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1. (WO2018186044) REFRIGERATION CYCLE DEVICE AND ROTARY COMPRESSOR

Pub. No.:    WO/2018/186044    International Application No.:    PCT/JP2018/006506
Publication Date: Fri Oct 12 01:59:59 CEST 2018 International Filing Date: Fri Feb 23 00:59:59 CET 2018
IPC: F25B 1/04
F04C 29/04
F04C 29/12
F25B 1/00
F25B 13/00
Applicants: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
パナソニックIPマネジメント株式会社
Inventors: IITAKA Seishi
飯高 誠之
Title: REFRIGERATION CYCLE DEVICE AND ROTARY COMPRESSOR
Abstract:
To prevent a refrigerant in a compression chamber from flowing back through an injection flow path to a refrigeration cycle. The present invention is provided with injection piping 116 for supplying an injection refrigerant to a rotary compressor 11, one end of the injection piping 116 being connected to part of a refrigeration cycle device 100 other than the rotary compressor 111, and the other end of the injection piping 116 being connected to the rotary compressor 111. The rotary compressor 111 is provided with an injection flow path 128 of which one end communicates with the injection piping 116 and the other end of which communicates with a compression chamber 129. Either the injection piping 116 or the injection flow path 128 is provided with a valve 117 for adjusting the flow of the refrigerant.