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Patent Searching and Data


Title:
AIR CONDITIONER, METHOD FOR CONTROLLING AIR CONDITIONER, AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2023/047534
Kind Code:
A1
Abstract:
This air conditioner (1A) comprises: a refrigerant circuit having a compressor (11), a condenser, a supercooling device (14), an expansion valve, and an evaporator; a first sensor (61A); a second sensor (62A); a third sensor (63A); and a controller (40). The controller (40) obtains a pressure value when a refrigerant becomes a saturated liquid at a temperature value measured by the second sensor (62A), obtains a pressure value at an outlet of the expansion valve on the basis of a pressure value or temperature value measured by the third sensor (63A), obtains a difference dP1 between a pressure value measured by the first sensor (61A) and the obtained pressure value of the saturated refrigerant, and a difference dP2 between the obtained pressure value of the saturated liquid and the pressure value at the outlet of the expansion valve, and adjusts the degree of opening of the expansion valve on the basis of the magnitude of the obtained difference dP2 relative to the obtained difference dP1.

Inventors:
HATTORI HIRONORI (JP)
MOTOMURA KOJIRO (JP)
KOBAYASHI TAKASHI (JP)
KODAMA TAKUYA (JP)
Application Number:
PCT/JP2021/035091
Publication Date:
March 30, 2023
Filing Date:
September 24, 2021
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B41/40; F25B1/00
Foreign References:
JP2011052884A2011-03-17
JP2019086239A2019-06-06
Attorney, Agent or Firm:
KIMURA Mitsuru (JP)
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