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1. (WO2017154064) SCROLL COMPRESSOR AND REFRIGERATION CYCLE DEVICE

Pub. No.:    WO/2017/154064    International Application No.:    PCT/JP2016/056933
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Tue Mar 08 00:59:59 CET 2016
IPC: F04C 18/02
Applicants: MITSUBISHI ELECTRIC CORPORATION
三菱電機株式会社
Inventors: ISENO, Makoto
伊勢野 誠
NARUMI, Keisuke
鳴海 圭亮
MYOGAHARA, Masashi
茗ヶ原 将史
Title: SCROLL COMPRESSOR AND REFRIGERATION CYCLE DEVICE
Abstract:
Provided is a scroll compressor wherein, in the relieving of a refrigerant, force acting on a relief valve is equal on both sides of a centerline and therefore the relief valve is not twisted, so that the relief valve is unlikely to break and has improved durability in use. A scroll compressor is provided with an enclosed container, a compression mechanism, an electric drive mechanism, and a rotating shaft. The base plate of a stationary scroll is provided with a relief hole. The relief hole is provided with a plurality of relief ports and a flow combining port. A surface of the base plate of the stationary scroll, the surface facing a discharge pressure space, is provided with a relief valve. The opening of the flow combining port is formed in a shape which is symmetric with respect to the centerline which connects the free end and stationary end of the relief valve.