GB540616A - Fuel injection apparatus - Google Patents

Fuel injection apparatus

Info

Publication number
GB540616A
GB540616A GB7244/40A GB724440A GB540616A GB 540616 A GB540616 A GB 540616A GB 7244/40 A GB7244/40 A GB 7244/40A GB 724440 A GB724440 A GB 724440A GB 540616 A GB540616 A GB 540616A
Authority
GB
United Kingdom
Prior art keywords
ports
valve
pump
adaptor
fuel injection
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
GB7244/40A
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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 Bendix Aviation Corp filed Critical Bendix Aviation Corp
Publication of GB540616A publication Critical patent/GB540616A/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
    • 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
    • F02M59/02—Pumps specially adapted for fuel-injection and not provided for in groups F02M39/00 -F02M57/00, e.g. rotary cylinder-block type of pumps of reciprocating-piston or reciprocating-cylinder type
    • 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
    • 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
    • F02M2700/1388—Fuel pump with control of the piston relative to a fixed cylinder

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

540,616. Fuel injection pumps. BENDIX AVIATION CORPORATION. April 22, 1940, No. 7244. Convention date, May 2, 1939. [Class 102 (i)] In a fuel injection pump the cylinder 7 is formed with one or more relatively small pressure relief ports 52 in constant communication with the supply passage 44 or other lowpressure chamber outside the cylinder, the ports 52 being circumferentially spaced from, and preferably diametrically opposite, inlet and byepass ports 11, 12. The ports 52 tend to balance the pressure on the two sides of the plunger 13 and reduce wear adjacent the ports 11, 12. Lubrication, and additional pressure balancing, may be effected by means of a helical groove 17 in the plunger diametrically opposite, and somewhat smaller than, the helical metering groove 16. To prevent erosion at the ports 11, 12, the pump casing 5 may be fitted with a stainless steel insert 41 which is channel-shaped in radial cross-section and formed on one side with grooves 47, 48 in communication with the fuel supply passage 44. The insert 41 may be fitted with a hardened steel plug 50 opposite the byepass port 12. The plug 50 and another plug 51 serve to vent the pump when it is in a horizontal or vertical position respectively. The end of the pressure chamber is formed by an adaptor 30 having a differential cylindrical passage containing a delivery valve 31. The latter comprises a tapered head part 38, a grooved central part 36, and an upper piston part 37 ; it is controlled by a spring 39 surrounding a tubular stop member 40. After the valve 31 has been closed, its continued downward movement in the adaptor 30 obviates any dribbling of fuel at the nozzle. Any air that accumulates in the pressure chamber is trapped in the grooves in the central part 36 when the valve 31 snaps back on to its seat. This is repeated until the air is compressed sufficiently to open valve 31 and move the part 37 out of the adaptor 30, thereby automatically preventing the pump becoming airbound.
GB7244/40A 1939-05-02 1940-04-22 Fuel injection apparatus Expired GB540616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540616XA 1939-05-02 1939-05-02

Publications (1)

Publication Number Publication Date
GB540616A true GB540616A (en) 1941-10-23

Family

ID=21988527

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7244/40A Expired GB540616A (en) 1939-05-02 1940-04-22 Fuel injection apparatus

Country Status (1)

Country Link
GB (1) GB540616A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922581A (en) * 1954-06-14 1960-01-26 Bendix Aviat Corp Fuel injection apparatus
EP0020500A1 (en) * 1978-10-06 1981-01-07 Caterpillar Tractor Co Fuel injection pump.
GB2307282A (en) * 1995-11-18 1997-05-21 Bosch Gmbh Robert Fuel injection pump for an internal combustion engine
GB2307281A (en) * 1995-11-18 1997-05-21 Bosch Gmbh Robert Fuel-injection pump for internal combustion engines
CN110671249A (en) * 2019-09-25 2020-01-10 南京威孚金宁有限公司 Distribution pump plunger with oil outlet valve and working method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2922581A (en) * 1954-06-14 1960-01-26 Bendix Aviat Corp Fuel injection apparatus
EP0020500A1 (en) * 1978-10-06 1981-01-07 Caterpillar Tractor Co Fuel injection pump.
EP0020500A4 (en) * 1978-10-06 1981-01-28 Caterpillar Tractor Co Fuel injection pump.
GB2307282A (en) * 1995-11-18 1997-05-21 Bosch Gmbh Robert Fuel injection pump for an internal combustion engine
GB2307281A (en) * 1995-11-18 1997-05-21 Bosch Gmbh Robert Fuel-injection pump for internal combustion engines
FR2741394A1 (en) * 1995-11-18 1997-05-23 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINE
US5692475A (en) * 1995-11-18 1997-12-02 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
GB2307282B (en) * 1995-11-18 1997-12-17 Bosch Gmbh Robert Fuel injection pump for an internal combustion engine
GB2307281B (en) * 1995-11-18 1998-04-08 Bosch Gmbh Robert Fuel-injection pump for internal combustion engines
US5782620A (en) * 1995-11-18 1998-07-21 Robert Bosch Gmbh Fuel injection pump for internal combustion engines
CN110671249A (en) * 2019-09-25 2020-01-10 南京威孚金宁有限公司 Distribution pump plunger with oil outlet valve and working method thereof
CN110671249B (en) * 2019-09-25 2023-07-07 南京威孚金宁有限公司 Distribution pump plunger with oil outlet valve and working method thereof

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