Fluid sprinkling – spraying – and diffusing – Unitary injection nozzle and pump or accumulator plunger
Patent
1981-02-23
1983-07-26
Love, John J.
Fluid sprinkling, spraying, and diffusing
Unitary injection nozzle and pump or accumulator plunger
239585, F02M 4702
Patent
active
043949622
ABSTRACT:
A fuel injector and valve assembly (2) including a unit injector (4) having a main pumping plunger (10) and a shuttle piston (14) selectively connected to the pumping plunger by means of a hydraulic link controlled by a ball-type solenoid operated valve (28). The valve includes a housing (58) containing a valve cavity (76) in which a ball (78) is positioned for movement between a closed position and open position in less than one millisecond to control the timing and metering function of the fuel injector (4). The ball (78) is biased to the closed position by a spring (88) and is moved to an open position by an operator stem (98) biased by a stronger opposing spring (116) surrounding the operator stem (98). The operator stem (98) is withdrawn by energization of solenoid (118) to allow the ball (78) to be moved to the closed position by the ball spring (88). An extremely simple structural configuration is employed including inner and outer valve housing members (62,72) arranged to form valve cavity (76) when assembled and including an operator housing (90) connected in a manner to allow the retracted position of the operator stem (98) to be adjusted by simple relative rotational movement of the operator and valve housings (58,90).
REFERENCES:
patent: 2229499 (1941-01-01), Fisette
patent: 2792195 (1957-05-01), Mosbacher
patent: 3368791 (1968-02-01), Wells
patent: 3464668 (1969-09-01), Jacob
patent: 4018419 (1977-04-01), Monpetit
patent: 4129253 (1978-12-01), Bader et al.
patent: 4129254 (1978-12-01), Bader, Jr. et al.
patent: 4235374 (1980-11-01), Walter et al.
Church Gene A.
Cummins Engine Company, Inc.
Love John J.
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