| abstract |
An internal combustion engine ( 10 ) comprises an engine block ( 12 ) having at least one combustion cylinder ( 18 ), an air intake port ( 56 ) and an exhaust port ( 58 ) each in communication with the combustion cylinder ( 18 ), a piston ( 16 ) reciprocatingly disposed within each combustion cylinder ( 18 ), and an exhaust stack ( 26 ) in communication with each exhaust port ( 58 ). A heat transfer system ( 28 ) has a circuit tube ( 32 ) with a first portion ( 34 ) in heat transfer relationship with the exhaust stack ( 26 ), a second portion ( 42 ) defining a heat conduction area, a flow valve ( 38 ) in the circuit tube ( 32 ), and a heat transfer agent within the circuit tube ( 32 ). A cooling system ( 30 ) has a circuit conduit ( 44 ) with a first section ( 52 ) defining a heat receiving area in thermal contact with the heat conduction area ( 42 ) of the heat transfer system ( 28 ). The cooling system ( 30 ) further has a second section ( 46 ) defining a cooling area, a restriction ( 54 ) in the circuit conduit ( 44 ) between the first section ( 52 ) and the second section ( 46 ) upstream of the second section ( 46 ), and a refrigerant within the circuit conduit ( 44 ). |