IC engine with stratified charge - has spherical antechamber in cylinder head containing fuel injector nozzle and sparkplug electrodes

摘要

Cylinder head has a spherical ante chamber. The ante chamber volume is preferably as great as possible but not more than 90% of the combined ante chamber and main combustion chamber compression space. The ante chamber also contains the spark plug electrodes (8) and the fuel injector nozzle (7). The connecting channel (6) between the ante chamber and the main combustion chamber is inclined to prevent the fuel from being blown into the main combustion chamber. The connecting channel cross section is up to 10% of the cylinder bore cross section and inclined at an angle to the cylinder axis to promote a strong turbulence.