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1. (WO2018088033) REFRIGERATION CYCLE DEVICE

Pub. No.:    WO/2018/088033    International Application No.:    PCT/JP2017/033618
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Tue Sep 19 01:59:59 CEST 2017
IPC: F25B 1/00
Applicants: DENSO CORPORATION
株式会社デンソー
Inventors: FUKUDA Kotaro
福田 浩太郎
Title: REFRIGERATION CYCLE DEVICE
Abstract:
A refrigeration cycle device is provided with: a gas-liquid separator (14) for separating gas and liquid refrigerant decompressed in a high stage-side decompression unit; low stage-side decompression units (17, 18, 18a) for decompressing the refrigerant in a liquid phase separated by the gas-liquid separator; an evaporator (20) for evaporating refrigerant decompressed in the low stage-side decompression units; a gas-phase refrigerant path (15) through which the refrigerant in a gas phase separated by the gas-liquid separator flows; and a differential pressure valve (16) that opens/closes the gas-phase refrigerant path using the pressure difference between the refrigerant decompressed by the low stage-side decompression units and the refrigerant flowing through the gas-phase refrigerant path. The low stage-side decompression units comprise adjustment mechanisms (18, 18a) for adjusting the decompression amount of the refrigerant. The refrigeration cycle device is also provided with a control device (40) that, when it is determined a compressor is to be stopped, controls the low stage-side decompression units so as to reduce the decompression amount of the refrigerant and subsequently performs compressor stop delay control for stopping the compressor.