公开(公告)号：US20060267290A1

公开(公告)日：2006-11-30

申请号：US11134177

申请日：2005-05-20

申请人： Doug Spencer ,  Mohsiul Alam ,  Mingfong Hwang

发明人： Doug Spencer ,  Mohsiul Alam ,  Mingfong Hwang

IPC分类号： F16J15/00

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。

公开(公告)号：US20060204153A1

公开(公告)日：2006-09-14

申请号：US11078864

申请日：2005-03-10

申请人： Mohsiul Alam ,  Doug Spencer

发明人： Mohsiul Alam ,  Doug Spencer

IPC分类号： F16C27/00

CPC分类号： F01D25/164 ,  F05D2230/642 ,  F16C19/06 ,  F16C27/045 ,  F16C2360/23

摘要： A support for a bearing comprises a resilient ring having unevenly spaced inner and outer bumpers. The unevenly spaced bumpers provide anisotropy to the rotor to preclude non-synchronous vibration. The inner bumpers can be ground to provide a vertical offset of the rotor centerline to accommodate the deflection due to the rotor weight. A tangential groove in the outer bumper allows oil passage during ring deflection so that oil can be squeezed out under dynamic load, providing additional viscous damping to the rotor.

摘要翻译： 轴承的支撑件包括具有不均匀间隔的内部和外部缓冲器的弹性环。 不均匀的缓冲器为转子提供各向异性以排除非同步振动。 内部缓冲器可以被研磨以提供转子中心线的垂直偏移，以适应由于转子重量而引起的偏转。 外保险杠中的切向槽允许在环偏转期间油通过，使得油在动态载荷下被挤出，为转子提供额外的粘性阻尼。

公开(公告)号：US20070165971A1

公开(公告)日：2007-07-19

申请号：US11333711

申请日：2006-01-17

申请人： Mohsiul Alam ,  Doug Spencer

发明人： Mohsiul Alam ,  Doug Spencer

IPC分类号： F16C27/00

CPC分类号： F02C7/06 ,  F01D25/164 ,  F05D2240/53 ,  F16C19/26 ,  F16C27/045 ,  F16C33/6677 ,  F16C2360/23 ,  F16F15/0237 ,  Y02T50/671

摘要： A squeeze film damper is provided that includes a fluid source, a shaft, a bearing assembly, a static bearing support, and a dam. The shaft includes openings formed therein and an annular channel in communication therewith that is configured to receive fluid from the fluid source. The bearing assembly is disposed concentric to the shaft and includes an inner race coupled to the shaft, an outer race disposed concentric to the inner race, and a rolling element disposed between the inner and outer races. Each of the inner and outer races includes openings configured to receive fluid from the shaft opening. The static bearing support housing is spaced apart from the outer race to define a clearance therebetween. The dam is disposed adjacent the bearing assembly and extends radially inwardly relative to the bearing support housing defining a shelf for receiving the fluid from the race openings and directing the fluid into the clearance.

摘要翻译： 提供一种挤膜式阻尼器，其包括流体源，轴，轴承组件，静态轴承支撑件和坝。 轴包括形成在其中的开口和与其连通的环形通道，其构造成从流体源接收流体。 所述轴承组件与所述轴同心地设置并且包括联接到所述轴的内座圈，与所述内座圈同心设置的外座圈和设置在所述内座圈和所述外座圈之间的滚动元件。 内圈和外圈中的每一个包括构造成从轴开口接收流体的开口。 静态轴承支撑壳体与外圈间隔开以限定其间的间隙。 大坝相对于轴承组件设置并且相对于轴承支撑壳体径向向内延伸，该轴承支撑壳体限定用于接收来自座圈开口的流体并将流体引导到间隙中。

公开(公告)号：US20060083448A1

公开(公告)日：2006-04-20

申请号：US10967979

申请日：2004-10-19

申请人： Mohsiul Alam ,  Doug Spencer ,  Shari Charleston ,  Paul Talbert ,  Edward Jankowich ,  Matthew Johnson

发明人： Mohsiul Alam ,  Doug Spencer ,  Shari Charleston ,  Paul Talbert ,  Edward Jankowich ,  Matthew Johnson

IPC分类号： F16C27/00

CPC分类号： F16F15/0237 ,  F01D25/164 ,  F16C19/06 ,  F16C27/045 ,  F16C2360/23 ,  Y02T50/671

摘要： The present invention provides a centering feature to the bearing assembly of a turbomachine to provide optimum operating characteristics of the squeeze film damper. Unlike conventional bearing centering methods and apparatus, a compact compliant centering support for the squeeze film damper interfaces between a bearing outer race, and an outer support structure. The compact design is lightweight and inexpensive, can be retrofitted easily to an existing turbomachine, such as a turbine and compressor, for improved rotor dynamic performance. The compact compliant centering support damper may be comprised of a ring with bumpers spaced around the circumference at the inside and outside diameters to form spring elements between the bumpers. The centering support may lift the rotor inside the squeeze film cavity and may eliminate rotor weight effect on the damper performance. The centering support may be offset in the vertical direction to center the rotor under 1 g deflection to eliminate rub at the 6 o'clock location of a compressor or turbine shroud. Tangential grooves may be provided on the centering support outer bumpers to allow oil to squeeze out when the centering support is deflected to provide additional viscous damping. The outer bumper height may be controlled to limit maneuver deflection of the rotor.

摘要翻译： 本发明为涡轮机的轴承组件提供定心特征，以提供挤压薄膜阻尼器的最佳操作特性。 与传统的轴承定心方法和装置不同，用于挤压薄膜阻尼器的紧凑型配合定心支架在轴承外圈和外支撑结构之间形成界面。 紧凑型设计重量轻，价格便宜，可以轻易地改装到现有的涡轮机，如涡轮机和压缩机，以提高转子的动态性能。 紧凑型对中支撑阻尼器可以包括具有在内部和外部直径周围围绕圆周间隔开的缓冲器的环，以在缓冲器之间形成弹簧元件。 定心支架可以提升挤压膜腔内的转子，并可以消除转子重量对阻尼器性能的影响。 定心支撑件可能在垂直方向上偏移，使转子居中在1g变形下，以消除压缩机或涡轮机护罩6点钟位置的摩擦。 切向槽可以设置在定心支撑外部缓冲器上，以便当定心支撑件偏转时允许油挤出以提供额外的粘性阻尼。 可以控制外保险杠高度以限制转子的机动偏转。