Title:
FREEZER USING MIXED REFRIGERANT
Document Type and Number:
Japanese Patent JP3155653
Kind Code:
B2
Abstract:
PURPOSE: To enable the composition ratio of the refrigerant of a freezer to be controlled and improve the control responding characteristics even though the refrigerant is non-azeotropic refrigerant or azeotropic refrigerant.
CONSTITUTION: A refrigerant storing container 13 is arranged in a circuit of freezing cycle comprising a compressor 1, a four-way valve 9, a utilization side heat exchanger 3, a heat source side heat exchanger 5 and a pressure reducing device 7, and a freezer oil 15 into which mixed refrigerant can be solved is enclosed within the refrigerant storing container 13. Then, there is provided a control means for applying variation in pressure or temperature to the freezer oil 15 within the refrigerant storing container 13.
Inventors:
Tetsuo Sano
Yasuhiro Arai
Hideaki Motohashi
Yasuhiro Arai
Hideaki Motohashi
Application Number:
JP24290093A
Publication Date:
April 16, 2001
Filing Date:
September 29, 1993
Export Citation:
Assignee:
Toshiba Carrier Corporation
International Classes:
F25B1/00; F25B13/00; (IPC1-7): F25B1/00
Attorney, Agent or Firm:
Hidekazu Miyoshi