| 摘要 |
<p>The input element comprises a body (2) provided with openings respectively (P) connecting to the pump, (6) the reservoir and (LS) enabling information return to the pump. The body comprises a bore (3) enabling communication between the openings (P) and (T) which are respectively joined to the pump and the reservoir, whereby a piston (8) is mounted therein in order to establish said communication or not, whereby an extremity thereof is subjected to the pressure of the pump and the other extremity is subjected to pressure (LS) for information return and subjected to the pressure of a spring (7). The pressure exerted by the spring (7) is substantially equal to the lift pressure of the pump and the piston and/or body (2) comprise openings (8) for communication of the chambers (4,5) disposed on the pump side (P) and reservoir side (T) when the distributor is in a rest position.</p> |
