| 摘要 |
<p>The flow-rate control device (10), which is arranged in a branch line (6), comprises a slide (19) forming, together with an outlet channel, a variable constriction ( sigma 1), the slide being biased by a spring, one end of which bears against the end of an actuating rod (30) biased by a piston (21) actuated by a speed-reducing servo-drive unit (22) controlled by an electrical signal (11) dependent on a significant parameter, for example the speed of a vehicle for power-assisted steering of the vehicle. The rod (30) further controls an internal bypass passage (33, 34) parallel to the variable constriction ( sigma 1).</p> |
