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Title:
冷凍サイクル装置
Document Type and Number:
Japanese Patent JP5389184
Kind Code:
B2
Abstract:
In a refrigeration cycle apparatus that recovers power in an expander, obtaining a refrigeration cycle apparatus that is capable of reliably starting up the expander compared to conventional refrigeration cycle apparatuses. The refrigeration cycle apparatus includes a refrigerant circuit having a first compressor 2, a radiator 4, an expander 5 and an evaporator 6 connected in series with a piping; and a second compressor 3 disposed between the first compressor 2 and the radiator 4, the second compressor 3 being driven by power recovered by the expander 5. The second compressor being a positive displacement compressor. The refrigeration cycle apparatus, further including a pressure regulating device (a bypass and an on-off valve) that maintains a pressure on a discharge side of the second compressor to be lower than a pressure on a suction side of the second compressor at least until the second compressor is started up.

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Inventors:
Yusuke Shimazu
Keisuke Takayama
Masayuki Tsunoda
Hideaki Nagata
Hatomura Jie
Application Number:
JP2011535233A
Publication Date:
January 15, 2014
Filing Date:
October 07, 2009
Export Citation:
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Assignee:
Mitsubishi Electric Corporation
International Classes:
F25B1/10; F25B1/00; F25B41/04
Domestic Patent References:
JP2009109158A2009-05-21
JP2008128576A2008-06-05
JP2003307358A2003-10-31
JP2009204201A2009-09-10
JPH1194379A1999-04-09
JP2006132818A2006-05-25
JP2009162438A2009-07-23
Foreign References:
WO2008146709A12008-12-04
Attorney, Agent or Firm:
Hisao Kobayashi
Kiyoshi Yasushima
Takanashi Norio
Motoki Shandong
Taku Ogawa
Murata Kensei
Moto Otani