US 2014/0154116 A1 · SCROLL COMPRESSOR

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

Dependent claims

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 at least “HFO-1234yf”, 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.

the refrigerant includes at least “HFO-1234yf”, 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.

Facts

Application

14/171,834Filed 4 Feb 2014

Priority

JP 2008-15674316 Jun 2008

Published

5 Jun 2014

Term ends

Not estimatedThe source records don’t support an estimate.

Classification12 codes

F04C 23/02
Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping…: pumps…
F04C 18/0207
Of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or…: both…
C09K 5/042
For compression-type refrigeration systems: comprising compounds containing carbon and hydrogen only
C09K 5/045
Comprising halogenated compounds: containing only fluorine as halogen

Scroll compressor

Life of this patent

Scroll compressor

Life of this patent

Abstract

Claims16