US Patent 7798204 Centrifugal condenser

A centrifugal condenser in an engine has a stacked arrangement of interleaved plates surrounding a central core. Exhaust steam from the engine is directed through interior cavities of the plates while external cooling air from intake blowers circulates over outer surfaces of the plates to cool the plates and condense the steam on the opposite inner side of the plates. The water condensation is returned to a collection pan or sump for subsequent use in the engine.