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    • 9. 发明公开
    • SEALING DEVICE
    • 密封装置
    • EP3163131A1
    • 2017-05-03
    • EP15812494.1
    • 2015-06-02
    • NOK Corporation
    • WATANABE KojiSAKUMA Katsuyoshi
    • F16J15/18F16J15/40
    • F16J15/3464F16J15/164F16J15/3208F16J15/3252F16J15/3268F16J15/3496F16J15/441
    • To provide a sealing device, which seals an annular gap between a shaft and a housing that rotate relative to each other to maintain a pressure of a sealed fluid, with excellent sealing properties and mountability. The device includes a first annular member 200 provided with a first cylindrical part 201 that is secured to an outer circumferential surface of the shaft 20, and a first flange 202 extending radially outward from the first cylindrical part 201; a second annular member 300 provided with a second cylindrical part 301 that is secured to an outer circumferential surface of the first cylindrical part 201, and a second flange 302 extending radially outward from the second cylindrical part 301; and an endless resin sealing ring 400 disposed between the first flange 202 and the second flange 302, the sealing ring providing a seal between itself and a shaft hole in the housing 30, and between itself and one of the first flange 202 and the second flange 302 on a low pressure side.
    • 为了提供密封装置,其密封轴和壳体之间的环形间隙,所述环形间隙相对于彼此旋转以保持密封流体的压力,具有优异的密封性能和可安装性。 该装置包括:第一环形构件200,其设置有固定到轴20的外周表面的第一圆柱形部分201和从第一圆柱形部分201径向向外延伸的第一凸缘202; 设置有固定到第一圆柱形部分201的外圆周表面的第二圆柱形部分301和从第二圆柱形部分301径向向外延伸的第二凸缘302的第二环形部件300; 以及设置在第一凸缘202与第二凸缘302之间的环形树脂密封环400,密封环在其自身与壳体30中的轴孔之间以及其与第一凸缘202和第二凸缘中的一个之间提供密封 302在低压侧。