F - Mech Eng,Light,Heat,Weapons – 25 – B
Patent
F - Mech Eng,Light,Heat,Weapons
25
B
F25B 30/02 (2006.01) F24F 3/06 (2006.01) F25B 13/00 (2006.01) F25B 41/00 (2006.01)
Patent
CA 2181095
A heat pump apparatus includes a compressor, an expander, at least three heat exchangers and a cooling-medium route switchover device for switching over cooling-medium (refrigerant) route to the heat exchangers so as to selectively provide a two- evaporator operation mode in which two of the heat exchangers are used as evaporators and the other heat exchanger is used as a condenser and a two-condenser operation mode in which two of the heat exchangers are used as condensers and the other heat exchanger is used as an evaporator. The heat exchangers used as evaporators in the two-evaporator operation mode or as condensers in the two-condenser operation mode are serially connected with each other.
Hamada Kaoru
Uchikawa Yasuo
Kubota Corporation
Marks & Clerk
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