GB748243A - Liquid fuel injection pumps for internal combustion engines - Google Patents

Liquid fuel injection pumps for internal combustion engines

Info

Publication number
GB748243A
GB748243A GB3571553A GB3571553A GB748243A GB 748243 A GB748243 A GB 748243A GB 3571553 A GB3571553 A GB 3571553A GB 3571553 A GB3571553 A GB 3571553A GB 748243 A GB748243 A GB 748243A
Authority
GB
United Kingdom
Prior art keywords
valve
passage
fuel
piston
pump
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
GB3571553A
Inventor
Fraser Mackie Evans
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 GB3571553A priority Critical patent/GB748243A/en
Publication of GB748243A publication Critical patent/GB748243A/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
    • 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
    • F02M59/22—Varying quantity or timing by adjusting cylinder-head space
    • 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
    • F02M59/447—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 means specially adapted to limit fuel delivery or to supply excess of fuel temporarily, e.g. for starting of the engine

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

748,243. Fuel-injection pumps. C.A.V., Ltd. Dec. 3, 1954 [Dec. 23, 1953], No. 35715/53. Class 102(1). In a fuel-injection pump, the pumping chamber g of the, or each, cylinder a is connected to a chamber h in which slides a piston j, the rear face of which is exposed to the pressure of the fuel in a passage i leading to the inlet passage to the pump ; the passage i is controlled by a valve n. When the valve n is open, the piston reciprocates freely to an extent limited by the shoulder k and an adjustable stop k<SP>1</SP> but when the valve n is closed the reciprocation ceases and extra fuel is delivered by the pump. As shown in Fig. 3, the valve is opened by the pressure in the inlet acting on a piston m<SP>1</SP> loaded by a spring p ; the valve may be actuated manually. A throttling restriction may be provided in the passage i and the valve may have a shaped end to effect a variable throttling of the passage after opening. Fig. 6 shows an arrangement in which a pair of radially opposed pistons v are actuated by a cam wand carried in a rotor t that distributes fuel to several outlets 7.. The piston j is mounted in the rotor t and is controlled by the valve n arranged in the outlet of the feed pump x.
GB3571553A 1953-12-23 1953-12-23 Liquid fuel injection pumps for internal combustion engines Expired GB748243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3571553A GB748243A (en) 1953-12-23 1953-12-23 Liquid fuel injection pumps for internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3571553A GB748243A (en) 1953-12-23 1953-12-23 Liquid fuel injection pumps for internal combustion engines

Publications (1)

Publication Number Publication Date
GB748243A true GB748243A (en) 1956-04-25

Family

ID=10380778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3571553A Expired GB748243A (en) 1953-12-23 1953-12-23 Liquid fuel injection pumps for internal combustion engines

Country Status (1)

Country Link
GB (1) GB748243A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015568A1 (en) * 1968-08-13 1970-04-30 Cav Ltd
EP0315564A1 (en) * 1987-11-02 1989-05-10 Stanadyne Automotive Corp. Electronic unit injector
FR2624915A1 (en) * 1987-12-22 1989-06-23 Bosch Gmbh Robert FUEL INJECTION UNIT FOR INTERNAL COMBUSTION ENGINES COMPRISING THE CLOSING PISTON, ONE OF THE TWO SURFACES WHICH IS SMALLER THAN EACH OTHER
CN107120220A (en) * 2017-06-30 2017-09-01 南岳电控（衡阳）工业技术股份有限公司 A kind of injection pump for preventing diesel engine starting difficult

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2015568A1 (en) * 1968-08-13 1970-04-30 Cav Ltd
EP0315564A1 (en) * 1987-11-02 1989-05-10 Stanadyne Automotive Corp. Electronic unit injector
FR2624915A1 (en) * 1987-12-22 1989-06-23 Bosch Gmbh Robert FUEL INJECTION UNIT FOR INTERNAL COMBUSTION ENGINES COMPRISING THE CLOSING PISTON, ONE OF THE TWO SURFACES WHICH IS SMALLER THAN EACH OTHER
CN107120220A (en) * 2017-06-30 2017-09-01 南岳电控（衡阳）工业技术股份有限公司 A kind of injection pump for preventing diesel engine starting difficult
CN107120220B (en) * 2017-06-30 2023-08-29 南岳电控（衡阳）工业技术股份有限公司 Fuel injection pump for preventing difficult starting of diesel engine

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