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Patent Searching and Data


Title:
AIR CONDITIONING APPARATUS AND OUTDOOR UNIT
Document Type and Number:
WIPO Patent Application WO/2021/014525
Kind Code:
A1
Abstract:
Provided is an air conditioning apparatus that exhibits the effect of making it possible to reduce the amount of refrigerant needed to fill both a first refrigerant circuit in which a load-side heat exchanger is made to function as an evaporator and a heat-source-side heat exchanger is made to function as a condenser, and a second refrigerant circuit in which the heat-source-side heat exchanger is made to function as an evaporator and the load-side heat exchanger is made to function as a condenser. An air conditioning apparatus 100 comprises a compressor 10, an expansion valve 15, an outdoor heat exchanger 12, an indoor heat exchanger 20, a first cooler 13 and a second cooler 14, and a four-way valve 11 for switching the refrigerant circuit in which refrigerant circulates. The four-way valve 11 switches between: a first refrigerant circuit 5a through which refrigerant circulates in the order of compressor 10, outdoor heat exchanger 12, first cooler 13, expansion valve 15, indoor heat exchanger 20, and compressor 10; and a second refrigerant circuit in which refrigerant circulates in the order compressor 10, indoor heat exchanger 20, second cooler 14, expansion valve 15, outdoor heat exchanger 12, and compressor 10.

Inventors:
MAKINO HIROAKI (JP)
ISHIDA HIROTAKA (JP)
Application Number:
PCT/JP2019/028625
Publication Date:
January 28, 2021
Filing Date:
July 22, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B13/00
Domestic Patent References:
WO2016071955A12016-05-12
Foreign References:
JPH0275863A1990-03-15
JP2010031728A2010-02-12
JPH06213518A1994-08-02
US20150276271A12015-10-01
Attorney, Agent or Firm:
MURAKAMI, Kanako et al. (JP)
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