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1. 发明申请

US20110248452A1 AXIALLY-ORIENTED CELLULAR SEAL STRUCTURE FOR TURBINE SHROUDS AND RELATED METHOD 有权
标题翻译：涡轮轴承的面向轴向的密封结构及相关方法
公开(公告)号：US20110248452A1
公开(公告)日：2011-10-13
申请号：US12757584
申请日：2010-04-09
申请人： Joshy JOHN , Sanjeev Kumar JAIN , Rajnikumar Nandalal SUTHAR
发明人： Joshy JOHN , Sanjeev Kumar JAIN , Rajnikumar Nandalal SUTHAR
IPC分类号： F16J15/447 , B23P11/00
CPC分类号： F01D11/127 , F05D2250/283 , Y10T29/49826
摘要： A seal system between a row of buckets supported on a machine rotor and a surrounding stationary casing or stator includes a tip shroud secured at radially outer tips of each of the buckets, the tip shroud formed with a radially-projecting rail. A cellular seal structure is supported in the stationary stator in radial opposition to the tip shroud and the rail. The seal structure has an annular array of individual cells formed to provide continuous, substantially horizontal flow passages devoid of any radial obstruction along substantially an entire axial length dimension of the cellular seal structure to prevent flow about the tip shroud from turning radially inwardly.
摘要翻译：支撑在机器转子和周围的固定壳体或定子之间的一排铲斗之间的密封系统包括固定在每个铲斗的径向外部尖端处的尖端罩，所述尖端护罩形成有径向突出的轨道。蜂窝密封结构在固定式定子中以尖端护罩和导轨的径向相反的方式支撑。密封结构具有单个单元的环形阵列，其形成为提供连续的，基本上水平的流动通道，其在多孔密封结构的基本上整个轴向长度尺寸处没有任何径向阻塞，以防止尖端护罩周围径向向内转动。

2. 发明申请

US20130022444A1 LOW PRESSURE TURBINE EXHAUST DIFFUSER WITH TURBULATORS 审中-公开
标题翻译：低压涡轮排风机，带涡轮增压器
公开(公告)号：US20130022444A1
公开(公告)日：2013-01-24
申请号：US13185861
申请日：2011-07-19
申请人： Sudhakar NEELI , Joshy JOHN , Kevin Joseph BARB
发明人： Sudhakar NEELI , Joshy JOHN , Kevin Joseph BARB
IPC分类号： F04D29/44
CPC分类号： F01D25/30
摘要： A turbine exhaust diffuser for use adjacent a last stage row of buckets fixed to a turbine rotor includes an annular inner diffuser ring and an annular outer diffuser ring defining a flow path for steam exiting a last stage row of buckets in a first substantially axial direction at a diffuser inlet, and turning substantially ninety degrees to a diffuser outlet. The outer diffuser ring has a curved steam guide surface extending between the diffuser inlet and the diffuser outlet including a first portion extending away from the diffuser inlet and a second portion extending to said diffuser outlet, the second portion shaped to extend beyond vertical and back toward the diffuser inlet so as to establish a flow component in a second opposite axial direction. The second portion is also provided with a plurality of turbulators to minimize flow separation along the steam guide surface.
摘要翻译：用于与固定在涡轮机转子上的最后一排桶相邻使用的涡轮排气扩散器包括环形内部扩散器环和环形外部扩散器环，该环形外部扩散器环限定用于在第一基本上轴向方向上离开最后一排桶的蒸汽的流动路径扩散器入口，并且向扩散器出口转动大致九十度。外扩散器环具有在扩散器入口和扩散器出口之间延伸的弯曲的蒸汽引导表面，包括远离扩散器入口延伸的第一部分和延伸到所述扩散器出口的第二部分，第二部分成形为延伸超过垂直向后朝向所述扩散器入口以在第二相对轴向方向上建立流动分量。第二部分还设置有多个湍流器以最小化沿着蒸汽引导表面的流动分离。

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