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    • 33. 发明授权
    • Mechanical face seal with minute pores in sliding surface
    • 机械面密封,滑动表面有微小孔
    • US4416458A
    • 1983-11-22
    • US419575
    • 1982-09-17
    • Akira TakenakaKeiichi ShimazakiYasumitsu Kuwazuru
    • Akira TakenakaKeiichi ShimazakiYasumitsu Kuwazuru
    • F16J15/34F16J15/20
    • F16J15/3412
    • A mechanical seal having a fixed member airtightly fixed along the outer circumference thereof in a bearing house formed in the housing of a compressor, a support member mounted on the rotary shaft of the compressor received through the bearing house and supported rotatably in the housing, a rotary member airtightly mounted along the inner circumference thereof on the rotary shaft and a spring disposed between the rotary member and the support member to press the rotary member against the fixed member in the axial direction. The sliding surface of the rotary member to be in sliding contact with the sliding surface of the fixed member has a hardness of Hv 350 and above and minute pores of 30 .mu.m and less in maximum major diameter to retain lubricating oil therein so that the housing of the compressor is sealed to prevent leakage of the gas and the lubricating oil contained within the housing through the bearing house.
    • 一种机械密封件,其具有固定部件,该固定部件形成在压缩机的壳体中的轴承室中沿着其外周气密地固定的固定部件,安装在压缩机的旋转轴上的支撑部件,所述支撑部件通过所述轴承室容纳并可旋转地支撑在所述壳体中, 旋转构件沿其内周面气密地安装在旋转轴上,弹簧设置在旋转构件和支撑构件之间,以沿轴向将旋转构件压靠固定构件。 旋转部件滑动接触固定部件的滑动面的滑动面的硬度为Hv350以上,最大长径为30μm以下的微细孔,保持润滑油,使壳体 压缩机被密封以防止通过轴承室泄漏容纳在壳体内的气体和润滑油。