Rt-filtertechnik Gmbh

Filtration Group Gmbh

Marco Bautz

Gerhard Stehle

Mathias Dieter

Elias Donat

Jakob Rostocki

A filter device has a housing () and a filter element () that can be received in the housing in a replaceable manner. The housing and filter element engage with at least two key parts () or lock parts. The lock parts () or key parts of the housing () are associated with each other respectively in pairs in an engaged manner, as a coding and/or setting and/or functional structure and/or reproduction protection.

Filter device

A filter device with a removable termination part () and a housing () that receives a replaceable filter element () having two end caps (). Between the end caps, a filter material () extends. A positioning device () is arranged between the termination part () and one end cap (). The positioning device positions the filter element () within the housing (), at least when viewed in the circumferential direction of the filter element, in interaction with at least one corresponding positioning element () of the end cap ().

Filter element

A filter device for fluids, in particular in the form of a tank-installation return filter, includes a filter element () accommodated in a housing () having a fluid inlet () for supplying unfiltered fluid to an inner cavity () of the filter element (). The inner cavity is surrounded by a filter medium () through which unfiltered fluid can flow. A flow-conducting apparatus () orients the flow of the unfiltered fluid reaching the filter medium () and is provided between the fluid inlet () and the inner cavity () of the filter element ().

Filter device for fluids

A filter device has at least one filter element () exchangeably received in a housing (). The filter element has a filter medium () permeable to a flow of the fluid to be purified and has, on at least one end, an end cap () that, for the purpose of positioning of the filter element () in a functional position, interacts with a fixing body () connected to a removable cover () of the housing (). A bypass valve () is provided on the fixing body (). On the fixing body (), a wall part () in the functional position forms a dividing element in the housing separating the housing into a filter element chamber () and a bypass chamber () situated at the outflow side of the bypass valve (). The bypass chamber has a protective filter () through which the fluid flowing out of the bypass valve () can flow.

A filter device has a support part () receiving a filter part (), a sealing device () acting between the support part () and the filter part (), and a securing device () releasably connecting the support part () to the filter part (). The securing device has a circumferential collar part () that, under the action of an energy store (), exerts a force on the sealing device (). That force seals the support part () and the filter part () in a fluid-tight manner with respect to one another. The support part () has, on its end region oriented toward the securing device (), another circumferential collar part (). The collar part () of the securing device () is guided concentrically within the collar part () of the support part () provided with a sealing system ().

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Friedrichshafen, Germany

Marco Bautz