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Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/025533
Kind Code:
A1
Abstract:
A refrigeration cycle device (10) is provided with a compressor (11), a radiator (12), a decompression mechanism (13), an evaporator (14), and a water detection device (20) that detects a change of the quantity of water in an oil-containing refrigerant circulating in a cycle. The water detection device has, in a housing (21) forming a refrigerant inflow space (211) therein, a pair of electrodes (22, 23), at least respective parts of which are disposed at a predetermined interval. Furthermore, the water detection device has a water absorbing member (24), which is disposed between the pair of electrodes, and which is configured by containing a water absorbing substance (241) that changes electrostatic capacitance in accordance with the water absorption quantity. The water detection device also has a measuring unit (25) that quantitatively measures the electrostatic capacitance between the pair of electrodes as a physical quantity correlated with the quantity of the water in the refrigerant.

Inventors:
MIDORIKAWA Maro (Showa-cho Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2017/023397
Publication Date:
February 08, 2018
Filing Date:
June 26, 2017
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F25B49/02; G01N27/22
Attorney, Agent or Firm:
YOU-I PATENT FIRM (Nagoya Nishiki City Bldg. 4F 1-6-5, Nishiki Naka-ku, Nagoya-sh, Aichi 03, 〒4600003, JP)
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