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公开(公告)号：US08955850B2
公开(公告)日：2015-02-17
申请号：US13743924
申请日：2013-01-17
CPC分类号： F16J15/164 , F16J15/322 , F16J15/3228
摘要： An abeyance seal includes a polymer actuation ring, which defines a flexible sealing lip normally spaced from the shaft. When subjected to leakage, this element collapses against the shaft and forms an initial sealing. Secondarily, a metal sealing/anti-extrusion ring provides a second seal during leakage. The polymer ring provides the initial sealing function during leakage at low differential pressure, and once the polymer ring seals to the shaft, increased sealed pressure loads the polymer ring against the metal sealing/anti-extrusion ring causing it to deform so that the metal ring comes into contact with the shaft to form a second seal.
摘要翻译： 绝缘密封件包括聚合物致动环，其限定通常与轴间隔开的柔性密封唇。 当受到泄漏时，该元件会碰到轴并形成初始密封。 其次，金属密封/抗挤压环在泄漏期间提供第二密封。 聚合物环在低压差下提供泄漏时的初始密封功能，一旦聚合物环密封到轴上，增加的密封压力使聚合物环抵抗金属密封/抗挤压环，使其变形，使得金属环 与轴接触以形成第二密封。
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公开(公告)号：US20140027984A1
公开(公告)日：2014-01-30
申请号：US13743924
申请日：2013-01-17
IPC分类号： F16J15/16
CPC分类号： F16J15/164 , F16J15/322 , F16J15/3228
摘要： An abeyance seal includes a polymer actuation ring, which defines a flexible sealing lip normally spaced from the shaft. When subjected to leakage, this element collapses against the shaft and forms an initial sealing. Secondarily, a metal sealing/anti-extrusion ring provides a second seal during leakage. The polymer ring provides the initial sealing function during leakage at low differential pressure, and once the polymer ring seals to the shaft, increased sealed pressure loads the polymer ring against the metal sealing/anti-extrusion ring causing it to deform so that the metal ring comes into contact with the shaft to form a second seal.
摘要翻译： 绝缘密封件包括聚合物致动环，其限定通常与轴间隔开的柔性密封唇。 当受到泄漏时，该元件会碰到轴并形成初始密封。 其次，金属密封/抗挤压环在泄漏期间提供第二密封。 聚合物环在低压差下提供泄漏时的初始密封功能，一旦聚合物环密封到轴上，增加的密封压力使聚合物环抵抗金属密封/抗挤压环，使其变形，使得金属环 与轴接触以形成第二密封。
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