JPS57148054A - Fuel injection pump - Google Patents

Fuel injection pump

Info

Publication number
JPS57148054A
JPS57148054A JP56032904A JP3290481A JPS57148054A JP S57148054 A JPS57148054 A JP S57148054A JP 56032904 A JP56032904 A JP 56032904A JP 3290481 A JP3290481 A JP 3290481A JP S57148054 A JPS57148054 A JP S57148054A
Authority
JP
Japan
Prior art keywords
plunger
diagonal groove
distance
holes
cylinder
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
JP56032904A
Other languages
Japanese (ja)
Other versions
JPS6110666B2 (en
Inventor
Kenichi Sonoda
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.)
Kawasaki Heavy Industries Ltd
Kawasaki Motors Ltd
Original Assignee
Kawasaki Heavy Industries Ltd
Kawasaki Jukogyo KK
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 Kawasaki Heavy Industries Ltd, Kawasaki Jukogyo KK filed Critical Kawasaki Heavy Industries Ltd
Priority to JP56032904A priority Critical patent/JPS57148054A/en
Publication of JPS57148054A publication Critical patent/JPS57148054A/en
Publication of JPS6110666B2 publication Critical patent/JPS6110666B2/ja
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
    • F02M59/20—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

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

PURPOSE:To improve durability, by both communicating a plunger upper chamber to a diagonal groove through a communication hole provided in a plunger and vertically fuel suction control holes opened to the side of a cylinder. CONSTITUTION:In the above described pump in which a fuel feed amount is controlled by the rotary position of a diagonal groove 9 provided in the outside of a plunger 4, a plunger upper chamber 6 is communicated to the diagonal groove 9 by a communication hole 14. Further fuel suction control holes 5, 5' are vertically opened to the side of a cylinder 3, and a distance between centers of the holes 5, 5' are formed smaller than a distance between upper and lower edges of the diagonal groove 9 in its no-control position and larger than width of the maximum upper and lower edges in an injection control range by at least the hole diameter. Then a minimum distance between the lower edge of the diagonal groove 9 and the upper edge of the plunger 4 is arranged larger than the distance between the control holes 5, 5' by not less than the hole diameter. In this way, vertical motion of the plunger 4 can be smoothly performed.
JP56032904A 1981-03-06 1981-03-06 Fuel injection pump Granted JPS57148054A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56032904A JPS57148054A (en) 1981-03-06 1981-03-06 Fuel injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56032904A JPS57148054A (en) 1981-03-06 1981-03-06 Fuel injection pump

Publications (2)

Publication Number Publication Date
JPS57148054A true JPS57148054A (en) 1982-09-13
JPS6110666B2 JPS6110666B2 (en) 1986-03-31

Family

ID=12371877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56032904A Granted JPS57148054A (en) 1981-03-06 1981-03-06 Fuel injection pump

Country Status (1)

Country Link
JP (1) JPS57148054A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144925A (en) * 1990-02-21 1992-09-08 Automotive Diesel Gesellschaft M.B.H. Fuel injection device for fuel-injected internal combustion engines
JP2003097289A (en) * 2001-09-19 2003-04-03 Honda Motor Co Ltd Inclined cylinder type multipurpose four-cycle engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01167872U (en) * 1988-05-09 1989-11-27

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5144925A (en) * 1990-02-21 1992-09-08 Automotive Diesel Gesellschaft M.B.H. Fuel injection device for fuel-injected internal combustion engines
JP2003097289A (en) * 2001-09-19 2003-04-03 Honda Motor Co Ltd Inclined cylinder type multipurpose four-cycle engine

Also Published As

Publication number Publication date
JPS6110666B2 (en) 1986-03-31

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