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公开(公告)号：US08540479B2
公开(公告)日：2013-09-24
申请号：US11652076
申请日：2007-01-11
IPC分类号： F04D29/10
CPC分类号： F01D11/025 , F01D11/122 , F01D11/127 , F01D11/22 , F05D2240/56 , F05D2240/57 , Y02T50/671
摘要： An active retractable seal assembly for use between rotating and non-rotating turbo machinery components including: a plurality of seal rings mounted to the non-rotating component, the seal rings movable toward and away from the rotating component between respective closed and open positions as a function of pressure drop across the seal rings, wherein the seal rings are normally in the open position; and a fluid bypass circuit for directing fluid around one or more of the plurality of seal rings to reduce the pressure drop across the one or more of the seal rings, thereby causing the one or more seal rings to move towards the open position under the action of spring(s) or actuator(s).
摘要翻译： 一种在旋转和非旋转涡轮机械部件之间使用的主动的可缩回密封组件，包括：安装到非旋转部件的多个密封环，所述密封环可在相应的闭合位置和打开位置之间朝向和远离旋转部件移动， 其中密封环通常处于打开位置; 以及流体旁路回路，用于将流体引导到所述多个密封环中的一个或多个处，以减少跨过所述一个或多个所述密封环的压降，从而使所述一个或多个密封环在所述动作 的弹簧或致动器。
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公开(公告)号：US20080169616A1
公开(公告)日：2008-07-17
申请号：US11652076
申请日：2007-01-11
IPC分类号： F02F11/00
CPC分类号： F01D11/025 , F01D11/122 , F01D11/127 , F01D11/22 , F05D2240/56 , F05D2240/57 , Y02T50/671
摘要： An active retractable seal assembly for use between rotating and non-rotating turbo machinery components including: a plurality of seal rings mounted to the non-rotating component, the seal rings movable toward and away from the rotating component between respective closed and open positions as a function of pressure drop across the seal rings, wherein the seal rings are normally in the open position; and a fluid bypass circuit for directing fluid around one or more of the plurality of seal rings to reduce the pressure drop across the one or more of the seal rings, thereby causing the one or more seal rings to move towards the open position under the action of spring(s) or actuator(s).
摘要翻译： 一种在旋转和非旋转涡轮机械部件之间使用的主动的可缩回密封组件，包括：安装到非旋转部件的多个密封环，所述密封环可在相应的闭合位置和打开位置之间朝向和远离旋转部件移动， 其中密封环通常处于打开位置; 以及流体旁路回路，用于将流体引导到所述多个密封环中的一个或多个处，以减少跨过所述一个或多个所述密封环的压降，从而使所述一个或多个密封环在所述动作 的弹簧或致动器。
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公开(公告)号：US07484927B2
公开(公告)日：2009-02-03
申请号：US11404956
申请日：2006-04-14
申请人： Richard J. Chevrette , Flor Rivas , Frederick G. Baily , William E. Adis , Mark E. Kelly , Bernard A. Couture , Kurt N. Laurer
发明人： Richard J. Chevrette , Flor Rivas , Frederick G. Baily , William E. Adis , Mark E. Kelly , Bernard A. Couture , Kurt N. Laurer
IPC分类号： F04D29/10
CPC分类号： F01D11/003 , F05D2220/31 , F16J15/442 , F16J15/445
摘要： Disclosed herein is a packing ring assembly including a packing ring segment, a bar, a cover plate, and a spring. The packing ring segment has an axial slot. The bar is disposed within the slot. The cover plate is disposed along an outer periphery of the packing ring segment. And, the spring is compressed between the bar and the cover plate.
摘要翻译： 本文公开了一种包装环组件，其包括填料环段，棒，盖板和弹簧。 填料环段具有轴向槽。 该栏设置在槽内。 盖板沿着包装环段的外周设置。 并且，弹簧在杆和盖板之间被压缩。
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公开(公告)号：US6024689A
公开(公告)日：2000-02-15
申请号：US617257
申请日：1996-03-18
申请人： Steven K.B. Castle , Kurt N. Laurer
发明人： Steven K.B. Castle , Kurt N. Laurer
CPC分类号： A61N5/1042
摘要： A three dimensional radiation therapy treatment device, has a heel on three sides forming a half crater shape, for the purpose of shaping a beam of radiation more accurately to a persons head. The wedge is constructed of a radiation attenuating material with the dimensions determined by the treatment machine utilized.
摘要翻译： 一种三维放射治疗装置，在三面上具有形成半圆弧形状的脚后跟，用于将射线束更精确地成形为人头部。 楔形物由具有由所使用的处理机确定的尺寸的辐射衰减材料构成。
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