Fuel injection nozzle for an internal combustion engine

Details Fuel injection nozzle for an internal combustion engine Fuel injection nozzle for an internal combustion engine

1982-09-29

1985-03-26

Nase, Jeffrey V.

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

F02M 4508

Patent

active

045068330

ABSTRACT:
A fuel injection nozzle for an internal combustion engine includes a hollow nozzle body and a valve member liftably disposed therein. The nozzle body and the valve member define a space therebetween through which fuel is supplied to an orifice in the nozzle body. The valve member contacts the nozzle body at a position to block communication between the space and the orifice when the valve member is in the unlifted position. Fuel enters the orifice from the space as the valve member lifts. The valve member and nozzle body have opposing surfaces establishing a gap between the space and orifice. The gap has a cross-sectional area smaller than that of the orifice that remains constant as the valve member lifts through a predetermined range so that the rate of fuel injection increases through a plateau as the valve member lifts to a position above the predetermined range.

REFERENCES:
patent: 3469793 (1969-09-01), Guertler
patent: 4162043 (1979-07-01), Eblen et al.
Motortechnische Zeitschrift 41, (1980), 7/8.

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