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GB738782A - Improvements in gear pumps - Google Patents

Improvements in gear pumps

Info

Publication number
GB738782A
GB738782A GB1060353A GB1060353A GB738782A GB 738782 A GB738782 A GB 738782A GB 1060353 A GB1060353 A GB 1060353A GB 1060353 A GB1060353 A GB 1060353A GB 738782 A GB738782 A GB 738782A
Authority
GB
United Kingdom
Prior art keywords
bushes
pump
fluid
pressure
passages
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
GB1060353A
Inventor
Eric Hider Bowers
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.)
Dowty Hydraulic Units Ltd
Original Assignee
Dowty Hydraulic Units Ltd
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 Dowty Hydraulic Units Ltd filed Critical Dowty Hydraulic Units Ltd
Priority to GB1060353A priority Critical patent/GB738782A/en
Priority to ES0214784A priority patent/ES214784A1/en
Publication of GB738782A publication Critical patent/GB738782A/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
    • 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
    • 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

Landscapes

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

Abstract

738,782. Gear pumps. DOWTY HYDRAULIC UNITS, Ltd. [formerly DOWTY AUTO UNITS, Ltd.]. March 23, 1954 [April 17, 1953], No. 10603/53. Class 110 (2). The cylindrical bushes 8, 10 at one end of a gear pump are axially floating and each has a predetermined area outside a sealing ring 24, located in an annular groove 23 in the bush, subject to discharge pressure by means of a groove 22 on the discharge side of the pump between the housing 1 and the bushes 8, 10, imparting to these bushes the correct axial load for minimum frictional losses consistent with good hydraulic efficiency. The area of each bush inside the ring 24 is in communication with the suction side of the pump by means of bores 26, 34 in the shafts 5, 7 opening into the chambers 28, 30 which are connected by passages 29, 31 and 32 to the suction port 20. The bushes 8, 9, 10, 11 are lubricated by the leakage of fluid from the high-pressure side of the pump along the working clearances between the shafts and the bearing bores into the areas enclosed by the rings 24 and into the chambers 28, 30. The bushes may be provided with lubricating grooves. A relief valve 33 in the passage 32 maintains the passages charged with fluid at a pressure a little above atmospheric and causes the fluid to load a gland 19 to maintain efficient sealing.
GB1060353A 1953-04-17 1953-04-17 Improvements in gear pumps Expired GB738782A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1060353A GB738782A (en) 1953-04-17 1953-04-17 Improvements in gear pumps
ES0214784A ES214784A1 (en) 1953-04-17 1954-04-14 Improvements in gear pumps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1060353A GB738782A (en) 1953-04-17 1953-04-17 Improvements in gear pumps

Publications (1)

Publication Number Publication Date
GB738782A true GB738782A (en) 1955-10-19

Family

ID=9970891

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1060353A Expired GB738782A (en) 1953-04-17 1953-04-17 Improvements in gear pumps

Country Status (2)

Country Link
ES (1) ES214784A1 (en)
GB (1) GB738782A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2990783A (en) * 1959-10-16 1961-07-04 Borg Warner Gear pumps
US3003426A (en) * 1959-03-23 1961-10-10 Clark Equipment Co Gear pump
US3011448A (en) * 1957-11-06 1961-12-05 Borg Warner Pressure loaded pump
US3046902A (en) * 1959-03-23 1962-07-31 Clark Equipment Co Pump
US3073251A (en) * 1958-02-28 1963-01-15 Bosch Gmbh Robert Hydraulic machines
US3194168A (en) * 1958-10-06 1965-07-13 Rosaen Borje O Fluid pumps
DE1293022B (en) * 1955-10-24 1969-04-17 Plessey Company U K Ltd Bearing lubrication and cooling in a gear pump or gear motor
DE1293599B (en) * 1958-01-14 1969-04-24 Borg Warner Gear pump
DE1293598B (en) * 1956-06-30 1969-04-24 Bosch Gmbh Robert Gear pump and bearing body in the pump
CN106567910A (en) * 2016-11-14 2017-04-19 河南蒲瑞精密机械有限公司 Dynamic pressure gear transmission device
EP3964689A1 (en) * 2020-09-08 2022-03-09 Eaton Intelligent Power Limited Gear pump with self-lubricating bearings

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1293022B (en) * 1955-10-24 1969-04-17 Plessey Company U K Ltd Bearing lubrication and cooling in a gear pump or gear motor
DE1293598B (en) * 1956-06-30 1969-04-24 Bosch Gmbh Robert Gear pump and bearing body in the pump
US3011448A (en) * 1957-11-06 1961-12-05 Borg Warner Pressure loaded pump
DE1293599B (en) * 1958-01-14 1969-04-24 Borg Warner Gear pump
US3073251A (en) * 1958-02-28 1963-01-15 Bosch Gmbh Robert Hydraulic machines
US3194168A (en) * 1958-10-06 1965-07-13 Rosaen Borje O Fluid pumps
US3046902A (en) * 1959-03-23 1962-07-31 Clark Equipment Co Pump
US3003426A (en) * 1959-03-23 1961-10-10 Clark Equipment Co Gear pump
US2990783A (en) * 1959-10-16 1961-07-04 Borg Warner Gear pumps
CN106567910A (en) * 2016-11-14 2017-04-19 河南蒲瑞精密机械有限公司 Dynamic pressure gear transmission device
CN106567910B (en) * 2016-11-14 2023-08-22 河南蒲瑞精密机械有限公司 Dynamic pressure gear transmission device
EP3964689A1 (en) * 2020-09-08 2022-03-09 Eaton Intelligent Power Limited Gear pump with self-lubricating bearings
US11703050B2 (en) 2020-09-08 2023-07-18 Eaton Intelligent Power Limited Gear pump with self-lubricating bearings

Also Published As

Publication number Publication date
ES214784A1 (en) 1955-06-01

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