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GB556742A - Improvements in and relating to fuel injection in internal combustion engines - Google Patents

Improvements in and relating to fuel injection in internal combustion engines

Info

Publication number
GB556742A
GB556742A GB346642A GB346642A GB556742A GB 556742 A GB556742 A GB 556742A GB 346642 A GB346642 A GB 346642A GB 346642 A GB346642 A GB 346642A GB 556742 A GB556742 A GB 556742A
Authority
GB
United Kingdom
Prior art keywords
plunger
pump
spring
valve
passage
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
GB346642A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB346642A priority Critical patent/GB556742A/en
Publication of GB556742A publication Critical patent/GB556742A/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
    • F02M57/00—Fuel-injectors combined or associated with other devices
    • F02M57/02—Injectors structurally combined with fuel-injection pumps
    • 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
    • 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • 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
    • F02M2700/00—Supplying, feeding or preparing air, fuel, fuel air mixtures or auxiliary fluids for a combustion engine; Use of exhaust gas; Compressors for piston engines
    • F02M2700/07—Nozzles and injectors with controllable fuel supply

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

556,742. Fuel-injection pumps. KAMMER, G. S. March 16, 1942, No. 3466. [Class 102 (i)] [Also in Group XXVII] In fuel injectors of the kind giving successive injections at substantially different rates, for example as described in Specification 542,844, the excess pressure which would otherwise be built up behind the pilot jets before the main jets open is relieved by yieldable means provided either in the drive for the fuel pump, or in the space between the pump plunger and the injection nozzles. Fig. 1 shows a spring 15 inserted between the pump plunger 2 and the cam-operated tappet 21 driving the pump. The plunger 2 is connected at 42 to a guide piston 14 sliding in the tappet 21 which is also provided with a spring 17. The pump cylinder 6 is continuously connected by a passage 8 to the pilot jet 12 past a valve 11, and is further connected to the main jets 13 also fitted with a valve 11, by a passage 9 controlled by the plunger 2. The passage 9 is opened by a groove 41 in the plunger 2 to allow the main injection when the spring 15 is compressed solid, with its coils in contact. Inlet to the pump is by a chamber 4 closed by a sleeve 5, and the plunger is rotatable by a lever 22 for adjusting the timing. In a modification the tappet 21 actuates the pump plunger through a lever. In Fig. 6 the yieldable means is in the form of a byepass 32 controlled by the pump 2 and fitted, if desired, with a spring-pressed valve 33. The plunger is adjusted by rack and pinion 24, 25. The pump may be provided with a check valve in communication with the cylinder 6 and adjustable as the plunger is rotated. The pump may be provided with a check valve in communication with the cylinder 6 and adjustable as the plunger is rotated. Cooling-fins may be provided on the pump body 1 around the plunger 2.
GB346642A 1942-03-16 1942-03-16 Improvements in and relating to fuel injection in internal combustion engines Expired GB556742A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB346642A GB556742A (en) 1942-03-16 1942-03-16 Improvements in and relating to fuel injection in internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB346642A GB556742A (en) 1942-03-16 1942-03-16 Improvements in and relating to fuel injection in internal combustion engines

Publications (1)

Publication Number Publication Date
GB556742A true GB556742A (en) 1943-10-20

Family

ID=9758848

Family Applications (1)

Application Number Title Priority Date Filing Date
GB346642A Expired GB556742A (en) 1942-03-16 1942-03-16 Improvements in and relating to fuel injection in internal combustion engines

Country Status (1)

Country Link
GB (1) GB556742A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198610B (en) * 1961-09-01 1965-08-12 Linde Eismasch Ag Fuel injection device for internal combustion piston engines
DE2618008A1 (en) * 1976-04-24 1977-11-03 Cummins Engine Co Inc Mechanically actuated diesel engine fuel injector - has auxiliary return spring to give two different injection speeds
USRE30189E (en) * 1973-07-02 1980-01-15 Cummins Engine Company Fuel injection system for diesel engines
DE3239115A1 (en) * 1981-11-09 1983-05-19 Kabushiki Kaisha Komatsu Seisakusho, Tokyo METHOD AND DEVICE FOR INJECTING FUEL FOR A DIESEL ENGINE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1198610B (en) * 1961-09-01 1965-08-12 Linde Eismasch Ag Fuel injection device for internal combustion piston engines
USRE30189E (en) * 1973-07-02 1980-01-15 Cummins Engine Company Fuel injection system for diesel engines
DE2618008A1 (en) * 1976-04-24 1977-11-03 Cummins Engine Co Inc Mechanically actuated diesel engine fuel injector - has auxiliary return spring to give two different injection speeds
DE3239115A1 (en) * 1981-11-09 1983-05-19 Kabushiki Kaisha Komatsu Seisakusho, Tokyo METHOD AND DEVICE FOR INJECTING FUEL FOR A DIESEL ENGINE

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