| 摘要 |
A brush seal device for sealing a gap of varying dimensions between two parts moving relatively, has a brush (2) formed by a number of thin bristles (3) arranged in a wall-like form, one end secured to one part in parallel with a retaining portion (4) that supports the brush (2), and a seal portion at the other end facing the other part for sealing the gap. When the dimensions of the gap change and an inner diameter edge portion of the seal portion contacts the other part, a lubricant (7, 8) interposed between each contact surface of the brush (2) and/or the retaining portion (4) makes a friction coefficient of the contact surface of the brush (2) small, so as to facilitate deflection of the brush (2) when the other part contacts the brush (2). <IMAGE>
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