GB617434A - Improved fuel injection pump - Google Patents

Improved fuel injection pump

Info

Publication number
GB617434A
GB617434A GB22146/46A GB2214646A GB617434A GB 617434 A GB617434 A GB 617434A GB 22146/46 A GB22146/46 A GB 22146/46A GB 2214646 A GB2214646 A GB 2214646A GB 617434 A GB617434 A GB 617434A
Authority
GB
United Kingdom
Prior art keywords
plunger
fuel
injection
ports
edge
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
GB22146/46A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB617434A publication Critical patent/GB617434A/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
    • 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
    • F02M59/24—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke
    • F02M59/26—Varying fuel delivery in quantity or timing with constant-length-stroke pistons having variable effective portion of stroke caused by movements of pistons relative to their cylinders
    • F02M59/28—Mechanisms 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
    • F02M61/165—Filtering elements specially adapted in fuel inlets to injector
    • 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
    • F02M2700/13—Special devices for making an explosive mixture; Fuel pumps
    • F02M2700/1317—Fuel pumpo for internal combustion engines
    • F02M2700/1335—Fuel pump combined with the fuel injector

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

617,434. Fuel-injection pumps. GENERAL MOTORS CORPORATION. July 25, 1946, No. 22146. Convention date, Aug. 17, 1945. [Class 102 (i)] A fuel-injection pump comprises a cylinder 1 provided with a plunger 5 reciprocable in a bore 3, a pumping space 14, an annular filter element 15, and a check valve 21 held on its seat 11 by a spring 23 located between the valve and a spray nozzle 7. The plunger 5 is formed with a pressure relief groove 51 communicating with a slot 55, such that on its working stroke the plunger first closes the fuel inlet port 27 by the edge 53, then closes the drain port 29 by the inclined edge 56 of the slot 55 and at the end of the injection simultaneously opens both ports by the circumferential edge 57 of the groove 51, which causes a relief of pressure in the pumping space 14 through the ports 27 and 29, thereby allowing the quick re-seating of the check valve 21 to prevent any dribbling of fuel through the spray opening 25 in the nozzle 7. A spring 31 which returns the plunger 5 on its filling stroke, is retained and supported on a flange 37 of a plunger control sleeve 39 slidably mounted on the plunger. A control arm 47 integral with the flange 37 is adapted to rotate the plunger by manual control means or a governor to vary the amount of fuel injected by the pump.
GB22146/46A 1945-08-17 1946-07-25 Improved fuel injection pump Expired GB617434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US617434XA 1945-08-17 1945-08-17

Publications (1)

Publication Number Publication Date
GB617434A true GB617434A (en) 1949-02-07

Family

ID=22037839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22146/46A Expired GB617434A (en) 1945-08-17 1946-07-25 Improved fuel injection pump

Country Status (1)

Country Link
GB (1) GB617434A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421286A2 (en) * 1978-03-29 1979-10-26 Friedmann & Maier Ag FUEL INJECTION DEVICE
EP0132798A2 (en) * 1983-07-29 1985-02-13 Robert Bosch Gmbh Injector pump unit for fuel injection at internal-combustion engines
EP0159414A1 (en) * 1984-03-28 1985-10-30 Robert Bosch Gmbh Injector pump unit for fuel injection into internal-combustion engines
DK155099B (en) * 1980-06-27 1989-02-06 Inst Francais Du Petrole COMBINED FUEL PUMP AND INJECTOR FOR COMBUSTION ENGINE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2421286A2 (en) * 1978-03-29 1979-10-26 Friedmann & Maier Ag FUEL INJECTION DEVICE
DK155099B (en) * 1980-06-27 1989-02-06 Inst Francais Du Petrole COMBINED FUEL PUMP AND INJECTOR FOR COMBUSTION ENGINE
EP0132798A2 (en) * 1983-07-29 1985-02-13 Robert Bosch Gmbh Injector pump unit for fuel injection at internal-combustion engines
EP0132798A3 (en) * 1983-07-29 1985-10-30 Robert Bosch Gmbh Injector pump unit for fuel injection at internal-combustion engines
EP0159414A1 (en) * 1984-03-28 1985-10-30 Robert Bosch Gmbh Injector pump unit for fuel injection into internal-combustion engines

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