GB2016588A - Fuel system for a multi-cylinder engine - Google Patents

Fuel system for a multi-cylinder engine

Info

Publication number
GB2016588A
GB2016588A GB7901758A GB7901758A GB2016588A GB 2016588 A GB2016588 A GB 2016588A GB 7901758 A GB7901758 A GB 7901758A GB 7901758 A GB7901758 A GB 7901758A GB 2016588 A GB2016588 A GB 2016588A
Authority
GB
United Kingdom
Prior art keywords
fuel
pilot
inlets
flow
inlet
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
GB7901758A
Other versions
GB2016588B (en
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
Priority to GB7901758A priority Critical patent/GB2016588B/en
Publication of GB2016588A publication Critical patent/GB2016588A/en
Application granted granted Critical
Publication of GB2016588B publication Critical patent/GB2016588B/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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/002—Arrangement of leakage or drain conduits in or from injectors
    • 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
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M45/00—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship
    • F02M45/02—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts
    • F02M45/04—Fuel-injection apparatus characterised by having a cyclic delivery of specific time/pressure or time/quantity relationship with each cyclic delivery being separated into two or more parts with a small initial part, e.g. initial part for partial load and initial and main part for full load

Abstract

Each injection nozzle 10 of a plurality incorporates a resiliently loaded pressure actuated valve member 16 which controls the flow of fuel through an outlet 14 from a fuel inlet 17. A fuel pump 11 is provided for supplying fuel to the inlets 17 in turn. Pilot pumps 20 incorporated in the nozzles respectively cause a small volume of fuel to be delivered through the respective outlets in advance of the main volume of fuel. Pilot inlets 21 on the injection nozzles respectively receive liquid under pressure in turn from a pump 12 to actuate the respective pilot pumps and each nozzle incorporates a non-return valve 23 disposed to allow fuel which has leaked past the respective valve member 16 to flow to the respective pilot inlet when the liquid pressure at the pilot inlet is sufficiently low. Passages 39, 40 connect the pilot inlets to a drain during at least part of the time when liquid is not being delivered thereto whereby the fuel which has leaked past the valve members 16 can flow by way of non-return valves 23 to the drain. The pump cam rings 27 and 38 are simultaneously or individually adjustable to vary the injection timing. <IMAGE>
GB7901758A 1978-03-21 1979-01-17 Fuel system for a multi-cylinder engine Expired GB2016588B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7901758A GB2016588B (en) 1978-03-21 1979-01-17 Fuel system for a multi-cylinder engine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1104478 1978-03-21
GB7901758A GB2016588B (en) 1978-03-21 1979-01-17 Fuel system for a multi-cylinder engine

Publications (2)

Publication Number Publication Date
GB2016588A true GB2016588A (en) 1979-09-26
GB2016588B GB2016588B (en) 1982-08-11

Family

ID=26247986

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7901758A Expired GB2016588B (en) 1978-03-21 1979-01-17 Fuel system for a multi-cylinder engine

Country Status (1)

Country Link
GB (1) GB2016588B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3003904A1 (en) * 1980-02-02 1981-08-06 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München ELECTRONICALLY CONTROLLED FUEL INJECTION FOR INTERNAL COMBUSTION ENGINES
EP0142631A2 (en) * 1983-08-26 1985-05-29 Robert Bosch Gmbh Fuel injection device for the predefined injection of internal-combustion engines

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3003904A1 (en) * 1980-02-02 1981-08-06 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München ELECTRONICALLY CONTROLLED FUEL INJECTION FOR INTERNAL COMBUSTION ENGINES
EP0142631A2 (en) * 1983-08-26 1985-05-29 Robert Bosch Gmbh Fuel injection device for the predefined injection of internal-combustion engines
EP0142631A3 (en) * 1983-08-26 1987-05-27 Robert Bosch Gmbh Fuel injection device for the predefined injection of internal-combustion engines

Also Published As

Publication number Publication date
GB2016588B (en) 1982-08-11

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Legal Events

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