| 摘要 |
A gear shifting gate with pneumatic servo-control in a gear-box (1) is essentially comprised of two working cylinders (41, 42) controlled by servo-valves (33, 34, 35, 36) of which the path strokes are indicated by position indicator switches (50, 51). In the driver's cabin there is provided a gearshift lever console (6) signalling the shifting commands by the position indicator switches (11, 12) to an electronic control device (15) which controls the gear shifting gate of the gear-box. For the feedback of the gear states of the gear-box (1) to the gear shifting lever (7), there is provided in the gear lever console (6) a working cylinder (18) acting directly by a mechanical link on the gear lever (7). |
