Patent ID: 6578359
Filing Date: 2003-06-17
Classification: F02G,H01L

Abstract:
A Stirling engine comprising:a communication path interconnecting an expansion chamber heated by a heating unit and a compression chamber cooled by a cooling unit; a heat regenerator disposed in the communication path for storing and radiating heat of an operating gas which flows between the expansion chamber and the compression chamber; and a thermoelectromagnetic generator (G) associated with the heat regenerator, wherein said thermoelectromagnetic generator (G) includes a yoke providing a closed magnetic circuit passing through the heat regenerator, magnetomotive force means for supplying magnetic flux to the magnetic circuit, and an induction coil responsive to a change in the magnetic flux in the magnetic circuit, and the heat regenerator is made of a ferromagnetic material having a Curie temperature (Tc) which is present in a range of varying temperatures of the heat regenerator.