et du rotor et suivant l'emplacement de l'élément de commande, l'action de la force centrifuge sur les palettes s'exerce soit dans le sens du coulissement commandé soit dans le sens opposé.The centrifugal force has a non negligible action on the pallets, action which can go as far as an impossibility of operation and, according to the respective arrangement of the stator and the rotor and according to the location of the control element, the action of the centrifugal force on the pallets is exerted either in the direction of the controlled sliding or in the opposite direction.
On connait déjà des dispositifs à palettes coulissant axialement de conception plus ou moins fiable.We already know axially sliding vane devices of more or less reliable design.
On connaît par le brevet US-A-2.581.160 une pompe volumèrique à palettes à coulissement axial dans laquelle des cames sont prévues pour tirer les palettes dans une direction opposée à l'action de ressorts tendant à appliquer les palettes contre une paroi plane statorique. Cette action de retrait des palettes provoquée par les cames permet le passage desdites palettes devant un séparateur statique offrant un plan de contact décalé par rapport au plan susnommé afin de permettre, de part et d'autre de ce séparateur, une entrée de fluide et une sortie de fluide.US Pat. No. 2,581,160 discloses an axial sliding vane displacement pump in which cams are provided for pulling the vane in a direction opposite to the action of springs tending to apply the vane against a flat stator wall . This action of removing the pallets caused by the cams allows said pallets to pass in front of a static separator offering a contact plane offset from the above-mentioned plane in order to allow, on either side of this separator, a fluid inlet and a fluid outlet.
Dans un autre dispositif comparable au précédent et décrit au brevet US-A-2.232.599 des palettes à coulissement axial et ressorts d'application évoluent dans un canal annulaire conique lequel s'interrompt selon un secteur circulaire en saillie, des orifices d'entrée et de sortie de fluide étant alors creusés dans ce secteur en saillie.In another device comparable to the previous one and described in patent US-A-2,232,599 of the axial sliding vanes and application springs evolve in a conical annular channel which is interrupted according to a projecting circular sector, inlet orifices and fluid outlet then being dug in this projecting sector.
Dans encore un autre dispositif décrit au brevet FR-1.542.623 à palettes à coulissement axial et ressort d'application, celle-ci évoluent dans au moins un canal p d'allure générale circulaire mais de largeur et de profondeur variables ce qui, en matière d'usinage, pos des problèmes importants de réalisation.In yet another device described in patent FR-1,542,623 with axial sliding vanes and application spring, the latter evolve in at least one channel p of generally circular appearance but of variable width and depth which, in machining material, pos important implementation problems.
On connaît enfin par le brevet US-A-3.942.484 un moteur à combustion interne dont les palettes axiales sont guidées entre deux pistes constituées par des courbes strictement parallèles donc à écart axial constant. Les palettes ou navettes coulissent dans un rotor annulaire présentant des bords périphériques ajustés de manière étanche dans des flasques latéraux statoriques d'où un fonctionnement délicat.Finally, from US-A-3,942,484, an internal combustion engine is known, the axial vanes of which are guided between two tracks formed by strictly parallel curves, therefore with constant axial deviation. The pallets or shuttles slide in an annular rotor having peripheral edges tightly fitted in lateral stator flanges, hence delicate operation.
Chaque navette en deux parties comprend intérieurement un moyen élastique travaillant à l'extension ou encore des moyens d'attraction magnétique peuvent être prévus sur les rampes parallèles.Each shuttle in two parts internally comprises an elastic means working for the extension or magnetic attraction means can be provided on the parallel ramps.
Le fonctionnement est d'autant plus délicat que le strict parallélisme des pistes entraîne un déséquilibre axial par flexion, tantôt dans un sens, tantôt de l'autre, du rotor placé entre les deux pistes. Les points de haute pression sont transférés d'un côté à l'autre du rotor produisant ainsi sa flexion et son déséquilibre axial (compression d'un côté du rotor, transfert et pression engendrée par l'explosion de l'autre côté du rotor), entre rotor et piste chaque fois qu'un point de haute pression s'établit d'un côté ou de l'autre du rotor).Operation is all the more delicate since the strict parallelism of the tracks results in an axial imbalance by bending, sometimes in one direction, sometimes in the other, of the rotor placed between the two tracks. The high pressure points are transferred from one side to the other of the rotor thus producing its bending and its axial imbalance (compression on one side of the rotor, transfer and pressure generated by the explosion on the other side of the rotor) , between rotor and track each time a point of high pressure is established on one side or the other of the rotor).
Il s'agit dans ce cas d'un seul et même moteur ex à combustion interne donc à volume de gaz compressible.In this case, it is a single ex engine with internal combustion, therefore with a compressible gas volume.
La présente invention vise un dispositif hydraulique dans lequel des pressions hydrauliques s'équilibrent.The present invention relates to a hydraulic device in which hydraulic pressures are balanced.
La présente invention vise plus particulièrement un dispositif hydraulique rotatif du type pompe volumétrique à palettes coulissantes axialement dans des logements du rotor et moyens d'action axiale sur les palettes, caractérisé en ce qu'il comprend deux jeux de palettes en vis-à-vis et deux surfaces continues de fond statorique symétriques l'une de l'autre par rapport à un plan de symétrie et définissant entre elle un écart axial variable circulairement, lesdites palettes coulissantes d'un jeu de palettes venant s'appuyer de manière constante et totale sur l'une desdites surfaces continues de fond, chaque surface de fond étant unique pour un jeu de palettes considéré et déformée de construction pour présenter des évidements appropriés au fonctionnement du dispositif, lesdits évidements étant opposés symétriquement et les moyens d'action axiale sur les palettes étant constitués par des moyens électromagnétiques disposés derrière les surfaces continues de fond statorique et en ce que, dans certaines conditions et afin que le rotor puisse tourner en toute liberté, des moyens sont prévus pour retenir les palettes dans leurs logements.The present invention relates more particularly to a rotary hydraulic device of the positive displacement pump type with axially sliding vanes in housings of the rotor and means of axial action on the vanes, characterized in that it comprises two sets of vanes facing each other and two continuous surfaces of stator background symmetrical to each other with respect to a plane of symmetry and defining between them a circularly variable axial deviation, said sliding pallets of a set of pallets coming to bear in a constant and total manner on one of said continuous bottom surfaces, each bottom surface being unique for a set of pallets considered and deformed in construction to present recesses suitable for the operation of the device, said recesses being symmetrically opposite and the means of axial action on the pallets being constituted by electromagnetic means arranged behind the continuous surfaces of the stator bottom and in that, d In certain conditions and so that the rotor can rotate freely, means are provided for retaining the pallets in their housings.
Un moyen de commande électromagnétique permet un appui des palettes contre la surface continue de fond statorique, ledit moyen de commande étant disposé derrière ladite surface dans un élément de culasse en un matiériau magnétisable compris dans une cage amagnétique du stator.An electromagnetic control means allows the pallets to be pressed against the continuous surface of the stator bottom, said control means being arranged behind said surface in a yoke element made of a magnetizable material included in a non-magnetic cage of the stator.
Suivant une forme de réalisation, les palettes coulissantes, à coulissement axial, sont placées par paires dans des logements rotoriques; de part et d'autre d'une pièce statorique médiane, les évidements étant opposés dos à dos de part et d'autre de ladite pièce statorique médiane et réalisés sur cette pièce, les palettes se rapprochant l'une de l'autre pour être appliqués sur les surfaces continues de fond, à évidements de cette pièce.According to one embodiment, the pallets sliding, axially sliding, are placed in pairs in rotor housings; on either side of a median stator part, the recesses being opposite back to back on either side of said median stator part and produced on this part, the pallets approaching one another to be applied to continuous bottom surfaces, with recesses in this part.
Suivant une autre forme de réalisaion, une pièce statorique médiane, avec des surfaces de fond prévues de part et d'autre d'un axe de symétrie, fait corps avec une portion d'arbre fixe, le rotor étant monté en forme de cage autour du stator.According to another embodiment, a central stator piece, with bottom surfaces provided on either side of an axis of symmetry, is integral with a fixed shaft portion, the rotor being mounted in the form of a cage around of the stator.
Suivant une autre forme de réalisation, des dispositions répétitives autour d'un même arbre (tournant ou fixe) sont adoptées, des pièces statoriques séparatrices, montrant des surfaces continues de fond à deformations ou évidements pouvant alors être prévues.According to another embodiment, repetitive arrangements around the same shaft (rotating or fixed) are adopted, separating stator parts, showing continuous bottom surfaces with deformations or recesses can then be provided.
Les évidements peuvent être de cylindrées différentes avec un alimentation par paire d'évidements opposés.The recesses can be of different displacements with a feeding by pair of opposite recesses.
Le dispositif selon l'invention peut être appliqué en frein ou ralentisseur l'espace intermédiaire entre rotor et stator étant rempli d'un fluide de préférence incompressible;The device according to the invention can be applied as a brake or retarder the intermediate space between rotor and stator being filled with a preferably incompressible fluid;
Il peut être également appliqué en pompe ou en moteur, des conduits d'arrivée et de sortie de fluide étant prévus à cet effet.It can also be applied as a pump or motor, fluid inlet and outlet conduits being provided for this purpose.
D'autres caractéristiques et avantages de la présente invention ressortiront de la description qui va suivre faitre en regard du dessin annexé sur lequel:
- la figure 1 est une vue en coupe d'une forme de réalisation d'un dispositif électrohydraulique conforme à l'invention, dans laquelle les palettes sont placées par paires dans des logements communs du rotor;
- la figure 2 est une vue en coupe suivant la ligne Y-Y de la figure 1
- la figure 3 est une vue de détail;
- la figure 4 est une vue de détail d'une variante;
- la figure 5 est une vue en perspective d'un élément de stator;
- la figure 6 est une vue en coupe d'une autre forme de réalisation d'un dispositif selon l'invention, dans laquelle les palettes sont placées par paires dans des logements en alignement de part et d'autre d'une pièce statorique médiane;
- la figure 7 est une vue en coupe partielle d'une autre forme de réalisation dans laquelle le rotor est en forme de cage; et
- la figure 8 est une vue en coupe partielle d'une disposition répétitive de dispositifs selon l'invention autour d'un même arbre.
- Figure 1 is a sectional view of an embodiment of an electrohydraulic device according to the invention, in which the vanes are placed in pairs in common housings of the rotor;
- Figure 2 is a sectional view along line YY of Figure 1
- Figure 3 is a detail view;
- Figure 4 is a detailed view of a variant;
- Figure 5 is a perspective view of a stator element;
- Figure 6 is a sectional view of another embodiment of a device according to the invention, in which the pallets are placed in pairs in housings in alignment on either side of a central stator piece;
- Figure 7 is a partial sectional view of another embodiment in which the rotor is cage-shaped; and
- Figure 8 is a partial sectional view of a repeating arrangement of devices according to the invention around the same tree.
Dans les formes de réalisation représentées, un dispositif électrohydraulique rotatif du type pompe volumétrique à palettes coulissantes selon l'invention comprend un rotor (1) et un stator (2) et des logements ou cavités (4) du rotor logent des palettes (5).In the embodiments shown, a rotary electrohydraulic device of the positive displacement pump type with sliding vanes according to the invention comprises a rotor (1) and a stator (2) and housings or cavities (4) of the rotor accommodate pallets (5). .
Les palettes sont situées dans une position radiale par rapport à l'axe X-X et peuvent se déplacer dans le sens axiale le long des cavités.The pallets are located in a radial position relative to the X-X axis and can move in the axial direction along the cavities.
Le stator (2) se caractérise par le fait qu'il comporte deux pistes ou fonds (6) symétriques l'un de l'autre par rapport à un plan de symétrie Y-Y et à écart axial variable.The stator (2) is characterized in that it comprises two tracks or bottoms (6) symmetrical to each other with respect to a plane of symmetry Y-Y and with variable axial deviation.
Ce stator renferme, derrière la surface continue des fonds, une ou plusieurs bobines (7) pouvant créer un champ magnétique.This stator contains, behind the continuous surface of the bottoms, one or more coils (7) capable of creating a magnetic field.
L'espace existant entre rotor et stator est rempli d'un fluide de préférence incompressible tel que l'huile.The space existing between rotor and stator is filled with a preferably incompressible fluid such as oil.
En absence de tout courant de commande dans les bobines (7) afin que les palettes restent à l'intérieur de leur cavité et que le rotor puisse tourner en toute liberté, les palettes peuvent, dans certaines conditions d'utilisation, être retenues dans leur cavité par un aimant permanent ou par une bobine d'attraction.In the absence of any control current in the coils (7) so that the vanes remain inside their cavity and that the rotor can rotate freely, the vanes can, under certain conditions of use, be retained in their cavity by a permanent magnet or by an attraction coil.
Considérant le dispositif selon l'invention dans sa version frein, l'opération de freinage se fait par appel des palettes lors de la création d'un champ magnétique à l'aide des bobines. Dans des conditions, les palettes viennent s'appuyer sur la surface en créant des chambres de volumes différents dans l'espace intermédiaire entre rotor et stator.Considering the device according to the invention in its brake version, the braking operation is done by calling the paddles during the creation of a magnetic field using the coils. Under conditions, the pallets come to bear on the surface by creating chambers of different volumes in the intermediate space between rotor and stator.
De ce fait, le fluide enfermé dans lesdites chambres provoque un couple perpendiculaire à la palette, ce qui se traduit par un couple de freinage sur l'arbre.Therefore, the fluid enclosed in said chambers causes a torque perpendicular to the pallet, which results in a braking torque on the shaft.
Le dispositif électrohydraulique rotatif selon l'invention peut également fonctionner en version pompe et en version moteur et un ou plusieurs conduits d'arrivée (11) et de sortie 12 de fluide peuvent être prévus à cet effet.The electrohydraulic rotary device according to the invention can also operate in pump version and in motor version and one or more inlet pipes (11) and
Dans ces versions la surface du stator peut être déformée pour présenter des zones rectilignes appropriées au fonctionnement du dispositif.In these versions the surface of the stator can be deformed to present rectilinear zones suitable for the operation of the device.
Dans ces versions également, pour aider à maintenir les palettes convenablement appliquées, à tout moment, contre le surface de fond du stator, des aimants permanents auxiliaires 13 peuvent être prévus derrière cette surface.Also in these versions, to help keep the paddles properly applied, at all times, against the bottom surface of the stator, auxiliary
Suivant une variante, chaque bobine 7 ou l'ensemble bobine 7-aimants permanents auxiliaires 13 sont remplacés par un aimant permanent approprié.According to a variant, each
Il est bien entendu que quelle que soit la version du dispositif selon l'invention, le loi de la courbe réalisant chaque fond 6 du stator peut être adaptée suivant les critères de réalisation et de fonctionnement recherchés.It is understood that whatever the version of the device according to the invention, the law of the curve producing each
Suivant une variante, la palette est guidée par un guidage 15 pratiqué dans le rotor et le frottement est rapporté au niveau de ce guidage (figure 4).According to a variant, the pallet is guided by a
Enfin, les palettes 5 sont traversées par des canaux 10 d'équilibrage hydraulique.Finally, the
Dans la forme de réalisation représentée aux figures 1 à 5, les palettes coulissantes 5 à coulissement axial, sont considérées par paires, par rapport au plan de symétrie Y-Y, dans des logements 4A du rotor. Les palettes de chaque paire sont placées dans l'alignement l'une de l'autre dans un même logement 4A. Les palettes s'écartent l'une de l'autre pour être appliquées sur la surface continue de fond 6 de deux éléments statoriques 2D et 2E disposés de part et d'autre du rotor 1.In the embodiment shown in FIGS. 1 to 5, the
L'effet d'application est, conformément à l'invention, fourni par des moyens de commande électromagnétiques (bobine 7). Dans un but de simplification, dans la forme de réalisation représentée, les moyens d'application sont des moyens d'application permanente: aimant permanent 13 pour chaque palette et/ou ressort 16 commun aux deux palettes 5 d'une paire de palettes et placé entre elles.The application effect is, in accordance with the invention, provided by electromagnetic control means (coil 7). For the purpose of simplification, in the embodiment shown, the application means are permanent application means:
Dans la figure de détail (3), on peut remarquer que les bobines 7 sont renfermées dans un élément formant culasse, en un matériau magnétisable 2A lequel élément est lui-même compris et boulonné dans l'un ou l'autre des deux éléments 2D, 2E du stator en forme de cage, en un matériau amagnétique. La cage se referme également autour du rotor en un matériau amagnétique tout en laissant un passage étanche pour l'arbre tournant 3.In the detail figure (3), it can be noted that the
Les palettes à coulissement axial 5 sont en un matériau magnétisable et pour que les lignes de force du champ magnétique créé par les bobines 7 puissent se refermer par lesdites palettes 5 une couronne en un matériau amagnétique 9 est disposée dans l'élément de culasse 2A devant les bobines 7.The
L'élément de culasse 2A et la couronne 9 permettent la réalisation de la surface continue du fond 6 du stator.The cylinder head element 2A and the crown 9 allow the continuous surface of the
Les moyens d'application peuvent également être des moyens hydrauliques.The application means can also be hydraulic means.
Les efforts résultant des poussées hydrauliques sont retenus statiquement par les deux éléments de stator 2D, 2E reliés entre eux par un carter annulaire 2F formant entretoise, et ne viennent en aucun cas charger les paliers du rotor.The forces resulting from the hydraulic thrusts are retained statically by the two
Les surfaces continues de fond 6 des éléments de stator peuvent présenter, en un nombre variable, des déformations à zones rectilignes appropriées au fonctionnement ou évidements 6A. Ce nombre est identique sur chaque élément de stator. Les évidements sont opposés face à face, avec une alimentation commune ou simultanée 11.The continuous bottom surfaces 6 of the stator elements may have, in a variable number, deformations with rectilinear zones suitable for operation or recesses 6A. This number is identical on each stator element. The recesses are opposite face to face, with a common or
Les évidements 6A peuvent être de cylindrées différentes avec une alimentation indépendante par paire d'évidements opposés. Les palettes 5 sont situées dans les logements 4A du rotor fermés périphériquement par une frette 17 sans frottement sur les éléments fixes, autres que les éléments de stator 2D et 2E.The
La frette 17 déborde de part de d'autre du rotor 1 de manière à tenir compte des évidements 6A des éléments de stator 2D et 2E dont les palettes coulissantes suivent les surfaces. La frette 17 trouve un logement dans un espace 18 ménagé par les éléments 2D et 2E et chacun de ses bords périphériques comporte un joint 19 portant contre l'un de ces éléments.The
Un autre dispositif d'étanchéité est prévu entre le rotor et le stator, sur une périphérie extérieure 20 et une périphérie intérieure 21 du stator. Ce dispositif d'étanchéité permet un excellent rendement volumétrique, même à basse vitesse, et autorise le fonctionnement avec un fluide quelconque, en isolant le palier 22 du rotor.Another sealing device is provided between the rotor and the stator, on an
Les palettes 5 sont en forme de coin trapézoïdal, une tranche trapézoïdale des palettes glissant sur l'une des surfaces continues de fond des éléments de stator (2D, 2E).The
Bien entendu, les logements 4A recevant les palettes 5 ont une forme correspondante.Of course, the
Dans la forme de réalisation représentée à la figure 6, une pièce statorique médiane 2G porte les surfaces continues de fond 6 de part et d'autre d'un plan de symétrie Y-Y.In the embodiment shown in Figure 6, a
Les palettes coulissantes à coulissement axial 5 sont placées par paires dans des logements 4B disposés par paires dans le rotor 1. Les deux logements d'une paire de logements se trouvent dans l'alignement l'un de l'autre, de part et d'autre de la pièce statorique médiane 2G donc du plan de symétrie Y-Y.The axially sliding sliding
Les logements 4B se trouvant d'un côté de la pièce statorique médiane sont fermés périphériquement par une frette 17A et les logements 4B se trouvant de l'autre côté de la pièce statorique médiane sont fermés périphériquement par une autre fretee 17B. Chaque frette comporte un joint 19 portant sur la pièce statorique médiane 2G.The
La symétrie de la disposition se poursuit par deux coquilles statoriques 2H et 2K se refermant sur la pièce statorique médiane 2G et le rotor 1 avec ses logements 4B pour les palettes 5 et les frettes 17A et 17B fermant les logements 4B.The symmetry of the arrangement continues with two
Dans cette forme de rélisation, stator et rotor sont prévus en bout d'arbre. A cet effet, pour permettre le montage, le rotor est réalisé en au moins deux parties principales 1A et 1 B se vissant l'une sur l'autre. Un bloc annulaire 1C creusé de logements 4B relie la frette 17A à la partie 1A et un bloc annulaire 1D creusé également de logements 4B relie la frette 17B à la partie 1B.In this form of embodiment, stator and rotor are provided at the end of the shaft. To this end, to allow mounting, the rotor is made of at least two
Dans la forme de réalisation représentée à la figure 7, une pièce statorique médiane 2G est également prévue avec des surfaces de fond 6 de part et d'autre d'un axe de symétrie Y-Y mais cette pièce statorique médiane fait corps avec une portion d'arbre fixe 2L qui peut être creuse. Le rotor est monté en forme de cage autour du stator et comprend deux parties centrales 1E et 1F de part et d'autre de la pièce statorique médiane 2G dans lesquelles sont pratiqués les logements 4A des flasques latéraux 1 G et 1 H et une seule frette formant entretoise 17C.In the embodiment shown in FIG. 7, a
Dans toutes les formes de réalisation, des dispositions répétitives autour d'un même arbre tournant (figures 1 à 5 et 6) ou autour d'un même arbre fixe (figure 7) peuvent être adoptées. C'est ainsi qu'une disposition à au moins deux rotors semblables, chacun, au rotor de la figure 1 est représentée à la figure 8.In all embodiments, repetitive arrangements around the same rotating shaft (Figures 1 to 5 and 6) or around the same fixed shaft (Figure 7) can be adopted. Thus, an arrangement with at least two rotors similar, each to the rotor of FIG. 1 is represented in FIG. 8.
Les deux blocs de rotor creusés des logements 4A sont séparés par un pièce statorique 2M comparable à la pièce statorique médiane 2G de la figure 7 et montrant des surfaces continues de fond à déformations ou évidements 6.The two rotor blocks hollowed out from the
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT80401537T ATE14606T1 (en) | 1979-10-30 | 1980-10-29 | HYDRAULIC ROTATING DEVICE. |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7926873A FR2468768A1 (en) | 1979-10-30 | 1979-10-30 | Rotary-piston electrohydraulic brake or motor - has sliding magnetic rotor blades bearing on deformable cycloidal stator surface |
FR7926873 | 1979-10-30 | ||
FR8001502 | 1980-01-24 | ||
FR8001502A FR2474606A2 (en) | 1980-01-24 | 1980-01-24 | Rotary-piston electrohydraulic brake or motor - has sliding magnetic rotor blades bearing on deformable cycloidal stator surface |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0028197A1 EP0028197A1 (en) | 1981-05-06 |
EP0028197B1 true EP0028197B1 (en) | 1985-07-31 |
Family
ID=26221412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80401537A Expired EP0028197B1 (en) | 1979-10-30 | 1980-10-29 | Hydraulic rotary device |
Country Status (7)
Country | Link |
---|---|
US (1) | US4492541A (en) |
EP (1) | EP0028197B1 (en) |
BR (1) | BR8006973A (en) |
DE (1) | DE3070927D1 (en) |
DK (1) | DK160720C (en) |
ES (1) | ES496323A0 (en) |
IE (1) | IE51772B1 (en) |
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FR2499166A1 (en) * | 1981-01-30 | 1982-08-06 | Sulzer Ag | ROTARY HYDRAULIC DEVICE |
US4681197A (en) * | 1984-09-19 | 1987-07-21 | Placid Industries, Inc. | Electromagnetic clutches and brakes |
FR2586779B1 (en) * | 1985-09-02 | 1987-12-18 | Sulzer Ag | HYDROMECHANICAL TORQUE TRANSMISSION DEVICE |
US4736962A (en) * | 1986-03-21 | 1988-04-12 | Motrenec Donald L | Steering stabilizer for vehicles |
CN1009024B (en) * | 1986-09-24 | 1990-08-01 | 郑悦 | Axial deflection pump or motor |
DE4304208C1 (en) * | 1993-02-12 | 1994-04-07 | Daimler Benz Ag | Vane cell pump - has blades consisting of carrier and blade section, carrier is guided by stationary parts during movement in radial direction |
US5429084A (en) * | 1994-02-25 | 1995-07-04 | Sky Technologies, Inc. | Axial vane rotary device and sealing system therefor |
US5509793A (en) * | 1994-02-25 | 1996-04-23 | Regi U.S., Inc. | Rotary device with slidable vane supports |
EP1088167B1 (en) * | 1998-06-19 | 2003-09-03 | Photosynthesis, (Jersey) Limited | Pump with a flexible impeller |
US6589033B1 (en) * | 2000-09-29 | 2003-07-08 | Phoenix Analysis And Design Technologies, Inc. | Unitary sliding vane compressor-expander and electrical generation system |
EP1721078A1 (en) * | 2004-01-09 | 2006-11-15 | Manfred Sommer | Rotary pump provided with an axially movable blade |
US7556015B2 (en) * | 2004-05-20 | 2009-07-07 | Staffend Gilbert S | Rotary device for use in an engine |
US8647088B2 (en) * | 2005-03-09 | 2014-02-11 | Merton W. Pekrul | Rotary engine valving apparatus and method of operation therefor |
US8955491B2 (en) * | 2005-03-09 | 2015-02-17 | Merton W. Pekrul | Rotary engine vane head method and apparatus |
US8517705B2 (en) * | 2005-03-09 | 2013-08-27 | Merton W. Pekrul | Rotary engine vane apparatus and method of operation therefor |
US8360760B2 (en) | 2005-03-09 | 2013-01-29 | Pekrul Merton W | Rotary engine vane wing apparatus and method of operation therefor |
US8523547B2 (en) * | 2005-03-09 | 2013-09-03 | Merton W. Pekrul | Rotary engine expansion chamber apparatus and method of operation therefor |
US8833338B2 (en) * | 2005-03-09 | 2014-09-16 | Merton W. Pekrul | Rotary engine lip-seal apparatus and method of operation therefor |
US8794943B2 (en) * | 2005-03-09 | 2014-08-05 | Merton W. Pekrul | Rotary engine vane conduits apparatus and method of operation therefor |
US9057267B2 (en) * | 2005-03-09 | 2015-06-16 | Merton W. Pekrul | Rotary engine swing vane apparatus and method of operation therefor |
US8689765B2 (en) * | 2005-03-09 | 2014-04-08 | Merton W. Pekrul | Rotary engine vane cap apparatus and method of operation therefor |
US7694520B2 (en) * | 2005-03-09 | 2010-04-13 | Fibonacci International Inc. | Plasma-vortex engine and method of operation therefor |
US8800286B2 (en) | 2005-03-09 | 2014-08-12 | Merton W. Pekrul | Rotary engine exhaust apparatus and method of operation therefor |
US8360759B2 (en) * | 2005-03-09 | 2013-01-29 | Pekrul Merton W | Rotary engine flow conduit apparatus and method of operation therefor |
JP4791987B2 (en) * | 2007-03-06 | 2011-10-12 | パナソニック電工株式会社 | Vane pump |
US20090087334A1 (en) * | 2007-09-28 | 2009-04-02 | Robert Whitesell | Sliding Vane Compression and Expansion Device |
CN102152092B (en) * | 2011-03-09 | 2012-08-08 | 王汉国 | Surface processing technology for stator inner cavity of medium/high pressure vane-type hydraulic motor |
CN105673315A (en) * | 2014-11-16 | 2016-06-15 | 镇江大力液压马达股份有限公司 | Integral flange axial flow allocation cycloid hydraulic motor |
US9964109B2 (en) * | 2015-12-10 | 2018-05-08 | Albert's Generator Services Inc. | Apparatus for driving fluid having a rotating cam and rocker arm |
CN106979151B (en) * | 2017-04-27 | 2018-07-17 | 重庆市永川区益锐机械有限责任公司 | Multifunctional vane pump |
US11085300B1 (en) | 2017-09-08 | 2021-08-10 | Regi U.S., Inc. | Prime movers, pumps and compressors having reciprocating vane actuator assemblies and methods |
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-
1980
- 1980-10-24 DK DK450480A patent/DK160720C/en not_active IP Right Cessation
- 1980-10-28 ES ES496323A patent/ES496323A0/en active Granted
- 1980-10-29 EP EP80401537A patent/EP0028197B1/en not_active Expired
- 1980-10-29 DE DE8080401537T patent/DE3070927D1/en not_active Expired
- 1980-10-29 IE IE2243/80A patent/IE51772B1/en not_active IP Right Cessation
- 1980-10-29 BR BR8006973A patent/BR8006973A/en unknown
-
1984
- 1984-02-06 US US06/576,798 patent/US4492541A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
BR8006973A (en) | 1981-05-12 |
IE802243L (en) | 1981-04-30 |
US4492541A (en) | 1985-01-08 |
DK160720C (en) | 1991-09-16 |
DK450480A (en) | 1981-05-01 |
DE3070927D1 (en) | 1985-09-05 |
EP0028197A1 (en) | 1981-05-06 |
ES8107365A1 (en) | 1981-10-01 |
ES496323A0 (en) | 1981-10-01 |
IE51772B1 (en) | 1987-04-01 |
DK160720B (en) | 1991-04-08 |
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