Modulating flow diverter for a fuel injector

Details Modulating flow diverter for a fuel injector Modulating flow diverter for a fuel injector

1995-03-27

1997-07-08

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395338, F02M 4700

Patent

active

056452241

ABSTRACT:
A unit fuel pump injector having a controlled leak path from the high pressure fluid volume surrounding the needle check in order to divert fuel flow away from the injection spray orifices. The fuel flow divertion occuring only during the injector operation when the check is traveling between its seat and its travel stop. This design improves the ability to modulate fuel delivery of unit injectors at low engine speeds and idle conditions and thereby eliminates or significantly reduces hunting or wandering of engine speed at such conditions while not significantly influencing the fuel delivered at large rack positions.

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