Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/053447
Kind Code:
A1
Abstract:
In a serial dehumidifying and space heating mode, this refrigeration cycle device switches to a refrigerant circuit in which a refrigerant discharged from a compressor (11) circulates in order through a heating unit (13, 40), an outdoor-side pressure reducing unit (14a), an outdoor heat exchanging unit (15), an indoor-side pressure reducing unit (14b), an indoor evaporating unit (18), and a suction inlet port of the compressor (11). Further, in a hot gas dehumidifying and space heating mode, the refrigeration cycle device switches to a refrigerant circuit in which the refrigerant discharged from a compressor (11) circulates in order through an upstream-side branching portion (12a), the heating unit (13, 40), the indoor-side pressure reducing unit (14b), the indoor evaporating unit (18), merging portions (12g, 12h), and the suction inlet opening of the compressor (11), and additionally circulates in order through the upstream-side branching portion (12a), the heating portion (13, 40), a bypass-side pressure reducing unit (14c), the merging portions (12g, 12h), and the suction inlet opening of the compressor (11), and circulates in order through the upstream-side branching portion (12a), a bypass passage (21c), the merging portions (12g, 12h), and the suction inlet port of the compressor (11).
Inventors:
SUGIMURA KENGO (JP)
KAMI YUICHI (JP)
TAKEICHI KOTA (JP)
KAMI YUICHI (JP)
TAKEICHI KOTA (JP)
Application Number:
PCT/JP2023/030910
Publication Date:
March 14, 2024
Filing Date:
August 28, 2023
Export Citation:
Assignee:
DENSO CORP (JP)
International Classes:
F25B29/00; B60H1/22; F25B1/00
Foreign References:
| JP2021156567A | 2021-10-07 | |||
| JP2021071219A | 2021-05-06 |
Attorney, Agent or Firm:
KAI-SEI PATENT FIRM (JP)
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