Patent ID: 6668793
Filing Date: 2003-12-30
Classification: F02B,F02F,F02M,Y02T

Abstract:
In an internal combustion engine comprising a cylinder, a piston which reciprocates in said cylinder, an intake means for taking an air into said cylinder, an exhaust means for discharging a combustion gas from said cylinder, a fuel injector for injecting directly a fuel into said cylinder, a fuel supply means for supplying the fuel into said fuel injector, and an ignition means for igniting an air-fuel mixture which is the air taken in said cylinder according to said intake means and the fuel injected into said cylinder using said fuel injector, the internal combustion engine characterized in thatsaid fuel injector generates a fuel spray which has a cut out portion in which a fuel spray is thin in a peripheral direction in a lateral cross-section crossing a valve axial line of the fuel spray and injects said cut-out portion in which the fuel spray is thin toward a side of said piston, and the air taken in from said intake means is flown toward a side of said piston of the fuel spray to a side of said ignition plug.