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1. (WO2018043186) CAPACITY CONTROL VALVE

Pub. No.:    WO/2018/043186    International Application No.:    PCT/JP2017/029833
Publication Date: Fri Mar 09 00:59:59 CET 2018 International Filing Date: Wed Aug 23 01:59:59 CEST 2017
IPC: F04B 27/18
Applicants: EAGLE INDUSTRY CO.,LTD.
イーグル工業株式会社
Inventors: HIGASHIDOZONO Hideki
東堂園 英樹
HAYAMA Masahiro
葉山 真弘
FUKUDOME Kohei
福留 康平
KURIHARA Daichi
栗原 大千
Title: CAPACITY CONTROL VALVE
Abstract:
Provided is a capacity control valve with an improved ability to discharge liquid refrigerant from a control chamber during start-up, wherein both a reduction in the start-up time of a variable displacement compressor and an improvement in operation efficiency during control are achieved. The capacity control valve is characterized in that, in a control area for controlling the flow rate or pressure in an operation control chamber, the open area S2 between a through hole 23 of a third valve portion 21A and a third valve seat surface 12 is set to be smaller than the area S1 of an auxiliary connecting channel 21E.