Patent ID: 6568169
Filing Date: 2003-05-27
Classification: F01B,F02G

Abstract:
A heat engine comprising:a plurality of cavities, each cavity comprising: an expansion space in fluid communication with a compression space; a heat exchanger positioned between the expansion space and the compression space such that fluid traveling from one to the other passes through the heat exchanger; a rigid piston set comprising a set of pistons that move together; an expansion piston comprising a first surface of said piston set, the first surface defining a wall of the expansion space; a compression piston defining a wall of the compression space, said compression piston being a fluidic piston, fluid of said fluidic piston substantially filling a fluidic passageway extending from said compression space to a second surface of an adjacent piston set of an adjacent one of said plurality of cavities; and said engine further comprising a set of transfer pistons, each comprising a third surface of said piston set, for generating hydraulic power.