Title:
REFRIGERATION CYCLE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/069441
Kind Code:
A1
Abstract:
The present invention provides a refrigeration cycle device that is provided with a scroll compressor capable of opening and closing an injection check valve while requiring no spring. A refrigeration cycle device (1) is provided with: a scroll compressor (2); an injection circuit (B); and a bypass circuit (C) that causes the injection circuit to communicate with a low-pressure side. By opening and closing electromagnetic valves (7, 8) that are provided in the injection circuit and in the bypass circuit, respectively, an injection check valve(40) is opened and closed only by the differential pressure between an internal pressure of the injection circuit and an internal pressure of a compression chamber (16) of the scroll compressor.
Inventors:
MORISHITA TAKUMI (JP)
KOYAMA SHUHEI (JP)
KOYAMA SHUHEI (JP)
Application Number:
PCT/JP2017/036417
Publication Date:
April 11, 2019
Filing Date:
October 06, 2017
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP (JP)
International Classes:
F25B1/04; F04C18/02; F04C29/04; F25B1/00
Domestic Patent References:
| WO2011013199A1 | 2011-02-03 | |||
| WO2017130401A1 | 2017-08-03 | |||
| WO2005045330A2 | 2005-05-19 |
Foreign References:
| JPS57160988U | 1982-10-08 | |||
| JP2015014195A | 2015-01-22 | |||
| JP2005521854A | 2005-07-21 | |||
| JP2008267707A | 2008-11-06 | |||
| JP2012137207A | 2012-07-19 | |||
| JP2012184750A | 2012-09-27 |
Attorney, Agent or Firm:
KISA PATENT & TRADEMARK FIRM (JP)
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