| 摘要 |
<p>The control valve is reset by a measuring motor, in order to couple a pump, via the measuring motor, to a work chamber of a servomotor, or the latter second work chamber to a tank, according to the measuring motor direction of rotation. With the manual valve actuator is non-rotatably coupled a rotary slider, fitted via a housing bore. The slider has two sets of distribution ports in a distribution annular section. These ports cooperate with valve apertures, connected to delivery chambers of the measuring motor, in order to supply pressurised liquid to and from the delivery chambers in correct sequence. In axial direction are sequentially arranged a tank annular section (13), a pump annular section (16), one servomotor annular section (19), a distribution annular section (34,37), the other servomotor annular section (25) and a further pump annular section (28).</p> |
