Patent ID: 8707914

Claim:
An internal combustion engine, comprising: an engine body including a plurality of cylinders; a cylinder head attached to the engine body along an interface and including a plurality of coolant passages formed therein; a waste heat recovery system including a waste heat recovery circuit, which includes a plurality of waste heat recovery passages formed within at least one of the cylinder head and the engine body and sealed from the plurality of coolant passages, the plurality of waste heat recovery passages including a first manifold passage extending longitudinally along a first side of the engine along a first side of the plurality of cylinders, a second manifold passage extending longitudinally along a second side of the engine along a second side of the plurality of cylinders, and at least one transverse passage extending from the first manifold passage to the second manifold passage and fluidly connected to the first manifold passage and the second manifold passage, at least one of the plurality of waste heat recovery passages is positioned axially between at least one coolant passage and the interface; and a pump positioned along the waste heat recovery circuit upstream from the plurality of waste heat recovery passages, and an energy conversion portion positioned along the waste heat recovery circuit downstream from the plurality of waste heat recovery passages, the pump operable to transport a working fluid through the waste heat recovery circuit.