| 摘要 |
<p>A drive train includes an engine having a power cylinder (12) with a power piston (4). Fuel is fed into a combustion chamber (2) located within the power cylinder at one side of the power piston. Intake and exhaust valves (16, 18), in fluid communication with the combustion chamber serve, respectively, to allow intake of air during an intake stroke of the power piston and exhaust of combustion products during an exhaust stroke of the power piston. A floating piston (5) at least partially closes the combustion chamber opposite the power piston and is mounted for reciprocating motion relative to the combustion chamber. The reciprocating motion of the floating piston includes a pressure relieving stroke in which the floating piston moves away from the combustion chamber responsive to a predetermined pressure being produced within the combustion chamber by combustion, to reduce the peak combustion pressure.</p> |
