Fuel injector for an internal combustion engine

Details Fuel injector for an internal combustion engine Fuel injector for an internal combustion engine

1999-04-19

2000-11-07

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395332, 2395333, 23953314, F02M 6100

Patent

active

061423920

ABSTRACT:
In a fuel injector for an internal combustion engine having an injection hole, a valve body, and a fuel reservoir on the downstream side of a seat portion of the valve body, the width of the injection hole is gradually narrowed inward at a predetermined included angle, an opening on the outer side of the injection hole has a width sufficiently larger than the height thereof. The tip of the fuel reservoir is communicated with the injection hole via a passage portion which has a uniform cross section. On each transverse plane within the height of the injection hole, the tip of the fuel reservoir has an arc shape, on the transverse plane passing through the center of the height of the injection hole, the tip of the fuel reservoir has a hemicircle shape and the vertex of the predetermined included angle is located on the upstream side of the center of the hemicircle shape.

REFERENCES:
patent: 4721253 (1988-01-01), Noguchi et al.
patent: 5346137 (1994-09-01), Okamoto et al.
patent: 5353992 (1994-10-01), Regueiro
patent: 6019296 (2000-02-01), Yamamoto et al.
patent: 6045063 (2000-04-01), Koike et al.

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