| 摘要 |
An assembly (42,142,242) has a first component at least partially defining a first generally tubular cavity (28,228) or channel. A barrier layer (18,118,218) is embedded within the first component to separate the first component into an inner layer (14,114,214) and an outer layer (16,116,216). The first component has a terminal end (32,132) at which the barrier layer is exposed to the first cavity. A second component at least partially defines a second cavity (54, 254). The second component is positioned with respect to the first component such that the first cavity is in communication with the second cavity. A seal (60,160,260) is used to seal the second component to the first component substantially at the barrier layer. The barrier layer and the seal thereby block at least some of the first component from permeation from the first cavity. A method is also provided. |
