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公开(公告)号:US06358002B1
公开(公告)日:2002-03-19
申请号:US09371250
申请日:1999-08-10
IPC分类号: F01D1100
CPC分类号: F01D11/122 , Y02T50/67 , Y02T50/671
摘要: An air seal is illustrated as used in a gas turbine engine. The seal includes at least a seal substrate, a relatively dense, erosion resistant ceramic layer applied over the bond coat, and an abradable ceramic layer applied in a local area over the dense ceramic layer. The abradable ceramic interacts with a component moving relative to the seal, such as a turbine blade that moves relative to the seal, and cooperates with the moving component to provide sealing and thermal insulation.
摘要翻译: 示出了在燃气涡轮发动机中使用的空气密封。 该密封件至少包括密封衬底,施加在粘合涂层上的相对致密的耐侵蚀陶瓷层,以及施加在致密陶瓷层上的局部区域中的可磨损陶瓷层。 可磨损陶瓷与相对于密封件移动的部件相互作用,例如相对于密封件移动的涡轮叶片,并与移动部件配合以提供密封和隔热。