Fsp Fluid Systems Partners Holding Ag

Fsp-holding Ag

Wolfgang Rocca

Hermann Christ

Frantisek Vesely

The invention relates to a process for releasing at least one spring accumulator brake (), which is operated by a pressure medium and which is connected to a brake-release-pressure-supply-circuit () in normal operation for impact with a brake release pressure and which, in service operation, is detached from the circuit () in case of failure of the brake release pressure and is released through a pressure medium source () against the spring force of the spring accumulator. To develop the process in such a way that the risk of an accident taking place reduces after the brake release pressure has failed, it has been proposed in the invention that at least one brake () gets re-connected automatically with the circuit () when the brake release pressure is provided again. Further, an apparatus and a hydraulic circuit for carrying out the process are proposed.

Process for release of at least one pressure medium operated spring accumulator brake and an apparatus and hydraulic circuit for carrying out the process

The invention relates to a screw-in valve comprising a screw-in component, a sleeve with at least two connection openings to which a pressure load can be alternately applied, and a valve piston held for axial displacement in the sleeve for opening and closing a flow connection between the connection openings. In order to further develop the screw-in valve so as to reduce the risk of impairing movement of the valve piston on account of misalignment of the screw-in component, it is proposed, in accordance with the invention, that the sleeve be mounted so as to be axially immovable but displaceable and/or pivotable perpendicularly to the screw-in direction of the screw-in component relative to the screw-in component.

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Stutensee, Germany

Wolfgang Rocca