Hydac Filtertechnik Gmbh

Helmut Mertens

Andreas Schunk

Frank Hiery

A device for branching a fluidic partial flow off a main flow by a hydraulic pump () includes individual main chambers () sealed from each other and divided into functional groups, and operates according to the displacement principle. The chambers enable fluid from at least one main flow inlet () to be transported from an inlet or suction side to an outlet or pressure side of the hydraulic pump () and then via at least one main flow outlet. At least one independent partial chamber () is provided for the transport of the partial flow in addition to the main chambers (). The partial chamber forms part of the pressure side of the hydraulic pump () and is connected to an independent partial current outlet () separate from the main flow inlet () and the main flow outlet ().

Device for branching off a fluidic partial flow

A filter element for filtering fluids has at least one filter unit () that is disposed concentrically around the axis of the element. The unit is supported on at least one supporting element () in the direction of the flow of the fluid. At least part of the supporting elements () is provided, at least on the side facing the filter unit (), with channels () for guiding the fluid. Longitudinal ribs () delimit the channels (), and extend along the supporting element () in the form of spiral tracks. The two free ends of each channel () emerge at opposite ends of the corresponding supporting element (). The channels () extend continuously along the supporting element, are devoid of multiple deviations in the fluid flow and only partially surround the corresponding supporting element () to form a torsional guide for the fluid flow.

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Riegelsberg, Germany

Helmut Mertens