EP1561031B1 - Moteur a pistons axiaux, plateau oscillant et procede de fabrication d'un plateau oscillant - Google Patents

Moteur a pistons axiaux, plateau oscillant et procede de fabrication d'un plateau oscillant Download PDF

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Publication number
EP1561031B1
EP1561031B1 EP03776894A EP03776894A EP1561031B1 EP 1561031 B1 EP1561031 B1 EP 1561031B1 EP 03776894 A EP03776894 A EP 03776894A EP 03776894 A EP03776894 A EP 03776894A EP 1561031 B1 EP1561031 B1 EP 1561031B1
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EP
European Patent Office
Prior art keywords
collar
recoil plate
sliding
shoe
opening
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.)
Expired - Lifetime
Application number
EP03776894A
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German (de)
English (en)
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EP1561031A1 (fr
Inventor
Josef Beck
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.)
Brueninghaus Hydromatik GmbH
Original Assignee
Brueninghaus Hydromatik GmbH
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Filing date
Publication date
Priority claimed from DE10300070A external-priority patent/DE10300070A1/de
Application filed by Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1561031A1 publication Critical patent/EP1561031A1/fr
Application granted granted Critical
Publication of EP1561031B1 publication Critical patent/EP1561031B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/122—Details or component parts, e.g. valves, sealings or lubrication means
    • F04B1/124—Pistons
    • F04B1/126—Piston shoe retaining means

Definitions

  • the invention relates to an axial piston machine and a designated withdrawal plate and a method for producing the retraction plate.
  • a cylinder barrel rotates relative to an inclined plane.
  • a plurality of cylinder bores are introduced, in which axially displaceably arranged pistons perform a lifting movement.
  • the pistons are pivotally connected to a respective sliding block, wherein the sliding blocks are supported on the inclined plane and thus generate the stroke of the piston in a relative rotational movement.
  • Such a retraction plate is known for example from DE 197 51 994 A1.
  • the retraction plate proposed there has recesses arranged on a peripheral circle, which recesses are provided for receiving the sliding shoes.
  • a central opening is provided, with which the return plate is supported on an abutment, wherein the abutment has a spherical outer geometry and is arranged on the shaft of the axial piston machine.
  • the central opening is surrounded by a collar.
  • the holding force is exerted by a surface of the return plate oriented towards the oblique plane, which bears against the sliding shoes.
  • the recesses which receive the sliding shoes are penetrated by a partially cylindrical part of the sliding shoe.
  • a disadvantage of the known retraction plate is that radial forces, as in the operation of the Axial piston machine between the shoe and the return plate occur, can only be transmitted to the inner surface of the recesses. In order to prevent premature wear, it is therefore necessary to provide a corresponding material thickness for the return plate, so that the length of the holes in the axial direction ensures a sufficient guide height. Associated with this is the use of machining processes which, in addition to an unnecessarily high use of material, also increase the costs of machining.
  • the invention has for its object to provide a retraction plate and an axial piston machine, which are easy to manufacture and which are reduced in weight with improved function, and to provide a method for the simplified production of a retraction plate.
  • the object is achieved by the retraction plate according to the invention according to claim 1, the axial piston machine according to the invention according to claim 12 and the method according to the invention according to claim 23.
  • the retraction plate according to the invention has, in addition to a collar, which at a central passage opening is formed, formed in the opposite direction guide collar.
  • the guide collars each include a shoe receiving aperture, thereby increasing the guide height of the shoe receiving apertures relative to the thickness of the disk-shaped retraction plate.
  • the material thickness of the disc can be reduced so that there is a reduction of the rotating mass.
  • a considerable reduction of the material is achieved in particular by the manufacturing process of the retraction plate according to the invention, since a solidification of the material is caused by the preferably cold deformation in the region of the Gleitschuhabilityö Maschinenen.
  • the inner surface of the guide collar has the shape of a cylinder jacket surface, wherein it is particularly advantageous that the height of the cylinder jacket surface has a significant portion of the total height of the Gleitschuhabilityö réelleen and thus the guide height.
  • the greatest possible portion of the usable height of the retraction plate is used to form the guide height, which in turn reduces the wear occurring at the contact surface between the cylindrical portion of the shoe and the retraction plate.
  • both the openings in the retraction plate are produced starting from a basic body in a single step by a combined stamping and embossing process, and also that the edge surrounding the openings is reshaped into the collar or the guide collar. Further processing steps which increase the processing time are thus kept to a minimum.
  • the amount of machining is reduced to flattening and creating a high surface finish of the surface surrounding the central through-hole in a radially outward direction.
  • the main body which has the shape of a circular disk, a high load capacity is ensured, since the material of the main body is maintained between the Gleitschuhabilityö Maschinenen.
  • the resulting stiffness improves the endurance, especially with regard to material fatigue.
  • FIG. 1 shows an axial piston machine 1, which has a rotatably mounted in a housing 2 shaft 3, on which a cylinder drum 4 is arranged, wherein the cylinder drum 4 and the shaft 3 are rotatably connected to each other.
  • the shaft 3 penetrates the cylinder drum 4 and is mounted on both sides of the cylinder drum 4 in each case a rolling bearing 5 and 6, wherein an outer bearing ring 7 of the rolling bearing 6 is inserted into a corresponding recess of a housing cover 8.
  • a plurality of cylinder bores 9 are formed, wherein the central axes of the cylinder bores 9 extend parallel to the central axis of the shaft 3.
  • axially displaceable piston 10 are used, which on the side facing away from the housing cover 8 side have a spherical head 11 which cooperates with a corresponding recess of a shoe 12 to a hinge connection.
  • the pistons 10 are supported on a swash plate 13.
  • the pistons 10 Upon rotation of the cylinder drum 4, the pistons 10 therefore execute a stroke movement in the cylinder bores 9.
  • the height of the Hubs is determined by the position of the swash plate 13, wherein the position of the swash plate 13 in the embodiment by an adjusting device 14 is adjustable.
  • the cylinder drum 4 has a central opening 15, in which a compression spring 16 is arranged, which is stretched between a first spring bearing 17 and a second spring bearing 18.
  • the first spring bearing 17 is fixed by the shaft 3 in the axial direction
  • the second spring bearing 18, however, is formed in the illustrated embodiment by an inserted into a groove of the cylinder drum 4 Seeger ring. Due to the force of the compression spring 16, therefore, the cylinder drum 4 is moved in the axial direction so far that it rests sealingly with its end face 19 on a control plate 20.
  • control openings 22 and 23 are on their side remote from the cylinder drum 4 side in permanent contact with at least one high-pressure or low pressure connection.
  • a high-pressure or low-pressure connection is shown by way of example and provided with the reference numerals 26 and 26 '.
  • the cylinder bores 9 are open via openings 21 to the end face 19 of the cylinder drum 4.
  • the openings 21 sweep with a rotation of the cylinder drum 4, a sealing environment 27 of the control plate 20 and are connected during a rotation alternately with the control ports 22 and 23 of the high-pressure or low-pressure connection.
  • control plate 20 In the axial direction, the control plate 20 is supported on the housing cover 8. With a dowel 31, the control disk 20 is secured against rotation.
  • the central opening 15 of the cylinder drum 4 defines an internal leakage volume 44, which receives a portion of the leakage oil.
  • a connection, not shown, between the inner leakage volume 44 and an outer leakage volume 45 of the remaining housing volume is provided, so that a pressure compensation is possible.
  • the collected in the outer leakage volume 45 of the housing leakage fluid is supplied to the pressure medium circuit in a manner not shown again.
  • the lifting movement of the piston 10 is generated by the swash plate 13, which is arranged obliquely with respect to the central axis of the rotating cylinder drum 4.
  • the cylinder drum 4 is rotated by driving the shaft 3. Due to the pressure prevailing in the cylinder bores 9, the slide shoe 12 is held in contact with the swashplate 13 with a sliding surface 25 during a pressure stroke.
  • a negative pressure arises in the cylinder bores 9, through which the sliding shoes 12 could lift off the swashplate 13, in particular during operation of the axial piston machines 1 in an open circuit.
  • a retraction plate 24 is provided, which exerts a holding force on the sliding blocks 12 and thus holds them on a running surface 28 of the swash plate 13.
  • the retraction plate 24 which will be explained in more detail below with reference to Figures 2 to 5, has a central passage opening 32, with she is supported on an abutment 29.
  • the counter-bearing 29 is fixed in the illustrated embodiment of the shaft 3, so that it is axially non-displaceable in the direction of the housing cover 8.
  • the counter-bearing 29 has a spherical outer contour, which corresponds to a central through-opening 32 bounding surface and allows a change in the inclination angle of the return plate 24 relative to the shaft 3.
  • a holding surface 33 is formed on the shoe 12, which is in contact with a flat first surface 34 'of the retraction plate 24.
  • the sliding shoes 12 also have a guide section 35.
  • the guide portion 35 of a shoe 12 penetrates a shoe receiving hole 36 provided in the retreating plate 24, respectively.
  • the radial extent of the Gleitschuhfactötechnisch 36 is greater than the cylindrical in this area guide portion 35 of the sliding blocks 12th
  • a recess 37 is provided in the guide shoe 35 in the sliding block 12, whose geometry corresponds to the spherical head 11 of the piston 10.
  • the spherical recess 37 is closed so far around the spherical head 11 that also tensile forces between the shoe 12 and the respective piston 10 are transferable.
  • the contact surface is supplied by a lubricating oil bore in the piston 10 from the cylinder bore 9 with lubricant.
  • FIG. 2 a shows a retraction plate 24 in which the guide collar 38 and the collar 39 of the central passage opening 32 have already been formed from a disc-shaped basic body of thickness d.
  • the collar 39 is thereby formed so that at its the central passage opening 32 bounding inner surface 41st a spherical geometry is formed, which corresponds to the ball geometry 42, which is shown schematically and corresponds to the outer contour of the anvil 29.
  • the collar 39 is formed from the body of the retraction plate 24 so as to extend from a first surface 34 having an axial directional component from the first surface 34.
  • the guide collar 38 is already formed on the retraction plate 24 shown in FIG. 2a, through which the Gleitschuhfactö Samuelen 36 are completely closed.
  • the guide collars 38 extend in an opposite direction to the collar 39, so that the guide collars 38 also extend from a second surface 40 of the retraction plate 24 with an axial directional component.
  • the forming of the formed as a flat disc base body is preferably carried out in a single step simultaneously with the punching of the central passage opening 32 and the Gleitschuhabilityö Maschinenen 36. By embossing the central passage opening 32 and the Gleitschuhabilityö Samuelen 36 bounding edges of the body to the collar 39 and the guide collar 38, a solidification of the material of the retraction plate 24 is also achieved.
  • the thickness d of the material of the base body can be reduced again without getting problems with durability during operation of the axial piston machine 1.
  • Fig. 2b shows a finished retraction plate 24.
  • the first surface 34 processed so that a flat first surface 34 'is formed, which surrounds the collar 39 in the radial direction on the outside.
  • the deformation height h of the guide collar 38 is preferably between 50% and 75% of the thickness d of the main body.
  • the forming height h is chosen so that its share in the total height H is about 40%.
  • FIG. 3a shows a detail IIIa from FIG. 2a in an enlarged view.
  • both the first surface 34 and a machining allowance 49 is shown, which is indicated by the dashed line.
  • the Gleitschuhfactö réelle 36 has an inner surface 43 which has the shape of a cylinder jacket surface.
  • the base body is reshaped so that the inner surface 43 in the axial direction has the shape of a cylinder jacket surface, wherein the height of the cylinder jacket surface extends over a substantial part of the functional height.
  • the cylindrical surface is produced directly by the stamping process, without the need for a subsequent machining.
  • a region 41 ' is provided in addition to the spherical portion, which has the shape of the lateral surface of a truncated cone.
  • the region 41 ' is that part of the inner surface 41 of the collar 39, which is furthest away from the first surface 34.
  • Fig. 3b the section IIIb of Fig. 2b is shown enlarged.
  • the flat first surface 34 ' is produced by means of machining on the retraction plate 24.
  • an undercut 47 is provided at a transition between the collar 39 and the flat first surface 34 '.
  • a radius 46 is worked out at the transition between the planar first surface 34' and the inner surface 43. It will that portion of the inner surface 43 which deviates from the shape of a cylinder jacket surface by the radius 46 is kept small in comparison to the overall height H.
  • the radius 46 is preferably only about 0.6 mm. More generally, it can be stated that the radius 46 preferably occupies a portion of the guide height H of less than 15%.
  • the inner surface 41 of the central passage opening 32 has a region 41 'which has the shape of a conical jacket. A portion of this portion 41 'is cured, preferably using a laser process to cure a narrow portion 48. The heat input during laser hardening is limited locally and the occurring material distortion is negligible. A subsequent machining is therefore not required.
  • Fig. 4 is a plan view of the retraction plate 24 according to the invention from the side of the guide collar 38 is shown.
  • the retraction plate 24 is made of a circular disk as a base body, so that the retraction plate 24 has a circular outer contour 50.
  • the central passage opening 32 is introduced into the retraction plate 24 concentrically with the circular outer contour 50.
  • the Gleitschuhabilityö réelleen 36 are arranged on a circumferential circle 51, which is also arranged concentrically to the outer contour 50 of the retraction plate 24. In the illustrated embodiment, nine Gleitschuhabilityö Samuelen 36 are arranged uniformly distributed along the circumferential circle 51.
  • the diameter of the circular outer contour 50 is selected so that the guide collar 38 are completely closed around the Gleitschuhfactö Anlagenen 36.
  • the guide collars 38 are also surrounded by an outer portion 52 which encloses all the guide collar 38 as a closed circular disc.
  • Between Guide collar 38 adjacent Gleitschuhabilityö Anlagenen 36 are disc elements 53 formed with the thickness d of the body, through which the retraction plate 24 reaches a high degree of rigidity.
  • a retraction plate 24 is shown again as a perspective view.
  • the retraction plate can also be used without aftertreatment of the contact surface with the sliding shoes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)

Claims (28)

  1. Plateau oscillant pour une machine à pistons axiaux, où le plateau oscillant (24) est réalisé en forme de disque et présente un orifice de passage central (32), qui est entouré par un collet (39), qui s'étend depuis une première surface (34, 34') du plateau oscillant (24) avec une composante directionnelle axiale, et où le plateau oscillant (24) présente plusieurs orifices de logement de patin (36), caractérisé en ce que chacun des orifices de logement de patin (36) est entouré par un collet de guidage (38), qui s'étend depuis une seconde surface (40) du plateau oscillant (24) opposée au collet (39) de l'orifice de passage central (32) avec une composante directionnelle axiale.
  2. Plateau oscillant selon la revendication 1, caractérisé en ce qu'au moins une partie d'une surface intérieure (43) du collet de guidage (38) délimitant chacun des orifices de logement de patin (36) présente la forme d'une surface d'enveloppe cylindrique.
  3. Plateau oscillant selon la revendication 2, caractérisé en ce que la hauteur de la surface d'enveloppe cylindrique a une part importante dans une hauteur totale (H) de l'orifice de logement de patin (36).
  4. Plateau oscillant selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la première surface (34, 34') du plateau oscillant (24) est une surface plane dans une zone, qui entoure le collet (39) à l'extérieur dans le sens radial.
  5. Plateau oscillant selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les orifices de logement de patin (36) sont complètement entourés par une zone radialement extérieure (52) du plateau oscillant (24).
  6. Plateau oscillant selon la revendication 5, caractérisé en ce que la zone radialement extérieure (52) du plateau oscillant (24) présente un contour extérieur circulaire (50).
  7. Plateau oscillant selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'une partie d'une surface intérieure (41) du collet (39) délimitant l'orifice de passage central (32) dans le sens radial présente une forme sphérique.
  8. Plateau oscillant selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'au moins une section (41') de la surface intérieure (41) du collet délimitant l'orifice de passage central (32) est durcie.
  9. Plateau oscillant selon l'une quelconque des revendications 1 à 8, caractérisé en ce que le collet (39) et les collets de guidage (38) sont réalisés par déformation d'un corps de base plan.
  10. Plateau oscillant selon la revendication 9, caractérisé en ce que le corps de base est un disque.
  11. Plateau oscillant selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le collet (39) ainsi que les collets de guidage opposés (38) sont réalisés dans un procédé de découpe et d'estampage.
  12. Machine à pistons axiaux comportant un tambour cylindrique (4), qui tourne par rapport à une surface de roulement (28) disposée inclinée par rapport à lui, sur laquelle s'appuient des patins (12) avec une surface de glissement (25) en vue de la génération d'une course de déplacement des pistons (10) coulissant axialement dans des alésages cylindriques (9) du tambour cylindrique (4), les patins (12) étant maintenus en appui avec la surface de roulement (28) pendant une course d'admission grâce à un plateau oscillant (24) et le plateau oscillant (24) présentant des orifices de logement de patin (36) en vue du logement des patins (12), une surface de retenue (33) du patin (12) orientée opposée à la surface de glissement (25) des patins (12) reposant à chaque fois sur une première surface (34) du plateau oscillant (24) et le plateau oscillant (24) s'appuyant avec une surface intérieure (41) d'un collet (39) entourant un orifice de passage central (32) sur un palier support (29) et le collet (39) s'étendant avec une composante directionnelle axiale depuis la première surface (34), caractérisée en ce que les orifices de logement de patin (36) sont chacun entourés par un collet de guidage (38), qui s'étend depuis une seconde surface (40) du plateau oscillant (24) opposée au collet (39) de l'orifice de passage central (32) avec une composante directionnelle axiale.
  13. Machine à pistons axiaux selon la revendication 12, caractérisée en ce qu'au moins une partie d'une surface intérieure (43) du collet de guidage (38) délimitant à chaque fois l'orifice de logement de patin (36) présente la forme d'une surface d'enveloppe cylindrique.
  14. Machine à pistons axiaux selon la revendication 13, caractérisée en ce que la hauteur de la surface d'enveloppe cylindrique a une part importante dans une hauteur totale (H) de l'orifice de logement de patin (36).
  15. Machine à pistons axiaux selon l'une quelconque des revendications 12 à 14, caractérisée en ce que la première surface (34, 34') du plateau oscillant (24) est une surface plane (34') dans une zone, qui entoure le collet (39) à l'extérieur dans le sens radial.
  16. Machine à pistons axiaux selon l'une quelconque des revendications 12 à 15, caractérisée en ce que les orifices de logement de patin (36) sont complètement entourés par une zone radialement extérieure (52) du plateau oscillant (24).
  17. Machine à pistons axiaux selon la revendication 16, caractérisée en ce que la zone radialement extérieure (52) du plateau oscillant (24) présente un contour extérieur circulaire (50).
  18. Machine à pistons axiaux selon l'une quelconque des revendications 12 à 17, caractérisée en ce qu'une partie d'une surface intérieure (41) du collet (39) délimitant l'orifice de passage central (32) dans le sens radial présente une forme sphérique.
  19. Machine à pistons axiaux selon l'une quelconque des revendications 12 à 18, caractérisée en ce qu'au moins une section (41') de la surface intérieure (41) du collet (39) délimitant l'orifice de passage central (32) est durcie.
  20. Machine à pistons axiaux selon l'une quelconque des revendications 12 à 19, caractérisée en ce que le collet (39) et les collets de guidage (38) sont réalisés par déformation d'un corps de base plan.
  21. Machine à pistons axiaux selon la revendication 20, caractérisée en ce que le corps de base est un disque.
  22. Machine à pistons axiaux selon l'une quelconque des revendications 12 à 21, caractérisée en ce que le collet (39) ainsi que les collets de guidage opposés (38) sont réalisés dans un procédé de découpe et d'estampage.
  23. Procédé de fabrication d'un plateau oscillant (24) pour une machine à pistons axiaux (1) comportant les étapes de procédé suivantes :
    - Fabrication d'un corps de base en forme de disque ;
    - Découpe d'orifices de logement de patin (36) ;
    - Découpe d'un orifice de passage central (32) ;
    - Déformation d'un bord intérieur du corps de base en forme de disque délimitant l'orifice de passage central (32) en un collet (39) de manière à ce que le collet (39) s'étende depuis une première surface (34) du plateau oscillant (24) avec une composante directionnelle axiale ; et
    - Déformation d'un bord du corps de base en forme de disque délimitant à chaque fois les orifices de logement de patin (36) en un collet de guidage (38) chacun de manière à ce que les collets de guidage (38) s'étendent depuis une seconde surface (40) du plateau oscillant (24) avec une composante directionnelle axiale.
  24. Procédé selon la revendication 23, caractérisé en ce qu'au moins une section (41') d'une surface intérieure (41) du collet (39) est durcie.
  25. Procédé selon la revendication 24, caractérisé en ce que la section (41') de la surface intérieure (41) est durcie à l'aide d'un laser.
  26. Procédé selon l'une quelconque des revendications 23 à 25, caractérisé en ce que les bords des orifices de logement de patin (36) et le bord intérieur de l'orifice de passage central (32) sont déformés dans un processus d'estampage commun pour former les collets de guidage (38) et le collet (39).
  27. Procédé selon la revendication 26, caractérisé en ce que le matriçage de l'orifice de passage central (32) et des orifices de logement de patin (36) et la déformation des bords sont réalisés en une seule et même étape dans un processus de découpe et d'estampage.
  28. Procédé selon l'une quelconque des revendications 23 à 27, caractérisé en ce que la première surface (34) du corps de base en forme de disque opposée aux collets de guidage (38) est travaillée après la déformation quant à sa planéité et à la qualité de sa surface.
EP03776894A 2002-11-15 2003-11-10 Moteur a pistons axiaux, plateau oscillant et procede de fabrication d'un plateau oscillant Expired - Lifetime EP1561031B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10253379 2002-11-15
DE10253379 2002-11-15
DE10300070 2003-01-03
DE10300070A DE10300070A1 (de) 2002-11-15 2003-01-03 Axialkolbenmaschine, Rückzugplatte und Verfahren zum Herstellen einer Rückzugplatte
PCT/EP2003/012526 WO2004046548A1 (fr) 2002-11-15 2003-11-10 Moteur a pistons axiaux, plateau oscillant et procede de fabrication d'un plateau oscillant

Publications (2)

Publication Number Publication Date
EP1561031A1 EP1561031A1 (fr) 2005-08-10
EP1561031B1 true EP1561031B1 (fr) 2006-02-22

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EP03776894A Expired - Lifetime EP1561031B1 (fr) 2002-11-15 2003-11-10 Moteur a pistons axiaux, plateau oscillant et procede de fabrication d'un plateau oscillant

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EP (1) EP1561031B1 (fr)
DE (1) DE50302486D1 (fr)
WO (1) WO2004046548A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010015073A1 (de) 2010-04-15 2011-10-20 Robert Bosch Gmbh Axialkolbenmaschine mit einer Rückzugplatte sowie Verfahren zu deren Herstellung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013212147A1 (de) * 2013-06-25 2015-01-08 Robert Bosch Gmbh Schrägscheibenmaschine

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4111103A (en) * 1977-02-14 1978-09-05 Commercial Shearing, Inc. Thrust rings for swash plate pumps and motors
DE4405967C2 (de) * 1994-02-24 1997-06-05 Danfoss As Hydraulische Axialkolbenmaschine
US5862704A (en) * 1996-11-27 1999-01-26 Caterpillar Inc. Retainer mechanism for an axial piston machine
DE10119239C1 (de) * 2001-04-19 2002-12-12 Brueninghaus Hydromatik Gmbh Axialkolbenmaschine in Schrägachsen-Bauweise mit einem Schwenkwinkel-Sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010015073A1 (de) 2010-04-15 2011-10-20 Robert Bosch Gmbh Axialkolbenmaschine mit einer Rückzugplatte sowie Verfahren zu deren Herstellung
WO2011128010A1 (fr) * 2010-04-15 2011-10-20 Robert Bosch Gmbh Machine à piston axial comprenant une plaque de rappel et son procédé de fabrication

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Publication number Publication date
DE50302486D1 (de) 2006-04-27
EP1561031A1 (fr) 2005-08-10
WO2004046548A1 (fr) 2004-06-03

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