Patent ID: 6269640
Filing Date: 2001-08-07
Classification: F02G,F05C,F25B,F28D,F28F,H02K

Abstract:
An apparatus comprising:(a) a heat engine comprising:(i) a container defining a sealed region within which a working fluid is circulated when the heat engine is in use, the sealed region having a heating chamber and a cooling chamber, the heating and cooling chambers being in fluid flow communication via a working fluid passageway;(ii) a variable heat source thermally connected to the heating chamber whereby the variable heat source provides variable heat levels to the working fluid;(iii) a displacer movably mounted in the sealed region between a first position and a second position to define a displacer cycle profile;(iv) a piston movably mounted in the sealed region between a first position and a second position to define a piston cycle profile;(b) an power output member drivenly connected to the heat engine and having an output for supplying work; and,(c) a feedback member responsive to power demand from the power output member to modulate the amount of heat provided by the heat source to the working fluid.