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Patent Searching and Data


Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/161837
Kind Code:
A1
Abstract:
A refrigeration cycle device (100) according to the present invention is provided with: a compressor (1); a first heat exchanger (2); a second heat exchanger (4); a third heat exchanger (6); a first expansion valve (3); a second expansion valve (7); and a flow passage switching unit (5). The flow passage switching unit (5) switches a refrigerant circulation flow passage between a first circulation flow passage and a second circulation flow passage (CF2). The first circulation flow passage is formed such that the refrigerant circulates sequentially through the compressor (1), the first heat exchanger (2), the first expansion valve (3), and the second heat exchanger (4). The second circulation flow passage is formed such that the refrigerant circulates sequentially through the compressor (1), the third heat exchanger (6), the second expansion valve (7), and the second heat exchanger (4). The refrigerant circulates through the first circulation flow passage in a cooling operation and circulates through the second circulation flow passage in a dehumidification operation. The dehumidification operation has a first mode and a second mode. The degree of opening of the first expansion valve (3) in the second mode is greater than the degree of opening of the expansion valve (3) in the first mode.

Inventors:
ISHIKAWA TOMOTAKA (JP)
KOJIMA TOMONORI (JP)
Application Number:
PCT/JP2019/004274
Publication Date:
August 13, 2020
Filing Date:
February 06, 2019
Export Citation:
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Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B29/00; F25B1/00
Foreign References:
JPH01196466A1989-08-08
JPH06323689A1994-11-25
JPH05332638A1993-12-14
JP2008215682A2008-09-18
JP2011133171A2011-07-07
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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