Piston-pump system for two/four stroke petrol/diesel engine, has piston for retaining pre-compressed fresh gas in combustion chamber by burnt gas before or after closing exhaust port of combustion chamber by piston crown

摘要

The system has a piston for retaining burnt gases expanded in a lower cylinder and for retaining pre-compressed fresh gas in a combustion chamber by the burnt gas before or after closing exhaust port of the combustion chamber by a piston crown. The burnt gas is released in a determined zone and forced into atmosphere by descending phase of the piston.