Four stroke internal combustion engine

Details Four stroke internal combustion engine Four stroke internal combustion engine

2011-07-19

2011-07-19

Solis, Erick (Department: 3747)

Internal-combustion engines

Charge forming device

Exhaust gas used with the combustible mixture

C123S568140, C123S306000, C123S308000

Reexamination Certificate

active

07980232

ABSTRACT:
A four stroke internal combustion engine has a gas reserving chamber100which communicates with an exhaust port31and is configured to reserve burned gas discharged from a combustion chamber. The burned gas flows into the gas reserving chamber100while an exhaust valve including a valve head32aand a stem32bis opened in an expansion stroke. The burned gas reserved in the gas reserving chamber100is discharged to the combustion chamber while the exhaust valve is opened in an intake stroke.

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Official Communication issued in corresponding European Patent Application No. 07768362, completed on Feb. 18, 2010.
International Search Report dated Sep. 4, 2007.

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