Fuel injection nozzle for internal combustion engines

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

1981-11-30

1983-10-04

Love, John J.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

F02M 6100

Patent

active

044074573

ABSTRACT:
A fuel injection nozzle for internal combustion engines is proposed in which a valve needle receives an auxiliary needle in a blind bore opening toward the side on which injection occurs, and in which two injection locations each having at least one injection opening are controllable in accordance with the stroke, and in which the valve needle controls the passage of fuel from a pressure chamber of the injection nozzle selectively to the injection areas. The auxiliary needle is urged in the opening direction of the valve needle by a spring and is displaced in the flow direction at a first, lower fuel pressure, whereby it hydraulically separates the two injection areas. At a second, higher pressure the auxiliary needle is carried along as a drag member by the valve needle so as to reestablish communication between the two injection areas.

REFERENCES:
patent: 2410946 (1946-11-01), Johnson
patent: 3446440 (1969-05-01), Pele et al.

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