GB952136A - Improvements relating to a fuel injection pump and distributor for a multi-cylinder internal combustion engine - Google Patents

Improvements relating to a fuel injection pump and distributor for a multi-cylinder internal combustion engine

Info

Publication number
GB952136A
GB952136A GB833062A GB833062A GB952136A GB 952136 A GB952136 A GB 952136A GB 833062 A GB833062 A GB 833062A GB 833062 A GB833062 A GB 833062A GB 952136 A GB952136 A GB 952136A
Authority
GB
United Kingdom
Prior art keywords
feed pump
piston
pump
fuel
rotor
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
GB833062A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB952136A publication Critical patent/GB952136A/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
    • 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
    • F02M41/1427—Arrangements for metering fuel admitted to pumping chambers, e.g. by shuttles or by throttle-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
    • 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
    • F02M2041/1438—Arrangements or details pertaining to the devices classified in F02M41/14 and subgroups
    • F02M2041/1444—Feed-pumps; Arrangements or pressure regulation therefor
    • 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
    • F02M2041/1438—Arrangements or details pertaining to the devices classified in F02M41/14 and subgroups
    • F02M2041/1455—Shuttles per se, or shuttles associated with throttle valve for metering fuel admitted to the pumping chamber

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

952,136. Fuel injection pumps. ROBERT BOSCH G.m.b.H..March 5, 1962 [March 6, 1961], No. 8330/62. Heading F1A. In a combined fuel injection pump and distributer comprising a rotor 3, Fig. 2, housing opposed pistons 1, 11 reciprocated by a cam track 7 and fed by a rotary feed pump 16, the quantity of fuel reaching the pump chamber 2 is controlled by a free piston 20, Fig. 3, located in the delivery line of the feed pump. Fuel from the feed pump is delivered to piston 20 via passages 35, 17, 15 and grooves 10 and 9 in rotor 3. During rotation of rotor 3 grooves 9 align alternately with passages 23 and 13 leading to chambers 21, 22 on opposite sides of piston 20, the chamber not open to feed pump delivery delivering its contents to the injection pump chamber 2 via passages 8 and 11. The stroke of piston 20 determines the quantity supplied to pump chamber 2 and is controlled by a fixed stop 25, preset for maximum delivery, and a movable stop 26 controlled by a tapered, spring-loaded piston 29 acted upon, via passages 17, 27, 19, by the feed pump pressure which is proportional to engine speed. Manual control of the engine speed is effected by varying the output pressure of the feed pump, and thereby varying the stroke of piston 20, by means of a throttle member 36 in a spill passage 35 leading from the feed pump delivery line 17. The injection pump output is distributed via passages 11 and 12 to a plurality of injector supply conduits 14. Preset stops 25 and 32 may be movable to provide extra fuel for starting and means for stopping the engine, respectively. A relief valve 34 is provided to limit the maximum pressure of the fuel supplied by the feed pump.
GB833062A 1961-03-06 1962-03-05 Improvements relating to a fuel injection pump and distributor for a multi-cylinder internal combustion engine Expired GB952136A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP702561 1961-03-06

Publications (1)

Publication Number Publication Date
GB952136A true GB952136A (en) 1964-03-11

Family

ID=11654485

Family Applications (1)

Application Number Title Priority Date Filing Date
GB833062A Expired GB952136A (en) 1961-03-06 1962-03-05 Improvements relating to a fuel injection pump and distributor for a multi-cylinder internal combustion engine

Country Status (1)

Country Link
GB (1) GB952136A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970414A (en) * 1974-01-04 1976-07-20 C.A.V. Limited Liquid fuel injection pumping apparatus
DE3001166A1 (en) * 1980-01-15 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION SYSTEM
DE3017275A1 (en) * 1980-05-06 1981-11-12 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION PUMP FOR SELF-IGNITIONING INTERNAL COMBUSTION ENGINES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3970414A (en) * 1974-01-04 1976-07-20 C.A.V. Limited Liquid fuel injection pumping apparatus
DE3001166A1 (en) * 1980-01-15 1981-07-23 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION SYSTEM
DE3017275A1 (en) * 1980-05-06 1981-11-12 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION PUMP FOR SELF-IGNITIONING INTERNAL COMBUSTION ENGINES

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