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Title:
OPERATION METHOD OF REFRIGERATING CYCLE DEVICE
Document Type and Number:
Japanese Patent JP2007170765
Kind Code:
A
Abstract:

To smoothly start a heat pump device by promptly ensuring high and low pressure difference in starting the heat pump device loading a compressor integrated with an expander.

This refrigerating cycle device is composed of a compressing portion of the compressor 210 integrated with the expander and compressing a refrigerant to high temperature and high pressure, a radiator 202 cooling the high-temperature high-pressure refrigerant, an expanding portion of the compressor 210 integrated with the expander, disposed at a downstream side in the flowing direction of the refrigerant with respect to the radiator 202 and reducing pressure and expanding the refrigerant, and an evaporator 204 evaporating the refrigerant by taking heat from the circumference, a second compressor 211 is disposed in parallel with the compressor 210 integrated with the expander, only the auxiliary compressor 211 is started to promptly ensure the high and low pressure difference in starting the refrigerating cycle, and then the compressor 210 integrated with the expander is started.


Inventors:
HONMA MASAYA
Application Number:
JP2005371445A
Publication Date:
July 05, 2007
Filing Date:
December 26, 2005
Export Citation:
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Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
F25B1/00; F25B11/02
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano



 
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