Patent ID: 8776517

Claim:
A method of cooling input charge flow, which includes at least one of an exhaust gas recirculation (EGR) source and a charge air source, upstream of an intake internal combustion engine, comprising: providing the input charge flow to a boiler a Rankine power cycle subsystem to transfer heat from the input charge to a working fluid of the Rankine power cycle subsystem and vaporize the working fluid; converting the energy of the transferred heat; condensing the working fluid from which the energy was converted; pumping the condensed working fluid to move the working fluid though the Rankine power cycle; determining a target temperature of the input charge sufficient to meet or exceed predetermined target emissions; sensing the temperature of the input charge flow exiting the boiler; and controlling at least one parameter of the Rankine power cycle to maintain temperature of the input charge at or below the target temperature corresponding to said predetermined target emissions having been met or exceeded.