GB1061088A - Improvements in or relating to pumps - Google Patents
Improvements in or relating to pumpsInfo
- Publication number
- GB1061088A GB1061088A GB5692/64A GB569264A GB1061088A GB 1061088 A GB1061088 A GB 1061088A GB 5692/64 A GB5692/64 A GB 5692/64A GB 569264 A GB569264 A GB 569264A GB 1061088 A GB1061088 A GB 1061088A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- fluid
- passage
- chamber
- notches
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Rotary Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
1,061,088. Rotary pumps; reciprocating pumps. TRW Inc. Feb. 11, 1964 [May 16, 1963], No.5692/64. Headings F1A and F1F. In a rotary pump of the outwardly-sliding vane or "slipper" type for a vehicle power-assisted steering system, the rotor 36, Fig.4, is lodged between a pair of pressure plates (24, 27), Fig. 2 (not shown), which in combination with a stationary abutment ring 33 defines a pumping chamber, the inner surface 34 of the ring being of substantially elliptic configuration to form two arcuate working- spaces 37, 38. Parallel-sided notches 46 in the periphery of the rotor contain sliding-rocking vanes or "slippers" 52 which are pressed against the ring 33 by compression springs 51. Each slipper is provided with an axially-orientated recess 58, to effect improved sealing, and a recess 59 at one end to give fluid access to spaces within the notches. Each of the notches has a recess 60 in one side thereof to provide relief for fluid trapped in the notch when it travels from one working space to the other. The rotor is attached to a driving shaft 92 which is supported by a single bearing (89, 90) lodged in the main body (30) of the pump housing, the rotor being mounted on the exterior of said bearing. The body (30) also contains a plate (29) which houses a flow-control valve, Fig. 11 (not shown), and is separated from the plate (27) by a plate (28). The plates (24, 27, 28, 29) and the ring 33 are aligned with one another by pins 66, 67 and pressed together by the pressure of fluid situated in an outlet chamber defined by the plate (29), the body (30) and a cap (32). A reservoir (101) is formed by a can (21) which has an inlet member (144) attached thereto and is secured by a discharge fitting (118) for the outlet chamber. In operation, fluid in the reservoir enters an adjacent inlet chamber 69 through an opening (102), Figs. and 5 (not shown) in the body (30) and passes into the spaces 37, 38 through notches or recesses (72), Fig. 6 (not shown), in the plate (24). Secondary inlet ports are provided in the plate (24) to give fluid access to the notches 46 whereby the pumping action is partly due to reciprocation of the slippers within the notches. Fluid is ejected by the slippers from the spaces 37, 38 and the notches 46 through ports (71, 75) in the plate (24), which ports are connected to similar ports (78, 79), Fig.7 (not shown), in the plate (27) by bores 61, 62 in the ring 33. Inlet recesses and ports (77, 80) are also provided in the plate (27). The ejected fluid passes through ports (82), Fig. 13 (not shown), in the plate (28) and a recess (104), Fig. 10 (not shown) in the plate (29) whence the fluid flows through an axiallyorientated passage (106) containing a pressurereducing orifice (107) which communicates with the outlet chamber. Communication between the passage (106) and a by-pass passage (123) is obstructed by the body (128) of the flow-control valve which is slidably lodged in the bore (120) within the plate (29) and pressed against a stop (126) by a spring (131). The passage (123) is connected to the inlet chamber 69 by a notch (83) in the plate (28). The body (128) houses a spring- biased valve (139), which normally closes a bore (137), and is provided with transverse bores (134) between lands (122, 130) which straddle the passage (123). The valve (139) serves to relieve excesspressure in the outlet chamber, the bore (137) being connected to said chamber by a passage (132). The pressure-drop across the orifice (107) effects a pressure-difference between the fluid in the passage (106) and that in the bore (120), whereby an increase in the rate of flow causes the body (128) to be depressed against the action of the spring (131) and allow an appropriate proportion of fluid in the passage (106) to pass through the by-pass passage (123) into the inlet chamber 69. In a modification, Fig. 12 (not shown), fluid in the recess (104) is ejected directly into the outlet chamber (108) without passing through an orifice. The fluid leaves the chamber (108) through a first orifice (158) in a tube (156) attached to an outlet nipple (155) and rendered in communication with the flow-control valve (161) by a second orifice (159). Fluid entering the tube (156) from the chamber (108) effects a pressure drop across the orifice (158) and a corresponding pressuredifference at the flow-control valve.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US280947A US3200752A (en) | 1963-05-16 | 1963-05-16 | Stack-up slipper pump with integral flow control valve |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1061088A true GB1061088A (en) | 1967-03-08 |
Family
ID=23075297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5692/64A Expired GB1061088A (en) | 1963-05-16 | 1964-02-11 | Improvements in or relating to pumps |
Country Status (4)
Country | Link |
---|---|
US (1) | US3200752A (en) |
DE (1) | DE1553225A1 (en) |
ES (1) | ES299815A1 (en) |
GB (1) | GB1061088A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2306064A1 (en) * | 1972-02-17 | 1973-08-30 | Sperry Rand Corp | HYDRAULICALLY BALANCED VANE CELL PUMP |
DE2902723A1 (en) * | 1979-01-25 | 1980-07-31 | Zahnradfabrik Friedrichshafen | PUMP, ESPECIALLY WING CELL PUMP, WITH A SLIDING BEARING |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3349714A (en) * | 1965-10-11 | 1967-10-31 | Ford Motor Co | Power steering pump |
US3644065A (en) * | 1970-03-18 | 1972-02-22 | Bosch Gmbh Robert | Apparatus for filling the suction chamber of a pump at high-pump speeds |
US3752601A (en) * | 1971-09-22 | 1973-08-14 | Ford Motor Co | High pressure liquid pump |
US3787151A (en) * | 1972-07-07 | 1974-01-22 | Trw Inc | Stack-up assembly |
US3797977A (en) * | 1972-12-13 | 1974-03-19 | Trw Inc | Slipper-type pumping element for a pump or motor |
US3865521A (en) * | 1973-07-30 | 1975-02-11 | Lewis E Upchurch | Seal assembly for rotary engines |
BR7608091A (en) * | 1975-12-09 | 1977-11-22 | Trw Inc | MOTORIZED STEERING PUMP FOR VEHICLE AND PUMP FOR SUPPLY OF FLUID TO A SYSTEM |
US4072450A (en) * | 1976-01-12 | 1978-02-07 | Trw Inc. | Pump assembly |
US4201521A (en) * | 1978-03-20 | 1980-05-06 | Trw Inc. | Pump and motor assembly |
US4199304A (en) * | 1978-03-13 | 1980-04-22 | Ford Motor Company | Positive displacement compact slipper pump |
JPS5855359B2 (en) * | 1980-05-07 | 1983-12-09 | サンデン株式会社 | Scroll compressor |
DE3018651A1 (en) * | 1980-05-16 | 1981-11-26 | Zahnradfabrik Friedrichshafen Ag, 7990 Friedrichshafen | MUTUAL FIXING DEVICE FOR TWO COMPONENTS |
US4401417A (en) * | 1980-10-28 | 1983-08-30 | Eaton Corporation | Hydraulic pump and improved flow control valve assembly for use therein |
JPS6126638Y2 (en) * | 1980-12-27 | 1986-08-09 | ||
JPH0219677A (en) * | 1988-07-08 | 1990-01-23 | Sanden Corp | Scroll type fluid compressor |
US5651665A (en) * | 1996-11-12 | 1997-07-29 | General Motors Corporation | Adjustable relief valve arrangement for a motor vehicle power steering hydraulic pump system |
FR2763652B1 (en) * | 1997-05-23 | 1999-10-15 | Hydroperfect Int | HYDRAULIC PUMP AND ELECTRIC PUMP GROUP EQUIPPED WITH THIS PUMP |
DE10015020A1 (en) * | 2000-03-25 | 2001-09-27 | Zf Lenksysteme Gmbh | Positive displacement pump |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2599927A (en) * | 1944-10-06 | 1952-06-10 | William T Livermore | Slipper pump |
US2714858A (en) * | 1950-11-03 | 1955-08-09 | Kepka Frank | Rotary compressors or pumps, in combination with hydraulic controls, and mechanical controls in co-ordination therewith |
US2786422A (en) * | 1952-12-15 | 1957-03-26 | New York Air Brake Co | Vane pump with improved discharge port |
US2809593A (en) * | 1953-07-21 | 1957-10-15 | Vickers Inc | Power transmission |
US2829599A (en) * | 1954-02-17 | 1958-04-08 | Vickers Inc | Power transmission |
US2755741A (en) * | 1954-05-03 | 1956-07-24 | Vickers Inc | Power transmission |
US3110266A (en) * | 1955-02-24 | 1963-11-12 | William T Livermore | Hydraulic pump and control valve assembly |
US2977888A (en) * | 1955-02-24 | 1961-04-04 | William T Livermore | Hydraulic pump and control valve assembly |
US3099964A (en) * | 1958-03-13 | 1963-08-06 | Eickmann Karl | Vanes for rotary vane machine supported in balance and in stability and in less friction |
US3014431A (en) * | 1958-08-15 | 1961-12-26 | Shell Oil Co | Sliding vane pump |
US3072067A (en) * | 1959-12-22 | 1963-01-08 | Eaton Mfg Co | Rotary pump |
US3102494A (en) * | 1961-02-23 | 1963-09-03 | American Brake Shoe Co | Rotary vane hydraulic power unit |
-
1963
- 1963-05-16 US US280947A patent/US3200752A/en not_active Expired - Lifetime
-
1964
- 1964-02-11 GB GB5692/64A patent/GB1061088A/en not_active Expired
- 1964-03-24 DE DE19641553225 patent/DE1553225A1/en active Pending
- 1964-05-14 ES ES0299815A patent/ES299815A1/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2306064A1 (en) * | 1972-02-17 | 1973-08-30 | Sperry Rand Corp | HYDRAULICALLY BALANCED VANE CELL PUMP |
DE2902723A1 (en) * | 1979-01-25 | 1980-07-31 | Zahnradfabrik Friedrichshafen | PUMP, ESPECIALLY WING CELL PUMP, WITH A SLIDING BEARING |
Also Published As
Publication number | Publication date |
---|---|
US3200752A (en) | 1965-08-17 |
ES299815A1 (en) | 1964-12-01 |
DE1553225A1 (en) | 1970-02-05 |
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