JPS6435070A - Accumulator type fuel injector - Google Patents

Accumulator type fuel injector

Info

Publication number
JPS6435070A
JPS6435070A JP32961487A JP32961487A JPS6435070A JP S6435070 A JPS6435070 A JP S6435070A JP 32961487 A JP32961487 A JP 32961487A JP 32961487 A JP32961487 A JP 32961487A JP S6435070 A JPS6435070 A JP S6435070A
Authority
JP
Japan
Prior art keywords
pressure
fuel
accumulation chamber
injection
engine
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
JP32961487A
Other languages
Japanese (ja)
Other versions
JPH0633735B2 (en
Inventor
Hiroshi Matsuoka
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.)
Isuzu Motors Ltd
Original Assignee
Isuzu Motors 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 Isuzu Motors Ltd filed Critical Isuzu Motors Ltd
Priority to JP62329614A priority Critical patent/JPH0633735B2/en
Publication of JPS6435070A publication Critical patent/JPS6435070A/en
Publication of JPH0633735B2 publication Critical patent/JPH0633735B2/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
    • F02M47/00—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure
    • F02M47/02—Fuel-injection apparatus operated cyclically with fuel-injection valves actuated by fluid pressure of accumulator-injector type, i.e. having fuel pressure of accumulator tending to open, and fuel pressure in other chamber tending to close, injection valves and having means for periodically releasing that closing pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fuel-Injection Apparatus (AREA)

Abstract

PURPOSE:To ensure predetermined fuel injection quantity at all times by leaking pressure in an accumulation chamber upon elapse of predetermined interval after start of fuel injection and lowering the pressure in the accumulation chamber below closing pressure of a needle valve. CONSTITUTION:When pressure fuel feed interval for an accumulation chamber 5 through a fuel pump finishes and a predetermined interval elapses after start of injection of fuel through an injection port 11 into a combustion chamber, pressure in the accumulation chamber 5 is leaked to lower the pressure in the accumulation chamber 5 below closing pressure of a needle valve 3. Consequently, initial injection rate can be increased even if the temperature of engine at the end of compression stroke increases and the time interval between fuel injection and firing is shortened considerably, and since function for leaking pressure in the accumulation chamber 5 is provided, predetermined quantity of fuel can be injected into the combustion chamber of engine in short time, resulting in improvement of engine performance.
JP62329614A 1987-12-28 1987-12-28 Accumulation type fuel injection device Expired - Lifetime JPH0633735B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62329614A JPH0633735B2 (en) 1987-12-28 1987-12-28 Accumulation type fuel injection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62329614A JPH0633735B2 (en) 1987-12-28 1987-12-28 Accumulation type fuel injection device

Publications (2)

Publication Number Publication Date
JPS6435070A true JPS6435070A (en) 1989-02-06
JPH0633735B2 JPH0633735B2 (en) 1994-05-02

Family

ID=18223321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62329614A Expired - Lifetime JPH0633735B2 (en) 1987-12-28 1987-12-28 Accumulation type fuel injection device

Country Status (1)

Country Link
JP (1) JPH0633735B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728939A1 (en) * 1995-02-23 1996-08-28 Perkins Limited An accumulator type fuel injector system for an internal combustion engine and a method of operating said system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0303201D0 (en) 2003-09-09 2003-11-25 Volvo Lastvagnar Ab Piston-type internal combustion engine and method of controlling the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203864A (en) * 1983-05-04 1984-11-19 Nissan Motor Co Ltd Fuel injection device for internal-combustion engine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203864A (en) * 1983-05-04 1984-11-19 Nissan Motor Co Ltd Fuel injection device for internal-combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0728939A1 (en) * 1995-02-23 1996-08-28 Perkins Limited An accumulator type fuel injector system for an internal combustion engine and a method of operating said system

Also Published As

Publication number Publication date
JPH0633735B2 (en) 1994-05-02

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