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1. (WO2015045433) ROTARY COMPRESSOR

Pub. No.:    WO/2015/045433    International Application No.:    PCT/JP2014/051981
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Thu Jan 30 00:59:59 CET 2014
IPC: F04C 18/356
Applicants: FUJITSU GENERAL LIMITED
株式会社富士通ゼネラル
Inventors: TANAKA, Junya
田中 順也
KOMINE, Kenji
小峰 健治
Title: ROTARY COMPRESSOR
Abstract:
A rotary compressor equipped with a compression unit having: a ring-shaped cylinder; an end plate for closing the end section of the cylinder, and having a shaft-receiving part and a discharge-valve part; a ring-shaped piston for engaging the eccentric part of a rotating shaft supported by the shaft-receiving part, revolving inside the cylinder along the inner wall thereof, and forming a working chamber between itself and the inner wall of the cylinder; and a vane for projecting into the working chamber from within a vane groove of the cylinder, contacting the ring-shaped piston, and dividing the working chamber into an intake chamber and a compression chamber. Therein, the vane is formed from a steel material and has a diamond-shaped carbon layer on the surface which slides with the ring-shaped piston, and the ring-shaped piston is formed from Ni-Cr-Mo iron to which 0.15-0.45 wt% of phosphorus has been added, or is formed from iron or steel and has an iron nitride layer formed on the outer-circumferential surface thereof.