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EP0381343A3 - Fuel pumping apparatus - Google Patents

Fuel pumping apparatus Download PDF

Info

Publication number
EP0381343A3
EP0381343A3 EP19900300571 EP90300571A EP0381343A3 EP 0381343 A3 EP0381343 A3 EP 0381343A3 EP 19900300571 EP19900300571 EP 19900300571 EP 90300571 A EP90300571 A EP 90300571A EP 0381343 A3 EP0381343 A3 EP 0381343A3
Authority
EP
European Patent Office
Prior art keywords
fuel
piston
associated engine
plunger
bore
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
EP19900300571
Other languages
German (de)
French (fr)
Other versions
EP0381343B1 (en
EP0381343A2 (en
Inventor
Peter Alban George Collingburn
Derek Wallace Thomsett
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
Priority claimed from GB898901900A external-priority patent/GB8901900D0/en
Priority claimed from GB898902862A external-priority patent/GB8902862D0/en
Application filed by Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of EP0381343A2 publication Critical patent/EP0381343A2/en
Publication of EP0381343A3 publication Critical patent/EP0381343A3/en
Application granted granted Critical
Publication of EP0381343B1 publication Critical patent/EP0381343B1/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
    • F02M59/36—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages
    • F02M59/365—Varying fuel delivery in quantity or timing by variably-timed valves controlling fuel passages to pumping elements or overflow passages valves being actuated by the fluid pressure produced in an auxiliary pump, e.g. pumps with differential pistons; Regulated pressure of supply pump actuating a metering valve, e.g. a sleeve surrounding the pump piston
    • 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
    • F02M41/1411—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 characterised by means for varying fuel delivery or injection timing

Landscapes

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

Abstract

A fuel pumping apparatus of the rotary distributor type comprises a distributor member (12) rotatable in a body (10) in timed relationship with an associated engine, a pumping plunger housed within a bore (13) and movable inwardly to displace fuel to the associated engine, by means of a cam (13B) and a valve member (23) which is spring biased to the closed position and which can be moved to an open position to allow fuel to escape from the bore (13), by means of fluid pressure applied to a piston (26) which is coupled to the valve member. Fluid under pressure is applied to the piston under the control of a slidable shuttle (34) which is actuated by a further plunger in timed relationship with the first mentioned plunger. The extent of movement of the shuttle before fluid under pressure is applied to the piston 26 can be controlled so as to determined the amount of fuel supplied to the associated engine.
EP19900300571 1989-01-28 1990-01-19 Fuel pumping apparatus Expired EP0381343B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB898901900A GB8901900D0 (en) 1989-01-28 1989-01-28 Fuel pumping apparatus
GB8901900 1989-01-28
GB8902862 1989-02-09
GB898902862A GB8902862D0 (en) 1989-02-09 1989-02-09 Fuel pumping apparatus

Publications (3)

Publication Number Publication Date
EP0381343A2 EP0381343A2 (en) 1990-08-08
EP0381343A3 true EP0381343A3 (en) 1991-04-10
EP0381343B1 EP0381343B1 (en) 1992-12-16

Family

ID=26294889

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900300571 Expired EP0381343B1 (en) 1989-01-28 1990-01-19 Fuel pumping apparatus

Country Status (3)

Country Link
EP (1) EP0381343B1 (en)
DE (1) DE69000580T2 (en)
ES (1) ES2037520T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9016642D0 (en) * 1990-07-28 1990-09-12 Lucas Ind Plc Fuel pumping apparatus
DE69200594T2 (en) * 1991-02-16 1995-03-30 Lucas Ind Plc Fuel pump.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161546A (en) * 1984-07-13 1986-01-15 Lucas Ind Plc Fuel injection pumping apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2161546A (en) * 1984-07-13 1986-01-15 Lucas Ind Plc Fuel injection pumping apparatus

Also Published As

Publication number Publication date
DE69000580D1 (en) 1993-01-28
EP0381343B1 (en) 1992-12-16
EP0381343A2 (en) 1990-08-08
DE69000580T2 (en) 1993-06-24
ES2037520T3 (en) 1993-06-16

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