GB1384451A - Hydraulic motors - Google Patents

Hydraulic motors

Info

Publication number
GB1384451A
GB1384451A GB920972A GB920972A GB1384451A GB 1384451 A GB1384451 A GB 1384451A GB 920972 A GB920972 A GB 920972A GB 920972 A GB920972 A GB 920972A GB 1384451 A GB1384451 A GB 1384451A
Authority
GB
United Kingdom
Prior art keywords
supply
return
cam
inlet
lobes
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
Application number
GB920972A
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.)
Poclain SA
Original Assignee
Poclain SA
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 Poclain SA filed Critical Poclain SA
Publication of GB1384451A publication Critical patent/GB1384451A/en
Expired legal-status Critical Current

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
    • F03C1/0447—Controlling
    • F03C1/045—Controlling by using a valve in a system with several pump or motor chambers, wherein the flow path through the chambers can be changed, e.g. series-parallel
    • 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
    • F03C1/0409—Cams

Landscapes

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

Abstract

1384451 Reciprocating motors and pumps POCLAIN 29 Feb 1972 [2 March 1971] 9209/72 Heading F1A In a hydraulic motor of the type also operable as a pump and comprising a rotary cylinder block 10 mounted on a stationary pintle valve 17 and having radial pistons 15 with rollers 14 engaging a multi-lobed cam track, the lobes of the cam track comprise two groups 12, 13 of different radius arranged alternately around the track, the pintle valve having pairs of inlet and outlet ports 19, 20 and 21, 22 associated with the respective lobes 13, 12 and a hydraulically-actuated, threeposition slide valve 23 operable to provide three output speeds of the motor. The first position of the slide valve connects the cylinders associated with the respective groups of cam lobes in parallel to the supply and return connections, Fig.1 (not shown). The second position connects the inlet and outlet ports corresponding to the cylinders associated with the larger stroke cam group to the supply and return respectively, and the inlet and outlet ports associated with the smaller stroke cam group to the return and supply respectively, Fig.2 (not shown). The third position connects the inlets and outlets associated with the larger stroke cam group to the supply and return respectively, and the inlets and outlets associated with the smaller stroke cam group to the supply, Fig.3 (not shown). To provide for reverse station in one of the slide valve positions, the larger and smaller stroke cam positions are interchanged.
GB920972A 1971-03-02 1972-02-29 Hydraulic motors Expired GB1384451A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7107153A FR2127268A5 (en) 1971-03-02 1971-03-02

Publications (1)

Publication Number Publication Date
GB1384451A true GB1384451A (en) 1975-02-19

Family

ID=9072754

Family Applications (1)

Application Number Title Priority Date Filing Date
GB920972A Expired GB1384451A (en) 1971-03-02 1972-02-29 Hydraulic motors

Country Status (8)

Country Link
US (1) US3808951A (en)
JP (1) JPS5738788B1 (en)
BE (1) BE779698A (en)
DE (1) DE2209152A1 (en)
ES (1) ES400345A1 (en)
FR (1) FR2127268A5 (en)
GB (1) GB1384451A (en)
IT (1) IT952886B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532854A (en) * 1982-12-24 1985-08-06 Renold Plc, A British Company of Renold House Selectively operative multi-displacement pump or motor

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2365041A1 (en) * 1976-09-21 1978-04-14 Poclain Hydraulics Sa MULTI-CYLINDER HYDRAULIC MECHANISM
DE2847952A1 (en) * 1978-11-04 1980-05-08 Rexroth Gmbh G L HYDRAULIC AXIAL PISTON ENGINE
US4318336A (en) * 1980-04-24 1982-03-09 Rudolf Bock Hydraulic motor
FR2481755A1 (en) * 1980-04-30 1981-11-06 Poclain Hydraulics Sa PRESSURIZED FLUID MOTOR WITH ROTATION SPEED SELECTION DEVICE
FR2526497B1 (en) * 1982-05-10 1986-04-18 Mo N Proizv AXIAL HYDRAULIC MACHINE WITH ROTARY PISTON
JPS60182365A (en) * 1984-02-28 1985-09-17 Nippon Denso Co Ltd Radial plunger pump
DE3706460A1 (en) * 1986-10-31 1988-09-08 Rexroth Mannesmann Gmbh PISTON MACHINE WITH SWITCHABLE LIFTING SPACE
FR2611816B1 (en) * 1987-02-25 1989-07-13 Poclain Hydraulics Sa MULTI-CYLINDER PRESSURE FLUID MECHANISM, MOTOR OR PUMP
US5106347A (en) * 1988-11-08 1992-04-21 Nissan Motor Co., Ltd. Rotational speed differential responsive type torque transmitting assembly with variable orifice means
FR2661456B1 (en) * 1990-04-26 1992-08-14 Poclain Hydraulics Sa PRESSURE FLUID MECHANISM, SUCH AS A MOTOR OR A HYDRAULIC PUMP, WITH MULTIPLE OPERATING CYLINDERS.
FR2678322B1 (en) * 1991-06-25 1993-10-29 Poclain Hydraulics Sa PRESSURE FLUID MECHANISM COMPRISING AT LEAST TWO SEPARATE OPERATING CYLINDERS.
DE4127751C1 (en) * 1991-08-22 1992-11-12 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
DE19733911C1 (en) * 1997-08-05 1998-07-16 Mannesmann Rexroth Ltd Hydrostatic motor with fluid circulation in housing
DE19749906A1 (en) * 1997-11-12 1999-05-20 Halm Peter Radial piston hydromotor
JPH11349594A (en) * 1998-06-08 1999-12-21 Shin Etsu Chem Co Ltd Production of short-chained polysulfidesilane mixture
DE10244262B4 (en) * 2002-09-24 2011-04-28 Linde Material Handling Gmbh Multi-stroke hydrostatic displacement machine with infinitely variable displacement
ITMO20020287A1 (en) * 2002-10-02 2004-04-03 I Societa Apparecchiature Idra Uliche Spa Sa HYDRAULIC MACHINE WITH HIGH PERFORMANCE RADIAL CYLINDERS.
FR2881173A1 (en) * 2005-01-27 2006-07-28 Ericab Sarl Volumetric rotating machine e.g. compressor, has spools with cylinders and pistons mounted movable in rotation around articulation axles, and connected by connecting rod ensuring homokinetic rotation of spools around axes of rotation
DE102010053977A1 (en) * 2010-12-09 2012-06-14 Rheinisch-Westfälische Technische Hochschule Aachen Control shaft for radial piston motor, has openings formed in cylinder inner wall, where selected number of openings are connected with high and/or low pressure regions of cylinder chamber by axial displacement of piston
FR3043433B1 (en) 2015-11-10 2017-12-08 Poclain Hydraulics Ind DISPENSING DEVICE FOR A HYDRAULIC MACHINE AND HYDRAULIC MACHINE EQUIPPED WITH SUCH A DEVICE
EP4102051A1 (en) * 2021-06-07 2022-12-14 Robert Bosch GmbH Multi piston machine with at least three switchable displacement volumes

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2442125A (en) * 1944-02-02 1948-05-25 Gunning Maximiliaan Frederik Hydraulic motor and control therefor
US2650543A (en) * 1944-10-28 1953-09-01 Installation Et D App Soc D High-pressure radial piston pump for liquids
US2562363A (en) * 1948-02-05 1951-07-31 Vickers Inc Compound fluid motor unit
FR1411046A (en) * 1964-06-03 1965-09-17 Poclain Sa Improvements to hydraulic motors with rotary cylinder block
US3357312A (en) * 1964-08-13 1967-12-12 Inst Gornogo Dela Imeni Skochi Radial-piston hydraulic motor
US3296937A (en) * 1965-05-28 1967-01-10 Poclain Sa Speed change device for an hydraulic motor
FR1460752A (en) * 1965-10-08 1966-01-07 Poclain Sa Method and device for changing gear for a hydraulic motor
FR1563866A (en) * 1968-02-07 1969-04-18

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4532854A (en) * 1982-12-24 1985-08-06 Renold Plc, A British Company of Renold House Selectively operative multi-displacement pump or motor

Also Published As

Publication number Publication date
US3808951A (en) 1974-05-07
DE2209152A1 (en) 1972-09-21
ES400345A1 (en) 1975-07-16
IT952886B (en) 1973-07-30
BE779698A (en) 1972-06-16
JPS5738788B1 (en) 1982-08-17
FR2127268A5 (en) 1972-10-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee
PE20 Patent expired after termination of 20 years