| 专利名称： | Flexible, high-temperature ceramic seal element |
| 公开（告）号： | |
| 公开（公告）日： | 2008-08-21 00:00:00 |
| 申请（专利）号： | US2008199307 |
| 申请日： | 2007-02-15 00:00:00 |
| 发明（设计）人： | SIEMENS POWER GENERATION INC |
| (申请)专利权（人）： | KELLER DOUGLAS A (US) |
| 内容： | A ceramic seal element ( 200 ) for use in a turbo-machine comprises a first, rigid portion ( 210 ) comprising ceramic fibers ( 212 ) bound within a ceramic matrix binder ( 214 ), a second, flexible portion ( 220 ) comprising ceramic fibers ( 222 ), and a third, rigid portion ( 230 ) comprising ceramic fibers ( 232 ) bound within a ceramic matrix binder ( 234 ). Ceramic fibers ( 222 ) retain a desired flexibility because they are not bound in ceramic matrix binder. In some embodiments the ceramic fibers ( 212, 222, 232 ) are stacked as horizontally disposed layers ( 225 ). Also, the fibers ( 212, 222, 232 ) of any layer ( 225 ) comprise bundles of fibers wherein some of the bundles extend continuously across portions ( 210, 220, 230 ). An alternative sealing element ( 300 ) comprises a first, rigid portion ( 310 ) comprising ceramic fibers ( 312 ) that are bound within a ceramic matrix binder ( 314 ), and a second, flexible portion ( 320 ) that comprises ceramic fibers ( 313 ) that retain a desired flexibility. Methods of manufacture are disclosed. |
发布日期：2008-11-27 11:29:00