The invention relates to an internal combustion engine with direct injection and supercharging in which the ignitability deteriorates because the density of the fuel at the spray center becomes excessive due to the shrinkage of the fuel spray under the sup...

This invention proposes a fuel injection control device for a direct injection engine which performs stable stratified charge combustion by increasing the degree of charge stratification in the air-fuel mixture through discrete double fuel injection by a f...

A piston for an in-cylinder injection engine capable of effecting an increased compression ratio and a higher output without difficulty in layout and smoke generation. Said piston for an in-cylinder injection engine in which intake valves and exhaust valve...

The invention relates to an internal combustion engine in which a fuel spray is directed toward an ignition plug (700). To a L shape fuel injection hole outlet portion of a swirl type fuel injector L shape cut out is provided and the fuel spray (100) is fo...

The engine has two inlet valves (5) with fully variable lifts located in the combustion chamber bowl (1). The injector (4) away from the circumferential region (1') of the bowl in the direction of the inlet valves is located with its injector tip (6) centr...

Internal combustion engine of an in-cylinder fuel injection type with at least one piston provided within a cylinder bore having a cylinder bore axis; a recess which is provided on a top surface of the piston; said recess extends from a first to a second s...

A stratified-charge combustion chamber system for a direct-injection spark-ignited (DISI) engine with a swirl-type airflow (32). An asymmetrical combustion bowl (25) design in the top wall of the piston (12) provides a wide area (40) on the downstream side...

A stratified-charge combustion system design for direct-injection spark-ignited engines with the piston bowl (42) in the exhaust-valve side. The air flow from the inlet valve provides a normal tumble in-cylinder air flow. The fuel injector (34) is position...

The combustion engine comprises a combustion chamber which is formed between the underside of the cylinder head (11), the upper side of the butt, and a cylinder tread. Two air inlet channels (15) with valves, an air outlet channel (16) with a valve, as wel...