| 摘要 |
A brush seal usable in high temperature sealing applications having brush bristles and a sealing membrane of stress and deflection accommodating construction capable of longitudinal extensibility when subjected to stress, strain and/or deformation. Sealing membrane has one portion slidably overlapped with another portion in at least one direction enabling relative movement that helps accommodate stress, strain and/or deflection during manufacture, use and operation. In one embodiment, membrane is folded over itself providing slidable overlapping in one direction and is formed of overlapping membrane sheets providing slidable overlapping in another direction. In another embodiment, membrane has spaced deformation regions providing longitudinal extensibility that helps accommodate membrane stress, strain and/or deflection. Membrane can be made of temperature resistant metallic foil having a thickness no greater than brush bristle width or diameter and is embeddable in bristles of the brush seal. |
