Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1993-11-01
1995-02-28
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
239101, F02M 5502
Patent
active
053929942
ABSTRACT:
A fuel system is disclosed having a fuel nozzle which receives pulsed, pressurized fuel for injection into the intake of an engine. The nozzle has a valve seat assembly with an upstream and a downstream seat interconnected by a longitudinal passage and by a bypass extending from upstream of the first seat to a location intermediate of the two seats. A poppet valve assembly has interconnected upstream and a downstream valve members operable relative to respective valve seats to regulate flow through the nozzle. A biasing member urges the valve member into a closed position in which the upstream valve member is unseated and the downstream valve member is seated to interrupt flow therethrough and out of the nozzle. Introduction of a fuel pulse into the nozzle moves the upstream valve member into engagement with its valve seat to thereby unseat the downstream valve member to allow fuel flow through the bypass around the upstream valve/seat and out of the nozzle through the open, downstream valve/seat. The bypass defines a fixed orifice for fuel flow through the nozzle and can produce a majority of the pressure drop and fuel metering functioning the fuel system.
REFERENCES:
patent: 2756106 (1956-07-01), Schenk
patent: 2812979 (1957-11-01), Ziesche et al.
patent: 3237568 (1966-03-01), Morgan et al.
patent: 4641784 (1987-02-01), Howes
patent: 5070845 (1991-12-01), Avdenko et al.
patent: 5188142 (1993-02-01), Lind et al.
Rock Jeffrey A.
Taylor Roland S.
Volo Corrine A.
Zizelman James
Barr Jr. Karl F.
General Motors Corporation
Kashnikow Andres
Weldon Kevin P.
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