Abstract: This invention relates to a chargeable fan heater capable of operation without external power supply, having a burner for burning fuel to produce hot combustion gas, a sterling engine having a shaft and for producing shaft works by the thermal energy from the hot combustion gas, a fan for discharging the hot combustion gas to spaces to be heated, a combined motor-generator connected to the sterling engine and for supplying shaft works to the shaft in starting of the fan heater and generating electricity by the shaft works of the sterling engine during normal operation of the fan heater after starting, a battery for supplying power to the combined motor-generator and being charged by the electricity generated in the combined motor-generator, and a control box for controlling the supply of power to the electric parts of the fan heater necessary for operation of the fan heater, burning of the burner and, the combined motor-generator to act as a motor in starting and as a generator after starting, of the fan heat

Abstract: A Stirling cycle type cold air generating device comprising a Stirling module having a module cylinder and a module piston disposed in the module cylinder to be vertically reciprocated, a magnetic pole piston extending downwardly from a lower end of the module piston, the magnetic pole piston being moved integrally with the module piston, a pump cylinder disposed beneath a module cylinder of a module and isolated therefrom, and a pump piston disposed in the pump cylinder to be vertically reciprocated, the pump piston defining an upper pumping chamber for pumping the heat transfer medium and a lower pumping chamber for pumping the brine in the interior of the pump cylinder. The magnetic pole piston and the pump piston are magnetically connected by means of a magnetic coupling disposed around both the module cylinder and the pump cylinder to move vertically therealong.

Abstract: A cooling system for a stirling engine, a cooler composed of thermoelectric heat pump for transferring heat by electric energy, to cooling pipes which are connected from power chamber to regenerator, a cooling chamber disposed around the cooler, and an air pre-heater disposed at a side of combustion chamber, whereby the operating fluid of engine is cooled by utilizing the thermoelectric heat pump so that circulation of continuous cooling water is not required and heat taken out of the operating fluid is made to use for the pre-heating of the air to be fed to the combustion chamber.