JPS57212364A - Fuel injection pump - Google Patents

Fuel injection pump

Info

Publication number
JPS57212364A
JPS57212364A JP56095383A JP9538381A JPS57212364A JP S57212364 A JPS57212364 A JP S57212364A JP 56095383 A JP56095383 A JP 56095383A JP 9538381 A JP9538381 A JP 9538381A JP S57212364 A JPS57212364 A JP S57212364A
Authority
JP
Japan
Prior art keywords
plunger
port
spill port
beginning
lead
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
JP56095383A
Other languages
Japanese (ja)
Other versions
JPS6238551B2 (en
Inventor
Takeo Takaishi
Koji Imoto
Tatsuo Takaishi
Wakihiko Kikuchi
Akira Nishina
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.)
Mitsubishi Motors Corp
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Motors Corp
Mitsubishi Heavy 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 Mitsubishi Motors Corp, Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Motors Corp
Priority to JP56095383A priority Critical patent/JPS57212364A/en
Publication of JPS57212364A publication Critical patent/JPS57212364A/en
Publication of JPS6238551B2 publication Critical patent/JPS6238551B2/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 the starting property and the stability of speed governing by a method wherein the positional relation between the upper rims of an oil supplying port and a spill port is determined so that both of them are coincided with the inclination of a plunger or the spill port is closed slightly earlier. CONSTITUTION:In an injection pump having the plunger 7 being formed the lead thereof for beginning of discharging with an inclination so as to hasten the timing of the beginning of discharging at a discharging amount increasing side, the development diagram of the plunger lead is determined as described hereunder. The spill port 30 and the oil supplying port 15 are arranged in such a relative position wherein the upper rims of respective ports are coincided on the line of the fore lead 7a of the plunger 7 or the spill port 30 is closed slightly earlier than the oil supplying port 15. Upon starting an engine, the pressure in a cylinder chamber is increased from a crank angle theta2 wherein the spill port 30 is closed perfectly by the upper rim of the plunger 7 and the beginning of the fuel injection is delayed geometrically by theta1-theta2. According to this method, the starting property of the engine may be improved.
JP56095383A 1981-06-22 1981-06-22 Fuel injection pump Granted JPS57212364A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56095383A JPS57212364A (en) 1981-06-22 1981-06-22 Fuel injection pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56095383A JPS57212364A (en) 1981-06-22 1981-06-22 Fuel injection pump

Publications (2)

Publication Number Publication Date
JPS57212364A true JPS57212364A (en) 1982-12-27
JPS6238551B2 JPS6238551B2 (en) 1987-08-18

Family

ID=14136116

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56095383A Granted JPS57212364A (en) 1981-06-22 1981-06-22 Fuel injection pump

Country Status (1)

Country Link
JP (1) JPS57212364A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009016774A1 (en) * 2007-07-27 2009-02-05 Bosch Corporation Fuel injection pump

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH086197Y2 (en) * 1989-10-05 1996-02-21 株式会社日立ホームテック Electric warm air blower

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5359022U (en) * 1976-10-21 1978-05-19
JPS5597167U (en) * 1978-12-27 1980-07-05

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5359022U (en) * 1976-10-21 1978-05-19
JPS5597167U (en) * 1978-12-27 1980-07-05

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009016774A1 (en) * 2007-07-27 2009-02-05 Bosch Corporation Fuel injection pump

Also Published As

Publication number Publication date
JPS6238551B2 (en) 1987-08-18

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