EP1482174A1 - Machine à piston axial - Google Patents

Machine à piston axial Download PDF

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Publication number
EP1482174A1
EP1482174A1 EP04020799A EP04020799A EP1482174A1 EP 1482174 A1 EP1482174 A1 EP 1482174A1 EP 04020799 A EP04020799 A EP 04020799A EP 04020799 A EP04020799 A EP 04020799A EP 1482174 A1 EP1482174 A1 EP 1482174A1
Authority
EP
European Patent Office
Prior art keywords
axial piston
piston machine
machine according
swash plate
housing
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Withdrawn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
EP04020799A
Other languages
German (de)
English (en)
Inventor
Rainer Stölzer
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
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Brueninghaus Hydromatik GmbH filed Critical Brueninghaus Hydromatik GmbH
Publication of EP1482174A1 publication Critical patent/EP1482174A1/fr
Withdrawn legal-status Critical Current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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly
    • 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 according to the preamble of claim 1 or 2.
  • An axial piston machine of this type is in the DE-OS 21 01 213 described.
  • this previously known Axial piston machine is the restraint device for support the retraction device formed by holding plungers, which in radial guide holes in the housing can be moved radially stored and biased radially inwards by springs, with sloping faces at their inner ends, the relative radial plane to the neighboring one Retraction device are inclined and with these Sloping the outer edge of the retractor reach behind the perforated disc.
  • This well-known Restraint is due to the inclined surfaces following disadvantages.
  • Another major disadvantage of the known Axial piston machine is that the holding plunger due to their projection into the interior of the housing Assembly or disassembly of the arranged in the interior of the housing Affect components.
  • the invention has for its object a Restraint device of the type specified above to design that a safe function and a long Lifetime is achievable.
  • the restraint acts with a non-rotating Component, namely the swash plate together, the Retraction device with one behind it Support device which interacts with the swash plate connected is.
  • Restraint device in the functional mode of the Axial piston machine automatically or automatically from one the release device releasing release position in a the retraction work position postponed and after the functional mode was switched off automatically moved back to their release position, the shift into the working position by the Print from an existing, adjacent, or neighboring Pressure chamber or a pressure line and the Shift into the release position by the force of a Spring takes place.
  • a Restraint device By loading the Restraint device with one in the functional operation of the Axial piston machine existing internal pressure or a External pressure, e.g. B. from an adjacent Axial piston machine, can be a simple Generate insertion force that is greater than the required Retraction or pushing force, so that the functional Position of the restraint in its working position is guaranteed.
  • the retraction device is in the area of the side half of the Arrange the axial piston machine in the area of the pistons perform a suction stroke, this area approximating extends over 180 °.
  • One in the area of this side half, preferably centrally arranged restraint, or several arranged on this side half Restraint devices are for pump operation configured axial piston machine also functional, if the axial piston machine due to a braking function executes an engine operation.
  • adjustable axial piston machines are one or several restraint systems in the area of both Arrange side halves.
  • the retention device is preferred in cross section circular stop pin, in a radial Guide hole in the housing between the working position and the Release position is slidably mounted. It is advantageous to use the pin in its outer end region to provide a flange to which one between the latter and an inner spring shoulder arranged spring, especially a coil spring to attack and the To apply the stop pin in its release position can.
  • For pneumatic or hydraulic displacement of the pen in its working position can with respect to the Stop pin radially outer hole space through a Channel with the housing interior or with an in Functional operation of the axial piston machine a pressure exhibiting space. Then when the hole space is connected to the housing interior, the channel in the housing wall or run longitudinally in the stop pin.
  • stop pin it is also advantageous to arrange the stop pin so that between him and the retractor a little Distance exists, which is only dimensioned so large that at one Overloading and deformation of the retraction device in your elastic area of the retraction device on the stop pin strikes before it deforms beyond its yield strength becomes.
  • the support device from the Restraint device is actuated so that the Support device the retraction device only then engages when the restraint is in its Working position, and otherwise releases.
  • the restraint is therefore not only the swash plate anchored in the housing, but additionally ensures that the retraction device on the Swashplate is secured.
  • the disassembly position at which the restraint is not actuated then not just the swash plate with respect to the housing released, but also securing the Retraction device opposite the swashplate released. In this way, the disassembly can be done easily.
  • the support device for example, a toothed with the restraint Have axis of rotation, which when pressing the Retention device is rotated.
  • a eccentric extension can be arranged depending on Rotary position of the axis of rotation of the retraction device engages or releases.
  • Axial piston machine is a housing 2 with one in the Drawing in section visible housing wall 2a, one Encloses interior 3, in which on a shaft 4 Cylinder drum 5 with several, preferably on one Pitch circle distributed and longitudinal cylinder bores 6 are arranged, with a plurality of pistons 7, which in the Cylinder bores 6 are axially displaceable, several sliding shoes 8, which are pivotable, but axially fixed with spherical piston heads 9 at one end of the pistons 7 are connected to a swash plate 11, on the Sloping surface 12 abut the sliding shoes 8 and axially are supported, the swash plate 11 by a perpendicular to the longitudinal center axis of the axial piston machine 1 or the axis of rotation 13 of the shaft 4 extending pivot axis 14 pivotable in a pivot bearing, not shown stored and lockable in the respective swivel position with a retraction device 15, the purpose of which is the contact of the sliding shoes 8 on the inclined surface 12 secure,
  • the retraction device 15 is provided with a perforated disk 22 for the slide shoes 8 existing holes 23 formed Hole edges of the sliding shoes in the area of tapered Skid heads surrounded with movement and with their the swash plate 11 facing side on a foot flange 24 of the associated slide shoe 8 so that the Foot flange 24 with little movement between the Inclined surface 12 and the perforated disc 22 is held.
  • the Perforated disc 22 itself lies on the swash plate 11 opposite side on a shoulder surface of the shaft 4 or of an attachment or the cylinder drum 5, whereby it in the axial direction facing away from the swash plate 11 is supported.
  • the shoulder surface 25 can also be on one the shaft 4 fixed support ring 26 may be formed.
  • the retainer 16 is cylindrical or step cylindrical stop pin or pin 31 formed with little movement in a radial Guide hole or a guide bore 32 in the Housing wall 2a is mounted radially displaceable, the radial central axis 33 perpendicular to the axis of rotation 13 and runs parallel to the pivot axis 14 and with respect the latter to the side opposite the control disk 17 is offset.
  • the stop pin 31 is between one radially inserted and shown in the drawing Working position in which its radially inner pin end 34 a shoulder surface 11a facing the control disk 17 the swash plate 11 overlaps and thus the swash plate 11 axially supported, and a radially extended Release position in which the pin end 34 from the Housing interior 3 is pushed out or the Swash plate 22 for axial assembly or disassembly releases, adjustable.
  • the recess 11b in the central region of the Swash plate 11, the depth t of the recess 11b a few millimeters, e.g. B.
  • the recess 11b can be about 3 to 5 mm.
  • the Cross-sectional size of the recess 11b is below Taking into account a movement play b larger, than the cross-sectional size of the stop pin 31, so that this fits into the recess 11b with movement play b, as shown in Fig. 1.
  • the Central axis 33 of the stop pin 31 coaxial with Pivot axis 14 arranged the recess 11b circular can be formed. If the central axis 33 with respect to the pivot axis 14 axially and possibly also radially is offset, an arc around the Pivot axis 14 curved shape of the shoulder surface 11a, wherein the recess 11b by an arc curved slot can be formed.
  • the stop pin 31 rest with its end face against the bottom of the recess 11b and thereby radially support the swash plate 11 or one small distance in the sense of a game of movement from it exhibit.
  • the Support device 16a by two diametrically opposed to each other opposite, arranged in mirror image and with the Swashplate 11 connected support parts 16b formed in the present embodiment with an axial Support leg 16c, the radially next to the Retraction device 15 or next to the perforated disk 22 is arranged, and one of the support leg 16c radially inwardly projecting support leg 16d formed are connected in one piece.
  • the support parts 16b can also be connected in one piece to the swash plate 11 be and from this z. B. project axially.
  • the support parts 16b are separate Parts with a flat base 16e on the flat Sliding surface 12 of the swash plate 11 abut and through Cap screws 16f are screwed to the swash plate 11, each supporting leg 16c in one Grip through hole and into a threaded hole in the Hold the swash plate 11.
  • the radial distances between the support leg 16c and the perforated disc 22 on the one hand and the housing wall 2a on the other hand are each so large to be dimensioned such that the swash plate 11 there is always a radial distance.
  • the perforated disc 22 is a small axial distance a available.
  • the contact surface of the supporting part leg is one flat surface, creating a low surface pressure and a low wear and a long service life are guaranteed.
  • each support part 16b with several, in particular two, Cap screws 16f can be screwed.
  • the radially inward movements of the Stop pin 31 are limited by a stop 35.
  • This working position is by a step surface 37 stepped guide bore 32 and one Step surface 38 of the radially outward divergent step trained stop pin 31 determined.
  • On Sealing plug 39 is incorporated into the outside Guide bore 32 screwed in and sealed.
  • to Sealing of the stop pin 31 is one or two Ring seals 41 provided between the wall of the Guide bore 32 and the outer surface of the Stop pin 31 in an annular groove on or on arranged on both sides of the step surfaces 37, 38 and are effective.
  • the stop pin 31 is in by the force of a spring 40 biased his release position, the present Embodiment is formed by a coil spring that on a flange 31 a at the outer end of the stop pin 31 attacks and that on a step surface 32a of an outer Bore extension 32b of the guide bore 32 abuts.
  • the distance b can also be omitted, since there is no substantial relative movement between the Swash plates 11 and the stop pin 31 takes place.
  • the Distance a and / or b is a maximum that at one large axial load, the retraction device 15 against the Support surface 31b abuts and the shoulder surface 11a against the Stop pin 31 bumps before the retractor 15 over their elastic deformation range beyond or beyond their Yield point is deformed. This is ensures that only at peak loads Retraction device 15, here the perforated disc 22, in contact with the support leg 16d and indirectly via the Swash plate 11 come into contact with support surface 31b and then effective via the stop pin 31 on the housing 2 can be supported.
  • the swash plate 11 thereof the zero position is pivotable, is on the opposite side a restraint device 16 to be arranged in mirror image accordingly, at Reversal of direction comes into operation.
  • the hole space located radially outside of the stop pin 31 forms a in the functional operation of the axial piston machine 1 secondary pressure chamber 42 through a channel 43, 44 with a primary pressure chamber is connected, in which Functional operation of the axial piston machine 1 a pressure there prevails through the channel 43, 44 into the pressure chamber 42 reproduces and at the outer end of the stop pin 31st generates a radially inward thrust that the Force of the spring 40 overcomes and the stop pin 31 in shifts his working position.
  • the primary pressure chamber it can e.g. B. the Act housing interior 3, in which is in functional operation the axial piston machine 1 has a sufficient leak pressure that generates the aforementioned thrust can.
  • this Interior pressure on the end face of the pin end 34 a Opposing force is generated and therefore the effective difference surface between the outer and inner face of the Stop pin 31 or the interior pressure correspondingly large is to be measured.
  • the pressure space 42 through a running in the housing wall 2a, for. B.
  • a working or control pressure having pressure line of the axial piston machine or adjacent hydraulic unit (external pressure) connected be, whereby this working or control pressure or External pressure should be so great that it is the force of the spring 40 overcoming thrust generated.
  • this working or control pressure or External pressure should be so great that it is the force of the spring 40 overcoming thrust generated.
  • this working or control pressure or External pressure should be so great that it is the force of the spring 40 overcoming thrust generated.
  • the interior pressure on the inner face of the Stop pin 31 counter force generated and the difference area between the outer and inner End face of the stop pin 31 or the working or To measure control or external pressure accordingly large.
  • both channels 43, 44 can be present at the same time be, with only one or both channels to the associated Pressure source can be connected.
  • a check valve 45, 46 in both channels 43, 44 to arrange, the valve body 47, 48 in the direction of the associated pressure source closes.
  • the valve bodies 47, 48 can be biased into their closed position by a spring be or they can be arranged freely movable without a spring his.
  • channel 44 is not connected and the Housing interior 3 is used as primary pressure chamber 49, plants in the functional mode that in the interior 3 existing pressure through channel 43 in the secondary Pressure chamber 42 continues where it is at the outer end of the stop pin 31 the insertion force for displacing the stop pin 31 generated in its working position. That closes Check valve 46 automatically by its valve body 48th under the existing pressure against the associated Valve seat 51 moves.
  • channel 44 is connected to one primary pressure chamber connected, then the Stop pin 31 by this pressure in his Working position shifted, the valve body 47 of the Check valve 45 on the associated valve seat 52 closes automatically, creating pressure inside the housing 3 remains unaffected and there are no leakage losses.
  • the check valves 45, 46 limit a closed one Pressure chamber system in which the pressure has to be released, before e.g. B. for disassembly of the swash plate 11 or Retraction device 15 of the stop pin 31 in its Release position is displaceable. This can e.g. B. by a at least slightly opening the sealing plug 39 respectively.
  • On such relaxation channel 53 with a throttle 54 can, for. B. be arranged in the plug 39, as is the drawing suggestively shows.
  • the support device 16a is formed the same as 1, however, is the Restraint device 16, in contrast to FIG. 1, is not on Housing 2, but arranged on the swash plate 11 and between a radially inserted release position and a radially extended working position in which the Stop pin 31 a shoulder surface 2b on the housing 2nd engages behind and thereby axially in the direction of the pistons 7 is supported, slidably mounted.
  • the at least one stop pin 31 by a spring 40 in its release position biased and by a pressure in a pressure space 42 in adjacent to the stop pin 31 his working position can be applied.
  • This one too Design is the round stop pin 31 with a Piston 56 and one projecting radially outward therefrom Piston shaft 57 designed as a stepped piston.
  • the piston 56 is approximately radial and in the central area of the Swash plate 11 arranged and on its peripheral surface emerging blind bore 58 and mounted in each case by the one surrounding the piston skirt 57 Coil spring formed spring 40 towards the bottom the blind bore 58 biased.
  • the spring 40 acts on the one hand against the piston ring surface and on the other hand against an abutment shoulder 59, the z. B. by a Circlip can be formed, which in an inner groove the wall of the blind bore 58 is inserted.
  • the depth of the Blind bore 58 and the lengths of the piston 56 and the Piston shaft 57 are coordinated so that in the inserted release position (Fig. 3 above) Stop pin 31 a distance from the inner surface of the Has housing wall 2a and in the pushed out Working position of the stop pin 31 is approximately radial Shoulder surface 2b engages behind the piston 7 in the axial Direction is facing away and thereby the supporting force Fg provide the abutment for the piston forces Fr can.
  • the shoulder surface can 2b through a recess 2c or blind hole in the Inner lateral surface of the housing wall 2a can be formed. How 1 is also in the embodiment of FIG 2 to 4, the supporting force of the Housing 2 designated F, which due to Transfer effect of the support device 16a also on Support leg 16d is effective.
  • the secondary located in the bottom of the blind bore 58 Pressure chamber 42 is through at least one or at the present embodiment also two channels 61, 62 each connected to a primary pressure room. It stretches a common for both aforementioned channels 61, 62 Channel 63 z. B. secantial through the swash plate 11, wherein this channel is an enlarged transverse or axial Channel section 64 cuts into which a valve cartridge 65 is firmly used, e.g. B. is screwed.
  • the channels 61, 62 extend opposite to each other from the valve space a shuttle valve 66 in which a valve body, for. Legs Valve ball 67, coaxial to the channels 61, 62 movable is stored and its openings to the channels 61, 62nd can mutually close and open.
  • the one with 61 designated channel opens into the housing interior 3, while the channel designated 62 by a throttled Channel connection 68, the associated slide shoe 8 and axially penetrates a piston head 9, with the associated Piston chamber and thus with a known hydrostatic pressure relief for the shoe 8 and the associated piston head 9 is connected.
  • the pistons 7 are preferably designed as a hollow piston.
  • the stop pin 31 both from the working pressure and from the housing interior pressure optionally applied and in its working position are pushed out, the valve body 67 each a lower pressure channel 61, 62 closes automatically.
  • the Working pressure the application of pressure space 42 take.
  • the housing interior pressure can Applying pressure when the working pressure drops, e.g. B. immediately after a shutdown of the Axial piston machine 1, one even after switching off housing interior pressure still existing for a certain time Stop pin 31 in its extended working position can hold.
  • the spring 40 can Move stop pin 31 to its release position, in the swash plate 11 is easily removable.
  • both channels intersect 63 the channel 64 containing the valve cartridge 65 for the purpose Connection to channels 61, 62.
  • the valve cartridge 65 has one or more radial in the area of the valve chamber Connection holes that open into the channel or channels 63.
  • Fig. 5 shows the hydraulic control of the or Restraint devices schematically, wherein in the channels 61, 62 each have a throttle 69, 71 for the purpose of throttling the Working pressure or the internal pressure of the housing is arranged.
  • the pivot axis 14 and Central axis 31 of the retention device 16 coaxial are arranged to each other (not shown).
  • two round stop pins arranged opposite one another 31 can form the swivel bearing of the swash plate 11, if the recesses 2c, 11b receiving the stop pins 31 Bearing recesses are and especially through bearing holes are formed. This applies both to the design according to 1 as well as for that of FIGS. 2 to 4.
  • hole 66 penetrated by the shaft 4 in the swash plate 11 to be arranged eccentrically to the side see (c) in housing 2, to which the pivot axis 14 and / or the central axis 31 is offset.
  • This eccentricity can be less than c be the offset dimension d and preferably about half as large his.
  • the swash plate 11 on their back 2 an obtuse angle W with each other enclosing contact surfaces 11c, 11d, which are preferably are even, and with which they are minimal and in their position maximum swivel angle on the opposite end wall 2d of the housing 2 is present.
  • the swash plate 11 not only in their pivoting end positions, but with the Vertex 67 also in optional intermediate positions on the Front wall 2d abut and be axially supported, which the Swivel bearing formed or the existing on both sides Swivel bearings of the swash plate 11 are relieved and thus can be less stable.
  • the plant of the Contact surfaces 11c, 11d are particularly advantageous if two stop pins 31 form the pivot bearing as it Fig. 4 shows a hint.
  • the support device 16a the retraction device 15 is not continuous reaches behind, but only reaches behind if the Restraint 16 in its extended Working position. If the restraint 16, however, in their undeployed basic position is, the support device 16a gives the Retraction device 15 free. This makes disassembly easier the axial piston machine 1 essential.
  • Embodiment comprises the support device 16a each a rotary shaft 80.
  • On the rotary shaft 80 is a eccentric, in the exemplary embodiment plate-shaped, Extension 81 arranged or in one piece with the rotary shaft 80 educated.
  • the rotary shaft 80 is engaged with the stop pin 31 of the retainer 16. If the Stop pin 31 of that shown in Fig. 7 Home position in the working position shown in Fig. 6 is shifted, this translational movement of the Stop pin 31 a rotational movement of the rotary shaft 80 and thus rotation of the eccentric extension 81 on each Rotary shaft 80.
  • the eccentric extension 81 is so arranged that he only the retraction device 15th engages when the stop pin 31 of the Restraint device 16 is in its working position, as shown in Fig. 6. If the Stop pin 31, however, in its shown in Fig. 7 Basic position, so the eccentric reaches behind Extension 81 of the two rotary shafts 80 the retraction device 15 not, so that the retraction device 15 and thus connected components can be easily disassembled.
  • the stop pin 31 has a toothing 82 with a Teeth 83 meshes on the rotary shaft 80.
  • the exemplary embodiment is the toothing 82 of the Stop pin 31 on a flat 84 of the Stop pin 31 formed in the manner of a rack.
  • toothing 82 could also be provided on the Circumferential surface of the stop pin 31 circumferential grooves be trained.
  • the rotating shaft 80 is in the range in which it is in engagement with the stop pin 31, as Gear wheel with teeth 85 arranged circumferentially distributed educated.
  • the rotary shaft 80 stands by the toothing 83 in operative connection with the associated stop pin 31, that with a shift or translation movement of the Stop pin 31, the rotary shaft 80 a rotary movement performs.
  • Embodiments are particularly advantageous in that the actuation of the restraint device 16 is both a Anchoring the swash plate 11 to the housing 2, as well the retraction device 15 on the swash plate 11 is effected automatically or automatically.
  • the housing interior 3 adjusts a housing interior pressure or A system pressure is present via the channel connection 68 the retention device 16 actuated and causes the anchoring described.
  • this anchoring automatically reset, causing Maintenance work can be simplified considerably.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Reciprocating Pumps (AREA)
EP04020799A 1999-03-03 2000-02-28 Machine à piston axial Withdrawn EP1482174A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19909311 1999-03-03
DE19909311A DE19909311C2 (de) 1999-03-03 1999-03-03 Axialkolbenmaschine
EP00910719A EP1157211B1 (fr) 1999-03-03 2000-02-28 Machine a piston axial

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP00910719.4 Division 2000-02-28
EP00910719A Division EP1157211B1 (fr) 1999-03-03 2000-02-28 Machine a piston axial

Publications (1)

Publication Number Publication Date
EP1482174A1 true EP1482174A1 (fr) 2004-12-01

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ID=7899567

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04020799A Withdrawn EP1482174A1 (fr) 1999-03-03 2000-02-28 Machine à piston axial
EP00910719A Expired - Lifetime EP1157211B1 (fr) 1999-03-03 2000-02-28 Machine a piston axial

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00910719A Expired - Lifetime EP1157211B1 (fr) 1999-03-03 2000-02-28 Machine a piston axial

Country Status (4)

Country Link
US (1) US6662707B1 (fr)
EP (2) EP1482174A1 (fr)
DE (2) DE19909311C2 (fr)
WO (1) WO2000052332A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10300070A1 (de) * 2002-11-15 2004-06-03 Brueninghaus Hydromatik Gmbh Axialkolbenmaschine, Rückzugplatte und Verfahren zum Herstellen einer Rückzugplatte
US7753659B2 (en) * 2006-04-10 2010-07-13 The Boeing Company Axial cam air motor
DE102006042677A1 (de) * 2006-07-10 2008-01-17 Robert Bosch Gmbh Axialkolbenmaschine mit einer Ansatzscheibe an einer Rückhaltescheibe, entsprechende Rückhaltescheibe und entsprechende Ansatzscheibe
DE102010036199B4 (de) 2010-09-02 2021-11-18 Linde Hydraulics Gmbh & Co. Kg Axialkolbenmaschine mit verringerter Verlustleistung durch Verwendung geeigneter Dichtmittel im Bereich der Schrägscheibenausnehmung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2101213A1 (de) * 1970-01-16 1971-09-16 Sperry Rand Corp , Troy, Mich (V St A) Axialkolbenpumpe oder motor
US3605565A (en) * 1970-03-13 1971-09-20 Sperry Rand Corp Power transmission
US3810419A (en) * 1972-11-16 1974-05-14 Abex Corp Adjustable fixed displacement hydraulic transducer apparatus
DE3940441A1 (de) * 1989-12-07 1991-06-13 Kirovogr Z Gidravliceskich Sil Hydraulische axialkolbenmaschine
EP0921312A2 (fr) * 1997-12-03 1999-06-09 Brueninghaus Hydromatik Gmbh Machine à pistons axiaux

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2101213A1 (de) * 1970-01-16 1971-09-16 Sperry Rand Corp , Troy, Mich (V St A) Axialkolbenpumpe oder motor
US3605565A (en) * 1970-03-13 1971-09-20 Sperry Rand Corp Power transmission
US3810419A (en) * 1972-11-16 1974-05-14 Abex Corp Adjustable fixed displacement hydraulic transducer apparatus
DE3940441A1 (de) * 1989-12-07 1991-06-13 Kirovogr Z Gidravliceskich Sil Hydraulische axialkolbenmaschine
EP0921312A2 (fr) * 1997-12-03 1999-06-09 Brueninghaus Hydromatik Gmbh Machine à pistons axiaux

Also Published As

Publication number Publication date
DE19909311A1 (de) 2000-09-28
EP1157211A1 (fr) 2001-11-28
WO2000052332A1 (fr) 2000-09-08
EP1157211B1 (fr) 2006-08-30
DE50013399D1 (de) 2006-10-12
DE19909311C2 (de) 2001-01-25
US6662707B1 (en) 2003-12-16

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