Expansion/Power stroke: The charge is combusted in the combustion chamber which gives power to the engine by means of operating the piston again from T.D.C to B.D.C. In this stroke both valves are in closed position.
Expansion/Power stroke: The charge is combusted in thecombustion chamber which gives power to the engine bymeans of operating the piston again from T.D.C to B.D.C.In this stroke both valves are in closed position.