EP1363016A3 - Fuel pump - Google Patents

Fuel pump Download PDF

Info

Publication number
EP1363016A3
EP1363016A3 EP03252438A EP03252438A EP1363016A3 EP 1363016 A3 EP1363016 A3 EP 1363016A3 EP 03252438 A EP03252438 A EP 03252438A EP 03252438 A EP03252438 A EP 03252438A EP 1363016 A3 EP1363016 A3 EP 1363016A3
Authority
EP
European Patent Office
Prior art keywords
pumping
plunger
fuel
pump
low pressure
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Withdrawn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
EP03252438A
Other languages
German (de)
French (fr)
Other versions
EP1363016A2 (en
Inventor
C. Wood
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.)
Delphi Technologies Inc
Original Assignee
Delphi Technologies 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 Delphi Technologies Inc filed Critical Delphi Technologies Inc
Publication of EP1363016A2 publication Critical patent/EP1363016A2/en
Publication of EP1363016A3 publication Critical patent/EP1363016A3/en
Withdrawn legal-status Critical Current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
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • F02M59/10—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type characterised by the piston-drive
    • F02M59/102—Mechanical drive, e.g. tappets or cams
    • 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
    • F02M59/46—Valves
    • F02M59/462—Delivery valves
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

A fuel pump for use in a common rail fuel system for an internal combustion engine comprises a plurality of pump assemblies (12), each of which has a pumping plunger (14) which is reciprocable within a respective plunger bore under the influence of an associated drive arrangement (20, 22, 24) to perform a pumping cycle during which fuel within a respective pumping chamber (18) is pressurised to a relatively high level. The drive arrangement for each pump assembly is arranged to impart reciprocating movement to the associated pumping plunger (14) upon co-operation with a cam surface. At least one of the pumping plunger (14) and the plunger bore is provided with a collection groove (50) which is registerable with a return passage (52) during at least a period of the pumping cycle, the return passage (52) being provided with a venturi device (54) in communication with a low pressure drain (58) such that, in use, leakage fuel within the collection groove (50) is permitted to flow to the low pressure drain through the venturi device (54).
EP03252438A 2002-04-22 2003-04-16 Fuel pump Withdrawn EP1363016A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0209146A GB0209146D0 (en) 2002-04-22 2002-04-22 Fuel pump
GB0209146 2002-04-22

Publications (2)

Publication Number Publication Date
EP1363016A2 EP1363016A2 (en) 2003-11-19
EP1363016A3 true EP1363016A3 (en) 2005-02-09

Family

ID=9935264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03252438A Withdrawn EP1363016A3 (en) 2002-04-22 2003-04-16 Fuel pump

Country Status (2)

Country Link
EP (1) EP1363016A3 (en)
GB (1) GB0209146D0 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1403264B1 (en) * 2010-12-16 2013-10-17 Bosch Gmbh Robert PUMPING GROUP FOR FOOD FUEL, PREFERIBLY GASOIL, FROM A CONTAINMENT TANK TO AN INTERNAL COMBUSTION ENGINE
EP2620633A1 (en) 2012-01-30 2013-07-31 Delphi Technologies Holding S.à.r.l. Pump head for a fuel pump
US8960159B2 (en) 2012-07-31 2015-02-24 Caterpillar Inc. Drain for fuel pump
GB2540549A (en) * 2015-07-20 2017-01-25 Delphi Int Operations Luxembourg Sarl Novel fuel pump design
ITUA20162000A1 (en) * 2016-03-24 2017-09-24 Bosch Gmbh Robert PUMPING GROUP FOR FUEL SUPPLEMENTATION, PREFERABLY GASOIL, TO AN INTERNAL COMBUSTION ENGINE
GB2556078B (en) * 2016-11-17 2020-02-26 Delphi Tech Ip Ltd Venturi flow circuit
DE102019116353B4 (en) * 2019-06-17 2020-12-24 Man Energy Solutions Se Fuel pump
CN115030846B (en) * 2022-07-07 2024-09-10 一汽解放汽车有限公司 High-pressure fuel pump

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184816A (en) * 1977-05-05 1980-01-22 Robert Bosch Gmbh Angled-edge controlled fuel injection pump for internal combustion engines
GB2077862A (en) * 1980-05-31 1981-12-23 Lucas Industries Ltd Fuel Pumping Apparatus
EP0408915A1 (en) * 1989-07-20 1991-01-23 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
GB2260374A (en) * 1991-10-12 1993-04-14 Lucas Ind Plc Fuel pump
EP0893598A2 (en) * 1997-07-26 1999-01-27 Lucas Industries Public Limited Company Fuel system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4184816A (en) * 1977-05-05 1980-01-22 Robert Bosch Gmbh Angled-edge controlled fuel injection pump for internal combustion engines
GB2077862A (en) * 1980-05-31 1981-12-23 Lucas Industries Ltd Fuel Pumping Apparatus
EP0408915A1 (en) * 1989-07-20 1991-01-23 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
GB2260374A (en) * 1991-10-12 1993-04-14 Lucas Ind Plc Fuel pump
EP0893598A2 (en) * 1997-07-26 1999-01-27 Lucas Industries Public Limited Company Fuel system

Also Published As

Publication number Publication date
EP1363016A2 (en) 2003-11-19
GB0209146D0 (en) 2002-05-29

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