| 摘要 |
The servomotor, comprising a rigid housing (1) with a cylindrical wall (10) and an inner mobile partition (3) dividing it into front and rear variable-volume chambers (21, 22), has the edge (310) of the partition separated from the cylindrical wall of the chamber by an annular gap (E) filled by a membrane (32). The membrane is in the form of an air-filled chamber (33) with a fold (330) that receives the partition edge, filling the gap between the partition and housing wall and able to roll relative to the wall when the partition moves. It also has at least one aperture (321) connecting it to the rear chamber (22).
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