Patent ID: 7520269

Claim:
A fuel injector nozzle assembly for producing a conical fuel plume into a combustion chamber comprising: a nozzle body defining a valve outlet including a valve seat and a longitudinal axis; a needle valve having a first and second end, the needle valve slidably affixed and housed within the nozzle body about the longitudinal axis and the second end extending though the valve outlet and past the valve seat; and a flanged portion formed at the second end of the needle valve and in communication with the valve seat; and the flanged portion having a curved surface facing the valve seat, wherein the curved surface has an angular shape such that the curved surface directs the conical fuel plume into the combustion chamber at an angle between a distal plane and the fuel plume between 30 degrees and 75 degrees from the distal plane, furthermore the flanged portion of the needle value extending beyond the distal plane when in a closed postion.