公开(公告)号：US08876389B2

公开(公告)日：2014-11-04

申请号：US14122241

申请日：2012-03-30

申请人： Martin D. Maier ,  H. Allan Kidd

发明人： Martin D. Maier ,  H. Allan Kidd

IPC分类号： F16C32/04 ,  F16C41/04

CPC分类号： F16C32/0406 ,  F16C17/028 ,  F16C17/035 ,  F16C17/20 ,  F16C17/24 ,  F16C32/0402 ,  F16C32/0442 ,  F16C39/02 ,  F16C41/04

摘要： Coast-down bearing apparatus and methods are provided. The coast-down bearing includes a plurality of segments each having a radius of curvature substantially equal to an outer radius of a shaft and spaced radially therefrom to define a clearance, with the plurality of segments being configured to receive the shaft when a magnetic bearing drops the shaft. The coast-down bearing also includes a plurality of slots disposed between adjacent ones of the plurality of segments.

摘要翻译： 提供了自下而上的轴承装置和方法。 滑行轴承包括多个节段，每个节段的曲率半径基本上等于轴的外半径并且与其径向间隔开以限定间隙，多个段构造成当磁轴承下降时接收轴 轴。 滑行轴承还包括设置在多个段中的相邻段之间的多个槽。

公开(公告)号：US08061984B2

公开(公告)日：2011-11-22

申请号：US12419086

申请日：2009-04-06

申请人： Mark Joseph Kuzdzal ,  Harry Francis Miller ,  Glenn R. Grosso ,  Martin D. Maier ,  David J. Peer

发明人： Mark Joseph Kuzdzal ,  Harry Francis Miller ,  Glenn R. Grosso ,  Martin D. Maier ,  David J. Peer

IPC分类号： F01D11/02

CPC分类号： F04D29/102 ,  F01D11/04 ,  F04D29/104 ,  F04D29/122 ,  F04D29/124

摘要： A sealing assembly configured to seal a rotating shaft of a turbo machine having a high pressure process gas, comprising a housing defining a bore configured to receive the rotating shaft and sealing assembly, wherein the housing is mounted to a casing of the turbo machine; a first sealing stage comprising a single dry gas seal and configured to blow down the high pressure process gas to a lower pressure; a labyrinth seal mounted longitudinally outward from the first sealing stage; and a second sealing stage mounted longitudinally outward from the labyrinth seal, wherein the second sealing stage comprises a tandem dry gas seal having a primary dry gas seal and a secondary dry gas seal axially spaced with an intermediate labyrinth seal.

摘要翻译： 密封组件，其构造成密封具有高压处理气体的涡轮机的旋转轴，所述密封组件包括限定被配置为容纳所述旋转轴和密封组件的孔的壳体，其中所述壳体安装到所述涡轮机的壳体; 第一密封阶段，其包括单个干燥气体密封并且构造成将高压处理气体吹走到较低的压力; 从第一密封阶段纵向向外安装的迷宫式密封件; 以及从迷宫式密封件纵向向外安装的第二密封级，其中第二密封级包括具有初级干燥气体密封件和与中间迷宫式密封件轴向间隔开的次级干燥气体密封件的串联干式气体密封件。

公开(公告)号：US5322298A

公开(公告)日：1994-06-21

申请号：US896065

申请日：1992-06-09

申请人： Martin D. Maier

发明人： Martin D. Maier

IPC分类号： F16J15/44 ,  F16J15/447

CPC分类号： F16J15/441

摘要： A shaft seal element (20) for use around a rotatable shaft (10) has an annular sealing surface (22) facing a radially adjacent surface of the shaft or housing. This sealing surface (22) can comprise two outer annular lands (26, 27) with an inner land (28) therebetween. A relief groove (29, 30) separates the inner land (28) from each outer land (26, 27). A plurality of fluid redirecting grooves (40) are obliquely formed across the inner land (28). A protruding ridge (44) is formed at the trailing edge (40b) of each redirecting groove (40). The ridges (44) and redirecting grooves (40) inhibit fluid migration across the sealing surface (22) and divert a portion of the fluid towards the high pressure end of the seal element.

摘要翻译： 用于围绕可旋转轴（10）使用的轴密封元件（20）具有面向所述轴或壳体的径向相邻表面的环形密封表面（22）。 该密封表面（22）可以包括两个在其间具有内部平台（28）的外部环形平台（26,27）。 释放凹槽（29,30）将内部区域（28）与每个外部区域（26,27）分离。 多个流体重定向槽（40）跨越内部区域（28）倾斜地形成。 在每个重定向槽（40）的后缘（40b）处形成突出脊（44）。 脊（44）和重定向槽（40）阻止流体穿过密封表面（22）移动，并将一部分流体转向密封元件的高压端。

公开(公告)号：US5190440A

公开(公告)日：1993-03-02

申请号：US667768

申请日：1991-03-11

申请人： Martin D. Maier ,  Colin Osborne

发明人： Martin D. Maier ,  Colin Osborne

IPC分类号： F01D11/02 ,  F04D29/16 ,  F04D29/66 ,  F16J15/16

CPC分类号： F04D29/162 ,  F01D11/02 ,  F04D29/667 ,  F16J15/164 ,  F05D2210/42

摘要： A labyrinth seal which reduces the inlet swirl and circumferential flow of fluid within the sealing cavity of a rotating shaft system in order to eliminate the destabilizing influence of the labyrinth seal, has a plurality of primary flow bypass passageways which extend from the high pressure face of the seal to the space between a first set and a second set of labyrinth teeth. The plurality of primary flow bypass passageways are equally spaced around the circumference of the seal and are preferably inclined such that the fluid is introduced into the seal cavity at a desired orientation. Each of the primary flow bypass passageways can be a passageway which is inclined at an acute angle to the shaft axis or a combination of an axial passageway and a radial passageway. The primary flow bypass passageways can be in the form of a plurality of generally radial passageways which intersect a common annular opening in the high pressure face of the seal. Also, multiple sets of secondary flow bypass passageways can be positioned at predetermined locations downstream from the first set of passages to function in a similar manner. Annular grooves can be provided in the outer surface of the seal to connect each adjacent set of secondary flow bypass passageways which straddle a set of labyrinth teeth.

摘要翻译： 为了消除迷宫式密封件的不稳定影响，减少旋转轴系的密封空腔内的流体入口涡流和周向流动的迷宫式密封件具有多个主流动旁路通道，其从高压面 密封到第一组和第二组迷宫齿之间的空间。 多个主要流动旁路通道围绕密封件的圆周等间隔开，并且优选地是倾斜的，使得流体以期望的取向被引入到密封腔中。 每个主流动旁路通路可以是与轴线成锐角倾斜的通道或轴向通道和径向通道的组合。 主要流动旁路通道可以是与密封件的高压面中的公共环形开口相交的多个大致径向通道的形式。 而且，多组二次流旁路通道可以位于第一组通道下游的预定位置处，以类似的方式起作用。 环形槽可以设置在密封件的外表面中，以连接跨越一组迷宫齿的每组相邻的二次流旁路通道。

公开(公告)号：US5161943A

公开(公告)日：1992-11-10

申请号：US798513

申请日：1991-11-26

申请人： Martin D. Maier ,  Colin Osborne

发明人： Martin D. Maier ,  Colin Osborne

IPC分类号： F01D11/02 ,  F04D29/16 ,  F04D29/66 ,  F16J15/16

CPC分类号： F04D29/667 ,  F01D11/02 ,  F04D29/162 ,  F16J15/164 ,  F05D2210/42

摘要： A labyrinth seal is disclosed which reduces the inlet swirl and circumferential flow of fluid within the sealing cavity of a rotating shaft system. The primary purpose is to eliminate the destabilizing influence of the labyrinth seal which can induce rotor instability. This is accomplished by the addition of flow bypass passageways which extend from the high pressure face of the seal to the space between the first and second set of labyrinth teeth. The flow bypass passageways are equally spaced around the circumference of the seal and are inclined such that the fluid is introduced into the seal cavity at a desired orientation. Multiple sets of flow bypass passageways are also positioned at predetermined locations downstream from the first set of passages and function in a similar manner. Annular grooves are provided in the outer surface of the seal to connect each adjacent set of flow bypass passageways which straddle each set of labyrinth teeth.

摘要翻译： 公开了一种迷宫式密封件，其减小了旋转轴系统的密封腔内的流体的入口涡流和周向流动。 主要目的是消除迷宫密封的不稳定影响，从而引起转子的不稳定性。 这是通过添加从密封件的高压面延伸到第一和第二组迷宫齿之间的空间的流动旁路通道来实现的。 流动旁路通道围绕密封件的圆周等间隔开，并且倾斜使得流体以期望的取向被引入到密封腔中。 多组流动旁路通道也位于第一组通道下游的预定位置处并以类似的方式起作用。 环形槽设置在密封件的外表面中，以连接每一组相邻的一组流动旁路通道，跨过每组迷宫齿。

公开(公告)号：US5127660A

公开(公告)日：1992-07-07

申请号：US681917

申请日：1991-04-08

申请人： Martin D. Maier

发明人： Martin D. Maier

IPC分类号： F16J15/44

CPC分类号： F16J15/441

摘要： Support mechanism for fluid film seals in turbo machinery is disclosed which controls the relative position of a seal with respect to a shaft by a plurality of wedge support structures that are located between the seal and surrounding seal housing at predetermined circumferential locations. Each support structure consists of a pair of wedge-like elements, one attached to the seal and the other to the housing, which are similar in geometry but positioned in reverse orientation with respect to one another. These form a slidably engaged contact surface inclined at a predetermined angle with respect to the shaft centerline. Positive lubrication is provided between the sliding surfaces by means of fluid supply holes that extend from a region of high pressure within the seal to a slot located inside the sliding face of the wedges. In response to the axial pressure differential acting across the seal, the seal assembly slides along the contact surfaces formed by the wedges and assumes a desired eccentric position with respect to the shaft. The relationship between the axial and radial motion and the corresponding radial force that the seal exerts on the shaft is controlled, in part, by the taper angle of the wedges. The location of the wedge support structures can be selected to either increase or decrease the static load of the shaft at the support bearings.

摘要翻译： 公开了涡轮机械中的流体膜密封件的支撑机构，其通过多个楔形支撑结构来控制密封件相对于轴的相对位置，所述多个楔形支撑结构位于密封件和围绕密封件壳体之间的预定圆周位置处。 每个支撑结构包括一对楔形元件，一个附接到密封件，另一个连接到壳体，其几何形状相似，但是相对于彼此以相反的方向定位。 这些形成相对于轴中心线以预定角度倾斜的可滑动接合的接触表面。 借助于从密封件内的高压区域延伸到位于楔形件的滑动面内的槽的流体供给孔，在滑动表面之间提供了积极的润滑。 响应于跨过密封件的轴向压力差，密封组件沿着由楔形成的接触表面滑动并且相对于轴呈现期望的偏心位置。 轴向和径向运动之间的关系以及密封件施加在轴上的对应的径向力部分地受到楔形的锥角的控制。 可以选择楔形支撑结构的位置来增加或减小支撑轴承处的轴的静态载荷。

公开(公告)号：US08753069B2

公开(公告)日：2014-06-17

申请号：US13522431

申请日：2011-07-30

申请人： Martin D. Maier

发明人： Martin D. Maier

IPC分类号： F01D3/00 ,  F01D25/16 ,  F16C32/04

CPC分类号： F01D3/00 ,  F01D25/16 ,  F05D2240/511 ,  F05D2240/515 ,  F16C32/0442 ,  F16C39/02 ,  F16C39/06

摘要： An apparatus for supporting a shaft of a turbomachine. The apparatus may include a magnetic bearing to support the shaft during a normal operation of the turbomachine, and an auxiliary bearing to support the shaft during a drop event. The apparatus may also include a disk coupled to the shaft and comprising a substantially non-ferrous, conductive material, and a magnetic assembly disposed proximal the disk, the magnetic assembly configured to magnetically engage the disk to damp vibrations during the drop event, to apply a circumferential braking force on the disk during the drop event, or both.

摘要翻译： 一种用于支撑涡轮机的轴的装置。 该装置可以包括用于在涡轮机的正常操作期间支撑轴的磁性轴承，以及在跌落事件期间支撑轴的辅助轴承。 该装置还可以包括耦合到该轴并且包括基本上非铁的导电材料的盘，以及靠近该盘设置的磁性组件，该磁性组件被配置为磁性地接合该盘以在下落事件期间阻尼振动，以应用 在跌落事件期间在盘上的周向制动力，或两者。

公开(公告)号：US20130004104A1

公开(公告)日：2013-01-03

申请号：US13534219

申请日：2012-06-27

申请人： Martin D. Maier ,  H. Allan Kidd

发明人： Martin D. Maier ,  H. Allan Kidd

IPC分类号： F16C33/04

CPC分类号： F16C39/02 ,  F16C17/02 ,  F16C32/0442 ,  F16C2360/44

摘要： A coast-down bearing and method for a magnetic bearing system is provided. The bearing includes first, second, and third rings disposed around a shaft. The first, second, and third rings each have an inner diameter that is greater than an outer diameter of the shaft and provide a running clearance therebetween. The first, second, and third rings are eccentrically positioned with respect to each other to form a pocket for receiving the shaft during a drop, radial shock, or both.

摘要翻译： 提供了一种用于磁轴承系统的滑降轴承和方法。 轴承包括设置在轴周围的第一，第二和第三环。 第一，第二和第三环各自具有大于轴的外径的内径，并且在其间提供运行间隙。 第一，第二和第三环相对于彼此偏心定位以形成用于在下落，径向冲击或两者期间接收轴的凹部。

公开(公告)号：US20120321439A1

公开(公告)日：2012-12-20

申请号：US13522431

申请日：2011-07-30

申请人： Martin D. Maier

发明人： Martin D. Maier

IPC分类号： F01D25/16 ,  F16C32/04

CPC分类号： F01D3/00 ,  F01D25/16 ,  F05D2240/511 ,  F05D2240/515 ,  F16C32/0442 ,  F16C39/02 ,  F16C39/06

摘要： An apparatus for supporting a shaft of a turbomachine. The apparatus may include a magnetic bearing to support the shaft during a normal operation of the turbomachine, and an auxiliary bearing to support the shaft during a drop event. The apparatus may also include a disk coupled to the shaft and comprising a substantially non-ferrous, conductive material, and a magnetic assembly disposed proximal the disk, the magnetic assembly configured to magnetically engage the disk to damp vibrations during the drop event, to apply a circumferential braking force on the disk during the drop event, or both.

摘要翻译： 一种用于支撑涡轮机的轴的装置。 该装置可以包括用于在涡轮机的正常操作期间支撑轴的磁性轴承，以及在跌落事件期间支撑轴的辅助轴承。 该装置还可以包括耦合到该轴并且包括基本上非铁的导电材料的盘，以及靠近该盘设置的磁性组件，该磁性组件被配置为磁性地接合该盘以在下落事件期间阻尼振动，以应用 在跌落事件期间在盘上的周向制动力，或两者。

公开(公告)号：US5651616A

公开(公告)日：1997-07-29

申请号：US733625

申请日：1996-10-17

申请人： Jerome F. Hustak ,  Martin D. Maier

发明人： Jerome F. Hustak ,  Martin D. Maier

IPC分类号： F01D25/16 ,  F16C17/03 ,  F16C27/02

CPC分类号： F16C17/03 ,  F01D25/164 ,  F16C27/02 ,  F05D2250/292

摘要： A bearing structure having an annular cage and an annular housing that optionally mate at frustogeometrical surfaces for supporting and positioning a rotatable shaft of a turbomachine and that optionally provides a squeeze film damper between the frustogeometrical surfaces of the annular cage and the annular housing. A bearing structure having an annular cage and an annular housing that optionally mate at frustogeometrical surfaces for supporting and positioning a rotatable shaft of a turbomachine and that optionally provides an externally adjustable squeeze film damper between the frustogeometrical surfaces of the annular cage and the annular housing. The squeeze film damper is defined by two annular squeeze film seals positioned in respective annular squeeze film seal grooves formed in the frustogeometrical radially outer surface of the annular cage. Lubricant is also delivered to the squeeze film damper which serves as the damping medium.

摘要翻译： 一种具有环形保持架和环形壳体的轴承结构，其可选地配合在截头圆锥表面处，用于支撑和定位涡轮机的可旋转轴，并且可选地在环形保持架的截头圆柱形表面与环形壳体之间提供挤压薄膜阻尼器。 一种具有环形保持架和环形壳体的轴承结构，其可选地配合在截头圆锥表面处，用于支撑和定位涡轮机的可旋转轴，并且可选地在环形保持架的截头圆锥表面与环形壳体之间提供外部可调的挤压薄膜阻尼器。 挤压膜阻尼器由位于环形笼的截头圆锥形径向外表面中的相应的环形挤压膜密封槽中的两个环形挤压膜密封件限定。 润滑剂也被输送到用作阻尼介质的挤压膜阻尼器。