Refrigerating device

Japanese Patent JP6264688

B2

The invention provides a freezing apparatus. When the high pressure side is up to a critical pressure, a compression mechanism can be prevented from being influenced by the high pressure, and the freezing capacity of the freezing apparatus can be prevented from being influenced by outside air temperature. The freezing apparatus comprises an electric expansion valve (33) that is connected to the downstream side of an air cooler (28) and the upstream side of an electric expansion valve (39); a casing (36) that is connected to the downstream side of the freezing apparatus and the upstream side of an electric expansion valve (39); a separating heat exchanger (29) that is set at the downstream side of the freezing apparatus and the upstream side of an electric expansion valve (39); an auxiliary circuit (48) that helps a refrigerant in the casing flows from electric expansion valves (43,47) into the separating heat exchanger, and then into the middle compression part of a compressor (11); and a main circuit (38) that helps the refrigerant flows from the lower part of the casing into the separating heat exchanger , and flows into the electric expansion valve (39) after heat exchange with the refrigerant flows in the first path; and a control apparatus (57) adjusts the pressure in the high pressure side of the refrigerant loop at the upstream side through the electric expansion valve (33).

Yusuke Kurata
Toyoaki Kiya
Kazuhiko Mihara
Hiroshi Hattogo
Mitsuhiro Kato

JP2014023180A

January 24, 2018

February 10, 2014

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Panasonic IP Management Co., Ltd.

F25B1/00; F25B41/34

JP2006112708A
JP2001133058A
JP2013174402A
JP2011133206A
JP2011133207A
JP2001208434A
JP4090453A
JP2005214444A
JP2011133205A

Koichi Washida

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