ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,346, issued on Sept. 8, was assigned to DAIKIN INDUSTRIES Ltd. (Osaka, Japan).
"Compressor and refrigeration cycle apparatus" was invented by Arisa Kira (Osaka, Japan), Masaru Tanaka (Osaka, Japan) and Hideki Matsuura (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A compressor is a compressor for a refrigeration cycle apparatus that performs a refrigeration cycle using a refrigerant containing a hydrofluoroolefin and a refrigeration oil containing a polyol ester or a polyvinyl ether. The compressor includes a sliding portion. The sliding portion is formed of an aluminum alloy containing from 5 wt % to 25 wt % of silicon. The refrigerat...