JPS57135262A - Injection nozzle for diesel engine - Google Patents
Injection nozzle for diesel engineInfo
- 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
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 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.
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)
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)
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 |
-
1981
- 1981-02-14 JP JP1959481A patent/JPS57135262A/en active Pending
Patent Citations (2)
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)
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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