Fuel injection nozzle for internal combustion engines

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

1984-04-13

1986-01-28

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395333, 2395339, 137506, 137869, F02M 4702

Patent

active

045666350

ABSTRACT:
A fuel injection nozzle for internal combustion engines, having a valve needle, which at the end of a pre-stroke directly or indirectly opens an auxiliary conduit, by way of which the fuel pressure acts upon a reservoir piston and a pressure shoulder which acts in the closing direction of the valve needle. As a result, the valve needle is temporarily returned to the valve seat and the closing pressure is notably increased. The subsequent primary injection phase is initiated at a correspondingly higher pressure, and the higher closing pressure continues effective until the end of the injection event, thereby bringing about an exact closure of the valve.

REFERENCES:
patent: 2558148 (1951-06-01), Nicolls
patent: 3817456 (1974-06-01), Schlappkohl
patent: 3997117 (1976-12-01), Kohler et al.
patent: 4186884 (1980-02-01), Mowbray
patent: 4258883 (1981-03-01), Hofmann et al.
patent: 4402456 (1983-09-01), Schneider
patent: 4448356 (1984-05-01), Nakajima et al.

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