Stable combustion is achieved in an internal combustion engine, in cases where an air stream has occurred in a cylinder (2). The engine includes a fuel injection valve (6) having a first nozzle hole (6a1) and a second nozzle hole (6a2), and an ignition dev...

Stable combustion is achieved in an internal combustion engine, in cases where an air stream has occurred in a cylinder (2). The engine includes a fuel injection valve (6) having a first nozzle hole (6a1) and a second nozzle hole (6a2), and an ignition dev...

A direct fuel injection internal combustion engine comprises a combustion chamber (1), a fuel injection valve (11) and a spark plug (12). The combustion chamber (1) has a piston (4, 104) including an outer cavity (16, 116) located in a top surface of the p...

Superior piston bowl and combustion chamber configurations are designed for a reverse tumble spark ignition direct injection engine. The piston includes a shallow bowl extending from adjacent an edge of the piston head to an inner side slightly beyond a pe...

To provide a simple piston structure for a direct-injection spark-ignition engine which can properly stratify the mixture in the proximity of the spark plug in the stratified-combustion operation, without impairing the reliable ignition of the spark plug. ...