FR2389007A1 - FUEL INJECTION PUMP - Google Patents

FUEL INJECTION PUMP

Info

Publication number
FR2389007A1
FR2389007A1 FR7801702A FR7801702A FR2389007A1 FR 2389007 A1 FR2389007 A1 FR 2389007A1 FR 7801702 A FR7801702 A FR 7801702A FR 7801702 A FR7801702 A FR 7801702A FR 2389007 A1 FR2389007 A1 FR 2389007A1
Authority
FR
France
Prior art keywords
piston
fuel injection
orifice
injection pump
fuel
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.)
Granted
Application number
FR7801702A
Other languages
French (fr)
Other versions
FR2389007B1 (en
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.)
ZF International UK Ltd
Original Assignee
Lucas Industries 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 Lucas Industries Ltd filed Critical Lucas Industries Ltd
Publication of FR2389007A1 publication Critical patent/FR2389007A1/en
Application granted granted Critical
Publication of FR2389007B1 publication Critical patent/FR2389007B1/fr
Granted 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
    • F02M59/44—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
    • F02M59/442—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 preventing fuel leakage around pump plunger, e.g. fluid barriers
    • 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
    • F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
    • F02M55/001—Pumps with means for preventing erosion on fuel discharge

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Reciprocating Pumps (AREA)

Abstract

Cette pompe d'injection de combustible comprend un piston 10 à mouvement de va-et-vient disposé dans l'alésage d'un cylindre 8. Le cylindre comporte deux orifices 14, 14a qui sont recouverts par le piston lorsque ce dernier se déplace pour effectuer une course d'injection. La fin de la course d'injection est obtenue au moyen d'une gorge prévue dans le piston et qui découvre l'orifice 14. La pompe comprend un conduit qui se termine par un orifice 20 formé dans le second orifice 14a de ladite paire d'orifices et pendant la course de pompage du piston, du combustible s'écoule à travers le conduit pour chasser du second orifice 14a toutes cavités qui pourraient s'être formées dans le combustible se trouvant dans le second orifice 14a.This fuel injection pump comprises a reciprocating piston 10 arranged in the bore of a cylinder 8. The cylinder has two orifices 14, 14a which are covered by the piston when the latter moves to perform an injection stroke. The end of the injection stroke is obtained by means of a groove provided in the piston and which uncovers the orifice 14. The pump comprises a duct which ends with an orifice 20 formed in the second orifice 14a of said pair of The orifices and during the pumping stroke of the piston, fuel flows through the conduit to expel from the second port 14a any cavities which may have formed in the fuel in the second port 14a.

FR7801702A 1977-04-30 1978-01-20 FUEL INJECTION PUMP Granted FR2389007A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18173/77A GB1594472A (en) 1977-04-30 1977-04-30 Fuel injection pumps

Publications (2)

Publication Number Publication Date
FR2389007A1 true FR2389007A1 (en) 1978-11-24
FR2389007B1 FR2389007B1 (en) 1982-11-19

Family

ID=10107903

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7801702A Granted FR2389007A1 (en) 1977-04-30 1978-01-20 FUEL INJECTION PUMP

Country Status (9)

Country Link
JP (1) JPS53136125A (en)
CA (1) CA1076881A (en)
DE (1) DE2802510A1 (en)
ES (1) ES465815A1 (en)
FR (1) FR2389007A1 (en)
GB (1) GB1594472A (en)
IT (1) IT1092311B (en)
MX (1) MX146040A (en)
SU (1) SU1003767A3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114205A1 (en) * 1983-01-03 1984-08-01 Klöckner-Humboldt-Deutz Aktiengesellschaft Injection pump for diesel engines
WO1989011035A1 (en) * 1988-05-09 1989-11-16 Hei-Tech B.V. Plunger pump arrangement

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT404058B (en) * 1986-09-10 1998-08-25 Bosch Robert Ag PUMP ELEMENT OF A FUEL INJECTION PUMP FOR INJECTION COMBUSTION ENGINES

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB334437A (en) * 1928-12-10 1930-09-04 Robert Bosch Aktiengesellschaft
DE526537C (en) * 1927-02-26 1931-06-06 Acro Akt Ges Fuel pump system for injection internal combustion engines
US2410947A (en) * 1943-04-19 1946-11-12 Caterpillar Tractor Co Fuel injection pum mechanism
DE861343C (en) * 1951-05-24 1952-12-29 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
GB695080A (en) * 1950-10-19 1953-08-05 Bosch Gmbh Robert Improvements in the regulation of the fuel delivery of injection pumps, particularlyfor compression-ignition engines
DE1067636B (en) * 1956-11-17 1959-10-22 Bosch Gmbh Robert Fuel injection pump, especially for internal combustion engines working with external ignition

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE526537C (en) * 1927-02-26 1931-06-06 Acro Akt Ges Fuel pump system for injection internal combustion engines
GB334437A (en) * 1928-12-10 1930-09-04 Robert Bosch Aktiengesellschaft
US2410947A (en) * 1943-04-19 1946-11-12 Caterpillar Tractor Co Fuel injection pum mechanism
GB695080A (en) * 1950-10-19 1953-08-05 Bosch Gmbh Robert Improvements in the regulation of the fuel delivery of injection pumps, particularlyfor compression-ignition engines
DE861343C (en) * 1951-05-24 1952-12-29 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
DE1067636B (en) * 1956-11-17 1959-10-22 Bosch Gmbh Robert Fuel injection pump, especially for internal combustion engines working with external ignition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0114205A1 (en) * 1983-01-03 1984-08-01 Klöckner-Humboldt-Deutz Aktiengesellschaft Injection pump for diesel engines
WO1989011035A1 (en) * 1988-05-09 1989-11-16 Hei-Tech B.V. Plunger pump arrangement

Also Published As

Publication number Publication date
DE2802510A1 (en) 1978-11-02
IT7819371A0 (en) 1978-01-18
SU1003767A3 (en) 1983-03-07
JPS53136125A (en) 1978-11-28
CA1076881A (en) 1980-05-06
IT1092311B (en) 1985-07-06
ES465815A1 (en) 1978-09-16
MX146040A (en) 1982-05-04
GB1594472A (en) 1981-07-30
FR2389007B1 (en) 1982-11-19

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Legal Events

Date Code Title Description
ST Notification of lapse