VIERTAKT-VERBRENNUNGSMOTOR

摘要

A four stroke internal combustion engine constructed in accordance with the present invention has a gas reserving chamber 100 communicating with an exhaust port 31 and reserving burned gases discharged from a combustion chamber. The burned gases flow into the gas reserving chamber 100 while an exhaust valve, which is formed with a valve head 32a and a stem 32b, opens in an expansion stroke. The burned gases reserved in the gas reserving chamber 100 are discharged to the combustion chamber while the exhaust valve opens in an intake stroke.