Patent ID: RE44082

Claim:
A nozzle assembly comprising: a plurality of assembled components having a centerline and defining a plurality of nozzle outlets; a homogenous charge compression ignition portion of said plurality of nozzle outlets including at least one nozzle outlet oriented at a first angle with respect to said centerline; a conventional portion of said plurality of nozzle outlets including at least one nozzle outlet oriented at a second angle with respect to said centerline; said assembled components including a needle valve being positioned to move between positions that open and close said plurality of nuzzle outlets, and being moveable between a first position in which said first portion are open but said second portion are closed, and a second position in which said second portion are open but said first portion are closed; and at least one electrical actuator operably coupled to said needle valve said needle valve including a first needle valve member with a first closing hydraulic surface and a second needle valve member with a second closing hydraulic surface; and said first closing hydraulic surface is exposed to fluid pressure in a first needle control chamber and said second closing hydraulic surface is exposed to fluid pressure in a second needle control chamber said first needle control chamber contains a first fluid and said second needle control chamber contains a second fluid that is different from said first fluid.