GB1077844A - Hydraulic power units - Google Patents
Hydraulic power unitsInfo
- Publication number
- GB1077844A GB1077844A GB31191/64A GB3119164A GB1077844A GB 1077844 A GB1077844 A GB 1077844A GB 31191/64 A GB31191/64 A GB 31191/64A GB 3119164 A GB3119164 A GB 3119164A GB 1077844 A GB1077844 A GB 1077844A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- pressure
- piston
- swashplate
- fluid
- 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
- 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
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/10—Control of working-fluid admission or discharge peculiar thereto
- F01B3/103—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block
- F01B3/106—Control of working-fluid admission or discharge peculiar thereto for machines with rotary cylinder block by changing the inclination of the swash plate
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/08—Regulating by delivery pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Control Of Fluid Gearings (AREA)
- Hydraulic Motors (AREA)
Abstract
1,077,844. Fluid-pressure servomotor systems. AMERICAN BRAKE SHOE CO. Aug. 4, 1964 [Aug.9, 1963], No.31191/64. Heading G3P. A torque control apparatus for a swashplate pump or motor comprises a valve 84 loaded by springs 95, 103 towards the right and controlling the supply and exhaust of fluid through a passage B to act through ports 114 on a piston 86. The swashplate is adjusted by a lever 60 and the highpressure line is connected to a groove 93 and flows past grooves on the right hand load of valve 84 to act to move the valve to the left. When the back-pressure in the high-pressure line increases due to an increased load, the valve 84 moves to the left against the spring-loading and supplies fluid to act on piston 86. Movement of the piston 86 to the right reduces the angle of the swashplate to reduce volume of delivery and increase the delivery pressure. This adjustment compresses the springs 103, 95 to recentre the valve 84. A decrease in pressure moves the valve 84 to the right and fluid from the piston 86 escapes past grooves in the left hand load of valve 84. The valve seat 78 is adjustable to vary the setting of the swashplate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US301092A US3250227A (en) | 1963-08-09 | 1963-08-09 | Torque control apparatus for hydraulic power units |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1077844A true GB1077844A (en) | 1967-08-02 |
Family
ID=23161909
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB31191/64A Expired GB1077844A (en) | 1963-08-09 | 1964-08-04 | Hydraulic power units |
Country Status (3)
Country | Link |
---|---|
US (1) | US3250227A (en) |
DE (1) | DE1453428A1 (en) |
GB (1) | GB1077844A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015069A1 (en) * | 1979-02-21 | 1980-09-03 | General Signal Corporation | Fluid actuated constant output power control for variable delivery pump |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH440988A (en) * | 1965-08-27 | 1967-07-31 | Von Roll Ag | Hydraulic control device |
US3489094A (en) * | 1966-08-16 | 1970-01-13 | Donald R Vaughan | Pressure responsive control apparatus |
DE1653811A1 (en) * | 1967-08-23 | 1971-05-19 | Bosch Gmbh Robert | Displacement pump |
FR1563864A (en) * | 1968-02-07 | 1969-04-18 | ||
BE757640A (en) * | 1969-10-16 | 1971-04-16 | Borg Warner | HYDRAULIC SYSTEMS, ESPECIALLY FOR THE REGULATION OF A VARIABLE FLOW PUMP |
US3740167A (en) * | 1970-06-23 | 1973-06-19 | D Albrecht | Hydraulic system |
USRE32403E (en) * | 1970-08-03 | 1987-04-21 | Dana Corporation | Fluid device having interchangeable displacement control means |
US3784328A (en) * | 1972-06-13 | 1974-01-08 | Sperry Rand Corp | Power transmission |
US3784327A (en) * | 1972-06-13 | 1974-01-08 | Sperry Rand Corp | Power transmission |
US3788077A (en) * | 1972-07-13 | 1974-01-29 | Borg Warner | Open center control of variable pumps |
US3864063A (en) * | 1973-09-11 | 1975-02-04 | Cessna Aircraft Co | Automatic torque limitation control |
CA1012840A (en) * | 1974-03-29 | 1977-06-28 | William J. Benson | Fluid energy translating device |
DE3034115A1 (en) * | 1980-09-11 | 1982-05-19 | Mannesmann Rexroth GmbH, 8770 Lohr | PERFORMANCE CONTROLLER |
US4715788A (en) * | 1982-12-16 | 1987-12-29 | Abex Corporation | Servo control variable displacement pressure compensated pump |
DE3733083A1 (en) * | 1987-09-30 | 1989-04-13 | Linde Ag | ADJUSTABLE AXIAL PISTON MACHINE IN SWASHING DISC DESIGN |
EP1013928A3 (en) | 1998-12-22 | 2000-11-08 | Parker Hannifin GmbH | Swash plate axial piston pump with pulsation damping means |
US6629822B2 (en) | 2000-11-10 | 2003-10-07 | Parker Hannifin Corporation | Internally supercharged axial piston pump |
FI118233B (en) * | 2003-04-01 | 2007-08-31 | Sampo Hydraulics Oy | Radial piston hydraulic motor and method for adjusting radial piston hydraulic motor |
US7278263B1 (en) | 2003-06-27 | 2007-10-09 | Hydro-Gear Limited Partnership | Charge pump for a hydraulic pump |
US7007468B1 (en) | 2003-06-27 | 2006-03-07 | Hydro-Gear Limited Partnership | Charge pump for a hydrostatic transmission |
US20050276701A1 (en) | 2004-05-28 | 2005-12-15 | Bowers Joanne M | Hydraulic motors |
CA2843321C (en) | 2014-02-21 | 2015-02-17 | Fluica Inc. | Method and apparatus for pumping fluid |
US10570893B2 (en) * | 2015-05-29 | 2020-02-25 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Hydraulic pump and detachable servo unit |
JP6993950B2 (en) * | 2018-09-28 | 2022-01-14 | Kyb株式会社 | Hydraulic rotary machine |
CN113294393B (en) * | 2020-02-24 | 2023-06-30 | 上海圣克赛斯液压股份有限公司 | Hydraulic power system of explosive-handling robot |
JP7026167B2 (en) * | 2020-05-26 | 2022-02-25 | Kyb株式会社 | Hydraulic rotary machine |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2379546A (en) * | 1937-06-09 | 1945-07-03 | Ex Cell O Corp | Hydraulic transmission |
US2945449A (en) * | 1954-06-03 | 1960-07-19 | Bendix Aviat Corp | Hydraulic control pump |
US3009422A (en) * | 1957-04-25 | 1961-11-21 | Bendix Corp | Pump |
US3051092A (en) * | 1959-01-06 | 1962-08-28 | United Aircraft Corp | Pump torque limiting means |
US3107632A (en) * | 1960-07-05 | 1963-10-22 | Gunnar A Wahlmark | Control for hydraulic device |
-
1963
- 1963-08-09 US US301092A patent/US3250227A/en not_active Expired - Lifetime
-
1964
- 1964-08-04 DE DE19641453428 patent/DE1453428A1/en active Pending
- 1964-08-04 GB GB31191/64A patent/GB1077844A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0015069A1 (en) * | 1979-02-21 | 1980-09-03 | General Signal Corporation | Fluid actuated constant output power control for variable delivery pump |
Also Published As
Publication number | Publication date |
---|---|
US3250227A (en) | 1966-05-10 |
DE1453428A1 (en) | 1970-01-22 |
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