Fuel injection nozzle for internal combustion engines

Details Fuel injection nozzle for internal combustion engines Fuel injection nozzle for internal combustion engines

1994-01-03

1995-11-14

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395333, F02M 6120

Patent

active

054659078

ABSTRACT:
A fuel injection nozzle for internal combustion engines having a nozzle body with a conical valve seat face and with a valve needle displaceable in the nozzle body, the valve needle having a closing cone cooperating with the seat face in valvelike fashion. To prevent the sealing cone from repeatedly covering the injection ports that begin at the seat face, which can be caused by the natural oscillation of the valve needle during the opening stroke, the valve needle is embodied to have a high natural frequency. To that end, the following segment that adjoins the guide segment guided in the nozzle body and that protrudes freely toward the seat face is embodied as conically tapered toward this seat face. The end segment of the valve needle that carries the closing cone may also be embodied as a thickened head.

REFERENCES:
patent: 1589245 (1926-06-01), Scott
patent: 1879985 (1932-09-01), Lummen
patent: 3406912 (1968-10-01), Claffey
patent: 3511442 (1970-05-01), De Luca et al.
patent: 4382554 (1983-05-01), Hofmann
patent: 4801095 (1989-01-01), Banzhaf et al.
patent: 4934599 (1990-06-01), Hasagawa
patent: 5199647 (1993-04-01), Yoshizu

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