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1. 发明申请

US20090087307A1 REDUCED PRESSURE LOAD FINGER SEAL ASSEMBLY 审中-公开
标题翻译：减压压力指示器密封组件
公开(公告)号：US20090087307A1
公开(公告)日：2009-04-02
申请号：US11864294
申请日：2007-09-28
申请人： Donald I. Takeuchi , Bradley R. Tucker , Yates Y. Wong , Mingfong F. Hwang
发明人： Donald I. Takeuchi , Bradley R. Tucker , Yates Y. Wong , Mingfong F. Hwang
IPC分类号： F04D29/12
CPC分类号： F16J15/3288 , F01D11/003 , F01D11/04
摘要： A sealing assembly for achieving a fluid seal between a rotatable shaft and a housing circumscribing the rotatable shaft to inhibit fluid leakage therebetween a high pressure fluid region and a relatively lower pressure fluid region. The sealing assembly includes at least one primary seal, comprising an axial stack of a plurality of diaphragm members, including an upstream diaphragm and a downstream diaphragm. A plurality of finger seal plates are positioned between the upstream diaphragm and the downstream diaphragm. The plurality of diaphragm members define a passageway in fluid communication with the high pressure fluid region and a low pressure fluid region. The sealing assembly includes at least one secondary seal positioned within the passageway and configured to convert fluid from a high pressure axial pressure balance to a low pressure axial pressure balance thereby reducing a radially inward pressure load.
摘要翻译：一种密封组件，用于在旋转轴和外壳之间实现流体密封，所述壳体围绕所述可旋转轴以抑制高压流体区域和相对较低压力的流体区域之间的流体泄漏。密封组件包括至少一个初级密封件，其包括多个隔膜部件的轴向堆叠，包括上游隔膜和下游隔膜。多个手指密封板位于上游膜片和下游膜片之间。多个隔膜部件限定与高压流体区域和低压流体区域流体连通的通道。密封组件包括定位在通道内的至少一个次级密封件，其构造成将流体从高压轴向压力平衡转换成低压轴向压力平衡，从而减小径向向内的压力负载。

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