Hydac Filtertechnik Gmbh

Hydac Fluidcarecenter Gmbh

Martin Freidinger

Viktor Josef Lauer

André Michael Schneider

Daniel Kleemann

Christophe Hainka

Jörg Michael Wendels

Yves Muller

A filter device is for the filtration of gases contaminated with particles, such as welding gases, in particular produced in manufacturing processes using 3D printers in a production room (). The filter device has a filter circuit having at least one filter element (), which filters the particles from the gas. At least a part of those particles get from this filter element () into an assignable receptacle (). The particles within a back-flushing process get into the respective receptacle (). At least one further filter circuit has at least one further filter element (NF, NFthat filters a fluid having the particles obtained at the back-flushing process.

Filter device for the filtration of gases contaminated with particles

A filter device for fluids has a connection member () with a fluid input () for unfiltrate and fluid output () for filtrate, a first () and second filter elements () and a switching device () located in the connection member (). By the switching device, a fluid connection between the fluid input () and fluid output () can be selectively established via the first filter element () or the second filter element (). One of the filter elements is integrated into the interior of the connection member () as an auxiliary filter ().

Filter device for fluids

A filter arrangement includes at least two filter chambers that are alternately impinged upon through the activation of a reversing valve, a manually operated reversing lever, a compensation valve which can be activated for pressure compensation between the filter chambers, and a detent device to enable the reversing valve to be activate in dependence on the activation of the compensation valve. The reversing lever is configured in the form of a two-armed pivoted lever mounted on the reversing valve so that it can pivot such that the lever arm facing away from the handle part of the reversing lever activates the compensation valve during the pivoting movement. The second lever arm forms the handle part and moves the detent device out of its locking position and into the release position enabling the activation of the reversing valve.

Reversing valve for a filter arrangement with at least two filter chambers

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Saarbrücken, Germany

Martin Freidinger