Fuel injection nozzle

Details Fuel injection nozzle Fuel injection nozzle

1977-02-07

1979-08-28

Cherry, Johnny D.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

239574, B05B 130

Patent

active

041658388

ABSTRACT:
A fuel injection nozzle proper comprises a spring-loaded valve which is opened by fuel pressure in a fuel supply passageway to inject fuel directly into an engine cylinder when the fuel pressure is above a first predetermined value. A check valve is provided in the fuel supply passageway which is opened when the fuel pressure is above a second predetermined value which is higher than the first predetermined value to allow fuel flow through the check valve. A longitudinal passageway having an orifice formed through the check valve element allows fuel flow therethrough even when the fuel pressure is below the second predetermined value so that fuel flows through the check valve to a lesser extent when the check valve is closed than when the check valve is opened so that the fuel flow is constricted and fuel injection is prolonged at low engine speeds thereby reducing combustion noise.

REFERENCES:
patent: 2172383 (1939-09-01), Honn
patent: 2602703 (1952-07-01), Camner
patent: 3332407 (1967-07-01), Scott
patent: 3627208 (1971-12-01), Scott et al.

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