| 摘要 |
The servomotor comprises a rigid casing (3), formed by front (3a) and rear (3b) half shells, with a movable partition (4) delimiting front (5a) and rear (5b) chambers. It has a pneumatic piston (6) and a three way control valve (61), carried by the piston, selectively connecting the rear chamber to first (D) or second (A) pressure sources. The partition is able to be moved from a neutral position in which the rear chamber has a minimum volume to an activating position in which the rear chamber has a maximum volume.
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