Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/138419
Kind Code:
A1
Abstract:
In order to ensure refrigeration performance when a carbon dioxide refrigerant is used, this refrigeration device (R) has a refrigerant circuit configured from a compressor (11) having a first rotary compression element (14) and a second rotary compression element (16) driven by the same rotary shaft, a gas cooler (28), an electromagnetic expansion valve (39), and an evaporator (41), and is equipped with an electric expansion valve (33), a tank (36), a split heat exchanger (29), an electric expansion valve (43), an electric expansion valve (47), an electric expansion valve (70), an auxiliary circuit (48), a main circuit (38), a control device (57), an auxiliary compressor (60), a bypass circuit (73), and a return circuit (80). Refrigerant that has passed through the electric expansion valve (70) and a first flow path (29A) of the split heat exchanger (29) and/or refrigerant that has passed through the bypass circuit (73) is drawn into the auxiliary compressor (60).
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Inventors:
TSUIHIJI RYOSUKE
KUWABARA OSAMU
KIYA TOYOAKI
MORI TORU
KUWABARA OSAMU
KIYA TOYOAKI
MORI TORU
Application Number:
PCT/JP2017/003661
Publication Date:
August 17, 2017
Filing Date:
February 01, 2017
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
F25B1/10; F25B1/00
Domestic Patent References:
| WO2014068967A1 | 2014-05-08 |
Foreign References:
| JP2013167386A | 2013-08-29 | |||
| JP2011508181A | 2011-03-10 | |||
| JP2008241125A | 2008-10-09 |
Attorney, Agent or Firm:
WASHIDA, Kimihito (JP)
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