GB9121712D0 - Fuel pump - Google Patents

Fuel pump

Info

Publication number
GB9121712D0
GB9121712D0 GB919121712A GB9121712A GB9121712D0 GB 9121712 D0 GB9121712 D0 GB 9121712D0 GB 919121712 A GB919121712 A GB 919121712A GB 9121712 A GB9121712 A GB 9121712A GB 9121712 D0 GB9121712 D0 GB 9121712D0
Authority
GB
United Kingdom
Prior art keywords
grooves
fuel
pump
bore
pair
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.)
Pending
Application number
GB919121712A
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Priority to GB919121712A priority Critical patent/GB9121712D0/en
Publication of GB9121712D0 publication Critical patent/GB9121712D0/en
Priority to AT92308571T priority patent/ATE123111T1/en
Priority to EP92308571A priority patent/EP0537911B1/en
Priority to DE69202673T priority patent/DE69202673T2/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M59/00—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps
    • F02M59/44—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston
    • F02M59/442—Details, components parts, or accessories not provided for in, or of interest apart from, the apparatus of groups F02M59/02 - F02M59/42; Pumps having transducers, e.g. to measure displacement of pump rack or piston means preventing fuel leakage around pump plunger, e.g. fluid barriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
    • F02M43/02—Pumps peculiar thereto

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Control Of The Air-Fuel Ratio Of Carburetors (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)

Abstract

A reciprocating plunger fuel injection pump includes a plunger (17) slidable in a bore (16). A pair of axially spaced grooves (29, 30) are formed in the wall of the bore and are interconnected by a passage (32). Associated with the grooves are a pair of changeover valves (36, 37) which are each placed in one position when the pump is supplying heavy fuel to allow fuel collecting in the grooves to flow to a drain. The valves are placed in their alternative positions when light fuel is being supplied by the pump to connect one groove with a source (39) of lubricating oil and the other groove with a lubricating oil drain.
GB919121712A 1991-10-12 1991-10-12 Fuel pump Pending GB9121712D0 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB919121712A GB9121712D0 (en) 1991-10-12 1991-10-12 Fuel pump
AT92308571T ATE123111T1 (en) 1991-10-12 1992-09-21 FUEL PUMP.
EP92308571A EP0537911B1 (en) 1991-10-12 1992-09-21 Fuel pump
DE69202673T DE69202673T2 (en) 1991-10-12 1992-09-21 Fuel pump.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB919121712A GB9121712D0 (en) 1991-10-12 1991-10-12 Fuel pump

Publications (1)

Publication Number Publication Date
GB9121712D0 true GB9121712D0 (en) 1991-11-27

Family

ID=10702858

Family Applications (1)

Application Number Title Priority Date Filing Date
GB919121712A Pending GB9121712D0 (en) 1991-10-12 1991-10-12 Fuel pump

Country Status (4)

Country Link
EP (1) EP0537911B1 (en)
AT (1) ATE123111T1 (en)
DE (1) DE69202673T2 (en)
GB (1) GB9121712D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3979313B2 (en) * 2003-03-14 2007-09-19 株式会社日立製作所 High pressure pump
DE112004000500A5 (en) * 2003-04-01 2013-09-19 Avl List Gmbh Internal combustion engine
EP2339166A1 (en) 2009-12-23 2011-06-29 Caterpillar Motoren GmbH & Co. KG Purging method and system with scraper or wiper ring for preventing formation of deposits inside fuel pump
EP2339165B1 (en) * 2009-12-23 2013-10-23 Caterpillar Motoren GmbH & Co. KG Purging method and system for preventing formation of deposits inside fuel pump
CN102536565A (en) * 2011-12-30 2012-07-04 成都威特电喷有限责任公司 Plunger and barrel assembly capable of eliminating hydraulic clamping force of electrically-controlled high-pressure fuel pump plunger and barrel assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1306085A (en) * 1969-05-29 1973-02-07
GB2077862B (en) * 1980-05-31 1983-10-05 Lucas Industries Ltd Fuel pumping apparatus
GB2129883B (en) * 1982-11-05 1985-10-09 Lucas Ind Plc Liquid fuel injection pump

Also Published As

Publication number Publication date
ATE123111T1 (en) 1995-06-15
DE69202673D1 (en) 1995-06-29
EP0537911A1 (en) 1993-04-21
DE69202673T2 (en) 1995-10-19
EP0537911B1 (en) 1995-05-24

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