Scroll compressor for carbon dioxide refrigerant

Details Scroll compressor for carbon dioxide refrigerant Scroll compressor for carbon dioxide refrigerant

2008-10-24

2010-10-12

Trieu, Theresa (Department: 3748)

Rotary expansible chamber devices

With wear surface treatment or integrally plated wear layer

C418S055100, C418S055300, C418S179000

Reexamination Certificate

active

07811071

ABSTRACT:
A scroll machine is provided with wear resistant features to provide the scroll machine with improved operation when processing CO2refrigerant. 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 CO2scroll machine for at least 1,000 hours of operation.

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