F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
49/25, 62/25, 62
F25B 15/00 (2006.01) F25B 30/04 (2006.01)
Patent
CA 1218856
ABSTRACT: "A method of operating a bimodal heat pump and a bimodal heat pump for operation by the method." A method of operating a bimodal heat pump which in a first mode operates as an absorption heat pump and in a second mode operates as an evaporation-condensation device at a comparatively low ambient temperature. When change-over from the first mode to the second mode, eva- porator 15 and absorber 23 are shut off from generator 1 and condenser 7. The generator 1 and condenser 7 are operated in the second mode as an evaporation-condensa- tion device, an extra quantity of working medium stored in the condenser 7 being released into the system. The heat pump comprises an overflow 83 from the condenser 7 to the evaporator 15, the level of the overflow deter- mining the extra quantity of the working medium and a closable pipe being connected to the generator 1 for supplying extra working medium to the generator 1 when starting the second mode. The heat pump is meant in particular for space heating and enables a choice to be made from various working media and solvents having different decomposition temperatures.
439821
Hermans Mathias L.
Van Der Sluys Willem L.n.
N.v.philips'gloeilampenfabrieken
Van Steinburg C.e.
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