Patent ID: 7740002
Filing Date: 2010-06-22
Classification: F02M

Abstract:
1. A fuel injector configured to inject fuel directly into a combustion chamber of an internal combustion engine, comprising: a spray nozzle mountable to direct a fuel spray into the combustion chamber, the spray nozzle including a plurality of spray discharge orifices; each spray discharge orifice comprising an opening through a tip of the spray nozzle, the opening comprising an elliptical cross-section having a major axis oriented relative to a line defined by the tip of the spray nozzle and a center electrode of a spark plug in the combustion chamber; and the fuel injector configured to generate planar spray plumes through the spray discharge orifices; wherein the major axes of the elliptical cross-sections of the spray discharge orifices are oriented such that a portion of the planar spray plumes extend proximal to the center electrode of the spark plug.