GB1336344A - Positive displacement pump - Google Patents

Positive displacement pump

Info

Publication number
GB1336344A
GB1336344A GB4759171A GB4759171A GB1336344A GB 1336344 A GB1336344 A GB 1336344A GB 4759171 A GB4759171 A GB 4759171A GB 4759171 A GB4759171 A GB 4759171A GB 1336344 A GB1336344 A GB 1336344A
Authority
GB
United Kingdom
Prior art keywords
port
housing
fluid
reservoir
cover plate
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
GB4759171A
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.)
Ford Motor Co Ltd
Ford Motor Co
Original Assignee
Ford Motor Co Ltd
Ford Motor Co
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 Ford Motor Co Ltd, Ford Motor Co filed Critical Ford Motor Co Ltd
Publication of GB1336344A publication Critical patent/GB1336344A/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
    • 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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; 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
    • F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
    • F04C14/02—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations specially adapted for several machines or pumps connected in series or in parallel
    • 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
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/12—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
    • F04C2/14—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons
    • F04C2/18—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type with toothed rotary pistons with similar tooth forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure
    • F16H61/0025—Supply of control fluid; Pumps therefore
    • 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
    • F04C2270/00—Control; Monitoring or safety arrangements
    • F04C2270/56—Number of pump/machine units in operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/0021—Generation or control of line pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Rotary Pumps (AREA)
  • General Details Of Gearings (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

1336344 Rotary Gear Pump FORD MOTOR CO Ltd 13 Oct 1971 [22 Dec 1970] 47591/71 Heading F1F In a gear pump assembly comprising a single drive gear 10 and a pair of driven gears 12, 14 forming a pair of pumping units, each drawing fluid from a reservoir 18 via inlet lines 16 and 22 respectively and delivering via lines 15 and 20 to a common output line 26, a pressure-regulating by-pass valve 28 receives pressure fluid via a port 36 to act differentially on the lands 48 and 50 of a spool 38 to move the spool against a spring 58 and a control pressure admitted via port 62, first to open communication between a port 30 and a feed port 60, then to connect port 32 to port 54 and by-pass line 56, to return fluid to the inlet line 22, a check valve 24 preventing its return to the reservoir. In a practical arrangement, Fig. 3 4, suitable for use in a vehicle automatic power transmission system, the gears are located in a recess 66 in a main housing 64, a cover plate 78 being secured thereto with the interposition of a separator plate 84 which is apertured to connect the various passageways which are formed in the housing 64 and the cover plate 78. The by-pass valve is also formed within the housing 64. Lubricating passages are provided, Fig. 8 (not shown).
GB4759171A 1970-12-22 1971-10-13 Positive displacement pump Expired GB1336344A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10061170A 1970-12-22 1970-12-22

Publications (1)

Publication Number Publication Date
GB1336344A true GB1336344A (en) 1973-11-07

Family

ID=22280626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4759171A Expired GB1336344A (en) 1970-12-22 1971-10-13 Positive displacement pump

Country Status (4)

Country Link
US (1) US3692432A (en)
CA (1) CA955797A (en)
DE (1) DE2150784A1 (en)
GB (1) GB1336344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11162494B2 (en) * 2019-01-23 2021-11-02 Pratt & Whitney Canada Corp. Scavenge pump

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4083345A (en) * 1975-10-14 1978-04-11 Stanadyne, Inc. Fuel injection pump
SE445245B (en) * 1982-06-23 1986-06-09 Jerzy Janczak HYDRAULIC PUMP OR HYDRAULIC ENGINE
DE3402448A1 (en) * 1984-01-25 1985-07-25 Volkswagenwerk Ag, 3180 Wolfsburg Appliance for pumping a hydraulic working fluid
US4850813A (en) * 1988-03-04 1989-07-25 Ford Motor Company Self unloading pump circuit for an automatic transmission having multiple pressure supply pumps
US5087177A (en) * 1989-10-31 1992-02-11 Borg-Warner Automotive, Inc. Dual capacity fluid pump
DE4200910C2 (en) * 1992-01-16 1999-06-02 Zahnradfabrik Friedrichshafen Automatic transmissions, in particular for motor vehicles
US5799260A (en) * 1996-02-20 1998-08-25 Ford Global Technologies, Inc. System for controlling multiple hydraulic pumps in an automatic transmission
JP3540546B2 (en) * 1997-06-04 2004-07-07 ジヤトコ株式会社 Hydraulic control device for automatic transmission
US6205779B1 (en) * 1999-03-31 2001-03-27 Daimlerchrysler Corporation Integral hub driven gears
KR100451651B1 (en) * 2001-12-13 2004-10-08 엘지전자 주식회사 The structure for preventing the reverse - rotation of centrifugal compressor
CN100419267C (en) * 2004-09-22 2008-09-17 株式会社Tbk No-load operation system of tadem pump
DE102005014654B4 (en) * 2005-03-31 2014-03-06 Gkn Driveline International Gmbh Motor vehicle hydraulic pump
EP1966491A1 (en) * 2005-12-17 2008-09-10 LuK Lamellen und Kupplungsbau Beteiligungs KG Rotary transmission leadthrough and torque transmission device with a rotary transmission leadthrough
JP5007085B2 (en) * 2006-08-15 2012-08-22 株式会社Ｔｂｋ Tandem pump valve structure
CN102878075A (en) * 2012-10-04 2013-01-16 张意立 Novel gear pump
CN102878072A (en) * 2012-10-04 2013-01-16 张意立 Pressure holding gear pump
DK177834B1 (en) * 2013-02-27 2014-09-08 C C Jensen As Device for processing a liquid under vacuum pressure
JP6491007B2 (en) * 2015-03-25 2019-03-27 株式会社Ｓｕｂａｒｕ Oil pump discharge rate switching device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2021613A (en) * 1933-01-06 1935-11-19 American La France And Foamite Pumping system
US2257095A (en) * 1940-01-04 1941-09-30 Westinghouse Electric & Mfg Co Variable capacity pump for governing apparatus
US3022514A (en) * 1959-01-26 1962-02-27 Walter L Kaiser Clothing protector
US3601506A (en) * 1969-11-28 1971-08-24 Chandler Evans Inc Wear equalized fuel delivery system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11162494B2 (en) * 2019-01-23 2021-11-02 Pratt & Whitney Canada Corp. Scavenge pump

Also Published As

Publication number Publication date
US3692432A (en) 1972-09-19
CA955797A (en) 1974-10-08
DE2150784A1 (en) 1972-07-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
746 Register noted 'licences of right' (sect. 46/1977)
PCNP Patent ceased through non-payment of renewal fee