Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1993-11-01
1995-01-03
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
F02M 6120
Patent
active
053779150
ABSTRACT:
A fuel injection nozzle has a valve seat assembly with an upstream and a downstream seat interconnected by a longitudinally extending passage and by a bypass extending from a location upstream of the first seat to a chamber located intermediate of the two seats. A popper valve assembly has upstream and downstream valve members interconnected by a spacer member disposed within the chamber and operable relative to respective valve seats to regulate flow through the nozzle. A biasing member urges the valve member into a normally closed position in which the upstream valve member is unseated and the downstream 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 from its valve seat to allow fuel flow through the bypass around the upstream valve/seat wherein the fuel is discharged into the chamber intermediate of the two valve members. The fuel undergoes a pressure drop upon its exit from the bypass and is subject to movement about the chamber and the spacer member to optimize the atomization of the fuel as it exits the nozzle through the open, downstream valve/seat.
REFERENCES:
patent: 2756106 (1956-07-01), Schenk
patent: 2812979 (1952-11-01), 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.
Volo Corrine A.
Barr Karl F.
General Motors Corporation
Kashnikow Andres
Weldon Kevin P.
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