Patent ID: 8672646
Filing Date: 2014-03-18
Classification: C09K,F04C,F05C

Abstract:
1. A scroll compressor, in which there are provided a refrigerant, an electric motor portion, a compression mechanism portion compressing the refrigerant, the compression mechanism portion including a sliding portion and being connected to said electric motor portion, and an oil sump for lubricating oil in a sealed container, wherein said refrigerant is a mixture of “HFO-1234yf” and “R32” or is a mixture of “HFO-1234yf” and “R41”, a sliding surface of at least one of two components constituting a sliding portion having a relation of sliding to each other in said sealed container is structured in such a way that an iron metal or an aluminum metal is not directly exposed to the refrigerant, and the sliding surface of at least one of two components that constitute said sliding portion is subjected to coating treatment or coating film formation treatment with material that does not include iron and aluminum, and that suppresses decomposition or polymerization of said refrigerant, so that an iron metal or an aluminum metal is not directly exposed to the refrigerant.