Patent ID: 8839747

Claim:
A composite power cycle engine, comprising: a fuel injector that injects fuel into air that is or is to be supplied into a combustion chamber; a high temperature medium injector that injects a high temperature medium into the combustion chamber and increases pressure of the combustion chamber; a low temperature medium injector that injects a low temperature medium into the combustion chamber and reduces pressure of the combustion chamber; and a piston that is disposed in the combustion chamber to slidably move therein and that transforms gas expansion or contraction energy into kinetic energy; wherein the high temperature medium injector or the low temperature medium injector increases or reduces the pressure of the combustion chamber so as to generate power; wherein in a deactivated cylinder of which the fuel injector is not operated, the high temperature medium injector or the low temperature medium injector is disposed in the deactivated cylinder to be operated.