ATE123111T1 - FUEL PUMP. - Google Patents

FUEL PUMP.

Info

Publication number
ATE123111T1
ATE123111T1 AT92308571T AT92308571T ATE123111T1 AT E123111 T1 ATE123111 T1 AT E123111T1 AT 92308571 T AT92308571 T AT 92308571T AT 92308571 T AT92308571 T AT 92308571T AT E123111 T1 ATE123111 T1 AT E123111T1
Authority
AT
Austria
Prior art keywords
grooves
fuel
pump
bore
pair
Prior art date
Application number
AT92308571T
Other languages
German (de)
Inventor
Christopher Martin Dona Little
Original Assignee
Lucas Ind Plc
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 Ind Plc filed Critical Lucas Ind Plc
Application granted granted Critical
Publication of ATE123111T1 publication Critical patent/ATE123111T1/en

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.
AT92308571T 1991-10-12 1992-09-21 FUEL PUMP. ATE123111T1 (en)

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
ATE123111T1 true ATE123111T1 (en) 1995-06-15

Family

ID=10702858

Family Applications (1)

Application Number Title Priority Date Filing Date
AT92308571T ATE123111T1 (en) 1991-10-12 1992-09-21 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
WO2004088120A2 (en) * 2003-04-01 2004-10-14 Avl List Gmbh Internal combustion engine comprising a piston injection pump
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
EP0537911B1 (en) 1995-05-24
DE69202673T2 (en) 1995-10-19
EP0537911A1 (en) 1993-04-21
GB9121712D0 (en) 1991-11-27
DE69202673D1 (en) 1995-06-29

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee