Title:
冷凍サイクル装置
Document Type and Number:
Japanese Patent JP4765675
Kind Code:
B2
Abstract:
In a refrigeration cycle apparatus having an expansion mechanism whose number of revolutions can be changed independently from the number of revolutions of a compressing mechanism, it is an object of the invention to adjust a circulation amount of a refrigerant flowing into the expansion mechanism in a wider range without deteriorating the reliability of the expansion mechanism, and to operate the refrigeration cycle apparatus efficiently. The refrigeration cycle apparatus comprises a compressing mechanism 2, a heat source-side heat exchanger 6, an expansion mechanism 5 which collects power and has the number of revolutions that can be changed independently from the number of revolutions of the compressing mechanism 2, a utilizing-side heat exchanger 3, and a pre-expansion valve 11 for decompressing a refrigerant flowing into the expansion mechanism 5. With this refrigeration cycle apparatus, when the high pressure-side pressure can not be adjusted to a preferable pressure without bringing the number of revolutions of the expansion mechanism 5 out from its using range, the high pressure-side pressure can be adjusted by operating an opening of the pre-decompressor. Therefore, the refrigeration cycle apparatus can be operated efficiently without deteriorating the reliability of the expansion mechanism.
Inventors:
Noriho Okaza
Kazuo Nakatani
Kazuo Nakatani
Application Number:
JP2006057417A
Publication Date:
September 07, 2011
Filing Date:
March 03, 2006
Export Citation:
Assignee:
Panasonic Corporation
International Classes:
F25B11/02; F25B1/00
Domestic Patent References:
| JP2003194432A | ||||
| JP2003139429A | ||||
| JP2004325018A | ||||
| JP2004150749A |
Attorney, Agent or Firm:
Hiroki Naito
Daisuke Nagano
Kentaro Fujii
Daisuke Nagano
Kentaro Fujii