| 摘要 |
<p>Mechanically controlled power transmission device comprising a rotary engine driving, through a lever (3) and a clevis, (5), a hydraulic slide valve (1) which consists, in a known manner, of a rod (6) sliding in a hole (7) and includes blocks (P1, P2) capable of selectively establishing communication between firstly a user device (U) and secondly a high pressure source (H) or an outlet (E). Two springs (R1, R2) act on the slide valve in opposite directions, return the latter, in the event of a breakdown, into a neutral position which is preferably a position in which no communication is established. The device of the invention is for use in the motor car industry.</p> |
