JPS57191451A - Mechanism for supplying compressed air to fuel injection valve - Google Patents
Mechanism for supplying compressed air to fuel injection valveInfo
- Publication number
- JPS57191451A JPS57191451A JP7524881A JP7524881A JPS57191451A JP S57191451 A JPS57191451 A JP S57191451A JP 7524881 A JP7524881 A JP 7524881A JP 7524881 A JP7524881 A JP 7524881A JP S57191451 A JPS57191451 A JP S57191451A
- Authority
- JP
- Japan
- Prior art keywords
- tip
- needle valve
- fuel
- tip side
- 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
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/10—Injectors peculiar thereto, e.g. valve less type
- F02M67/12—Injectors peculiar thereto, e.g. valve less type having valves
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 remove carbon from the external periphery side of a projected part on the tip side of a needle valve and enable to inject sufficient fuel in a beginning period of injection, by a method wherein air compressed by moving a piston in a cylinder is jetted from the side of the tip, or a part in proximity to the tip, of a needle valve for a fuel injection valve. CONSTITUTION:A nozzle body 40 is connected to the tip side of a holder body 11 through a distance piece 12. The bodies 40, 11 are provided with holes 17, 18 for containing the needle valve 14 and a spring 16, respectively, and the needle valve 14 and a spring seat 15 are connected to each other through a projecting pin 19. Oil passages 22, 24 are connected to a fuel reservoir 20 in the nozzle body 40 and they are supplied with a fuel from the side of a connecting member 25. On the other hand, on the tip side of a pressure-receiving surface 21 provided at a part faced to the fuel reservoir 20, the tip side of the hole 29 formed in the nozzle body 40 is mated to the lower side of a seat part where a tapered surface 6 on the tip side of a small-dimaeter part 5 and a tapered surface 10 on the upper side of the hole 9 make contact with each other. The compressed air supplied through a sealing member 32 is jetted to the side of a precombustion chamber 27 through holes 31-29.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7524881A JPS57191451A (en) | 1981-05-19 | 1981-05-19 | Mechanism for supplying compressed air to fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7524881A JPS57191451A (en) | 1981-05-19 | 1981-05-19 | Mechanism for supplying compressed air to fuel injection valve |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57191451A true JPS57191451A (en) | 1982-11-25 |
Family
ID=13570727
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7524881A Pending JPS57191451A (en) | 1981-05-19 | 1981-05-19 | Mechanism for supplying compressed air to fuel injection valve |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57191451A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01159462A (en) * | 1987-09-02 | 1989-06-22 | Toyota Motor Corp | Fuel injection system for internal combustion engine |
JPH01244159A (en) * | 1988-02-12 | 1989-09-28 | Outboard Marine Corp | Internal combustion engine |
JPH02223669A (en) * | 1987-12-30 | 1990-09-06 | Inst Fr Petrole | Method for pneumatically injecting fuel into cylinder of alternative internal combustion engine and pneumatic injection device thereof |
-
1981
- 1981-05-19 JP JP7524881A patent/JPS57191451A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01159462A (en) * | 1987-09-02 | 1989-06-22 | Toyota Motor Corp | Fuel injection system for internal combustion engine |
JPH02223669A (en) * | 1987-12-30 | 1990-09-06 | Inst Fr Petrole | Method for pneumatically injecting fuel into cylinder of alternative internal combustion engine and pneumatic injection device thereof |
JPH01244159A (en) * | 1988-02-12 | 1989-09-28 | Outboard Marine Corp | Internal combustion engine |
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