Title:
FREEZING CYCLE
Document Type and Number:
WIPO Patent Application WO/2012/169146
Kind Code:
A1
Abstract:
A first compressor (11) and a second compressor (12) are connected in series to constitute an economizer freezing cycle during an air-warming operation mode, in which the compression ratio is higher than in an air-cooling operation mode, and reducing the compression ratio in each of the compressors (11, 12) enhances cycle efficiency. During air-cooling operation mode, the first compressor (11) and the second compressor (12) are connected in a row to constitute an ordinary freezing cycle, and the refrigerant discharge capacity in the compressors (11, 12) is exhibited to enhance cycle efficiency.
Inventors:
TAKIZAWA RYO (JP)
TANIGUCHI MASAMI (JP)
TANIGUCHI MASAMI (JP)
Application Number:
PCT/JP2012/003497
Publication Date:
December 13, 2012
Filing Date:
May 29, 2012
Export Citation:
Assignee:
DENSO CORP (JP)
TAKIZAWA RYO (JP)
TANIGUCHI MASAMI (JP)
TAKIZAWA RYO (JP)
TANIGUCHI MASAMI (JP)
International Classes:
F25B1/10; F25B1/00; F25B13/00
Foreign References:
| JP2010121801A | 2010-06-03 | |||
| JP2006170488A | 2006-06-29 | |||
| JPH06307727A | 1994-11-01 | |||
| JPH028660A | 1990-01-12 | |||
| JPH03102150A | 1991-04-26 |
Attorney, Agent or Firm:
KIN, Junhi (JP)
Gold Junki (JP)
Gold Junki (JP)
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Claims: