Mann+hummel Gmbh

Universitaet Stuttgart Institut Fuer Flugzeugbau

Markus Kolczyk

Dieter Schreckenberger

Ralf Blum

Rainer Loos

Martin Weindorf

Herbert Jainek

Karlheinz Muenkel

Stefan Becker

Helmut Luka

Guenter Jokschas

Sascha Bauer

Michael Heim

Sven Epli

Gunnar-Marcel Klein

Thomas Petschl

Joerg Kramer

Michael Thienel

Andreas Franz

Michael Harenbrock

Josef Rohrmeier

Andreas Beck

Nikolaus Moser

Jobst Eisengraeber-Pabst

Matthias Teschner

Marco Goedecke

Karlheinz Münkel

Matthaeus Huber

Michael Durst

Wolfgang Cedzich

Luiz Carlos Fritz

Mathias Schuster

Birgit Herbst

Ralf Kaiser

Klaus Drechsler

Dieter Amesöder

Michael Wein

Rainer Kehrle

Roland Hartmann

Steffen Ritter

Uwe Kaiser

Joachim Kegel

Hans-Günter Wächter

Marco Woitoll

Yves Klett

Daniel Lucas

Kai Knickmann

Jörg Kramer

Karlheinz MÜNKEL

A functional component of a fluid filter is provided with at least one component connection element of a mechanical connection device, wherein the at least one component connection element can be connected releasably to at least one corresponding housing connection element of the mechanical connection device by a rotation/push-in movement about a virtual axis. The at least one corresponding housing connection element is provided at a filter housing of the fluid filter. The at least one component connection element has at least one securing contour that interacts with at least one joining element to secure the mechanical connection device and prevent an accidental release of the mechanical connection device, wherein the at least one joining element is connected to the filter housing after the functional component has been mounted at the filter housing.

Functional component of a fluid filter, and fluid filter

A filter arrangement for liquids has a filter housing and a functional carrier arranged inside the filter housing. A cylindrical filter element is inserted axially into the filter housing and defines an unfiltered side and a filtered side inside the filter housing. A non-return diaphragm is secured within the filter housing, wherein the non-return diaphragm is arranged on the functional carrier so as to effect an axial and/or radial sealing action of the unfiltered side relative to the filtered side of the filter arrangement.

Liquid filtering device

Filter element or air filter in the configuration of a multiple bellows filter with an increased efficiency for use in internal combustion engines, wherein a folded filter bellows is arranged radially inwardly of another folded filter bellows and the inner folded filter bellows has a greater or deeper fold depth than the outer folded filter bellows.

Efficiency-improved multiple bellows filter

Air filter having a preseparator with an optimized intake geometry, wherein an outflow geometry of a preseparator is matched to an intake geometry of a filter element.

Air filter with preseparator

The invention concerns a filter insert () that is provided as an exchangeable insert in a filter, in particular an oil filter, fuel filter or the like of an internal combustion engine. The filter comprises a filter housing () that can be separated along a separating plane () and the exchangeable filter insert () extending in an axial direction (). Two housing parts () of the filter housing () are sealed relative to one another along the separating plane () by means of a seal (). The seal () is secured slidably and captively in the axial direction () on the filter insert ().

Exchangeable filter insert

A filtering device for filtering liquids in internal combustion engines has a filter housing and a filter element inserted into the filter housing. A cover disk closes off the filter housing. The cover disk consists of two individual disks and a central flow connection connects the two individual disks. The two individual disks and the flow connection form a common plastic component.

Filtering system, in particular for filtering liquids in internal combustion engines

A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, having a substantially cup-shaped housing with a concentrically disposed outlet opening for the filtered liquid and at least one inlet opening for the liquid to be filtered and a filter element sealingly disposed between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. A connector for releasably coupling the replaceable liquid filter to a mating part is disposed concentrically in the region of the cover plate, such that the connector extends axially beyond the contour of the replaceable liquid filter.

Liquid filter

A filter element () with a tubular folded bag () of folded filter material, which has a plurality of fold blades () adjacent each other in the longitudinal direction () of the folded bag () a closure cover () is attached at at least one axial end () of the folded bag (). In order to provide a filter element which can be bent to any desired curved form while maintaining a high degree of filtration performance, and can be produced in a cost effective manner, the fold blades () of a folded bag () are provided with a combination of diagonal folds extending at an angle relative to each other such that the fold blades () in the longitudinal direction () of the folded bag extend back and forth and thereby form a three-dimensional crown structure (). At least the outer margin of the closure cover () has a form corresponding to the crown structure () of the fold blades ().

Filter element

A liquid filter, in particular for the lubricating oil of an internal combustion engine, having a housing with an inlet and an outlet formed from a housing pot having a substantially downwardly open filter element installation opening and a screw-on cover that closes the installation opening, and a filter element arranged in the housing, sealingly separating the inlet from the outlet. The screw-on cover has a drain for residual liquid present in the housing with a round drain opening arranged in the central axis of the housing. A device for opening and closing the drain opening is arranged in the area of the drain and connected to an end disk of the filter element so that it moves relative to the drain opening and opens the drain when the cover is unscrewed.

A replaceable liquid filter, particularly for the lubricating oil of an internal combustion engine, including a substantially cup-shaped housing with a concentrically arranged outlet opening for filtered liquid and at least one inlet opening for the liquid to be filtered, and a filter element disposed in a sealing manner in the housing between the inlet opening and the outlet opening. The housing is connected to a top plate, and the top plate is connected to an end plate. The top plate encloses a displacement space which is disposed in an inlet chamber in the mating part, such that the inlet opening in the top plate is disposed in the region of the displacement space and/or a backflow check valve is disposed in the area of the outlet opening such that the backflow check valve is positioned axially outside the effective filter element surface.

Replaceable liquid filter

An apparatus for filtering a liquid, with a housing, a liquid inlet arranged in the housing, a liquid outlet arranged in the housing, a filter for removing particles from a liquid stream arranged between the liquid inlet and the liquid outlet, and at least one additive for functionally altering the liquid properties arranged in the apparatus, in which the additive is arranged in the interior volume of the apparatus and is shaped in a colloidally disperse, dimensionally stable, elastic form corresponding to at least one geometric space defined by an interior structure of the apparatus or of the filter for removing the particles.

Additive dispensing filter apparatus

A liquid filter, in particular for internal combustion engines, having a filter housing with an essentially hollow cylindrical filter element arranged therein in a sealing manner to separate an unfiltered liquid side of the filter from a filtered liquid side. The filter element is supported on a connecting element having contours for forming a form-fitting connection through which the liquid filter is detachably and sealingly connectable to a counterpart. The counterpart may be a flange connected directly to a machine assembly, or it may be an adapter element for adapting the form-fitting connection to connect to a conventional threaded connector.

Growing community of inventors

Mundelsheim, Germany

Markus Kolczyk