Rt-filtertechnik Gmbh

Hydac Filtertechnik Gmbh

Frank Oberli

Viktor Josef Lauer

John Kazimierz Duchowski

Dirk Schönfeld

Dirk Schoenfeld

Uwe Fries

Andreas Steiche

Robert Kessel

Volker Grobe

Daniel Hirt

Daniel Kleemann

A separating device, particularly a spiral separator (), separates impurities, particularly in the form of solids, from a gaseous medium flow, such as air. The medium can be fed to a spiral-shaped guiding device () that brings about an at least partial separation of the respective impurities from the medium flow. The guiding device () has a plurality of spiral arms () that delimit radially extending flow spaces () and that are arranged in an adjacent manner opposite to one another such that the medium flow is guided radially outwards.

Separating device

A filter element has a preferably multilayer structure of a pleated filter medium () with a plurality of individual filter pleats (). Due to an alternating sequence of filter pleats () with a first pleat height (h) and filter pleats () with a second pleat height (h), more effective filter surfaces are available than with filter pleats with a uniform pleat height. Upon throughflow by a fluid to be filtered, a lower surface load for the filter medium (and lower passage speed of the fluid are present during filtration. A static loading of the filter medium () during operation of the filter is then reduced. A hydraulic circuit has such a filter element ().

Filter element

Filter element and hydraulic circuit with such a filter element

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Eglisau, Switzerland

Frank Oberli