Patent ID: 7841201
Filing Date: 2010-11-30
Classification: F04D,F24D,F25B,F28D,F28F,Y02A,Y02B

Abstract:
1. A heat pump comprising: an evaporator for evaporating water as a working liquid to generate a working vapor, the evaporator comprising an evaporation chamber and being adapted to generate an evaporation pressure of less than 20 hPa within the evaporation chamber, so that the water will evaporate at temperatures below 18° C., the evaporator comprising a dynamic-type compressor coupled to the evaporator for compressing the working vapor, the dynamic type compressor being adapted to compress the working vapor to a working pressure of more than 5 hPa above the evaporation pressure; and a liquefier for liquefying the compressed working vapor, the liquefier being adapted to output a heat which has been acquired during the liquefaction to a heating system.