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Title:
MONITORING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/026587
Kind Code:
A1
Abstract:
A monitoring system (1) equipped with a control device (15) which determines that there is an insufficiency in the refrigerant flowing in a refrigeration cycle device (2) when all of the following conditions (A) – (E) are satisfied. The conditions are: (A) a detection value (Pd2) from a high-pressure-side pressure detection unit is less than the previous detection value (Pd1), and a detection value (Ps2) from a low-pressure-side detection unit is less than the previous detection value (Ps1); (B) a detection value (Tamb2) from an ambient temperature detection unit is greater than or equal to the previous value (Tamb1); (C) a detection value (Tcab2) from an internal air temperature detection unit is greater than or equal to the previous value (Tcab1); (D) a condenser air volume mode (Mcond2) is less than or equal to the previous air volume mode (Mcond1); and (E) an evaporator air volume mode (Meva2) is greater than or equal to the previous air volume mode (Meva1).

Inventors:
TAGUCHI Shota (Showa-cho Kariya-cit, Aichi 61, 〒4488661, JP)
Application Number:
JP2018/026371
Publication Date:
February 07, 2019
Filing Date:
July 12, 2018
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F25B49/02; F25B1/00
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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