EP2510192A1 - Machine hydrostatique à pistons radiaux - Google Patents

Machine hydrostatique à pistons radiaux

Info

Publication number
EP2510192A1
EP2510192A1 EP10790918A EP10790918A EP2510192A1 EP 2510192 A1 EP2510192 A1 EP 2510192A1 EP 10790918 A EP10790918 A EP 10790918A EP 10790918 A EP10790918 A EP 10790918A EP 2510192 A1 EP2510192 A1 EP 2510192A1
Authority
EP
European Patent Office
Prior art keywords
radial
cylinder star
control
mirror body
control mirror
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.)
Granted
Application number
EP10790918A
Other languages
German (de)
English (en)
Other versions
EP2510192B1 (fr
Inventor
Jürgen Berbuer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP2510192A1 publication Critical patent/EP2510192A1/fr
Application granted granted Critical
Publication of EP2510192B1 publication Critical patent/EP2510192B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03C—POSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00—Reciprocating-piston liquid engines
    • F03C1/02—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders
    • F03C1/04—Reciprocating-piston liquid engines with multiple-cylinders, characterised by the number or arrangement of cylinders with cylinders in star or fan arrangement
    • F03C1/0403—Details, component parts specially adapted of such engines
    • F03C1/0435—Particularities relating to the distribution members
    • F03C1/0444—Particularities relating to the distribution members to plate-like distribution members
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/06—Control
    • F04B1/063—Control by using a valve in a system with several pumping chambers wherein the flow-path through the chambers can be changed, e.g. between series and parallel flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B13/00—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion
    • F01B13/04—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder
    • F01B13/06—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement
    • F01B13/061—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders
    • F01B13/062—Reciprocating-piston machines or engines with rotating cylinders in order to obtain the reciprocating-piston motion with more than one cylinder in star arrangement the connection of the pistons with the actuated or actuating element being at the outer ends of the cylinders cylinder block and actuating or actuated cam both rotating
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. valves
    • F04B1/0465—Distribution members, e.g. valves plate-like
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
    • 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
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/10—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary
    • F04B1/107—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders
    • F04B1/1071—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks
    • F04B1/1072—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement the cylinders being movable, e.g. rotary with actuating or actuated elements at the outer ends of the cylinders with rotary cylinder blocks with cylinder blocks and actuating cams rotating together

Definitions

  • control mirror body at radially extending separation level in the control cross sections ie in the interface between the control mirror body and cylinder star, disc-shaped and have only perpendicular to the axis of rotation extending end surfaces. Due to this design, a support during operation occurring radial forces on the control mirror body is impossible. The same applies to spherical see or conical / conical control mirror body, but can not transmit any radial forces on the housing or its cover for lack of appropriate storage.
  • the invention provides a remedy by the intermeshing of the cylinder star and the control disk body and their mounting in the housing or housing cover, which leads to a particularly high compressive strength of the radial piston engine according to the invention.
  • the cylinder star has at least one support region in which the axial width is smaller than in a free-wheeling region which adjoins the support region in the radial direction, wherein at least one control cross-section of the control-plate body is preferably located in the support region.
  • at least one control plate body has a support region corresponding to the support region of the cylinder star and a storage region facing away from the support region in the radial direction outwardly adjoining the support region and / or in the axial direction.
  • the respective control plate body is accommodated in a housing or housing cover, so that the forces introduced by the cylinder star into the control plate body can be dissipated further into the housing or the housing cover.
  • the support region preferably extends from a central torque coupling region (eg in the form of a multi-tooth bore or a journal) in the radial direction up to a diameter which is approximately 60% to 90%, preferably 70% to 80%, of the maximum diameter of the cylinder star.
  • a central torque coupling region eg in the form of a multi-tooth bore or a journal
  • the invention further ausgestaltend it is proposed that the cylinder star and at least one control mirror body in the axial direction patrizen-matrizen-shaped mesh.
  • a respective control mirror body is arranged on both sides of the cylinder star, one of them should be biased in the direction of the opposite control mirror body by means of a spring element supported on a housing or a housing cover, preferably a corrugated spring.
  • This provides axial gap compensation, i. Tightness, in the region of the separation plane between the control mirror body and the cylinder star, in particular in the area of the control cross sections achieved.
  • control channels of two opposing control mirror body and an interposed passageway of the cylinder star are aligned, preferably form a continuous cylindrical bore with a constant cross section.
  • the control channels are unused in a control disk body which is not used for hydraulic fluid supply or exhaust, but this is in no way disadvantageous.
  • each piston head of the piston is designed cup-shaped in longitudinal section and with no interposition of a separate sealing element a cup rim sealed to an internal ren shell surface of the respective bore of the cylinder star rests, wherein the pistons are preferably made of plastic and more preferably are plastic injection molded parts.
  • the cup rim has a depth seen in the axial direction of the piston and a thickness seen in the radial direction, which ensures that the fluid pressure in the working space, taking advantage of the component elasticity, ensures sufficient surface pressure between the cup rim outer casing and the bore casing surface.
  • FIG. 2a is an enlarged view of the cylinder star and the control disk body according to FIG. 2, FIG.
  • a radial piston machine 1 shown in FIGS. 1, 2 and 2a comprises a housing 2, which-viewed in the axial direction-is closed in a fluid-tight manner on one side with a housing cover 3.
  • a cam ring 4 is slidably mounted and along each two planar surfaces 5 and 6, which are formed on the one hand on an inner circumferential surface 7 of the housing 2 and on the other hand on an outer circumferential surface 8 of the cam ring.
  • the radial piston machine 1 has a rotor in the form of a so-called cylinder star 9, which is rotatable about a rotation axis 10.
  • the cylinder star 9 has nine bores 11 arranged equidistantly around its circumference, which, starting from an outer circumferential surface 12 of the cylinder star 9, penetrate radially into its interior, i. on the axis of rotation 10 to extend.
  • the axis of rotation 10 of the cylinder star 9 and the center axis of the cam ring 4 are arranged eccentrically to each other, wherein the (variable) amount of eccentricity the stroke of Piston 13 defined.
  • control mirror body 30 is located between a housing wall 31 and the cylinder star 9.
  • Another, substantially identical shaped control mirror body 32 is located on the opposite side of the cylinder star 9 and is bounded on its side facing away from the cylinder star 9 by a housing wall 33.
  • control channel 29, 34 in a cylinder star 9 facing end face of the control mirror body 30, 32 extends in a circular segment.
  • This known design makes it possible for the hydraulic fluid to flow into the respective working chamber 22 from the control channel 29 via a respective passageway 35 assigned to each cylinder bore 9 in the suction chamber during an intake phase extending over an angular range of approximately 150 °.
  • the flow connection between the control channel 29 assigned to the inlet channel 28 and the associated passage channel 35 ends, whereas at the next moment a connection exists between the further control channel 37 constructed like the control channel 29 and an outlet channel 36 the "pressure side" of the control mirror body 30 and the radial piston machine 1 is produced.
  • the cross sections of the control channels 29, 37, which are arranged in the respective separation planes between the control mirror body 30 and the cylinder star 9 are referred to as control cross sections 29 ', 37'.
  • Both Steueraptköper 30, 32 each have a conical-ring-shaped support portion 40, 41 which cooperates with a complementarily shaped, also cone-shaped support portion 42, 43 on the opposite end faces of the cylinder star 9. While the control channels 29, 37 and 34, 38, ie, in particular also the control cross sections 29 ', 37', are located in the support regions 40, 41 of the control plate bodies 30, 32, the control elements extend as through-holes. Passage holes executed passageways 35 in the mutual support areas 42 and 43 of the cylinder star. 9
  • Both control mirror bodies 30, 32 each have a central through-bore 44, 45 through which runs a drive shaft 46 of the radial piston machine 1.
  • a torque coupling region 47 of the cylinder star 9 is designed as a hexagon socket, in which a correspondingly adapted external hexagon of the drive shaft 46 is inserted in a rotationally fixed manner.
  • Both control plate bodies 30, 32 have a cylindrical-ring-shaped bearing region 48, 49 adjoining the respective support region 40, 41 in the radial direction, the outer lateral surface 50, 51 of which is respectively mounted in a matched recess in the housing 2 or the housing cover 3 is.
  • the cylinder star 9 has a - viewed in the radial direction - at the support areas 42 and 43 subsequent freewheeling 52, 53, in which between the respective end face 54, 55 of the cylinder star 9 and the opposite end face 56, 57 of the control mirror body 30, 32nd in each case a gap 58, 59 is located.
  • control mirror bodies 30, 32 with their conical-ring-shaped end faces forming the support regions 42, 43 extend beyond the planes formed by the end faces 54, 55 of the cylinder star 9 in the direction of a center plane 62 of the cylinder star perpendicular to the rotation axis 10 9 extend.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Reciprocating Pumps (AREA)
  • Hydraulic Motors (AREA)

Abstract

L'invention concerne une machine hydrostatique à pistons radiaux présentant une étoile de cylindres (9) avec des alésages de cylindres (11) qui partent d'une surface d'enveloppe extérieure de l'étoile de cylindres, s'étendent à l'intérieur de celle-ci et sont disposés de façon répartie sur son pourtour ; un nombre de pistons (13) correspondant au nombre des alésages de cylindres ; une bague de levage (4) disposée de façon excentrée par rapport à l'étoile de cylindres, qui entoure de façon périphérique l'étoile de cylindres et sur la surface d'enveloppe intérieure (17) de laquelle s'appuient de façon mobile des extrémités, opposées à l'étoile de cylindres, des pistons pendant le mouvement de rotation de l'étoile de cylindres ; et deux corps de miroir de commande (30, 32), qui s'étendent respectivement avec une surface frontale tournée vers l'étoile de cylindres sur un plan médian, perpendiculaire à l'axe de rotation, de l'étoile de cylindres au-delà d'un plan qui est défini par une surface frontale, tournée vers le corps de miroir de commande respectif, de l'étoile de cylindres à son emplacement présentant la plus grande largeur axiale. Chaque corps de miroir de commande présente une zone de palier, dans laquelle des forces agissant radialement peuvent être transmises à une contre-surface respective dans le boîtier (2) ou un couvercle de boîtier (3) montés dans celui-ci.
EP10790918.6A 2009-12-11 2010-12-07 Machine hydrostatique à pistons radiaux Active EP2510192B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009054548A DE102009054548A1 (de) 2009-12-11 2009-12-11 Hydrostatische Radialkolbenmaschine
PCT/EP2010/069078 WO2011070019A1 (fr) 2009-12-11 2010-12-07 Machine hydrostatique à pistons radiaux

Publications (2)

Publication Number Publication Date
EP2510192A1 true EP2510192A1 (fr) 2012-10-17
EP2510192B1 EP2510192B1 (fr) 2013-06-26

Family

ID=43662907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10790918.6A Active EP2510192B1 (fr) 2009-12-11 2010-12-07 Machine hydrostatique à pistons radiaux

Country Status (5)

Country Link
US (1) US9784252B2 (fr)
EP (1) EP2510192B1 (fr)
CN (1) CN102652206B (fr)
DE (2) DE102009054548A1 (fr)
WO (1) WO2011070019A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009054548A1 (de) 2009-12-11 2011-06-16 Berbuer, Jürgen, Dr.-Ing. Hydrostatische Radialkolbenmaschine
DE102011115272A1 (de) 2011-09-29 2013-04-04 Robert Bosch Gmbh Hydrostatische Radialkolbenmaschine
DE102012008623A1 (de) * 2012-04-28 2013-10-31 Robert Bosch Gmbh Radialkolbenmaschine
DE102014215255A1 (de) 2013-08-07 2015-02-12 Schaeffler Technologies Gmbh & Co. Kg Radialkolbenmaschine
WO2018205015A1 (fr) * 2017-05-06 2018-11-15 Kinetics Drive Solutions Inc. Variateur hydrostatique basé sur des machines à pistons radiaux
US10982670B2 (en) * 2019-01-22 2021-04-20 GM Global Technology Operations LLC Gear pump and gear assembly

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
US3122104A (en) * 1961-12-28 1964-02-25 Bendix Corp Balance ring for pulsating fluid machinery
US3951044A (en) * 1964-06-11 1976-04-20 Karl Eickmann Rotary radial piston machines with fluidflow supply in substantial axial direction
US3398698A (en) * 1964-06-11 1968-08-27 Eickmann Karl Rotary radial piston machine with fluid flow supply in substantial axial direction
DE1776238A1 (de) * 1965-05-31 1974-02-28 Breinlich Richard Dr Axial beaufschlagte rotationsfluidmaschine
DE1653371A1 (de) * 1966-12-08 1971-01-28 Breinlich Dr Richard Maschinen mit fluiddurchstroemten Arbeitskammern axialwaertiger Fluidbeaufschlagung
DE1812635C3 (de) 1968-12-04 1974-10-10 Danfoss A/S, Nordborg (Daenemark) Radialkolbenpumpe
CH604002A5 (fr) * 1974-11-02 1978-08-31 Danfoss As
US4624174A (en) * 1982-01-29 1986-11-25 Karl Eickmann Multiple stroke radial piston machine having plural banks of cylinders and fluid pressure pockets on the pistons
US5152579A (en) 1989-04-17 1992-10-06 Mccord Winn Textron Inc. Pumping system for the back support of a seat
EP0401408B1 (fr) 1989-06-08 1993-12-29 LuK Fahrzeug-Hydraulik GmbH & Co. KG Machine à pistons radiaux
DE4123674C2 (de) 1991-07-17 2002-07-11 Bosch Gmbh Robert Hydrostatische Kolbenmaschine
DE4123675A1 (de) 1991-07-17 1993-01-21 Bosch Gmbh Robert Hydrostatische kolbenmaschine
CN2103025U (zh) * 1991-09-29 1992-04-29 周其宁 双斜盘大流量柱塞油泵
DE102009054548A1 (de) 2009-12-11 2011-06-16 Berbuer, Jürgen, Dr.-Ing. Hydrostatische Radialkolbenmaschine

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011070019A1 *

Also Published As

Publication number Publication date
EP2510192B1 (fr) 2013-06-26
DE102009054548A1 (de) 2011-06-16
US20130145929A1 (en) 2013-06-13
US9784252B2 (en) 2017-10-10
DE202010013078U1 (de) 2011-02-24
CN102652206A (zh) 2012-08-29
WO2011070019A1 (fr) 2011-06-16
CN102652206B (zh) 2014-12-24

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