GB1019294A - Hydraulic pump or motor - Google Patents

Hydraulic pump or motor

Info

Publication number
GB1019294A
GB1019294A GB37862/62A GB3786262A GB1019294A GB 1019294 A GB1019294 A GB 1019294A GB 37862/62 A GB37862/62 A GB 37862/62A GB 3786262 A GB3786262 A GB 3786262A GB 1019294 A GB1019294 A GB 1019294A
Authority
GB
United Kingdom
Prior art keywords
piston
cylinders
passages
cylinder
motor
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
GB37862/62A
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.)
Stewart Warner Corp
Original Assignee
Stewart Warner Corp
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
Priority to US143476A priority Critical patent/US3211107A/en
Application filed by Stewart Warner Corp filed Critical Stewart Warner Corp
Publication of GB1019294A publication Critical patent/GB1019294A/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03CPOSITIVE-DISPLACEMENT ENGINES DRIVEN BY LIQUIDS
    • F03C1/00Reciprocating-piston liquid engines
    • F03C1/22Reciprocating-piston liquid engines with movable cylinders or cylinder
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01BMACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B15/00Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00
    • F01B15/02Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00 with reciprocating cylinders

Abstract

1,019,294. Reciprocating pumps and motors. STEWART-WARNER CORPORATION. Oct. 5, 1962 [Oct. 6, 1961], No. 37862/62. Heading F1A. An hydraulic pump or motor comprises a cruciform piston member whose arms 26 engage in cylinder members 18 which are free to slide on shoes 50, fixed to the casing 10. The piston member is mounted on an eccentric 28 on a shaft 30. Inlet ports 34 and outlet ports 36 alternately open into or are shut off from each cylinder space 32 by the movement of the member 18. Liquid from the cylinder space 32 is fed via restricted passages 42 (Fig. 2, not shown) to the spaces between the relatively moving surfaces of the eccentric 28 and piston member and between the cylinder member 18 and shoe member 50. These areas of sliding contact are larger than the piston area and are substantially symmetrical about the longitudinal axis of the corresponding arm 26. These areas are related to the passages 42 to give a predetermined thickness of lubricant and under varying flow conditions the passages 42 oppose changes of film thickness by causing corresponding inverse changes in the average film pressure. The pump or motor unit may comprise more than one bank of cylinders. One bank may be rotatable relative to the other and the cylinders interconnected so that the output may be varied from a maximum to zero when the cylinders are 180 degrees out of phase to each other.
GB37862/62A 1961-10-06 1962-10-05 Hydraulic pump or motor Expired GB1019294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US143476A US3211107A (en) 1961-10-06 1961-10-06 Hydraulic pump or motor

Publications (1)

Publication Number Publication Date
GB1019294A true GB1019294A (en) 1966-02-02

Family

ID=22504250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37862/62A Expired GB1019294A (en) 1961-10-06 1962-10-05 Hydraulic pump or motor

Country Status (3)

Country Link
US (1) US3211107A (en)
CH (1) CH403490A (en)
GB (1) GB1019294A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5122644B1 (en) * 1970-12-30 1976-07-12
US3777622A (en) * 1972-03-24 1973-12-11 Gen Motors Corp Pumps and motors
US4280798A (en) * 1979-01-24 1981-07-28 Gurley James R Work machine
US4597403A (en) * 1983-03-14 1986-07-01 Milburn Jr William W Nutation valving apparatus and method of operation
GB9322451D0 (en) * 1993-10-30 1993-12-22 Mccombie Alan K Improved positive displacement pump
DE4412846A1 (en) * 1994-04-14 1995-10-19 Heinrich Franke Piston=cylinder unit for pumps and engines

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR554287A (en) * 1923-06-08
US580838A (en) * 1897-04-20 Rotary engine
US388522A (en) * 1888-08-28 beauchemin
US360057A (en) * 1887-03-29 Geoege smith
US1082224A (en) * 1912-04-23 1913-12-23 Desire Crayssac Rotary valveless motor.
US1455753A (en) * 1919-11-12 1923-05-15 Taylorwharton Iron And Steel C Hydraulic pump or motor
CH96030A (en) * 1921-02-03 1922-09-01 Coats Allan Hydraulic clutch.
US1757483A (en) * 1923-10-12 1930-05-06 Hele-Shaw Henry Selby Means for the hydraulic transmission of power
US1630953A (en) * 1925-10-19 1927-05-31 Ingersoll Rand Co Fluid-actuated engine
GB321313A (en) * 1928-10-24 1929-11-07 Ralph John Smith Improvements in hydraulic pumps & motors
US2013862A (en) * 1935-01-19 1935-09-10 Frank E Mandel Compressor
US2130037A (en) * 1936-01-23 1938-09-13 Skarlund Carl Axel Fluid machine
US2347663A (en) * 1939-11-02 1944-05-02 Orson A Carnahan Hydraulically balanced bearing
US2561519A (en) * 1946-11-27 1951-07-24 Leech Lawrence Variable-output hydraulic pump
US2573472A (en) * 1947-01-08 1951-10-30 Martin Jean Automatic and progressive changespeed gear
US2679210A (en) * 1947-09-18 1954-05-25 Schweizerische Lokomotiv Expansible chamber type radial piston engine
BE484960A (en) * 1947-09-22
GB764698A (en) * 1954-02-25 1957-01-02 Ruben Hadekel Improvements in or relating to piston pumps or motors
US2833225A (en) * 1954-08-25 1958-05-06 Motor Products Corp Hydraulic pump structure
GB827756A (en) * 1956-12-27 1960-02-10 Dowty Hydraulic Units Ltd Improvements in and relating to multi-cylinder hydraulic pumps
US2851952A (en) * 1957-06-27 1958-09-16 Lane Edwin Leonard Hydraulic pumps
US2981201A (en) * 1957-09-10 1961-04-25 Holdener Simeon Piston machine
GB819570A (en) * 1958-04-25 1959-09-02 Ford Motor Co Improvements in or relating to hydrostatic transmissions
FR1240080A (en) * 1959-07-23 1960-09-02 Rech Etudes Production Sarl Hydraulic star cylinder pump for high pressures and high rpm

Also Published As

Publication number Publication date
US3211107A (en) 1965-10-12
CH403490A (en) 1965-11-30

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