Methanol fueled diesel internal combustion engine fuel injector

Details Methanol fueled diesel internal combustion engine fuel injector Methanol fueled diesel internal combustion engine fuel injector

1991-09-10

1993-06-22

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

2395339, 2395851, F02M 4700

Patent

active

052210464

ABSTRACT:
A spray injector nozzle for a diesel engine fuel injector particularly suited for methanol and other low cetane liquid fuels constructed in a manner to effectively disburse fuel to the combustion chamber and maintain to a minimum hydrocarbon emissions, and substantially control or eliminate the build up of harmful deposits at the injector orifice. The spray injector nozzle is provided with an inner main cavity and an inner second cavity portion capable of flow communication with a pressurized fuel supply and a plurality of spray outlets to communicate the fuel to the combustion chamber. A retractable needle is utilized to engage an inner valve seat and completely block the flow of fuel communication to the spray outlets with the spray outlets located high in the valve seat of the spray nozzle. In one form, the nozzle includes a ball or other insert member completely filling the sac portion of a valve covered orifice type injection tip.

REFERENCES:
patent: 4129253 (1978-12-01), Hader, Jr. et al.
patent: 4392612 (1983-07-01), Deckard et al.
patent: 4470548 (1984-09-01), Ushimura
patent: 4505243 (1985-03-01), Miwa
patent: 4570853 (1986-02-01), Schmied
patent: 4897907 (1990-02-01), Kopiec et al.
SAE Technical Paper Series 831744: Development of Detroit Diesel Allison 6V-92TA Methanol Fueled Coach Engine; R. R. Toepel, J. E. Bennethum, and R. E. Heruth, published Oct. 31, 1983.
SAE Technical Paper Series 901564; Development Status of the Detroit Diesel Corporation Methanol Engine; S. P. Miler and C. L. Savonen, published Sep. 10, 1990.
Diagram of Needle Valve Tip Design-Reduced SAC VCO (Feb. 28, 1981).

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