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1. (WO2018163422) REFRIGERATION CYCLE DEVICE

Pub. No.:    WO/2018/163422    International Application No.:    PCT/JP2017/009793
Publication Date: Fri Sep 14 01:59:59 CEST 2018 International Filing Date: Sat Mar 11 00:59:59 CET 2017
IPC: F25B 47/02
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: YANACHI, Satoru
梁池 悟
MINAMISAKO, Hirokazu
南迫 博和
Title: REFRIGERATION CYCLE DEVICE
Abstract:
This refrigeration cycle device (1) is provided with an opening/closing valve (16) and a control device (17). The opening/closing valve (16) is connected in parallel to a compressor (11) between a discharge port and an intake port of the compressor (11). The control device (17) controls the opening/closing of the opening/closing valve (16) and switches operation modes. The operation modes include a heating mode, a defrosting mode, and a pressure equalizing mode. In the pressure equalizing mode, the opening/closing valve (16) is open. In the pressure equalizing mode, the flow passage resistance of the open opening/closing valve (16) is greater than that of a four-way valve (15). The control device (17) switches the operation mode in the order of the heating mode, the pressure equalizing mode, and the defrosting mode.