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Patent Searching and Data


Title:
AIR CONDITIONING DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/019688
Kind Code:
A1
Abstract:
An air conditioning device (1) comprises a first refrigerant circuit (2) filled with a first refrigerant and a second refrigerant circuit (3) filled with a second refrigerant. The first refrigerant circuit (2) includes a compressor (10) that compresses the gas-phase first refrigerant, an outdoor heat exchanger (13) that exchanges heat between outside air and the first refrigerant, an expansion device (24) that decompresses and expands the first refrigerant, and a first channel (H1) through which the first refrigerant passes. The second refrigerant circuit (3) includes a pump (23) that pressurizes and transports the liquid-phase second refrigerant, a second channel (H2) through which the second refrigerant passes, indoor heat exchangers (31, 41) that perform heat exchange between the second refrigerant and indoor air, and a first tank (17) for gas ventilation that is provided in first piping (11L1, 11L2) in the second refrigerant circuit (3). The first piping (11L1, 11L2) is connected to the pump (23), and the second refrigerant taken in by the pump (23) passes through said piping.

Inventors:
YOKOYAMA TETSUHIDE (JP)
YANACHI SATORU (JP)
ITO MASAHIRO (JP)
NAGANO TOMOHIRO (JP)
NISHIYAMA TAKUMI (JP)
SATO TSUYOSHI (JP)
Application Number:
PCT/JP2019/029839
Publication Date:
February 04, 2021
Filing Date:
July 30, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/00
Foreign References:
JP2008209075A2008-09-11
JP2013210146A2013-10-10
JP2013088027A2013-05-13
JP2005172416A2005-06-30
JPH07269964A1995-10-20
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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