Heat pump device using a non-azeotropic mixture refrigerant

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United States of America

PATENT NO 12044452
SERIAL NO

18374453

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Importance

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Abstract

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In an air conditioner, during an operation, a gas-liquid two-phase non-azeotropic mixture refrigerant enters a receiver and accumulates in the receiver in a state where a gas phase and a liquid phase are separated. For example, when the non-azeotropic mixture refrigerant includes two components, i.e., a high-boiling refrigerant and a low-boiling refrigerant, the controller may estimate the ratio (composition ratio) between the low-boiling refrigerant and the high-boiling refrigerant in each of the gas phase and the liquid phase based on the temperature and the pressure of the non-azeotropic mixture refrigerant in the receiver. Thus, the controller may estimate the composition ratio of the liquid-phase non-azeotropic mixture refrigerant flowing out of the receiver as the composition ratio of the non-azeotropic mixture refrigerant circulating in the refrigerant circuit.

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Patent Owner(s)

Patent OwnerAddress
DAIKIN INDUSTRIES LTDOSAKA-SHI OSAKA 530-0001

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kaji, Ryuhei Osaka, JP 16 26
Kumakura, Eiji Osaka, JP 89 367
Nakayama, Masaki Osaka, JP 29 69
Tanaka, Masaki Osaka, JP 190 1563
Ueda, Hiroki Osaka, JP 100 685
Yoshimi, Atsushi Osaka, JP 74 455

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