GB2280228A - Fuel pump - Google Patents

Fuel pump

Info

Publication number
GB2280228A
GB2280228A GB9417794A GB9417794A GB2280228A GB 2280228 A GB2280228 A GB 2280228A GB 9417794 A GB9417794 A GB 9417794A GB 9417794 A GB9417794 A GB 9417794A GB 2280228 A GB2280228 A GB 2280228A
Authority
GB
United Kingdom
Prior art keywords
pumping chamber
plunger
flow path
fuel
passage
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.)
Granted
Application number
GB9417794A
Other versions
GB2280228B (en
GB9417794D0 (en
Inventor
Anthony John Williams
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
Publication of GB9417794D0 publication Critical patent/GB9417794D0/en
Publication of GB2280228A publication Critical patent/GB2280228A/en
Application granted granted Critical
Publication of GB2280228B publication Critical patent/GB2280228B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F02M59/46—Valves
    • F02M59/466—Electrically operated valves, e.g. using electromagnetic or piezoelectric operating means
    • 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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/366—Valves being actuated electrically
    • 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

Landscapes

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

Abstract

A pump/injector includes a pumping plunger (13A) movable inwardly in a bore to displace fuel from a pumping chamber (16) through an outlet. A fuel flow path into the pumping chamber includes an inlet port (20) connected to an annulus (20A) in the surrounding body (11A) and a passage (29, 30) in the plunger communicating with the pumping chamber. The port and passage are brought into communication towards the end of the outward movement of the plunger to allow fuel flow into the pumping chamber and the fuel flow path includes a non-return valve (28) which closes to prevent escape of fuel from the pumping chamber along the flow path when inward movement of the plunger takes place and before the port and passage move out of communication. <IMAGE>
GB9417794A 1992-04-10 1993-03-30 Fuel pump Expired - Fee Related GB2280228B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929207986A GB9207986D0 (en) 1992-04-10 1992-04-10 Fuel pump
PCT/GB1993/000659 WO1993021439A1 (en) 1992-04-10 1993-03-30 Fuel pump

Publications (3)

Publication Number Publication Date
GB9417794D0 GB9417794D0 (en) 1994-10-26
GB2280228A true GB2280228A (en) 1995-01-25
GB2280228B GB2280228B (en) 1995-07-26

Family

ID=10713873

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929207986A Pending GB9207986D0 (en) 1992-04-10 1992-04-10 Fuel pump
GB9417794A Expired - Fee Related GB2280228B (en) 1992-04-10 1993-03-30 Fuel pump

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929207986A Pending GB9207986D0 (en) 1992-04-10 1992-04-10 Fuel pump

Country Status (3)

Country Link
DE (1) DE4391586T1 (en)
GB (2) GB9207986D0 (en)
WO (1) WO1993021439A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9917998D0 (en) * 1999-07-30 1999-09-29 Lucas Ind Plc Fuel pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125116A (en) * 1982-08-03 1984-02-29 Lucas Ind Plc Reciprocable plunger fuel injection pump
EP0396127A1 (en) * 1989-05-03 1990-11-07 Klöckner-Humboldt-Deutz Aktiengesellschaft Fuel injection apparatus
US5036821A (en) * 1988-11-07 1991-08-06 Toyota Jidosha Kabushiki Kaisha Fuel injection system for an internal combustion engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125116A (en) * 1982-08-03 1984-02-29 Lucas Ind Plc Reciprocable plunger fuel injection pump
US5036821A (en) * 1988-11-07 1991-08-06 Toyota Jidosha Kabushiki Kaisha Fuel injection system for an internal combustion engine
EP0396127A1 (en) * 1989-05-03 1990-11-07 Klöckner-Humboldt-Deutz Aktiengesellschaft Fuel injection apparatus

Also Published As

Publication number Publication date
GB2280228B (en) 1995-07-26
GB9207986D0 (en) 1992-05-27
GB9417794D0 (en) 1994-10-26
WO1993021439A1 (en) 1993-10-28
DE4391586T1 (en) 1995-04-13

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010330