Scroll compressor
AssigneeMitsubishi Electric Corporation
InventorsFumihiko Ishizono, Hideaki Maeyama, Takeshi Fushiki, Taro Kato
Life of this patent
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Abstract
A scroll compressor has an electric motor portion, a compression mechanism portion connected to the electric motor portion, and an oil sump for lubricating oil in a sealed container and compresses a refrigerant in the compression mechanism portion. A used refrigerant is a halogenated hydrocarbon or a hydrocarbon having a carbon double bond in the composition or is a mixture containing one of the same. A sliding surface of at least one of two components constituting a sliding portion having a relation of sliding to each other in a sealed container is structured in such a way that an iron metal or an aluminum metal is not directly exposed.
Claims16
A scroll compressor, in which there are provided an electric motor portion, a compression mechanism portion connected to the electric motor portion, and an oil sump for lubricating oil in a sealed container, and in which the compression mechanism portion compresses a refrigerant, wherein
- the refrigerant includes one of:
- a mixture containing halogenated hydrocarbon having a carbon double bond and R32, and a mixture containing halogenated hydrocarbon having a carbon double bond and R41, and
- a sliding surface of at least one of two components constituting a sliding portion having a relation of sliding to each other in the sealed container is structured in such a way as to be subjected to coating treatment or coating film formation treatment with material that does not include iron and aluminum, and that suppress decomposition or polymerization of the refrigerant, so that an iron metal or an aluminum metal is not directly exposed to the refrigerant.
A scroll compressor, in which there are provided an electric motor portion, a compression mechanism portion connected to the electric motor portion, and an oil sump for lubricating oil in a sealed container, and in which the compression mechanism portion compresses a refrigerant, wherein
- the refrigerant includes one of:
- a mixture containing halogenated hydrocarbon having a carbon double bond and R32, and a mixture containing halogenated hydrocarbon having a carbon double bond and R41, and
- a sliding surface of at least one of two components constituting a sliding portion having a relation of sliding to each other in the sealed container is structured in such a way that the sliding surface of at least one of two components that constitute the sliding portion is formed with a ceramic material or resin, so that an iron metal or an aluminum metal is not directly exposed to the refrigerant.
Dependencies are inferred from the claim text.