ATE239868T1 - FUEL INJECTION PUMP - Google Patents

FUEL INJECTION PUMP

Info

Publication number
ATE239868T1
ATE239868T1 AT99113205T AT99113205T ATE239868T1 AT E239868 T1 ATE239868 T1 AT E239868T1 AT 99113205 T AT99113205 T AT 99113205T AT 99113205 T AT99113205 T AT 99113205T AT E239868 T1 ATE239868 T1 AT E239868T1
Authority
AT
Austria
Prior art keywords
duct
fuel
piston
high pressure
timing
Prior art date
Application number
AT99113205T
Other languages
German (de)
Inventor
Rolf Prillwitz
Original Assignee
Orange 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 Orange Gmbh filed Critical Orange Gmbh
Application granted granted Critical
Publication of ATE239868T1 publication Critical patent/ATE239868T1/en

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
    • F02M59/20—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
    • F02M59/265—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 characterised by the arrangement or form of spill port of spill contour on the piston
    • 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)

Abstract

A high pressure fuel pump for an IC engine, e.g. for a diesel engine, has a piston (2) driven by a camshaft and with its upper end (5) bounded by the high pressure chamber (3). A duct through the piston links input control ducts (4a,4b) to control the timing of the fuel pulses. The duct has an upper edge (6) and a sloping lower edge (7a) to define the start and closing points of the fuel timing. The rotational setting of the piston varies the closing setting of the pump. A bypass duct (20) provides a controlled bypass flow at the bottom of the sloping duct to provide a controlled termination of the fuel pulse, and hence a reduction in cavitation.
AT99113205T 1998-07-10 1999-07-08 FUEL INJECTION PUMP ATE239868T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19831078A DE19831078A1 (en) 1998-07-10 1998-07-10 Fuel injection pump

Publications (1)

Publication Number Publication Date
ATE239868T1 true ATE239868T1 (en) 2003-05-15

Family

ID=7873708

Family Applications (1)

Application Number Title Priority Date Filing Date
AT99113205T ATE239868T1 (en) 1998-07-10 1999-07-08 FUEL INJECTION PUMP

Country Status (3)

Country Link
EP (1) EP0971123B1 (en)
AT (1) ATE239868T1 (en)
DE (2) DE19831078A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10163693A1 (en) 2001-12-21 2003-07-10 Orange Gmbh Injection injector for internal combustion engines
ATE352713T1 (en) * 2003-08-07 2007-02-15 Delphi Tech Inc PUMP ARRANGEMENT
ITBO20040322A1 (en) 2004-05-20 2004-08-20 Magneti Marelli Powertrain Spa METHOD AND SYSTEM FOR DIRECT FUEL INJECTION INTO AN INTERNAL COMBUSTION ENGINE
KR101400580B1 (en) * 2010-01-15 2014-07-01 현대중공업 주식회사 Injection Device for Fuel Injectiojn Pump

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2067883A5 (en) * 1969-11-20 1971-08-20 Peugeot
US4163634A (en) * 1977-11-25 1979-08-07 Caterpillar Tractor Co. Fuel pump plunger
DE3347430A1 (en) * 1983-12-29 1985-07-11 Robert Bosch Gmbh, 7000 Stuttgart FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
DE3763811D1 (en) * 1986-11-21 1990-08-23 Bosch Robert PUMP ELEMENT OF A FUEL INJECTION PUMP FOR INJECTION COMBUSTION ENGINES.
DE3804843A1 (en) * 1988-02-17 1989-08-31 Bosch Gmbh Robert FUEL INJECTION PUMP FOR INTERNAL COMBUSTION ENGINES
DE4002557C2 (en) * 1990-01-30 1996-02-01 Orange Gmbh High pressure piston pump
DE4006899A1 (en) * 1990-03-06 1991-09-12 Mak Maschinenbau Krupp Piston for fuel injection pump - has increased radial clearance over end region to eliminate cavitation
DE4304084C2 (en) 1993-02-11 1995-03-09 Orange Gmbh Injection pump element with sloping control edges

Also Published As

Publication number Publication date
EP0971123A2 (en) 2000-01-12
DE19831078A1 (en) 2000-01-13
EP0971123B1 (en) 2003-05-07
DE59905415D1 (en) 2003-06-12
EP0971123A3 (en) 2001-04-18

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Legal Events

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