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Patent Searching and Data


Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/043060
Kind Code:
A1
Abstract:
A refrigeration cycle device comprises a compressor (11), a heat exchanger for heating (12), a first pressure reducing device (15a), an outdoor heat exchanger (16), a second pressure reducing device (15b), a heat exchanger for cooling (18), an indoor air ratio adjusting unit (33), and a control device (40). The first pressure reducing device reduces the pressure of a refrigerant. The heat exchanger for cooling exchanges heat between the refrigerant that has had the pressure reduced by the second pressure reducing device with air before same passes through the heat exchanger for heating. A vapor pressure regulating valve adjusts the refrigerant evaporation pressure (Pe) in the heat exchanger for cooling. The indoor air ratio adjusting unit changes the indoor air ratio that is the ratio of air in the space to be air conditioned to air that has been heat exchanged in the heat exchanger for cooling. The control device controls operation of the indoor air ratio adjusting unit. The vapor pressure regulating valve increases the refrigerant evaporation pressure as the flow rate of the refrigerant flowing therein increases. In a first mode, the control device increases the indoor air ratio as the refrigerant evaporation temperature (Te) in the heat exchanger for cooling decreases.

Inventors:
KOBAYASHI Hiroyuki (C/O DENSO CORPORATION, 1-1 Showa-ch, Kariya-city Aichi 61, 〒4488661, JP)
Application Number:
JP2017/028663
Publication Date:
March 08, 2018
Filing Date:
August 08, 2017
Export Citation:
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Assignee:
DENSO CORPORATION (1-1 Showa-cho, Kariya-city Aichi, 61, 〒4488661, JP)
International Classes:
F25B1/00; B60H1/00; B60H1/22
Foreign References:
JP2012225637A2012-11-15
JPH06143996A1994-05-24
JPH11342725A1999-12-14
JP2003267035A2003-09-25
JP2013209006A2013-10-10
JP2006336901A2006-12-14
Attorney, Agent or Firm:
JIN Shunji (6th Floor, Takisada Bldg. 2-13-19, Nishiki, Naka-k, Nagoya-city Aichi 03, 〒4600003, JP)
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