Patent ID: 6983733
Filing Date: 2006-01-10
Classification: F02B,F02M,Y02T

Abstract:
1. A direct-injection spark-ignition engine comprising: a spark plug provided approximately at the center of the ceiling of a combustion chamber; and an injector having at its downstream end a nozzle which is located in an upper peripheral area of the combustion chamber; wherein fuel is injected from the nozzle of said injector directly toward the proximity of an electrode of said spark plug, said injector having multiple openings formed in the nozzle, and the directions of axis lines of the individual openings are set such that central points of fuel jets spewed out of the individual openings avert from said spark plug and are distributed around the electrode, slightly separated therefrom; wherein at least part of said central points of the fuel jets are arranged at least in one generally vertical line drawn on one side of the electrode.