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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。

2. 发明申请

US20080003099A1 Closed bias air film riding seal in event of housing breach for shared engine lubrication accessory gearboxes 审中-公开
标题翻译：共享发动机润滑附件齿轮箱的外壳泄漏事件时，闭合偏压气膜骑行密封
公开(公告)号：US20080003099A1
公开(公告)日：2008-01-03
申请号：US11479791
申请日：2006-06-30
申请人： William L. Giesler , Mingfong F. Hwang , Ronald J. Pardini
发明人： William L. Giesler , Mingfong F. Hwang , Ronald J. Pardini
IPC分类号： F04D29/08
CPC分类号： F01D25/22 , F02C7/32 , F05D2300/226 , F16J15/348
摘要： A system includes a case, a stator, a ring seal, and a rotor and is configured to pump air out of a housing. The case is mounted on the housing. The stator is mounted within the case and has two sides, an inner diameter and an outer diameter, where the first side faces the case. The ring seal is disposed between the stator first side and the case. The rotor is mounted on a shaft and has a side facing the stator first side. The rotor side has grooves, an inner and outer peripheral surfaces, and is configured to pump air from the outer peripheral surface to the inner peripheral surface to thereby pump air out of the housing. The stator inner diameter is configured and the ring seal is positioned such that separation forces are substantially equal to or less than closing forces during a system breach.
摘要翻译：系统包括壳体，定子，环形密封件和转子，并且构造成将空气泵出壳体。外壳安装在外壳上。定子安装在壳体内，并且具有内侧直径和外径两侧，其中第一面朝向壳体。环形密封件设置在定子第一侧和壳体之间。转子安装在轴上并具有面向定子第一侧的一侧。转子侧具有内周面和外周面的槽，并且构造成将空气从外周面向内周面泵送，从而将空气泵出壳体。定子内径被构造并且环形密封件被定位成使得在系统破裂期间分离力基本上等于或小于闭合力。

3. 发明授权

US07435052B2 Shaft oil purge system 有权
标题翻译：轴油清洗系统
公开(公告)号：US07435052B2
公开(公告)日：2008-10-14
申请号：US11134177
申请日：2005-05-20
申请人： Doug K. Spencer , Mohsiul Alam , Mingfong F. Hwang
发明人： Doug K. Spencer , Mohsiul Alam , Mingfong F. Hwang
IPC分类号： F01D25/16
CPC分类号： F01D25/183 , F01D11/02 , F02C7/28
摘要： A shaft oil purge system comprises an entrance seal, an exit seal and a buffer air flow. The entrance seal comprises a circumferential carbon seal running on an inner shaft and another carbon seal running on an outer shaft. The exit seal comprises a labyrinth seal positioned on the inner shaft and towards the exit end of the annulus between the shafts. An abradable material filled groove positioned radially outward from the exit seal allows the inner shaft to rub without compromising the integrity of the outer shaft. The buffer air flow enters the annulus from a cavity at the entrance seal, purges oil from the annulus and improves the efficiency of the seals.
摘要翻译：轴油清洗系统包括入口密封件，出口密封件和缓冲空气流。入口密封件包括在内轴上延伸的圆周碳密封件和在外轴上运行的另一碳密封件。出口密封件包括位于内轴上并且朝向轴之间的环空的出口端的迷宫式密封件。从出口密封件径向向外定位的可磨损材料填充槽允许内轴摩擦而不损害外轴的完整性。缓冲空气流从入口密封件的空腔进入环形空间，从环形空气中清除油脂并提高密封件的效率。

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