Title:
REFRIGERATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/146805
Kind Code:
A1
Abstract:
Provided is a refrigerating device that can prevent compressor galling. A refrigerating device comprises: a refrigerant circuit (A) in which refrigerant is circulated and which comprises a compressor (101) that is provided internally with a compression chamber (6) to take in refrigerant and perform compression, a condenser (102), a pressure reducing device (103), and an evaporator (104); a pressure sensor (105) that measures a refrigerant pressure between the evaporator outlet and the refrigerant intake portion of the compression chamber; a predictive calculation device (106) that, from a history of pressures measured by the pressure sensor, calculates and predicts the pressure for a time point at which a preset time will have elapsed; and a low pressure protection device (107) that stops the compressor when the predicted value calculated and predicted by the predictive calculation device is lower than the set value.
Inventors:
KANDA MASAHIRO (JP)
KAMIKAWA MASAAKI (JP)
KAMIKAWA MASAAKI (JP)
Application Number:
PCT/JP2017/005109
Publication Date:
August 16, 2018
Filing Date:
February 13, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02; F04B49/10; F25B1/00
Foreign References:
| JP2005207644A | 2005-08-04 | |||
| JPH10339527A | 1998-12-22 | |||
| JP2015206518A | 2015-11-19 | |||
| JP2016090177A | 2016-05-23 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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