Patent ID: 7059549

Claim:
A fuel injector nozzle assembly comprising: an injector body including a valve seat with a supply passage through which fuel flows generally along a supply axis, said valve seat presenting an upper surface adapted to engage a valve to seal said supply passage; and a nozzle plate mounted onto said valve seat including a plurality of conical orifice holes therein through which fuel flows, said nozzle plate including a circular shaped first recess formed within a top surface of said nozzle plate; said valve seat further including 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, and a second recess, wherein said nozzle plate is shaped such that said nozzle plate is received within said second recess; a turbulence cavity defined by said first recess and said valve seat wherein fuel flows into said turbulence cavity through said supply passage and out from said turbulence cavity through said plurality of orifice holes; said plurality of orifice holes evenly distributed along a circular pattern, said circular pattern having a diameter smaller than said first recess, such that said orifice holes are in fluid communication with said turbulence cavity.