Fuel injector with hoop nozzle spray tip

Details Fuel injector with hoop nozzle spray tip Fuel injector with hoop nozzle spray tip

1984-08-29

1986-03-18

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Terminal outlet formed between parts mounted for relative...

Spray fluid pressure responsive discharge modifier

2395333, 2395336, 23953312, 23953313, 239574, 239576, 137853, B05B 132, F02M 4700

Patent

active

045763380

ABSTRACT:
The spray tip of a diesel fuel injector, downstream of a conventional pressure actuated injector needle valve, includes a plug holder used to support and retain a hollow inner plug valve element, containing a number of radial through orifices communicating with an annular groove in the outer peripheral surface of the plug valve element and an outer hoop valve element with a hoop-skirt valve encircling the inner plug valve element. A shrink-fit exists between the hoop-skirt valve and the inner plug valve element to provide for a zero sac volume spray tip. The hoop-skirt valve operates as an integral hoop valve which is expanded relative to the inner plug valve element when supplied with high pressure fuel to form therewith a fuel discharge annulus.

REFERENCES:
patent: 2244394 (1941-06-01), Hautzenroeder
patent: 2630326 (1953-03-01), Bryant
patent: 2831730 (1958-04-01), Pflaum
patent: 3282513 (1966-11-01), Savage
patent: 3528613 (1970-09-01), Berlyn
patent: 4099494 (1978-07-01), Goloff et al.

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