EP0234240A3 - Fuel injection pump for internal-combustion engines - Google Patents

Fuel injection pump for internal-combustion engines Download PDF

Info

Publication number
EP0234240A3
EP0234240A3 EP87100604A EP87100604A EP0234240A3 EP 0234240 A3 EP0234240 A3 EP 0234240A3 EP 87100604 A EP87100604 A EP 87100604A EP 87100604 A EP87100604 A EP 87100604A EP 0234240 A3 EP0234240 A3 EP 0234240A3
Authority
EP
European Patent Office
Prior art keywords
pressure plate
plate
protrusions
spring
piston
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
EP87100604A
Other languages
German (de)
Other versions
EP0234240A2 (en
EP0234240B1 (en
Inventor
Walter Hafele
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to AT87100604T priority Critical patent/ATE63615T1/en
Publication of EP0234240A2 publication Critical patent/EP0234240A2/en
Publication of EP0234240A3 publication Critical patent/EP0234240A3/en
Application granted granted Critical
Publication of EP0234240B1 publication Critical patent/EP0234240B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F02M59/48—Assembling; Disassembling; Replacing
    • 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

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

A fuel injection pump for internal combustion engines has a pump piston which via a pressure plate rests with a piston bottom on an axially driven tappet with slight play. This contact is brought about by a pressure spring, which is supported on a spring plate so as to grip the piston bottom from behind. To prevent the pressure plate from falling out if the pump piston should become stuck, the spring plate is cup-shaped and includes a cylindrical cup portion having two projecting protrusions. The pressure plate has a radial flange adapted to rest on the projecting protrusions. Those protrusions and the radial flange are adapted to one another such that the pressure plate can be introduced in a predetermined position through the protrusions. The piston bottom located between the pressure plate and the plate bottom of the spring plate prevents the pressure plate from being able to assume a position, after assembly, in which it could slip and escape back outwardly through those protrusions.
EP19870100604 1986-02-18 1987-01-19 Fuel injection pump for internal-combustion engines Expired - Lifetime EP0234240B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87100604T ATE63615T1 (en) 1986-02-18 1987-01-19 FUEL INJECTION PUMP FOR COMBUSTION ENGINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3605056 1986-02-18
DE19863605056 DE3605056A1 (en) 1986-02-18 1986-02-18 FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES

Publications (3)

Publication Number Publication Date
EP0234240A2 EP0234240A2 (en) 1987-09-02
EP0234240A3 true EP0234240A3 (en) 1989-09-27
EP0234240B1 EP0234240B1 (en) 1991-05-15

Family

ID=6294328

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19870100604 Expired - Lifetime EP0234240B1 (en) 1986-02-18 1987-01-19 Fuel injection pump for internal-combustion engines

Country Status (6)

Country Link
US (1) US4728269A (en)
EP (1) EP0234240B1 (en)
JP (1) JPS62191663A (en)
AT (1) ATE63615T1 (en)
BR (1) BR8700709A (en)
DE (2) DE3605056A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8708761U1 (en) * 1987-06-24 1988-10-20 Robert Bosch Gmbh, 7000 Stuttgart, De
GB9012843D0 (en) * 1990-06-08 1990-08-01 Lucas Ind Plc Fuel injection apparatus
US5520155A (en) * 1994-07-28 1996-05-28 Caterpillar Inc. Tappet and plunger assembly adapted for a fluid injection pump
DE19633844B4 (en) * 1995-09-02 2006-05-11 Volkswagen Ag Expansion valve in an air conditioner
JP3497831B2 (en) * 2000-05-01 2004-02-16 アドバンス電気工業株式会社 injector
ITMI20120270A1 (en) * 2012-02-23 2013-08-24 Bosch Gmbh Robert HIGH PRESSURE PUMP FOR FUEL SUPPLY TO AN INTERNAL COMBUSTION ENGINE
CN103670856A (en) * 2012-09-25 2014-03-26 重庆长安汽车股份有限公司 Installation base of high-pressure oil pump of engine
GB201600766D0 (en) * 2016-01-15 2016-03-02 Delphi Internat Operations Luxembourg S À R L Fuel pump
DE102020104313B3 (en) * 2020-02-19 2021-01-28 Schaeffler Technologies AG & Co. KG Plunger for acting on a pump piston of a high-pressure fuel pump
US20230374962A1 (en) * 2020-10-30 2023-11-23 Hitachi Astemo, Ltd. Fuel Pump

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR860603A (en) * 1938-10-06 1941-01-20 Bendix Aviat Corp Improvements to pumps
FR1405750A (en) * 1964-08-25 1965-07-09 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
DE2314596A1 (en) * 1972-04-05 1973-10-11 Friedmann & Maier Ag INJECTION PUMP FOR COMBUSTION MACHINES
US4335685A (en) * 1979-10-19 1982-06-22 Caterpillar Tractor Co. Lifter assembly
GB2123491A (en) * 1982-07-08 1984-02-01 Lucas Ind Plc Reciprocable plunger fuel injection pump
DE3501287A1 (en) * 1984-01-18 1985-07-25 Friedmann & Maier AG, Hallein, Salzburg Injection pump for injection internal combustion engines
GB2155560A (en) * 1984-03-14 1985-09-25 Bosch Gmbh Robert A fuel injection pump for internal combustion engines

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT201352B (en) * 1956-08-21 1958-12-27 Bosch Gmbh Robert Injection pump for internal combustion engines
DE1258188B (en) * 1964-07-10 1968-01-04 Bosch Gmbh Robert Fuel injection pump for multi-cylinder internal combustion engines
DE3128544A1 (en) * 1981-07-18 1983-02-03 Robert Bosch Gmbh, 7000 Stuttgart INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
IT1163414B (en) * 1982-07-08 1987-04-08 Lucas Ind Plc ALTERNATIVELY MOBILE PISTON FUEL INJECTION PUMP

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR860603A (en) * 1938-10-06 1941-01-20 Bendix Aviat Corp Improvements to pumps
FR1405750A (en) * 1964-08-25 1965-07-09 Bosch Gmbh Robert Fuel injection pump for internal combustion engines
DE2314596A1 (en) * 1972-04-05 1973-10-11 Friedmann & Maier Ag INJECTION PUMP FOR COMBUSTION MACHINES
US4335685A (en) * 1979-10-19 1982-06-22 Caterpillar Tractor Co. Lifter assembly
GB2123491A (en) * 1982-07-08 1984-02-01 Lucas Ind Plc Reciprocable plunger fuel injection pump
DE3501287A1 (en) * 1984-01-18 1985-07-25 Friedmann & Maier AG, Hallein, Salzburg Injection pump for injection internal combustion engines
GB2155560A (en) * 1984-03-14 1985-09-25 Bosch Gmbh Robert A fuel injection pump for internal combustion engines

Also Published As

Publication number Publication date
EP0234240A2 (en) 1987-09-02
BR8700709A (en) 1987-12-15
DE3605056A1 (en) 1987-08-20
JPS62191663A (en) 1987-08-22
EP0234240B1 (en) 1991-05-15
ATE63615T1 (en) 1991-06-15
DE3770017D1 (en) 1991-06-20
US4728269A (en) 1988-03-01

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