Refrigerant compressor and refrigerating apparatus
AssigneeHitachi, Ltd.
InventorsKenji Tojo, Hideyuki Ueda, Yoshikatsu Tomita, Takao Mizuno
Life of this patent
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Abstract
The refrigerating apparatus of the invention has a scroll compressor having a compressing section sucking and compressing a hydrofluorocarbon-based refrigerant, a condenser and the like, in which a plain bearing slidably supporting a driving shaft driving the compressing section of the scroll compressor is made of a material containing lead, and an ether oil miscible with the refrigerant used in a refrigerant circuit is used as a lubricant for lubricating the plain bearing.
Claims19
A refrigerant compressor comprising a compressing section sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a plain bearing slidably supporting a driving shaft for driving said compressing section;
- wherein said plain bearing comprises a member containing lead, and an ether oil miscible with said sucked and compressed refrigerant is used as a lubricating oil for said plain bearing.
A refrigerant compressor comprising a compressing section sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a plain bearing slidably supporting a driving shaft for driving said compressing section;
- wherein said compressing section sucking and compressing said refrigerant comprises a scroll type compressor mechanism composed of a pair of spiral scrolling members;
- a sliding engagement section engaging the scrolling members of the scroll type compressor mechanism and the driving shaft thereof comprises a member containing lead;
- and ether oil is used as a lubricant for lubricating said sliding engagement section.
A refrigerant compressor comprising a compressing section sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a plain bearing slidably supporting a driving shaft for driving said compressing section on a stationary member;
- wherein said compressing section sucking and compressing said refrigerant comprises a scroll type compressor mechanism composed of a pair of spiral scrolling members;
- a sliding engagement section engaging the scrolling members of the scroll type compressor mechanism and the plain bearing slidably supporting said driving shaft comprises a member containing lead;
- and ether oil is used as a lubricant for lubricating said sliding engagement section and the plain bearing.
A refrigerant compressor comprising a compressor mechanism sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, a driving shaft for driving said compressor mechanism, and a plain bearing which supports a force generated upon compressing the refrigerant at the compressor mechanism by the rotation of said driving shaft and has a sliding section containing lead;
- wherein an either oil miscible with said refrigerant is used as a lubricant.
A refrigerating apparatus comprising a compressor sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a condenser;
- wherein said compressor has a driving shaft for driving the compressing section, and a plain bearing slidably supporting the driving shaft, and the plain bearing comprises a member containing lead;
- and
- wherein an ether oil miscible with the refrigerant used for a refrigerant circuit is used as a lubricant for lubricating said plain bearing.
A refrigerating apparatus comprising a refrigerant circuit composed of a scroll compressor using a plain bearing for slidably supporting a driving shaft for driving compressing section, a condenser, a expansion device, and an evaporator connected to each other;
- wherein a refrigerant sealed in the refrigerant circuit is at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants;
- said plain bearing of said scroll compressor comprises a member containing lead;
- and an ether oil is used as a lubricant for lubricating said plain bearing.
A refrigerating apparatus comprising a refrigerant circuit formed by piping-connecting a scroll compressor having a scroll type compressor mechanism composed of a pair of spiral scrolling members, a condenser, a expansion device and an evaporator;
- wherein a refrigerant comprising at least one member selected from the group of hydrofluorocarbon-based refrigerants is sealed in said refrigerant circuit;
- wherein said scroll compressor has a sliding engagement section engaging the scrolling member of the compressor mechanism and a driving shaft thereof, and a plain bearing for slidably supporting said driving shaft on a stationary member, said sliding engagement section and said plain bearing comprising members containing lead;
- and
- wherein an ether oil miscible with the refrigerant used in said refrigerant circuit is used as a lubricant for lubricating said sliding engagement section and said plain bearing.
A refrigerant compressor comprising a compressing section sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a bearing slidably supporting a driving shaft for driving said compressing section;
- wherein said bearing comprises a rolling bearing, and an ether oil miscible with said refrigerant to be sucked and compressed is used as a lubricant for lubricating said rolling bearing.
A refrigerant compressor comprising a compressing section sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants, and a bearing slidably supporting a driving shaft for driving said compressing section on a stationary member;
- wherein said compressing section sucking and compressing said refrigerant comprises a scroll type compressor mechanism composed of a pair of spiral scrolling members;
- the bearing slidably supporting said driving shaft for driving the scroll type compressor mechanism comprises a rolling bearing, and an ether oil is used as a lubricant for lubricating said rolling bearing.
A refrigerant compressor comprising a compressor mechanism sucking and compressing a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-type based refrigerants, a driving shaft for driving said compressor mechanism and a rolling bearing supporting the driving shaft, wherein an ether oil miscible with said refrigerant is used as a lubricant.
A refrigerating apparatus comprising a compressor sucking and compressing a refrigerant comprising at least one member selected from the group consisting of a hydrofluorocarbon-based refrigerants, and a condenser;
- wherein said compressor has a driving shaft for driving the compressor section, and a bearing slidably supporting the driving shaft;
- the bearing comprises a rolling bearing;
- and an ether oil miscible with the refrigerant used for refrigerant circuit is used as a lubricant for lubricating said rolling bearing.
A refrigerating apparatus comprising a refrigerant circuit composed of a scroll compressor using a bearing for slidably supporting a driving shaft for driving a compressing section, a condenser, a expansion device, and an evaporator connected to each other;
- wherein a refrigerant sealed in the refrigerant circuit is at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants;
- said bearing of said scroll compressor comprises a rolling bearing;
- and an ether oil is used as a lubricant for lubricating said rolling bearing.
A refrigerating apparatus comprising a refrigerant circuit formed by piping-connecting a scroll compressor having a scroll type compressor mechanism composed of a pair of spiral scrolling members, a condenser, a expansion device and an evaporator;
- wherein a refrigerant comprising at least one member selected from the group consisting of hydrofluorocarbon-based refrigerants is sealed in said refrigerant circuit;
- said scroll compressor has a sliding engagement section engaging the scrolling member of the compressor mechanism and a driving shaft thereof, and a bearing for slidably supporting said driving shaft on a stationary member, said bearing comprising a rolling bearing;
- and an ether oil miscible with the refrigerant used in said refrigerant circuit is used as a lubricant for lubricating said rolling bearing.
Dependencies are inferred from the claim text.