[go: up one dir, main page]

GB982014A - Improvements in or relating to gear pumps - Google Patents

Improvements in or relating to gear pumps

Info

Publication number
GB982014A
GB982014A GB22219/62A GB2221962A GB982014A GB 982014 A GB982014 A GB 982014A GB 22219/62 A GB22219/62 A GB 22219/62A GB 2221962 A GB2221962 A GB 2221962A GB 982014 A GB982014 A GB 982014A
Authority
GB
United Kingdom
Prior art keywords
pressure
recess
gears
pressure plate
pump
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
GB22219/62A
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.)
Northrop Grumman Space and Mission Systems Corp
Original Assignee
Thompson Ramo Wooldridge Inc
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 Thompson Ramo Wooldridge Inc filed Critical Thompson Ramo Wooldridge Inc
Publication of GB982014A publication Critical patent/GB982014A/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
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/001—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations of similar working principle
    • 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
    • F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
    • F04C15/0023—Axial sealings for working fluid
    • F04C15/0026—Elements specially adapted for sealing of the lateral faces of intermeshing-engagement type machines or pumps, e.g. gear machines or pumps
    • 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
    • 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

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

982,014. Gear pumps. THOMPSON RAMO WOOLDRIDGE Inc. June 8, 1962 [June 16, 1961], No. 22219/62. Heading F1F. A gear pump 10, Fig. 1, comprises a double unit housed in casing members 11 each having a pair of parallel bores 13 bearingly supporting shaft extensions 16 of the pump gears 17 and covers 19, 20, which are identical except that the cover 19 allows the passage of a driving shaft extension 22. One casing member is provided with an inlet 37, (Fig. 2), and an outlet 40 common to both units. The inner face of each cover is formed with a recess 70 shaped as shown in Fig. 4, having a deeper peripheral portion 72 to accommodate a longer leg 303, Fig. 6, of a resilient sealing web 83, Fig. 3, which is abutted by backing means constituted by separate members 81, 82 of similar configuration to the recess and sealing web. The member 81 may be made of a phenolic coated canvas and the member 81 of gasket material. Abutting the member 81 is a pressure plate 80, Fig. 3, which overlies the gears 17 and the casing member 11 but does not extend beyond the confines of the recess. The plate 80 has a bronzed face lamination 86 adjacent the gears 17. Holes 91 through the pressure plate co-operate with lobes 102 in the recess to communicate fluid at pump discharge pressure to a pressure pocket 306, Fig. 6, to expand the web material into sealing contact with the recess walls and also apply a loading force to the pressure plate. The holes 91 also communicate pump discharge pressure to spaces B 1 , B 2 in the sealing web 83 and the backing members 81, 82 whilst holes 90 in the pressure plate 80 communicate pump inlet pressure to a space A in the sealing web 83 and the backing members 81, 82 to substantially balance the pressure in the pumping chamber acting on the pressure plate. A groove 89 in the bronze lamination 86 permits the escape of fluid trapped between the gear teeth and the formation of a fluid film to lubricate the lamination and the adjacent surfaces of the gears.
GB22219/62A 1961-06-16 1962-06-08 Improvements in or relating to gear pumps Expired GB982014A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US117562A US3101673A (en) 1961-06-16 1961-06-16 Implement and power steering pump

Publications (1)

Publication Number Publication Date
GB982014A true GB982014A (en) 1965-02-03

Family

ID=22373581

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22219/62A Expired GB982014A (en) 1961-06-16 1962-06-08 Improvements in or relating to gear pumps

Country Status (2)

Country Link
US (1) US3101673A (en)
GB (1) GB982014A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337564A (en) * 1998-01-28 1999-11-24 Luk Fahrzeug Hydraulik Pump shaft seal

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3174435A (en) * 1962-08-16 1965-03-23 Clark Equipment Co Pump or motor
US3171358A (en) * 1963-06-03 1965-03-02 Lear Siegler Inc Gear type pump
US3280754A (en) * 1964-02-12 1966-10-25 New York Air Brake Co Engine
GB1058276A (en) * 1964-02-27 1967-02-08 Dowty Hydraulic Units Ltd Gear pumps and motors
US3294029A (en) * 1965-08-20 1966-12-27 Trw Inc Pressure balanced seal-pack for reversible pumps and motors
US3416459A (en) * 1966-05-24 1968-12-17 Parker Hannifin Corp Rotary pump or motor
US3363578A (en) * 1966-12-21 1968-01-16 Clark Equipment Co Gear pump and thrust plate therefor
US3363579A (en) * 1966-12-21 1968-01-16 Clark Equipment Co Gear pump with thrust plate adapted to both directions of flow
US3413927A (en) * 1966-12-21 1968-12-03 Clark Equipment Co Gear pump with balanced pressure loaded thrust plate
US3413928A (en) * 1966-12-21 1968-12-03 Clark Equipment Co Gear pump thrust plate
US3482524A (en) * 1968-06-12 1969-12-09 Gen Signal Corp Pump or motor
US4259045A (en) * 1978-11-24 1981-03-31 Kayabakogyokabushikikaisha Gear pump or motor units with sleeve coupling for shafts
EP0020354B1 (en) * 1978-12-26 1983-07-13 Caterpillar Tractor Co. Manifolded multiple hydraulic pump structure
US4195480A (en) * 1978-12-26 1980-04-01 Caterpillar Tractor Co. Manifolded multiple hydraulic pump structure
JP2511149Y2 (en) 1988-11-30 1996-09-18 株式会社島津製作所 Multiple gear pump device
DE3936085A1 (en) * 1989-10-30 1991-05-02 Blach Josef A WORM SHAFT WITH COMPOSED HOUSING
US5022837A (en) * 1989-11-13 1991-06-11 Sta-Rite Industries, Inc. Seal arrangement for a gear machine
JP2005163676A (en) * 2003-12-03 2005-06-23 Seiko Epson Corp Gear pump and liquid ejecting apparatus
US20050254970A1 (en) * 2004-05-17 2005-11-17 James Mayer Quick connect pump to pump mount and drive arrangement
DE102005002757B4 (en) * 2005-01-20 2018-04-26 Trw Automotive Gmbh Power steering system hydraulic pump
CN104895782A (en) * 2015-06-18 2015-09-09 丁巧娜 Variable-speed pump of loading machine
US12000139B2 (en) 2019-04-14 2024-06-04 Building Envelope Materials LLC Insulation injection device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044873A (en) * 1933-11-21 1936-06-23 Cecil J Beust Rotary compressor
US2816510A (en) * 1949-08-18 1957-12-17 Plessey Co Ltd Gear pump
US2809592A (en) * 1954-01-13 1957-10-15 Cessna Aircraft Co Rotary pump or motor
US2923248A (en) * 1954-01-27 1960-02-02 New York Air Brake Co Pump
FR1121180A (en) * 1955-02-08 1956-07-24 Air Equipement Gear pump improvements

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337564A (en) * 1998-01-28 1999-11-24 Luk Fahrzeug Hydraulik Pump shaft seal
US6164928A (en) * 1998-01-28 2000-12-26 Luk Fahrzeug-Hydraulik Gmbh & Co. Kg Pump with openable seal
GB2337564B (en) * 1998-01-28 2002-01-02 Luk Fahrzeug Hydraulik Pump

Also Published As

Publication number Publication date
DE1553216A1 (en) 1969-09-25
US3101673A (en) 1963-08-27

Similar Documents

Publication Publication Date Title
GB982014A (en) Improvements in or relating to gear pumps
US2349022A (en) Laminated gear pump
US3748063A (en) Pressure loaded gear pump
GB987608A (en) Gear pump or motor
GB965256A (en) Rotary pump or motor
GB769763A (en) Improvements in or relating to gear pumps
GB994859A (en) Gear pumps and motors
SE339627B (en)
US3208393A (en) Gear type pump or motor
ES412048A1 (en) Gear pumps
US2864315A (en) Liquid pump
US2990783A (en) Gear pumps
GB1013158A (en) Hydraulic apparatus
US2808785A (en) Rotary pumps or compressors
ES340951A1 (en) Rotary pump or motor
US3043230A (en) High pressure gear pump
SE304179B (en)
GB1172579A (en) Pressure Loaded Hydraulic Gear Pumps or Motors
GB974653A (en) Improvements in or relating to gear pumps
US3847519A (en) Gear pump arrangement
GB1501343A (en) Screw-type pump
GB996441A (en) Gear pumps
GB1233376A (en)
GB1372481A (en) Gear pump
GB1471720A (en) Rotary positive-displacement fluid pumps