EP0046691A3 - Improvements in and relating to hydraulic motors - Google Patents

Improvements in and relating to hydraulic motors Download PDF

Info

Publication number
EP0046691A3
EP0046691A3 EP81303879A EP81303879A EP0046691A3 EP 0046691 A3 EP0046691 A3 EP 0046691A3 EP 81303879 A EP81303879 A EP 81303879A EP 81303879 A EP81303879 A EP 81303879A EP 0046691 A3 EP0046691 A3 EP 0046691A3
Authority
EP
European Patent Office
Prior art keywords
recesses
cam
cam follower
follower rollers
axial
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Withdrawn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
EP81303879A
Other languages
German (de)
French (fr)
Other versions
EP0046691A2 (en
Inventor
Peter John Chapple
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.)
STAFFA PRODUCTS Ltd
Original Assignee
STAFFA PRODUCTS Ltd
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 STAFFA PRODUCTS Ltd filed Critical STAFFA PRODUCTS Ltd
Publication of EP0046691A2 publication Critical patent/EP0046691A2/en
Publication of EP0046691A3 publication Critical patent/EP0046691A3/en
Withdrawn legal-status Critical Current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
    • F03C1/22—Reciprocating-piston liquid engines with movable cylinders or cylinder
    • F03C1/24—Reciprocating-piston liquid engines with movable cylinders or cylinder in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders
    • 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
    • F03C1/0428—Supporting and guiding means for the pistons

Abstract

In a hydraulic motor of the kind comprising radial pistons (5) having cam followers (8) for engagement with a circumferential cam track, the cam followers (8) comprise rollers of which the axial length substantially corresponds to the diameter of the pistons (5), and the cylinders (4) of the motor are provided with radial recesses (4A) to accommo­ date the axial ends of the cam follower rollers (8). Guide means (10) for the end faces of the cam follower rollers (8) are provided at the ends of the recesses (4A). The recesses (4A) may comprise transverse slots in the rotor (1), the latter being recessed to receive two axial end rings (10) providing the guide means for the end faces of the cam follower rollers (8).
EP81303879A 1980-08-26 1981-08-25 Improvements in and relating to hydraulic motors Withdrawn EP0046691A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8027617A GB2086991A (en) 1980-08-26 1980-08-26 Improvements in and relating to hydraulic motors
GB8027617 1980-08-26

Publications (2)

Publication Number Publication Date
EP0046691A2 EP0046691A2 (en) 1982-03-03
EP0046691A3 true EP0046691A3 (en) 1982-03-31

Family

ID=10515655

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81303879A Withdrawn EP0046691A3 (en) 1980-08-26 1981-08-25 Improvements in and relating to hydraulic motors

Country Status (3)

Country Link
EP (1) EP0046691A3 (en)
JP (1) JPS57119173A (en)
GB (1) GB2086991A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE456517B (en) * 1982-09-08 1988-10-10 Hegglund & Soner Ab HYDRAULIC RADIAL PISTON ENGINE
FI73789C (en) * 1983-12-07 1987-11-09 Partek Ab HYDRAULISK MOTOR.
DE3531632A1 (en) * 1985-09-05 1987-03-12 Rexroth Mannesmann Gmbh RADIAL PISTON MACHINE
FR2651836B1 (en) * 1989-09-14 1994-06-10 Poclain Hydraulics Sa MECHANISM, MOTOR OR PUMP, WITH PISTONS SUPPORTING ROLLERS FOR SUPPORTING SAID PISTONS ON A CAM.
DE4004932C2 (en) * 1990-02-16 1995-04-13 Rexroth Mannesmann Gmbh Radial piston machine
JPH0776077B2 (en) * 1992-10-21 1995-08-16 株式会社川崎機械製作所 Hydraulic motor for winding and unwinding drive of wire rope and driving method
DE4313025A1 (en) * 1993-04-21 1994-10-27 Zahnradfabrik Friedrichshafen Hydrostatic-mechanical gear for driving a mixing drum
DE19810372A1 (en) * 1998-03-10 1999-09-16 Mannesmann Rexroth Ag Roller support for pistons of radial IC engine
DE19832696A1 (en) * 1998-07-21 2000-01-27 Mannesmann Rexroth Ag Radial piston machine with roller guides, with one of two roller guides for one roller fixed directly, without auxiliary parts, to the cylinder block so that it cannot rotate
DE102005054873B4 (en) * 2005-11-15 2007-08-09 Weber-Hydraulik Gmbh Hydraulic pump
CN102493913B (en) * 2011-12-13 2015-05-13 宁波德辰液压科技有限公司 Shell turn type inner-curve radial plunger hydraulic motor
FR3010744B1 (en) * 2013-09-16 2015-09-18 Poclain Hydraulics Ind IMPROVED CYLINDER BLOCK FOR HYDRAULIC MACHINE HAVING OPTIMIZED RADIAL SIZE
KR101811422B1 (en) * 2016-10-20 2017-12-21 박영선 Fluid Motor
EP3460229B1 (en) * 2016-11-18 2021-05-05 Qinhuangdao Zenmax Hydraulic Equipments Co., Ltd. Internally curved low-speed high-torque hydraulic motor with torque being output by means of rotation of housing
CN108301964A (en) * 2018-04-04 2018-07-20 上海波赫驱动系统有限公司 A kind of inner curve radial plunger type motor rotor assembly
CN110242353B (en) * 2019-07-17 2024-03-15 顾新钿 Pneumatic motor
FR3136519A1 (en) * 2022-06-13 2023-12-15 Poclain Hydraulics Industrie Enhanced Flow Hydraulic Machine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB164180A (en) * 1920-03-24 1921-06-09 Harry Ralph Ricardo Improvements in or relating to rotary pumps or compressors
GB187227A (en) * 1921-10-12 1923-12-27 Wladimir De Wasmundt Improvements in tangential cylinder engines
GB1220146A (en) * 1968-07-19 1971-01-20 Davy & United Eng Co Ltd Hydraulic motor
FR2196674A5 (en) * 1972-08-16 1974-03-15 Newage Engineers Ltd
DE2332580A1 (en) * 1973-06-27 1975-01-02 Wepuko Hydraulik Gmbh Hydraulic radial piston pump - has piston plunger guided in gudgeon pin sliding in shoes
GB1391592A (en) * 1971-05-19 1975-04-23 Contractors Plant London Midla Fluidpressure eg hydraulic motors
FR2368619A1 (en) * 1976-10-21 1978-05-19 Automotive Prod Co Ltd Hydrostatic cam and piston assembly - has ball pressed against recess wall to form sealed joint

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB164180A (en) * 1920-03-24 1921-06-09 Harry Ralph Ricardo Improvements in or relating to rotary pumps or compressors
GB187227A (en) * 1921-10-12 1923-12-27 Wladimir De Wasmundt Improvements in tangential cylinder engines
GB1220146A (en) * 1968-07-19 1971-01-20 Davy & United Eng Co Ltd Hydraulic motor
GB1391592A (en) * 1971-05-19 1975-04-23 Contractors Plant London Midla Fluidpressure eg hydraulic motors
FR2196674A5 (en) * 1972-08-16 1974-03-15 Newage Engineers Ltd
DE2332580A1 (en) * 1973-06-27 1975-01-02 Wepuko Hydraulik Gmbh Hydraulic radial piston pump - has piston plunger guided in gudgeon pin sliding in shoes
FR2368619A1 (en) * 1976-10-21 1978-05-19 Automotive Prod Co Ltd Hydrostatic cam and piston assembly - has ball pressed against recess wall to form sealed joint

Also Published As

Publication number Publication date
JPS57119173A (en) 1982-07-24
GB2086991A (en) 1982-05-19
EP0046691A2 (en) 1982-03-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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PUAL Search report despatched

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Effective date: 19820925

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18W Application withdrawn

Withdrawal date: 19830421

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CHAPPLE, PETER JOHN