GASOLINE DIRECT INJECTION INTERNAL COMBUSTION ENGINE

摘要

[PROBLEM] IN A GASOLINE DIRECT INJECTION INTERNAL COMBUSTION ENGINE, TO ACHIEVE IMPROVEMENT OF FUEL EFFICIENCY AND EXHAUST EMISSION BY PREVENTING OR CONTROLLING DIFFUSION AND SEPARATION OF AIR-FUEL MIXTURE DUE TO SQUISH.[MEANS FOR RESOLUTION] A FUEL INJECTION VALVE 60 OF THE GASOLINE DIRECT INJECTION INTERNAL COMBUSTION ENGINE INJECTS AIR-FUEL MIXTURE SO THAT THE OUTER PERIPHERY 63a OF THE INJECTION FLOW 65 FALLS INTO A CAVITY 51 OF A PISTON DURING COMPRESSION STROKE.BY THE COOPERATION OF A SQUISH AREA 54 FORMED ON THE PERIPHERAL PORTION 53 OF THE PISTON 5 AND A SQUISH AREA 34 FORMED UNDER THE CEILING SURFACE 30 OF A CYLINDER HEAD 3, WHICH DEFINES A COMBUSTION CHAMBER 8 , AN OBLIQUE SQUISH 20 DIRECTED UPWARD TOWARD THE INJECTION CENTERLINE ON THE PERIPHERAL PORTION 53 AND FLOWS ALONG AN OPPOSED PORTION 30A OF THE CEILING SURFACE 30, WHICH IS LOCATED UPWARDLY OF THE OPENING OF THE CAVTY 51 AND OPPOSES THE SAME IS GENERATED.