GB2093529A - Gear pump having fluid deaeration capability - Google Patents

Gear pump having fluid deaeration capability

Info

Publication number
GB2093529A
GB2093529A GB8137722A GB8137722A GB2093529A GB 2093529 A GB2093529 A GB 2093529A GB 8137722 A GB8137722 A GB 8137722A GB 8137722 A GB8137722 A GB 8137722A GB 2093529 A GB2093529 A GB 2093529A
Authority
GB
United Kingdom
Prior art keywords
gear
pair
teeth
cavities
gear 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.)
Withdrawn
Application number
GB8137722A
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.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor 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 Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Publication of GB2093529A publication Critical patent/GB2093529A/en
Withdrawn legal-status Critical Current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
    • F04C15/062—Arrangements for supercharging the working space
    • 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
    • F04C15/0053—Venting means for starting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Rotary Pumps (AREA)

Abstract

A gear pump (10) having a housing (12) defining first and second gear cavities (38, 40) and inlet and outlet ports (42, 44). A pair of intermeshing gears (20, 22) having a plurality of teeth (32) and teeth roots (36) are positioned in the cavities. A pair of bleed slots (50) are provided for directly communicating with the gear tooth roots and permitting entrained air and fluid thereat to be delivered away from the inlet and outlet ports. Advantageously, the bleed slots are located generally adjacent the breakaway points (46) of the respective cavities, and a pair of charging slots (62) are provided for communicating pressure from the outlet port with the gear teeth and encouraging movement of entrained air radially inwardly toward the bleed slots.
GB8137722A 1980-08-22 1980-08-22 Gear pump having fluid deaeration capability Withdrawn GB2093529A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/001087 WO1982000689A1 (en) 1980-08-22 1980-08-22 Gear pump having fluid deaeration capability

Publications (1)

Publication Number Publication Date
GB2093529A true GB2093529A (en) 1982-09-02

Family

ID=22154504

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8137722A Withdrawn GB2093529A (en) 1980-08-22 1980-08-22 Gear pump having fluid deaeration capability

Country Status (5)

Country Link
JP (1) JPS57501243A (en)
BE (1) BE889888A (en)
DE (1) DE3050536A1 (en)
GB (1) GB2093529A (en)
WO (1) WO1982000689A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480970A (en) * 1981-05-30 1984-11-06 Rolls-Royce Limited Self priming gear pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016206023A1 (en) 2016-04-12 2017-10-12 Volkswagen Aktiengesellschaft Fluid pump, in particular for a motor vehicle

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541010A (en) * 1945-12-22 1951-02-06 Equi Flow Inc Gear pump or motor
US3267862A (en) * 1964-03-16 1966-08-23 Roper Ind Inc Apparatus for pumping and separating liquid and gaseous fluids
US3526470A (en) * 1968-09-11 1970-09-01 St Regis Paper Co Circulating pumps
US4231726A (en) * 1978-06-22 1980-11-04 Caterpillar Tractor Co. Gear pump having fluid deaeration capability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4480970A (en) * 1981-05-30 1984-11-06 Rolls-Royce Limited Self priming gear pump

Also Published As

Publication number Publication date
JPS57501243A (en) 1982-07-15
WO1982000689A1 (en) 1982-03-04
DE3050536A1 (en) 1982-10-07
BE889888A (en) 1981-12-01

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)