| 摘要 |
Improved seal (1) for sealing parts (8-10) moving in relation to each other, characterised in that the improved seal (1) mainly consists of an annular metal element (2) with a cross section formed of a first predominantly U-shaped or C-shaped part (4) with two legs (5,6) on either side of the surface (X-X') of the seal (1) and a second lip-shaped part (7) connected to the latter on the one hand, and of means (3) which make it possible, when the seal is compressed in a direction which is diagonal to the above-mentioned surface (X-X') of the seal (1), to push the lip-shaped part (7) away from the U-shaped or C-shaped part (4) on the other hand.
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