| 摘要 |
<p>Pneumatic clutch control device having a control operated by the foot via a pedal (4), and a clutch with at least one disc, characterised in that it comprises an adjustable pneumatic pressure reducer (14) of the 3/2 type controlled by the said clutch pedal (4), a pneumatic jack (8) acting on the clutch mechanism (13), and a pneumatic circuit having a duct (19) for supplying the pneumatic pressure reducer (14) with compressed air, and a duct (20) for supplying the pneumatic jack connecting the latter to the said pneumatic pressure reducer (14) which has an orifice (3) for connection to the atmosphere such that, in the clutch-engagement position (pedal 4 at rest), the duct (20) for supplying the pneumatic jack (8) is brought into communication with the orifice (3) for connection to the atmosphere, and such that during the displacement of the clutch pedal (4), the pressure reducer (14) is arranged so as to establish the communication between the duct (19) for supplying the pressure reducer (14), and the duct (20) for supplying the jack (8), in such a way as to obtain a development of the supply pressure of the jack (8) which follows a law determined as a function of the travel of the pedal (4); the said pressure acting on the jack (8) which is arranged so as to obtain a displacement of the clutch mechanism (13) which follows a law determined as a function of the said pressure. <IMAGE></p> |
