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21.发明授权
公开(公告)号：US6131910A
公开(公告)日：2000-10-17
申请号：US855013
申请日：1997-05-13
申请人： Bharat S. Bagepalli , R. Paul Chiu , Robert Harold Cromer , Gregory Allan Crum , Osman Saim Dinc , Anthony Holmes Furman , Paul Thomas Marks , Rudolf Matthias Markytan , David Robert Skinner , Norman Arnold Turnquist , Christopher Edward Wolfe
发明人： Bharat S. Bagepalli , R. Paul Chiu , Robert Harold Cromer , Gregory Allan Crum , Osman Saim Dinc , Anthony Holmes Furman , Paul Thomas Marks , Rudolf Matthias Markytan , David Robert Skinner , Norman Arnold Turnquist , Christopher Edward Wolfe
CPC分类号： F16J15/442 , F01D11/001 , F01D11/02 , F01D11/08 , F01D11/12 , F01D11/127 , F01D5/225 , F01D5/3046 , F16J15/3288 , F16J15/4472 , F05D2240/56 , F05D2250/182 , F05D2300/6012
摘要： Brush seals are retrofitted into existing turbine labyrinth seal rings to create a fail-safe seal design at locations wherever labyrinth seals are currently used, including interstage shaft seals, rotor end seals, bucket (or blade) tip seals and spill strips. Brush seals, per se, when used in place of labyrinth seals, can result in considerable span reductions of steam turbines, or machines with more turbine stages for a given span. Application to end packings results in the potential elimination of gland sealing/exhauster systems. Brush seal life can be improved by retrofitting brush segments to labyrinth seal segments that are either spring-backed, or use pressure loads to obtain design clearances only after steady state operating conditions are achieved. The brush seals are provided with backing plates shaped like labyrinth teeth, resulting in a fail-safe design. Also, the use of existing labyrinth teeth as bristle backing plates results in a brush seal with diminished susceptibility to hysteresis when compared to conventional brush seal designs. Low friction coatings can also be used to reduce brush seal hysteresis. Incorporation of brush seals in labyrinth seal rings that are either spring-backed or held in place by pressure forces results in extremely low brush seal wear.
摘要翻译： 电刷密封件改装成现有的涡轮迷宫式密封环，以在目前使用迷宫式密封件的位置创建故障安全密封设计，包括级间轴密封件，转子端部密封件，铲斗（或刀片）末端密封件和溢出条。 刷子密封件本身在用于代替迷宫式密封件时，可以导致蒸汽轮机或具有更多涡轮级的机器在给定跨度上的相当大的跨度减少。 对端部密封的应用导致密封/排气系统的潜在消除。 刷子密封寿命可以通过将刷段改装为弹簧密封段，或者使用压力负载仅在达到稳态工作条件之后才能获得设计间隙。 刷子密封件设置有类似迷宫齿的背板，从而形成故障安全设计。 此外，与传统的刷密封设计相比，使用现有的迷宫齿作为刷毛背板导致刷密封，对滞后的敏感性降低。 低摩擦涂层也可用于减少刷子密封滞后。 将刷子密封件装入迷宫式密封环中，弹簧支撑或通过压力力保持在适当位置导致极低的刷密封磨损。
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公开(公告)号：US6010132A
公开(公告)日：2000-01-04
申请号：US438228
申请日：1995-05-09
CPC分类号： F16J15/4472 , F01D11/001 , F01D11/005 , F01D11/02 , F01D11/025 , F01D11/08 , F01D11/12 , F01D9/023 , F16J15/3288 , F05D2240/56 , F05D2300/6012
摘要： A hybrid labyrinth-brush seal is provided in a flow path between relatively moving parts such as a shaft and a fixed housing. The labyrinth seal includes a plurality of teeth extending radially from one part toward the other providing a labyrinth seal. The brush seal includes generally radially extending bristles in the form of a bristle pack extending generally radially between the teeth of the labyrinth seal toward the rotating part such that the distal ends thereof engage the rotating part.
摘要翻译： 在诸如轴和固定壳体的相对运动部件之间的流动路径中设置混合迷宫式刷子密封件。 迷宫式密封件包括从一个部分向另一个部分径向延伸的多个齿，其提供迷宫式密封。 刷子密封件包括大致径向延伸的刷毛形式的刷毛组件，其大致径向地延伸在迷宫式密封件的齿之间朝向旋转部件，使得其远端接合旋转部件。
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公开(公告)号：US5749584A
公开(公告)日：1998-05-12
申请号：US719667
申请日：1996-09-25
申请人： David Robert Skinner , Bharat S. Bagepalli , Robert Harold Cromer , Osman Saim Dine , Norman Arnold Turnquist , Christopher Edward Wolfe
发明人： David Robert Skinner , Bharat S. Bagepalli , Robert Harold Cromer , Osman Saim Dine , Norman Arnold Turnquist , Christopher Edward Wolfe
IPC分类号： F01D9/02 , F01D11/00 , F01D11/02 , F01D11/08 , F01D11/12 , F16J15/32 , F16J15/44 , F16J15/447
CPC分类号： F01D11/001 , F01D11/005 , F01D11/02 , F01D11/025 , F01D11/08 , F01D11/12 , F01D9/023 , F16J15/3288 , F16J15/442 , F16J15/4472 , F05D2230/80 , F05D2240/56 , F05D2300/6012
摘要： A brush seal is comprised of arcuate seal segments having ends cut in a radial direction with bristles "canted" at an approximate 45.degree. angle relative to radii of the segments, leaving triangular regions adjacent one end of each segment devoid of bristles at the segment interfaces. The brush seals are retrofit into conventional labyrinth seals with the backing plate for the bristles comprising a labyrinth tooth profile extending fully 360.degree. about the seal, including those areas where bristles are not present. The sealing capacity is not substantially degraded, while affording significant sealing improvements over conventional labyrinth seals. Additionally, when retrofit into labyrinth seals with radial movement, the individual labyrinth seal segments are free to move radially independently of one another during transients.
摘要翻译： 刷密封件包括弧形密封段，其具有在径向方向上切割的端部，其中刷毛“倾斜”相对于段的半径为大约45°角，在段接口处留下与缺少刷毛的每个段的一端相邻的三角形区域 。 毛刷密封件被改造成传统的迷宫式密封件，其中刷子的背板包括一个迷宫齿形轮廓，围绕密封件全面360度延伸，包括不存在刷毛的区域。 密封能力基本上不降低，同时比传统的迷宫式密封件提供显着的密封改进。 另外，当以径向运动方式改装成迷宫式密封件时，各个迷宫式密封段在瞬变过程中可以彼此自由地径向移动。
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公开(公告)号：US5586773A
公开(公告)日：1996-12-24
申请号：US491758
申请日：1995-06-19
申请人： Bharat S. Bagepalli , Osman S. Dinc
发明人： Bharat S. Bagepalli , Osman S. Dinc
CPC分类号： F16J15/122 , F01D11/005
摘要： A gas-path leakage seal for generally sealing a gas-path leakage-gap between spaced-apart first and second members of a gas turbine (such as combustor casing segments). The seal includes a cloth-layer assemblage positioned in the leakage-gap. The cloth-layer assemblage includes a metallic, woven cloth layer having a first group of generally equal-diameter warp wires and a second group of generally equal-diameter weft wires. Adjacent wires of one of the first and second groups of wires are spaced apart by a center-to-center distance equal to generally between four and ten times the diameter of the wires of the other of the first and second groups of wires.
摘要翻译： 一种用于大致密封燃气轮机间隔开的第一和第二构件之间的气体路径泄漏间隙的气体通道泄漏密封件（例如燃烧器壳体段）。 密封件包括布置在泄漏间隙中的布层组合件。 布层组合包括具有第一组大致等直径的经线的金属编织布层和第二组大致相等直径的纬线。 第一组和第二组电线之一的相邻导线间隔开等于通常为第一组和第二组导线的另一组的导线直径的四到十倍的中心到中心距离。
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公开(公告)号：US5265412A
公开(公告)日：1993-11-30
申请号：US920879
申请日：1992-07-28
申请人： Bharat S. Bagepalli , Osman S. Dinc , John Barnes
发明人： Bharat S. Bagepalli , Osman S. Dinc , John Barnes
CPC分类号： F01D11/005 , F01D9/023 , F02K1/805 , F16J15/3288 , F23R3/60 , F05D2230/642
摘要： The gas turbine includes a combustor 10 having a transition piece 18 with its exit end spaced from a first-stage nozzle 22. A brush seal 26 seals about the space between the transition piece and first-stage nozzle. The brush seal includes a sealing cap 28 supported by one of the transition piece and the first-stage nozzle and having a portion 38 overlying the other of the transition piece and first-stage nozzle. A seal ring 30 is secured to the other of the transition piece and the first-stage nozzle and carries bristles 32 projecting therefrom for engagement with the overlying portion 38 of the sealing cap 28 to seal the gap between the transition piece and the first-stage nozzle.
摘要翻译： 燃气轮机包括具有过渡件18的燃烧器10，其过渡件的出口端与第一级喷嘴22间隔开。刷密封件26围绕过渡件和第一级喷嘴之间的空间密封。 刷子密封件包括由过渡件和第一级喷嘴中的一个支撑的密封帽28，并且具有覆盖过渡件和第一级喷嘴中的另一个的部分38。 密封圈30固定到过渡件和第一级喷嘴中的另一个，并且承载从其突出的刷毛32，以与密封帽28的上覆部分38接合，以密封过渡件和第一级之间的间隙 喷嘴。
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公开(公告)号：US4656445A
公开(公告)日：1987-04-07
申请号：US876132
申请日：1986-06-19
CPC分类号： H01H3/222
摘要： A high speed contact driver for use in an electrical circuit interrupter includes a pair of series-connected, elongate and generally opposing electrical conductors bowed in predetermined, generally opposing contours. These conductors are connected to a bridging electrical contact which is normally biased into a bridging position between a pair of stationary contacts. Pulse generating means are provided for applying a current pulse of predetermined magnitude to the electrical conductors. In response to this current pulse, these electrical conductors electromagnetically repulse each other and drive the bridging contact out of bridging position between the stationary contacts.
摘要翻译： 用于电路断路器的高速接触驱动器包括一对串联连接的，细长的和大致相对的电导体，其在预定的大致相对的轮廓上弯曲。 这些导体连接到通常被偏置在一对固定触点之间的桥接位置的桥接电触头。 提供了脉冲发生装置，用于向电导体施加预定幅度的电流脉冲。 响应于该电流脉冲，这些电导体电磁地相互斥力并驱动桥接接触离开固定触点之间的桥接位置。
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公开(公告)号：US08082719B2
公开(公告)日：2011-12-27
申请号：US13042425
申请日：2011-03-07
申请人： Bharat S. Bagepalli
发明人： Bharat S. Bagepalli
IPC分类号： E04C3/00
CPC分类号： E04H12/085 , F03D13/10 , F03D13/20 , Y02E10/728
摘要： A wind turbine tower, includes a first substantially tubular wall section having a tapered edge; a second substantially tubular wall section, arranged substantially coplanar with the first wall section, having a flared edge for seating against the tapered edge of the first wall section; and at least one fastener for securing the tapered edge of the first wall section to the flared edge of the second wall section. The at least one fastener includes a bolt extending through the tapered edge and the flared edge, and the bolt is arranged substantially perpendicular to a longitudinal axis of the first and second wall sections.
摘要翻译： 风力涡轮机塔架包括具有锥形边缘的第一基本上管状的壁部分; 第二基本上管状的壁部分，其布置成与第一壁部分基本共面，具有用于抵靠第一壁部分的锥形边缘的扩口边缘; 以及用于将第一壁部分的锥形边缘固定到第二壁部分的扩口边缘的至少一个紧固件。 所述至少一个紧固件包括延伸穿过所述锥形边缘和所述扩张边缘的螺栓，并且所述螺栓基本上垂直于所述第一和第二壁部分的纵向轴线布置。
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公开(公告)号：US08061999B2
公开(公告)日：2011-11-22
申请号：US12275890
申请日：2008-11-21
IPC分类号： F01D5/08
CPC分类号： F03D1/0691 , F03D80/00 , F03D80/50 , Y02E10/721 , Y02E10/726
摘要： A simple and safe means is provided to gain entry into the rotor hub of a wind turbine for maintenance operations within the hub. A ladder-like structure is mounted onto the rotor hub using the same bolts attaching a fixed outer race of the pitch bearing for the rotor blades. The ladder-like structure has integral with it a protective cage to the front, forming a basket. Structural elements for grasping are provided to a worker over the full path traversed from the nacelle to the entry hatch of the hub. An expanded area between rungs may be provided to facilitate entry by a service worker into the safety cage area. Lifting ears made also be formed with tubular sections integrated into the ladder-like structure.
摘要翻译： 提供了一种简单和安全的手段来获得进入风力涡轮机的转子轮毂，用于轮毂内的维护操作。 梯形结构使用相同的螺栓安装在转子轮毂上，该螺栓连接用于转子叶片的变桨轴承的固定外圈。 梯子状结构与前面一体形成一个保护笼，形成一个篮子。 用于把持的结构元件通过从机舱穿过的完整路径提供给工作人员到轮毂的入口舱口。 可以提供梯级之间的扩展区域以便于服务工作者进入安全保护区域。 起吊耳也形成有集成到梯状结构中的管状部分。
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公开(公告)号：US08047774B2
公开(公告)日：2011-11-01
申请号：US12208495
申请日：2008-09-11
申请人： Bharat S. Bagepalli
发明人： Bharat S. Bagepalli
IPC分类号： F01D5/08
CPC分类号： H02K7/1823 , F03D80/40 , F03D80/60 , F05B2260/205 , H02K7/183 , H02K7/1838 , H02K9/02 , H02K9/19 , H02K15/125 , Y02E10/726
摘要： A heating and cooling system for a wind turbine is provided and includes a gearbox, gearbox heat exchanger, generator, generator heat exchanger, and a cooling duct. The cooling duct is connected to the gearbox and generator heat exchangers, and is used to transport air across both heat exchangers to cool the gearbox and generator.
摘要翻译： 提供了一种用于风力涡轮机的加热和冷却系统，包括齿轮箱，齿轮箱热交换器，发电机，发电机热交换器和冷却管道。 冷却管连接到齿轮箱和发电机热交换器，用于在两个热交换器之间输送空气以冷却齿轮箱和发电机。
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公开(公告)号：US20100135821A1
公开(公告)日：2010-06-03
申请号：US12609510
申请日：2009-10-30
CPC分类号： E04H12/08 , F03D13/20 , F03D13/40 , F05B2240/912 , F05B2250/121 , Y02E10/728
摘要： A tower having a plurality of axial sections is provided. The tower includes at least one lower axial section having a non-circular cross-section in at least a portion thereof. The lower axial section is located near a bottom of the tower. At least one upper axial section has a substantially circular cross-section in at least a portion thereof, and is located near a top of the tower. The tower has a cross-sectional profile that transitions from the non-circular cross-section to the substantially circular cross-section, and an outer diameter of the tower is less than a designated maximum diameter.
摘要翻译： 提供具有多个轴向部分的塔架。 该塔架包括在其至少一部分中具有非圆形截面的至少一个下部轴向部分。 下轴向部分位于塔的底部附近。 至少一个上轴向部分在其至少一部分中具有基本圆形的横截面，并且位于塔的顶部附近。 该塔具有从非圆形横截面向基本圆形的横截面转变的横截面轮廓，塔的外径小于指定的最大直径。
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