FR2368619A1 - Ensemble contre-came-piston pour machine hydrostatique - Google Patents

Ensemble contre-came-piston pour machine hydrostatique

Info

Publication number
FR2368619A1
FR2368619A1 FR7731772A FR7731772A FR2368619A1 FR 2368619 A1 FR2368619 A1 FR 2368619A1 FR 7731772 A FR7731772 A FR 7731772A FR 7731772 A FR7731772 A FR 7731772A FR 2368619 A1 FR2368619 A1 FR 2368619A1
Authority
FR
France
Prior art keywords
cam
ball
sealed joint
piston
pressed against
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Withdrawn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
FR7731772A
Other languages
English (en)
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.)
Automotive Products PLC
Original Assignee
Automotive Products PLC
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 Automotive Products PLC filed Critical Automotive Products PLC
Publication of FR2368619A1 publication Critical patent/FR2368619A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F04B1/04—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
    • F04B1/0408—Pistons
    • 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
    • F04B1/0413—Cams
    • 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

Landscapes

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

Abstract

Cet ensemble contre-came-piston est destiné à une machine hydrostatique du type dans lequel plusieurs contre-cames à mouvements alternatifs sont logées dans un rotor 27 et appuyées sur un chemin de roulement 28 formant came. Chaque contre-came comprend un piston étagé il et une bille 12. Une première extrémité 13 du piston 11 possède une face terminale 15 exposée à la pression hydraulique et coulisse à joint étanche dans l'alésage 14 du cylindre 25, tandis que l'autre partie 17 du piston présente dans sa face terminale une alvéole 18 qui reçoit la bille 12 destinée à s'appuyer sur la came 28. Le piston 11 présente un passage 22 qui relie la face terminale 15 à la surface intérieure 26 de l'alvéole 18 pour exposer une grande partie de la surface de la bille à la pression; la bille 12 est montée à joint étanche dans l'alvéole 18 de sorte qu'on obtient un équilibre hydrostatique presque parfait entre le piston et la bille. Ces contre-cames sont particulièrement utilisables dans les moteurs hydrostatiques qui produisent une sortie à couple constant.
FR7731772A 1976-10-21 1977-10-21 Ensemble contre-came-piston pour machine hydrostatique Withdrawn FR2368619A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4364976 1976-10-21

Publications (1)

Publication Number Publication Date
FR2368619A1 true FR2368619A1 (fr) 1978-05-19

Family

ID=10429703

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7731772A Withdrawn FR2368619A1 (fr) 1976-10-21 1977-10-21 Ensemble contre-came-piston pour machine hydrostatique

Country Status (2)

Country Link
JP (1) JPS5351505A (fr)
FR (1) FR2368619A1 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046691A2 (fr) * 1980-08-26 1982-03-03 Staffa Products Limited Moteur hydraulique
DE3121530A1 (de) * 1981-05-29 1982-12-23 Alfred Teves Gmbh, 6000 Frankfurt Radialkolbenmaschine, insbesondere kugelkolbenpumpe
DE3121531A1 (de) * 1981-05-29 1983-01-27 Alfred Teves Gmbh, 6000 Frankfurt Radialkolbenmaschine, insbesondere kugelkolbenpumpe
FR2527751A1 (fr) * 1982-05-26 1983-12-02 Girette Bernard Dispositif generateur de chaleur a pompe hydraulique
US4555223A (en) * 1981-05-29 1985-11-26 Itt Industries, Inc. Radial piston machine
DE3439209A1 (de) * 1984-10-26 1986-04-30 Alfred Teves Gmbh, 6000 Frankfurt Radialkolbenmaschine, insbesondere kugelkolbenpumpe
EP0335535A1 (fr) * 1988-03-28 1989-10-04 Hobourn Technology Limited Pompes à déplacement positif
FR2669682A1 (fr) * 1990-11-24 1992-05-29 Rexroth Mannesmann Gmbh Moteur a pistons radiaux, dote d'un systeme perfectionne de guidage et d'etanchement des pistons.
WO1998014722A1 (fr) * 1996-10-02 1998-04-09 Jurij Manfreda Ensemble piston pour moteur a pistons hydrauliques radiaux
WO2001081727A1 (fr) 2000-04-21 2001-11-01 Jurij Manfreda Ensemble piston pour moteur hydraulique à pistons radiaux
WO2007113449A1 (fr) * 2006-04-05 2007-10-11 Poclain Hydraulics Industrie Piston pour un moteur hydraulique à pistons radiaux et son procédé de fabrication
WO2012010261A3 (fr) * 2010-07-23 2012-04-26 Robert Bosch Gmbh Unité piston
EP2679817A1 (fr) * 2012-06-25 2014-01-01 Bell Helicopter Textron Inc. Dispositif à fluide radial variable avec commande de piston différentiel
US9303638B2 (en) 2012-06-25 2016-04-05 Bell Helicopter Textron Inc. Variable radial fluid devices in series
US9399984B2 (en) 2012-06-25 2016-07-26 Bell Helicopter Textron Inc. Variable radial fluid device with counteracting cams

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0046691A2 (fr) * 1980-08-26 1982-03-03 Staffa Products Limited Moteur hydraulique
EP0046691A3 (fr) * 1980-08-26 1982-03-31 Staffa Products Limited Moteur hydraulique
DE3121530A1 (de) * 1981-05-29 1982-12-23 Alfred Teves Gmbh, 6000 Frankfurt Radialkolbenmaschine, insbesondere kugelkolbenpumpe
DE3121531A1 (de) * 1981-05-29 1983-01-27 Alfred Teves Gmbh, 6000 Frankfurt Radialkolbenmaschine, insbesondere kugelkolbenpumpe
US4555223A (en) * 1981-05-29 1985-11-26 Itt Industries, Inc. Radial piston machine
FR2527751A1 (fr) * 1982-05-26 1983-12-02 Girette Bernard Dispositif generateur de chaleur a pompe hydraulique
DE3439209A1 (de) * 1984-10-26 1986-04-30 Alfred Teves Gmbh, 6000 Frankfurt Radialkolbenmaschine, insbesondere kugelkolbenpumpe
EP0335535A1 (fr) * 1988-03-28 1989-10-04 Hobourn Technology Limited Pompes à déplacement positif
FR2669682A1 (fr) * 1990-11-24 1992-05-29 Rexroth Mannesmann Gmbh Moteur a pistons radiaux, dote d'un systeme perfectionne de guidage et d'etanchement des pistons.
US6276261B1 (en) 1996-10-02 2001-08-21 Jurij Manfreda Piston assembly of a hydraulic radial piston-type machine
WO1998014722A1 (fr) * 1996-10-02 1998-04-09 Jurij Manfreda Ensemble piston pour moteur a pistons hydrauliques radiaux
WO2001081727A1 (fr) 2000-04-21 2001-11-01 Jurij Manfreda Ensemble piston pour moteur hydraulique à pistons radiaux
US6834575B2 (en) 2000-04-21 2004-12-28 Jurij Manfreda Piston assembly for a radial piston hydraulic motor
US8146483B2 (en) 2006-04-05 2012-04-03 Poclain Hydraulics Industrie Piston for radial piston hydraulic engine and method for making same
FR2899650A1 (fr) * 2006-04-05 2007-10-12 Poclain Hydraulics Ind Soc Par Piston pour un moteur hydraulique a pistons radiaux et son procede de fabrication
CN101460740A (zh) * 2006-04-05 2009-06-17 波克莱恩液压工业公司 用于径向活塞液压马达的活塞及该活塞的制造方法
WO2007113449A1 (fr) * 2006-04-05 2007-10-11 Poclain Hydraulics Industrie Piston pour un moteur hydraulique à pistons radiaux et son procédé de fabrication
CN101460740B (zh) * 2006-04-05 2012-10-24 波克莱恩液压工业公司 用于径向活塞液压马达的活塞及该活塞的制造方法
WO2012010261A3 (fr) * 2010-07-23 2012-04-26 Robert Bosch Gmbh Unité piston
EP2679817A1 (fr) * 2012-06-25 2014-01-01 Bell Helicopter Textron Inc. Dispositif à fluide radial variable avec commande de piston différentiel
US9228571B2 (en) 2012-06-25 2016-01-05 Bell Helicopter Textron Inc. Variable radial fluid device with differential piston control
US9303638B2 (en) 2012-06-25 2016-04-05 Bell Helicopter Textron Inc. Variable radial fluid devices in series
US9399984B2 (en) 2012-06-25 2016-07-26 Bell Helicopter Textron Inc. Variable radial fluid device with counteracting cams

Also Published As

Publication number Publication date
JPS5351505A (en) 1978-05-11

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