There is provided a rotary compressor capable of preventing deterioration of performance following plug fixing carried out to prevent falling-off of a spring member. The rotary compressor comprises a cylinder constituting a rotary compression element, a roller engaged with an eccentric portion forme
There is provided a rotary compressor capable of preventing deterioration of performance following plug fixing carried out to prevent falling-off of a spring member. The rotary compressor comprises a cylinder constituting a rotary compression element, a roller engaged with an eccentric portion formed in a rotary shaft of an electric element, and eccentrically rotated in the cylinder, a vane abutted on the roller to divide an inside of the cylinder into a low pressure chamber side and a high pressure chamber side, a spring member for always pressing the vane to the roller side, a housing portion of the spring member, formed in the cylinder, and opened to the vane side and a hermetically sealed container side, a plug positioned in the hermetically sealed container side of the spring member, and inserted into the housing portion to fit into a gap, and an O ring attached around the plug to seal a part between the plug and the housing portion. In this case, a space between the cylinder and the hermetically sealed container is set smaller than a distance from the O ring to an end of the plug on the hermetically sealed container side.
대표청구항▼
What is claimed is: 1. A hermetically sealed compressor comprising: an electric element, and a compression element driven by the electric element, both components being provided in a hermetically sealed container, a CO2 refrigerant sucked from a refrigerant introduction tube into the hermetically s
What is claimed is: 1. A hermetically sealed compressor comprising: an electric element, and a compression element driven by the electric element, both components being provided in a hermetically sealed container, a CO2 refrigerant sucked from a refrigerant introduction tube into the hermetically sealed container being compressed by the compression element when connected to a refrigerant discharge tube, and then discharged outside from the refrigerant discharge tube; at least one sleeve provided in the hermetically sealed container, to which the refrigerant introduction tube and/or the refrigerant discharge tube are connectable; a flange formed round an outer surface of the sleeve to engage a coupler for tube connection; and an airtightness-test pipe, connected to the sleeve and conveying compressed air for an airtightness test of the sealed compressor; wherein the compressed air is of about 10 MPa. 2. The hermetically sealed compressor according to claim 1, wherein the sleeve comprises an internal bore and wherein the refrigerant introduction tube and/or the refrigerant discharge tube is insertable into the bore end hermetically connectable to the sleeve. 3. A hermetically sealed compressor comprising: an electric element, and a compression element driven by the electric element, both components being provided in a hermetically sealed container, a CO2 refrigerant sucked from a refrigerant introduction tube into the hermetically sealed container being compressed by the compression element when connected to a refrigerant discharge tube, and then discharged outside from the refrigerant discharge tube; at least one sleeve provided in the hermetically sealed container, to which the refrigerant introduction tube and/or the refrigerant discharge tube are connectable; a screw groove formed for pipe connection around an outer surface of the sleeve; and an airtightness-test pipe, connected to the sleeve and conveying compressed air for an airtightness test of the sealed compressor; wherein the compressed air is of about 10 MPa. 4. The hermetically sealed compressor according to claim 3, wherein the sleeve comprises an internal bore and wherein the refrigerant introduction tube and/or the refrigerant discharge tube is insertable into the bore and hermetically connectable to the sleeve. 5. A hermetically sealed compressor comprising: an electric element, and a compression element driven by the electric element, both components being provided in a hermetically sealed container, a CO2 refrigerant sucked from a refrigerant introduction tube into the hermetically sealed container being compressed by the compression element when connected to a refrigerant discharge tube, and then discharged outside from the refrigerant discharge tube; a plurality of sleeves provided in the hermetically sealed container, to which the refrigerant introduction tube and the refrigerant discharge tube are connectable; a flange formed around an outer surface of one of adjacent sleeves to engage a coupler for tube connection; a screw groove formed for pipe connection around an outer surface of the other sleeve; and at least one airtightness-test pipe, connected to at least one of the sleeves and conveying compressed air for an airtightness test of the sealed compressor; wherein the compressed air is of about 10 MPa. 6. The hermetically sealed compressor according to claim 5, wherein the sleeves comprise internal bores and wherein the refrigerant introduction tube and the refrigerant discharge tube are insertable into the bores and hermetically connectable to a respective sleeve.
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이 특허에 인용된 특허 (4)
Sakae Shunichi (Shiga JPX), Compressor, and method of manufacturing same including a press-fit inlet tube.
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