GB1487178A - Fuel injection pumping apparatus - Google Patents

Fuel injection pumping apparatus

Info

Publication number
GB1487178A
GB1487178A GB5441073A GB5441073A GB1487178A GB 1487178 A GB1487178 A GB 1487178A GB 5441073 A GB5441073 A GB 5441073A GB 5441073 A GB5441073 A GB 5441073A GB 1487178 A GB1487178 A GB 1487178A
Authority
GB
United Kingdom
Prior art keywords
piston
orifice
feedpump
fuel injection
fuel
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.)
Expired
Application number
GB5441073A
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.)
CAV Ltd
Original Assignee
CAV 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 CAV Ltd filed Critical CAV Ltd
Priority to GB5441073A priority Critical patent/GB1487178A/en
Priority to FR7438623A priority patent/FR2252497B1/fr
Publication of GB1487178A publication Critical patent/GB1487178A/en
Expired 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
    • F02M59/20—Varying fuel delivery in quantity or timing
    • F02M59/34—Varying fuel delivery in quantity or timing by throttling of passages to pumping elements or of overflow passages, e.g. throttling by means of a pressure-controlled sliding valve having liquid stop or abutment
    • 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
    • F02M41/00—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor
    • F02M41/08—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined
    • F02M41/14—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons
    • F02M41/1405—Fuel-injection apparatus with two or more injectors fed from a common pressure-source sequentially by means of a distributor the distributor and pumping elements being combined rotary distributor supporting pump pistons pistons being disposed radially with respect to rotation axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
    • F04B49/22—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by means of valves
    • F04B49/24—Bypassing

Landscapes

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

Abstract

1487178 Fuel injection pumps CAV Ltd 15 Nov 1974 [23 Nov 1973] 54410/73 Heading F1A [Also in Division F2] In fuel injection pumping apparatus wherein a feedpump 23 supplies fuel to an injection pump (10-19) through a passage 20 containing a variable throttle (21), the output pressure of the feedpump 23 is controlled by a relief valve comprising a piston 25 loaded at one end by a piston 28 subjected to the delivery pressure upstream of an orifice 24 and subjected at its opposite end to the pressure downstream of the orifice, the resulting movement of the piston 25 controlling the opening of a bleed port 27. The piston 28 is smaller than the piston 25 and springs 30, 31 may be provided for urging the pistons in a direction tending to close the bleed port 27. A non-return valve 32 for limiting the maximum pressure downstream of the orifice 24 is connected in parallel with the latter. The orifice 24 may be formed in a spring- loaded plate (33) which constitutes the non-return valve 32. By providing a flat (37), Fig. 1 (not shown) on the piston 25, pressurization of the pump inlet can be used to cause displacement of the piston away from the piston 28 to allow fuel to flow past the flat and by-pass the feedpump thereby purging the apparatus of air.
GB5441073A 1973-11-23 1973-11-23 Fuel injection pumping apparatus Expired GB1487178A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB5441073A GB1487178A (en) 1973-11-23 1973-11-23 Fuel injection pumping apparatus
FR7438623A FR2252497B1 (en) 1973-11-23 1974-11-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5441073A GB1487178A (en) 1973-11-23 1973-11-23 Fuel injection pumping apparatus

Publications (1)

Publication Number Publication Date
GB1487178A true GB1487178A (en) 1977-09-28

Family

ID=10470921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5441073A Expired GB1487178A (en) 1973-11-23 1973-11-23 Fuel injection pumping apparatus

Country Status (2)

Country Link
FR (1) FR2252497B1 (en)
GB (1) GB1487178A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952372A1 (en) * 1978-12-28 1980-07-03 Victor Company Of Japan DEVICE FOR DETECTING THE POSITION OF A TAPE IN A MAGNETIC TAPE RECORDING AND / OR PLAYBACK DEVICE
GB2128297A (en) * 1982-10-07 1984-04-26 Vosper Hovermarine Ltd Improvements in or relating to fluid flow control systems
US4529054A (en) * 1982-10-07 1985-07-16 Vosper Hovermarine Limited Fluid flow control systems
EP1255037A1 (en) * 2000-02-07 2002-11-06 Bosch Automotive Systems Corporation Fuel injection device

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2585077B1 (en) * 1985-07-16 1989-08-25 Renault VARIABLE FLOW PUMP
EP0270720A1 (en) * 1986-12-12 1988-06-15 Regie Nationale Des Usines Renault Variable-delivery pump
DE3712716A1 (en) * 1986-08-01 1988-02-04 Man Nutzfahrzeuge Gmbh PROCESS FOR REDUCING LOSSES, CHANGING THE SUPPLY CURRENT OF A CONSTANT FEED PUMP AND DEVICE FOR PERFORMING THE PROCESS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2952372A1 (en) * 1978-12-28 1980-07-03 Victor Company Of Japan DEVICE FOR DETECTING THE POSITION OF A TAPE IN A MAGNETIC TAPE RECORDING AND / OR PLAYBACK DEVICE
GB2128297A (en) * 1982-10-07 1984-04-26 Vosper Hovermarine Ltd Improvements in or relating to fluid flow control systems
US4529054A (en) * 1982-10-07 1985-07-16 Vosper Hovermarine Limited Fluid flow control systems
EP1255037A1 (en) * 2000-02-07 2002-11-06 Bosch Automotive Systems Corporation Fuel injection device
EP1255037A4 (en) * 2000-02-07 2004-06-30 Bosch Automotive Systems Corp Fuel injection device

Also Published As

Publication number Publication date
FR2252497A1 (en) 1975-06-20
FR2252497B1 (en) 1978-12-29

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee