公开(公告)号：US06250640B1

公开(公告)日：2001-06-26

申请号：US09135334

申请日：1998-08-17

Applicant: Christopher Edward Wolfe ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Lawrence Edward Rentz ,  Roger Jordan Carr ,  Joseph Robert Toth ,  Edward A. Dewhurst ,  Frederick George Baily

Inventor： Christopher Edward Wolfe ,  Norman Arnold Turnquist ,  Robert Harold Cromer ,  Osman Saim Dinc ,  Lawrence Edward Rentz ,  Roger Jordan Carr ,  Joseph Robert Toth ,  Edward A. Dewhurst ,  Frederick George Baily

IPC: F16J15447

CPC classification number: F16J15/442 ,  F16J15/3288

Abstract: A number of sealing segments 20 mounts a brush seal about a rotor. The tips of the brush seal 46 are maintained out of contact with the rotor surface throughout the entire operating range of the turbomachinery. Thus, the increase in temperature resultant from rubs between the bristle tips and the rotor 12 which effectively increase vibrations of the turbomachinery are eliminated. Brush seals are therefore maintained out of contact with the rotor throughout the entire operating range of the turbomachinery and thus do not affect the dynamic behavior of the rotor.

Abstract translation: 许多密封段20围绕转子安装刷子密封件。 在涡轮机械的整个工作范围内，刷密封件46的顶端保持与转子表面不接触。 因此，消除了由刷毛尖端和转子12之间摩擦产生的温度的升高，其有效地增加了涡轮机械的振动。 因此，刷子密封件在涡轮机械的整个操作范围内与转子保持不接触，因此不影响转子的动态特性。

公开(公告)号：US06168377A

公开(公告)日：2001-01-02

申请号：US09238257

申请日：1999-01-27

Applicant: Christopher Edward Wolfe ,  Frederick George Baily ,  Lawrence Edward Rentz ,  Alexander Morson ,  Norman Arnold Turnquist ,  Paul Thomas Marks ,  Roger Jordan Carr

Inventor： Christopher Edward Wolfe ,  Frederick George Baily ,  Lawrence Edward Rentz ,  Alexander Morson ,  Norman Arnold Turnquist ,  Paul Thomas Marks ,  Roger Jordan Carr

IPC: F01D1100

CPC classification number: F01D11/001 ,  F16J15/3288

Abstract: Brush seals are employed on steam turbine rotors without the risk of causing thermal rotor bowing and without compromising the sealing performance. In one form, a groove in the rotor has an insert in frictional contact with the brush seal. The non-uniform distribution of heat due to frictional contact between the brush seal and proud portions of the rotor is dissipated within the insert such that adjoining rotor portions are substantially uniformly heated without causing thermal bow. In a further form, a groove or grooves are provided in the rotor surface adjacent to the brush seal and maintain non-uniform heat distribution locally in the rotor without causing thermal bow of the rotor. In another form, a land projects radially outwardly of the rotor surface in contact with the brush seal. The non-uniform distribution of heat due to frictional contact between proud portions of the land and the brush seal dissipates into a uniform distribution of heat in the rotor proper to avoid thermal bowing. In a final form, the brush seal has frictional contact with bucket dovetail or wheel protrusions spaced radially outwardly of the rotor such that non-uniform distribution dissipates into a uniform distribution within the rotor.

Abstract translation: 汽轮机转子上使用刷子密封件，而不会导致热转子弯曲并且不影响密封性能。 在一种形式中，转子中的槽具有与刷密封件摩擦接触的插入件。 由于刷子密封件和转子的骄人部分之间的摩擦接触引起的热量的不均匀分布在插入件内消散，使得相邻的转子部分基本均匀地加热而不引起热弓。 在另一种形式中，在转子表面中设置有与刷子密封件相邻的凹槽或槽，并且在转子中局部地保持不均匀的热分布，而不会导致转子的热弓。 在另一种形式中，一个脊面与转子表面径向向外突出地与刷子密封接触。 由于陆地骄傲部分和刷子密封件之间的摩擦接触导致的热量的不均匀分布在转子中散发成均匀的热分布，以避免热弯曲。 在最终形式中，刷子密封件与铲斗的燕尾榫摩擦接触或轮毂径向向外偏离转子，使得不均匀的分布在转子内消散成均匀的分布。