Heat pump system for heating buildings - has hot air Carnot cycle engine driving reverse Carnot cycle pump

摘要

Heat pump system for heating buildings and industrial appts. uses two cyclic processes. The first cycle is used in a hot air engine working on the Carnot cycle. The mechanical energy produced is used in the second cycle, running in the reversed direction and possibly also in a Carnot cycle, to bring heat taken from a heat reservoir at lower temperature up to a higher temperature level. Preferably both cycles occur in a common, pressure-tight vessel, and the driven side is separated from the driving side by a piston, a diaphragm, or a gas-permeable, sieve-like heat-impermeable unit similar to the conventional regenerator of a Stirling engine. Electrical energy, is not required.