GB1019294A - Hydraulic pump or motor - Google Patents
Hydraulic pump or motorInfo
- 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
- cylinders
- passages
- cylinder
- piston member
- eccentric
- 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
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
-
- 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
- F01B15/00—Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00
- F01B15/02—Reciprocating-piston machines or engines with movable cylinders other than provided for in group F01B13/00 with reciprocating cylinders
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
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.
Applications Claiming Priority (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 (8)
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 |
CN108104712B (en) * | 2018-01-05 | 2024-03-19 | 曾卫林 | Recoil type bladeless downhole power unit and recoil type bladeless downhole power drilling tool |
CN117189456B (en) * | 2023-11-07 | 2024-04-16 | 华侨大学 | Radial plunger hydraulic device based on sliding sleeve reversing and working method |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR554287A (en) * | 1923-06-08 | |||
US388522A (en) * | 1888-08-28 | beauchemin | ||
US360057A (en) * | 1887-03-29 | Geoege smith | ||
US580838A (en) * | 1897-04-20 | Rotary engine | ||
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 |
US2675763A (en) * | 1947-09-22 | 1954-04-20 | Hydrauuc radial engine | |
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 |
-
1961
- 1961-10-06 US US143476A patent/US3211107A/en not_active Expired - Lifetime
-
1962
- 1962-10-05 GB GB37862/62A patent/GB1019294A/en not_active Expired
- 1962-10-05 CH CH1174762A patent/CH403490A/en unknown
Also Published As
Publication number | Publication date |
---|---|
US3211107A (en) | 1965-10-12 |
CH403490A (en) | 1965-11-30 |
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