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    • 12. 发明公开
    • INLET SECTION FOR USE IN A HYDRAULIC DISTRIBUTOR
    • EP4170188A1
    • 2023-04-26
    • EP22196863.9
    • 2022-09-21
    • Bucher Hydraulics S.p.A.
    • RIVA, Massimo
    • F15B11/16F15B13/04
    • An inlet section (1) for use in a hydraulic distributor (FS), comprising:
      a slider (6) longitudinally sliding within a valve body (2) between a first position in which it prevents the passage of fluid from a high pressure line (HP) to a low pressure line (TL), and a second position in which it enables it, with a first area (S1) subjected to the action of a first pressure fed by the high pressure line (HP) and in a direction such as to push the slider (6) towards the second position, and a second area (S2) subjected to a second pressure acting in the opposite direction to the first and fed by a line (LS) for detecting the highest load pressure required downstream;
      a main spring (11) active on the second area (S2) of the slider (6) in a direction consistent with the action of the second pressure;
      a control device (4) of the position of the slider (6), comprising a mechanical thrust means (17) selectively active on the slider (6) to force it in the second position and a control spring (27) active thereon opposed to the main spring (11).
      The control device (4) is configurable in a thrust condition, in which it acts on the first area (S1) of the slider (6) together with the first pressure to force it into the second position thereof, and in a deactivating condition, in which it is distanced and retracted from the first area (S1) of the slider (6).