Title:
AIR CONDITIONER
Document Type and Number:
WIPO Patent Application WO/2024/024659
Kind Code:
A1
Abstract:
In an air conditioner according to one embodiment, a refrigerant circuit for circulating a refrigerant has connected thereto: a compressor that compresses the refrigerant; an indoor heat exchanger; an outdoor heat exchanger; a heat storage heat exchanger that performs heat exchange between a heat storage material and the refrigerant; a plurality of expansion valves having adjustable opening degrees; and a plurality of switching valves that switch a circulation path of the refrigerant in the refrigerant circuit between a heat storage heating operation that causes the indoor heat exchanger and the heat storage heat exchanger to function as a condenser, and the outdoor heat exchanger to function as an evaporator, and a defrost heating operation that causes the indoor heat exchanger and the outdoor heat exchanger to function as a condenser, and the heat storage heat exchanger to function as an evaporator. One among the plurality of expansion valves is provided upstream of the outdoor heat exchanger in the case where the outdoor heat exchanger is caused to function as a condenser, and said one expansion valve reduces the pressure of the refrigerant flowing into the outdoor heat exchanger.
More Like This:
| WO/2011/094985 | AIR CONDITIONER AND PROCESS METHOD OF REFRIGERANT THEREOF |
| WO/2017/145619 | EXPANSION VALVE AND REFRIGERATION CYCLE |
Inventors:
NAKATA SHOHEI (JP)
KANEI KAZUKI (JP)
KANEI KAZUKI (JP)
Application Number:
PCT/JP2023/026736
Publication Date:
February 01, 2024
Filing Date:
July 21, 2023
Export Citation:
Assignee:
FUJITSU GENERAL LTD (JP)
International Classes:
F25B13/00; F25B1/00; F25B47/02
Domestic Patent References:
| WO2015063846A1 | 2015-05-07 |
Foreign References:
| JPH07190534A | 1995-07-28 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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