Fuel injector for internal combustion engines

Details Fuel injector for internal combustion engines Fuel injector for internal combustion engines

1978-11-15

1981-03-10

Cherry, Johnny D.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

B05B 130, F02M 6100

Patent

active

042549159

ABSTRACT:
A fuel injector for internal combustion engines. The fuel injector comprises a nozzle needle which is axially displaceably arranged in a nozzle body and is adapted to be lifted off its conical valve seat in response to fuel pressure. A pin of the nozzle needle extends below the valve seat into a cavity provided in the nozzle body. In the nozzle body, below the cavity, there is provided a blind hole having a diameter smaller than that of the cavity. The pin extends into this blind hole when the fuel injector is closed or slightly opened, providing substantial sealing in a radial direction. At least one spray hole enters the blind hole eccentrically in such a way that a clearance is formed which communicates with the cavity.

REFERENCES:
patent: 2017028 (1935-10-01), Heinrich et al.
patent: 3559892 (1971-02-01), Luca

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