Patent ID: 6338248
Filing Date: 2002-01-15
Classification: F02G,F23C

Abstract:
A heating and refrigerating machine, comprising:a hot piston; a porous-medium burner; and a heater head including a concave receptacle corresponding to a combustion chamber in which a gas-air mixture is combusted and corresponding to a housing for the hot piston, an exhaust gas radiating a thermal energy to the heater head, wherein: a part of an outer surface of the heater head forms a portion of the combustion chamber, the concave receptacle functions as the combustion chamber for the porous-medium burner, the concave receptacle encompasses a predominant portion of an outer side of the porous-medium burner, except for an intake surface for the gas-air mixture, and a transmission of heat to the heater head is brought about by convection and radiation.