Title:
HEAT PUMP DEVICE
Document Type and Number:
Japanese Patent JP3140333
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To improve a coefficient of performance through a changing-over of an order in flowing by a method wherein double evaporates oprationfor a heat exchanger for gas and another heat exchanger for liquid are performed in a first circulating state and a second circulating state and double condensers operation for these condensers is carried out in a first circulating state or a fourth circulating state.
SOLUTION: Under a double heat source mode, load side liquid L1 is heated with a heat exchanger 4B for liquid for a condenser being applied as a load side heat exchanger. A heat exchanger 3 for gas and a heat exchanger 4A for liquid for an evaporator are applied as a heat source side heat exchanger and then heating calorie required for heating at the heat exchanger 4B for liquid and heat are taken from gas G and liquid L2. In turn, in a double thermal radiation heat source mode, the load side liquid L1 is cooled with the heat exchanger 4A for liquid for the evaporator being applied as a load side heat exchanger and then waste heat generated in cooling at the heat exchanger 4A for liquid is radiated to the gas G and the liquid L2 with heat exchanger 3 for gas and the heat exchanger 4B for liquid for condenser being applied as the heat source side heat exchanger.
Inventors:
Yasuo Uchikawa
Kaoru Hamada
Kaoru Hamada
Application Number:
JP17884095A
Publication Date:
March 05, 2001
Filing Date:
July 14, 1995
Export Citation:
Assignee:
Kubota Corporation
International Classes:
F25B5/04; F24F3/06; F25B6/04; F25B13/00; F25B29/00; (IPC1-7): F25B29/00; F25B5/04; F25B6/04; F25B13/00
Attorney, Agent or Firm:
Shuichiro Kitamura