| 摘要 |
The vehicle heating /ventilation flap is regulated by a transmission system comprising an enclosure (1) filled with an incompressible hydraulic oil (2). The enclosure wall is formed by primary (4) and secondary (6) bellows. Each bellows is closed at one axial end (7,8) and communicates through the other end with the rest of the enclosure (5). Axial displacement (d1) of the first end of the primary bellows corresponds to an axial displacement (d2 = a x d1) of the first end of the secondary bellows. An input part (9) mechanically connected to the flap drive impresses the axial displacement of the primary bellows. An output part (10) mechanically connected to a movable part is displaced by the first end of the secondary bellows during its displacement. |
