EXTERNAL COMBUSTION CLOSED-CYCLE HEAT ENGINE

摘要

The present invention addresses the problem of providing an external combustion closed-cycle heat engine which includes a working gas displacer means, and a heater unit and a cooler unit. The working gas displacer means is adapted to provide a high flow rate and a constant displacement flow rate irrespective of an rpm, and operate under a high-temperature high-pressure environment. The heater and cooler units can be given a volume having nothing to do with the efficiency of the engine and designed and manufactured under a variety of conditions, while being simplified in structure, improved in efficiency, and facilitated in operation and maintenance. To this end, the working gas displacer means is provided in an air chamber so that the displacer is moved cooperatively with an open and close valve to displace the working gas.