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Patent Searching and Data


Title:
REFRIGERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2017/006723
Kind Code:
A1
Abstract:
The present invention prevents a drop in performance and seizing of a compressor due to oil trapped inside an evaporator of a switchable showcase when a solenoid valve is provided on the refrigerant downstream side of the evaporator. A showcase (2A) is a switchable showcase able to be used so as to switch between a cooling mode for cooling inside a display space, a non-cooling mode where the display space is not cooled, and a heating mode for heating inside the display space using an electric heater (63). A control device (57) for the showcase (2A) controls the valve aperture of a low-stage expansion valve (34) and opens and closes the solenoid valve (37) in the cooling mode, and completely closes the opening of the low-stage expansion valve (34) and opens the solenoid valve (37) in the non-cooling mode and heating mode.

Inventors:
MIYAGI Kosuke (20 Kotobuki-cho, Isesaki-sh, Gunma 02, 〒3728502, JP)
KIMURA Makoto (20 Kotobuki-cho, Isesaki-sh, Gunma 02, 〒3728502, JP)
SUDA Junichi (20 Kotobuki-cho, Isesaki-sh, Gunma 02, 〒3728502, JP)
HIJI Yusuke (20 Kotobuki-cho, Isesaki-sh, Gunma 02, 〒3728502, JP)
Application Number:
JP2016/067713
Publication Date:
January 12, 2017
Filing Date:
June 15, 2016
Export Citation:
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Assignee:
SANDEN ENVIRONMENTAL PRODUCTS CORPORATION (20 Kotobuki-cho, Isesaki-shi Gunma, 02, 〒3728502, JP)
International Classes:
F25B5/02; A47F3/04; F25B1/00; F25B7/00; F25D11/00
Foreign References:
US20100199707A12010-08-12
JPH08115464A1996-05-07
JPH10205958A1998-08-04
JP2012093054A2012-05-17
Other References:
See also references of EP 3299746A4
Attorney, Agent or Firm:
AMAGASA Takashi (29-3, Hamacho Ota-sh, Gunma 53, 〒3730853, JP)
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