| 专利名称： | CERAMIC MATRIX COMPOSITE AIRFOIL TRAILING EDGE ARRANGEMENT |
| 公开（告）号： | |
| 公开（公告）日： | 2007-04-04 00:00:00 |
| 申请（专利）号： | EP20050851170(EP1768893) |
| 申请日： | 2005-04-21 00:00:00 |
| 发明（设计）人： | SIEMENS POWER GENERATION INC (US) |
| (申请)专利权（人）： | MORRISON JAY A (US);ALBRECHT HARRY A (US) |
| 内容： | An airfoil ( 30 ) having a continuous layer of ceramic matrix composite (CMC) material ( 34 ) extending from a suction side ( 33 ) to a pressure side ( 35 ) around a trailing edge portion ( 31 ). The CMC material includes an inner wrap ( 36 ) extending around an inner trailing edge portion ( 38 ) and an outer wrap ( 40 ) extending around an outer trailing edge portion ( 42 ). A filler material ( 44 ) is disposed between the inner and outer wraps to substantially eliminate voids in the trailing edge portion. The filler material may be pre-processed to an intermediate stage and used as a mandrel for forming the outer trailing edge portion, and then co-processed with the inner and outer wraps to a final form. The filler material may be pre-processed to include a desired mechanical feature such as a cooling passage ( 22 ) or a protrusion ( 48 ). The filler material may include an upper layer ( 77 ) and a lower layer ( 78 ) separated by an intermediate layer ( 76 ) that extends to between the inner wrap and the outer wrap along the suction and/or pressure sides. |
发布日期：2007-08-27 11:09:00