External combustion engine

摘要

A Stirling cycle engine having a reciprocating power piston and a reciprocating displacer operating in cylinders having ports covered and uncovered by the motion of the piston and displacer. Ports of the power piston cylinder are connected to ports of the displacer cylinder through cooling means arranged to cool the working fluid. Various drive linkages are described which enable the motions of the power piston and the displacer to closely conform to the ideal Stirling cycle.