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AssigneeHydac Fluidtechnik GmbH
InventorsPeter Bruck, Markus Bill
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The invention relates to a valve, in particular a pilot-operated proportional directional poppet valve, having a valve housing (7) which has a fluid inlet (21) and a fluid outlet (23), wherein the fluid stream between the fluid inlet (21) and the fluid outlet (23) is adjustable by a main piston (27), wherein a pilot valve chamber (37) provided on a rear face (29) of the main piston (27) has a pilot valve closing member (33) which can be moved by an actuating device (69) and by which the fluid stream between the pilot valve chamber (37) and the fluid outlet (23) can be adjusted, wherein an supply aperture (3) is arranged between the fluid inlet (21) and the pilot valve chamber (37), characterised in that the opening cross-section of the supply aperture (3) can be reduced by a control element (49).
A valve, in particular a pilot-operated proportional directional poppet valve, having a valve housing (7) which has a fluid inlet (21) and a fluid outlet (23), wherein the fluid stream between the fluid inlet (21) and the fluid outlet (23) is adjustable by means of a main piston (27), wherein a pilot valve chamber (37) provided on a rear face (29) of the main piston (27) has a pilot valve dosing member (33) which can be moved by an actuating device (69) and by means of which the fluid stream between the pilot valve chamber (37) and the fluid outlet (23) can be adjusted, wherein a supply aperture (3) is disposed between the fluid inlet (21) and the pilot value chamber (37), characterized in that the opening cross-section of the supply aperture (3) can be reduced by a control element (49).
Dependencies are inferred from the claim text.