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GB687998A - Improved rotary pump - Google Patents

Improved rotary pump

Info

Publication number
GB687998A
GB687998A GB6728/51A GB672851A GB687998A GB 687998 A GB687998 A GB 687998A GB 6728/51 A GB6728/51 A GB 6728/51A GB 672851 A GB672851 A GB 672851A GB 687998 A GB687998 A GB 687998A
Authority
GB
United Kingdom
Prior art keywords
stator
pump
pressure
passage
chamber
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
GB6728/51A
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.)
Motors Liquidation Co
Original Assignee
General Motors 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
Application filed by General Motors Corp filed Critical General Motors Corp
Publication of GB687998A publication Critical patent/GB687998A/en
Expired legal-status Critical Current

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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/06—Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
    • 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
    • F04C14/18—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber
    • F04C14/22—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
    • F04C14/223—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members using a movable cam
    • 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
    • F04C2/3441—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation
    • F04C2/3442—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 the inner and outer member being in contact along one line or continuous surface substantially parallel to the axis of rotation the surfaces of the inner and outer member, forming the working space, being surfaces of revolution

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Rotary Pumps (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

687,998. Rotary pumps. GENERAL MOTORS CORPORATION. March 21, 1951 [April 1, 1950], No. 6728/51. Class 110(ii) A pump having sliding-vanes 66 within an adjustable stator 62, to vary the pump capacity, is provided with large inlet and outlet passages 22, 30 leading respectively to narrow ports 24, 29 the ends of which are tapered off in the form of ramps to effect a gradual build up and release of pressure as the vanes pass by. A spring 68, Fig. 4 (not shown), forces the stator 62 upwards to give the greatest eccentricity between the stator and rotor 64 for starting up purposes. A piston valve 40 has its interior 42 open to the pump discharge pressure which, at first, also communicates with chambers 70, 72 at one end of the stator, and a chamber 74 at the other end acting in the same direction as the spring 68. As the vanes pass over a ramp 96, of the outlet passage 29, fluid fills passages 29, 26 and bore 42 building up pressure against a valve spring 48. When the pump pressure exceeds that demanded, e.g. by a servo system being supplied, the valve is forced upwards to admit further fluid to the chambers 70, 72 through port 44 and a passage 34. and to release the fluid supply from the chamber 74 by cutting off a port 35, the stator 62 then moving to decrease the pump capacity. According to the position of the valve 40, pressure fluid is directed solely to chamber 74; solely to chamber 72 and 70 or, in the usual case to all chambers 72, 70, 74. A passage 76 connects chambers 70, 72 when the stator is at maximum eccentricity. A restricted passage 78 connects the discharge side of the pump with the chamber 74. The backing spring 48, on the valve, is adjustable through a nut 52. Side rings 100, 102 support the vanes. Drain passages 82, 84 discharge fluid which leaks through packing 104. An annular passage 86 communicates with passages 88, 90 to supply lubricant to the moving parts when the stator 62 is moved sufficiently to uncover the passage 90 leading to the pump delivery. The passages 88, 90 are designed to produce a lubricating pressure of about 20 lbs. per sq. inch from a pump delivery pressure of 80 1bs. per sq. inch.
GB6728/51A 1950-04-01 1951-03-21 Improved rotary pump Expired GB687998A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US687998XA 1950-04-01 1950-04-01

Publications (1)

Publication Number Publication Date
GB687998A true GB687998A (en) 1953-02-25

Family

ID=22084775

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6728/51A Expired GB687998A (en) 1950-04-01 1951-03-21 Improved rotary pump

Country Status (1)

Country Link
GB (1) GB687998A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786422A (en) * 1952-12-15 1957-03-26 New York Air Brake Co Vane pump with improved discharge port
FR2426168A1 (en) * 1978-05-20 1979-12-14 Teves Gmbh Alfred ROTATING VANE MACHINE
FR2441065A1 (en) * 1978-11-11 1980-06-06 Bosch Gmbh Robert INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE
FR2570444A1 (en) * 1984-09-20 1986-03-21 Skf Gmbh VANE PUMP
FR2862354A1 (en) * 2003-11-13 2005-05-20 Daimler Chrysler Ag Variable displacement pump e.g. vane pump, for internal combustion engine, has nesting ring moved transversally with respect to rotor in chamber which has sealing units acting on rings flat wheels supported on surface of chamber
US7108493B2 (en) 2002-03-27 2006-09-19 Argo-Tech Corporation Variable displacement pump having rotating cam ring
CN109296532A (en) * 2018-12-14 2019-02-01 重庆工商大学 Rotary Vane Electronic Air Pump

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786422A (en) * 1952-12-15 1957-03-26 New York Air Brake Co Vane pump with improved discharge port
FR2426168A1 (en) * 1978-05-20 1979-12-14 Teves Gmbh Alfred ROTATING VANE MACHINE
FR2441065A1 (en) * 1978-11-11 1980-06-06 Bosch Gmbh Robert INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE
FR2570444A1 (en) * 1984-09-20 1986-03-21 Skf Gmbh VANE PUMP
US7491043B2 (en) 2001-04-05 2009-02-17 Argo-Tech Corporation Variable displacement pump having a rotating cam ring
US8740593B2 (en) 2001-04-05 2014-06-03 Eaton Industrial Corporation Variable displacement pump having a rotating cam ring
US9435338B2 (en) 2001-04-05 2016-09-06 Eaton Industrial Corporation Variable displacement pump having rotating cam ring
US7108493B2 (en) 2002-03-27 2006-09-19 Argo-Tech Corporation Variable displacement pump having rotating cam ring
FR2862354A1 (en) * 2003-11-13 2005-05-20 Daimler Chrysler Ag Variable displacement pump e.g. vane pump, for internal combustion engine, has nesting ring moved transversally with respect to rotor in chamber which has sealing units acting on rings flat wheels supported on surface of chamber
CN109296532A (en) * 2018-12-14 2019-02-01 重庆工商大学 Rotary Vane Electronic Air Pump
CN109296532B (en) * 2018-12-14 2024-01-26 重庆工商大学 Electronic air pump with rotary vane

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