Importance

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Abstract

An adjustment valve for a hydraulic actuator, in particular for orthopaedic devices, in a flow duct, includes a valve sleeve and a valve unit. The valve sleeve has a sleeve wall which forms a receptacle space, and has at least one radially aligned sleeve wall opening. The valve unit is disposed within the receptacle space of the valve sleeve so as to be repositionable between a closed position and an open position. A cavity is formed by the valve unit. The valve unit has at least one valve unit wall which lies opposite the at least one sleeve wall opening and in which is formed a passage opening that in the open position lies opposite the corresponding sleeve wall opening. At least one duct is formed in the sleeve wall and/or the valve unit wall. Ducts formed in the sleeve wall open out at the sleeve wall opening, and ducts formed on the valve unit wall open out at the passage opening.

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First Claim