Movement control device with double balancing
AssigneeManitou Italia S.R.L.
InventorMarco Iotti
Life of this patent
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Abstract
A device for controlling movement of a load. The device includes a first conduit, designed to be connected to a first chamber of a hydraulic actuator, a second conduit designed to be connected to a second chamber of the hydraulic actuator, a first balancing valve, positioned along the first conduit, which is normally closed and is actuated towards an open position by the pressure present in the second conduit, a second balancing valve, positioned along the second conduit, which is normally closed and is controlled towards an open position by the pressure present in the first conduit, and a third balancing valve, positioned along the first conduit, which is normally closed and is actuated towards an open position by the pressure present in the second conduit.
Claims8
Device for controlling movement of a load, comprising:
- a first conduit (10), designed to be connected to a first chamber (C1) of a hydraulic actuator (C);
- a second conduit (20) designed to be connected to a second chamber (C2) of the hydraulic actuator (C);
- a first balancing valve (11), positioned along the first conduit (10), which is normally closed and is actuated towards an open position by the pressure present in the second conduit (20);
- a second balancing valve (21), positioned along the second conduit (20), which is normally closed and is controlled towards an open position by the pressure present in the first conduit (10);
- and
- a third balancing valve (13), positioned along the first conduit (10), which is normally closed and is actuated towards an open position by the pressure present in the second conduit (20).
Dependencies are inferred from the claim text.