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JPS57135262A - Injection nozzle for diesel engine - Google Patents

Injection nozzle for diesel engine

Info

Publication number
JPS57135262A
JPS57135262A JP1959481A JP1959481A JPS57135262A JP S57135262 A JPS57135262 A JP S57135262A JP 1959481 A JP1959481 A JP 1959481A JP 1959481 A JP1959481 A JP 1959481A JP S57135262 A JPS57135262 A JP S57135262A
Authority
JP
Japan
Prior art keywords
fuel
oil sump
large diameter
stepped bore
nozzle body
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
JP1959481A
Other languages
Japanese (ja)
Inventor
Katsunobu Kano
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP1959481A priority Critical patent/JPS57135262A/en
Publication of JPS57135262A publication Critical patent/JPS57135262A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02MSUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M61/00Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
    • F02M61/04Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
    • F02M61/10Other 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 prevent a fuel from leaking from abutted surfaces between a nozzle holder and a nozzle body in a fuel injection valve. CONSTITUTION:The diameter of the forward end of a needle valve 4, that is, the diameter of an end 4c remote from a needle rod 4a and a cone 4b is enlarged more than that of a remaining part 4d, and these large diameter end 4c and the small diameter remaining part 4d are respectively inserted slidably in a stepped bore large diameter part 3e opened in an end surface 3a of the nozzle body 3 and a stepped bore small diameter part 3f. Thus, an oil sump 15 in addition to an existing oil sump 8 is provided between the bottom of the stepped bore large diameter part 3e and the needle valve large diameter end 4c. Accordingly, a fuel is supplied to the oil sump 15 through a connector 12 and a path 18, and to the oil sump 8 through a path 17 thereafter, and the fuel pressure acts on the needle valve 4 in the oil sumps 18, 15. In this case, since the fuel would not pass through the abutted surfaces 1a, 3b of the nozzle holder 1 and the nozzle body 3, the leakage of the fuel that has been occurred in the prior arrangement causing a trouble can be obviated.
JP1959481A 1981-02-14 1981-02-14 Injection nozzle for diesel engine Pending JPS57135262A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1959481A JPS57135262A (en) 1981-02-14 1981-02-14 Injection nozzle for diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1959481A JPS57135262A (en) 1981-02-14 1981-02-14 Injection nozzle for diesel engine

Publications (1)

Publication Number Publication Date
JPS57135262A true JPS57135262A (en) 1982-08-20

Family

ID=12003563

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1959481A Pending JPS57135262A (en) 1981-02-14 1981-02-14 Injection nozzle for diesel engine

Country Status (1)

Country Link
JP (1) JPS57135262A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000874A1 (en) * 1986-08-04 1988-02-11 Caterpillar Inc. Interference connection between a fluid line and a fluid injector and method of making same
EP2534365A1 (en) * 2010-02-08 2012-12-19 International Engine Intellectual Property Company, LLC Fuel injector nozzle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021605A (en) * 1973-05-23 1975-03-07
JPS56550A (en) * 1979-06-15 1981-01-07 Katsunobu Kano Injection nozzle for diesel engine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5021605A (en) * 1973-05-23 1975-03-07
JPS56550A (en) * 1979-06-15 1981-01-07 Katsunobu Kano Injection nozzle for diesel engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988000874A1 (en) * 1986-08-04 1988-02-11 Caterpillar Inc. Interference connection between a fluid line and a fluid injector and method of making same
US4765543A (en) * 1986-08-04 1988-08-23 Caterpillar Inc. Interference connection between a fluid line and a fluid injector
GB2206927A (en) * 1986-08-04 1989-01-18 Caterpillar Inc Interference connection between a fluid line and a fluid injector and method of making same
GB2206927B (en) * 1986-08-04 1990-05-02 Caterpillar Inc Interference connection between a fluid line and a fluid injector and method of making same
EP2534365A1 (en) * 2010-02-08 2012-12-19 International Engine Intellectual Property Company, LLC Fuel injector nozzle
EP2534365A4 (en) * 2010-02-08 2014-04-16 Int Engine Intellectual Prop Fuel injector nozzle

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