Title:
AIR CONDITIONER AND REFRIGERANT LEAK DETECTION METHOD
Document Type and Number:
WIPO Patent Application WO/2024/009394
Kind Code:
A1
Abstract:
An air conditioner (1) comprises: a refrigerant circuit (200) including a compressor (30), a high-pressure-side heat exchanger, an expansion device (70), and a low-pressure-side heat exchanger and configured to circulate a non-azeotropic mixed refrigerant; a control device (100) that controls the refrigerant circuit (200); and at least one pressure sensor (91, 92) that measures the pressure of the refrigerant flowing through the refrigerant circuit (200). When a single refrigerant is obtained in the refrigerant circuit (200) by recovering the non-azeotropic mixed refrigerant flowing through the refrigerant circuit (200), and the amount of decrease in the measured value of the at least one pressure sensor (91, 92) is equal to or greater than the threshold value, the control device (100) determines that a refrigerant leak has occurred in the refrigerant circuit (200).
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Inventors:
ONO YUSEI (JP)
ISHIYAMA HIROKI (JP)
ISHIYAMA HIROKI (JP)
Application Number:
PCT/JP2022/026716
Publication Date:
January 11, 2024
Filing Date:
July 05, 2022
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B49/02
Domestic Patent References:
| WO2019021346A1 | 2019-01-31 | |||
| WO2019053858A1 | 2019-03-21 | |||
| WO2021192275A1 | 2021-09-30 | |||
| WO2019021428A1 | 2019-01-31 |
Foreign References:
| JPH0854161A | 1996-02-27 | |||
| JPH08261607A | 1996-10-11 | |||
| JPH07198235A | 1995-08-01 | |||
| JP2019052819A | 2019-04-04 | |||
| JP2001141322A | 2001-05-25 | |||
| JP2008256254A | 2008-10-23 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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