SCROLL COMPRESSOR FOR CARBON DIOXIDE REFRIGERANT

摘要

A scroll machine is provided with wear resistant features to provide the scroll machine with improved operation when processing CO2 refrigerant. In certain aspects, the scroll machine has an Oldham coupling comprising aluminum, where the aluminum has an anodized surface forming a passivation layer thereon. The scroll machine optionally further has a self-lubricating bearing capable of use in the CO2 scroll machine for at least 1,000 hours of operation.