JPS57165661A - Fuel injection nozzle - Google Patents

Fuel injection nozzle

Info

Publication number
JPS57165661A
JPS57165661A JP5006381A JP5006381A JPS57165661A JP S57165661 A JPS57165661 A JP S57165661A JP 5006381 A JP5006381 A JP 5006381A JP 5006381 A JP5006381 A JP 5006381A JP S57165661 A JPS57165661 A JP S57165661A
Authority
JP
Japan
Prior art keywords
oil accumulating
nozzle
accumulating chamber
nozzle needle
needle guide
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.)
Pending
Application number
JP5006381A
Other languages
Japanese (ja)
Inventor
Hidetoshi Saito
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.)
Bosch Corp
Original Assignee
Diesel Kiki Co 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 Diesel Kiki Co Ltd filed Critical Diesel Kiki Co Ltd
Priority to JP5006381A priority Critical patent/JPS57165661A/en
Publication of JPS57165661A publication Critical patent/JPS57165661A/en
Pending 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
    • F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type

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 a combustion condition through prevention of diesel knocking, reduction of a noise level, etc., by arranging valve opening pressure of a fuel injection nozzle to a changeable state and changing the opening pressure of the nozzle in accordance with conditions of speed, load, etc. of an engine. CONSTITUTION:A nozzle main unit 3 comprises the first oil accumulating chamber 8, for a tapered part between a nozzle needle seat part 7 and the first nozzle needle guide 5, the second oil accumulating chamber 9, corresponding to a tapered part between the first nozzle needle guide 5 and the second nozzle needle guide 6, feed passages 10 and 11, feeding fuel to the first oil accumulating chamber 8 and the second oil accumulating chamber 9, and a selector valve 13, opening and closing the feed passage 11 and communicating an injection pump to the second oil accumulating chamber 9 while the passage 11 is opened. In accordance with the condition of an engine, the selector valve 13 is opened. Here high pressure fuel from the injection pump is guided to the first and second oil accumulating chambers 8, 9 to increase pressure receiving area of the needle guides and change valve opening pressure.
JP5006381A 1981-04-04 1981-04-04 Fuel injection nozzle Pending JPS57165661A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5006381A JPS57165661A (en) 1981-04-04 1981-04-04 Fuel injection nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5006381A JPS57165661A (en) 1981-04-04 1981-04-04 Fuel injection nozzle

Publications (1)

Publication Number Publication Date
JPS57165661A true JPS57165661A (en) 1982-10-12

Family

ID=12848532

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5006381A Pending JPS57165661A (en) 1981-04-04 1981-04-04 Fuel injection nozzle

Country Status (1)

Country Link
JP (1) JPS57165661A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0320104A (en) * 1989-05-24 1991-01-29 Avl Ges Verbrennungskraftmas & Messtech Mbh Method and device for stroke control of fluid pressure control valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0320104A (en) * 1989-05-24 1991-01-29 Avl Ges Verbrennungskraftmas & Messtech Mbh Method and device for stroke control of fluid pressure control valve

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