Fuel injector nozzle assembly

Details Fuel injector nozzle assembly Fuel injector nozzle assembly

2006-06-13

2006-06-13

Nguyen, Dinh Q. (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Rigid fluid confining distributor

Orifice in separable disc or plate

C239S533200, C239S533120, C239S585100, C239S900000

Reexamination Certificate

active

07059549

ABSTRACT:
A fuel injector nozzle assembly includes an injector body including a valve seat with a supply passage through which fuel flows generally along a supply axis. The valve seat presents an upper surface which is adapted to engage a valve to seal the supply passage. A nozzle plate is mounted onto the valve seat and includes a plurality of orifice holes therein through which fuel flows. The valve seat further includes a first edge protrusion protruding into the fuel flow for generating a first separation of the fuel flow, thereby creating a plurality of small eddies which are entrained within the fuel flowing adjacent thereto. A turbulence cavity is defined by the nozzle plate and the valve seat wherein fuel flows into the turbulence cavity through the supply passage and out from the turbulence cavity through the plurality of orifice holes.

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patent: WO 93/20349 (1993-10-01), None
patent: WO 95/04881 (1995-02-01), None

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