Fuel injector nozzle with guide to check clearance passage provi

Details Fuel injector nozzle with guide to check clearance passage provi Fuel injector nozzle with guide to check clearance passage provi

1994-05-31

2000-12-19

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

2395334, F02M 4702

Patent

active

061617733

ABSTRACT:
A fuel injector nozzle has a housing defining a blind bore with at least one fuel injection spray orifice defined at a bottom portion of a spray tip and a guide passage defined at a top portion of the bore. An injection chamber of the bore is disposed between the orifice and the guide passage. A fuel injection passage intersects the guide passage. A needle check is slidably disposed in the blind bore for movement between a first position and a second position. In the first position, a seat portion of the check is disposed in the bore against the bottom portion of the tip while a guide portion of the check together with the guide passage define a first flow area restricting fluid flow therethrough. In the second position, the seat portion of the check is spaced from the bottom portion of the tip, and the guide portion and guide passage define a second flow area larger than the first flow area and less restrictive of flow therepast.

REFERENCES:
patent: 2793077 (1957-05-01), Bovard
patent: 3006556 (1961-10-01), Shade et al.
patent: 3368761 (1968-02-01), Pelizzoni
patent: 4219154 (1980-08-01), Luscomb
patent: 5020500 (1991-06-01), Kelly
patent: 5191867 (1993-03-01), Glassey
patent: 5287838 (1994-02-01), Wells

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