Patent ID: 8484991
Filing Date: 2013-07-16
Classification: F25B,Y02B

Abstract:
1. A heat pump comprising a cooling mode, comprising: a heat-pump liquefier configured for liquefying a vaporized working liquid in a heat-pump mode, the heat-pump liquefier being configured to be, in the cooling mode, a cooling evaporator for vaporizing the working liquid, the heat-pump liquefier comprising a heating advance flow and a heating backflow associated therewith, the cooling evaporator being configured to be able to be brought to such a pressure that a vaporization temperature is below a temperature of an object to be cooled in the cooling mode to which the heating backflow and the heating advance flow are thermally coupled, wherein the object is to be heated in the heating-pump mode, and wherein a temperature in the heating advance flow is higher than a temperature in the heating backflow in the heat-pump mode, and wherein the temperature in the heating advance flow is lower than the temperature in the heating backflow in the cooling mode; a dynamic-type compressor configured to operate, in the heat-pump mode, as a motor-driven compressor, the dynamic-type compressor comprising a rotatable wheel, and the dynamic-type compressor being configured to operate, in the cooling mode, as a generator and being coupled to the cooling evaporator; a heat-pump evaporator configured for evaporating the working liquid in the heat-pump mode, the heat-pump evaporator being, in the cooling mode, a cooling liquefier coupled to the dynamic-type compressor, the cooling liquefier comprising a temperature which is lower than the temperature of the heating backflow, and the cooling liquefier being configured to be able to be brought to a pressure which is smaller than the pressure to which the cooling evaporator may be brought; and a filling/extraction device configured to remove, in the heat-pump mode, working liquid from the cooling evaporator, and to fill, in the cooling mode, the working liquid into the cooling evaporator.