Mann+hummel Gmbh

Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Filterwerk Mann + Hummel Gmbh

Universitaet Stuttgart Institut Fuer Flugzeugbau

Josef Rohrmeier

Mario Rieger

Stefan Becker

Werner Blossey

Jochen Linhart

Stefan Walz

Thomas Sieber

Klaus Gehwolf

Sven Epli

Andreas Pelz

Dieter Amesoeder

Matthaeus Huber

Manfred Winter

Michael Heim

Markus Kolczyk

Joachim-Paul Krieger

Michael Wolf

Anton Kreiner

Olaf E Weber

Gelase Mbadinga Mouanda

Norbert Strassenberger

Johannes Lampert

Frank Pfeiffer

Nikolaus Moser

Andreas Beck

Jobst Eisengraeber-Pabst

Daniel Volkmer

Wolfgang Wenzel

Karlheinz Münkel

Alfons Alois Schwinghammer

Tanja Majer

Ralf Poh

Michael Durst

Michael Geiger

Andrés Moreno Linares

Frank Pflüger

Jobst Eisengräber-Pabst

Jens Sohnemann

Michael Wank

Jens Hähn

Jan Zink

Klaus Drechsler

Dieter Amesöder

Stephan Wild

Johann Rackerseder

Rainer Kehrle

Thomas Zink

Tobias Tandetzki

Yassine Maaradji

Gerhard Weindl

Joachim Stinzendörfer

Rolf Sanders

Anton Rabanter

Claudia Hueppchen

Claudia Hüppchen

Aude Nicolas

Yves Klett

Joachim Montnacher

Jobst Eisengräber-pabst

Matthäus Huber

Susanne Klupski

A device for producing a bellows from a filter medium, including: an embossing device embossing fold lines into a filter medium that runs through the embossing device, producing an embossed filter medium for folding into a folded filter medium; the folded section of the filter medium being delimited by two adjacent fold lines; an adhesive application device applying adhesive onto the embossed filter medium; and a folding device folding, in a zig-zag manner, the embossed filter medium onto which the adhesive was applied into the folded filter medium; wherein the folding device includes a plurality of adjacent supporting elements that can be moved into or out of a folding space of the folding device; wherein the supporting elements are movable into the folding space such, that at least one folded section of the folded filter medium is contacted and supported by a respective one of the plurality of supporting element.

Apparatus and method for producing a bellows

A filter device has a compact filter made of a filter material that is wound spirally. A star filter that is made of a filter material that has folds arranged in a star shape surrounds the compact filter. The filter device has a cylindrical shape. A fluid to be filtered passes the compact filter in an axial direction and the star filter in a radial direction. The filter device is exchangeable and is mounted in a filter housing such that the compact filter and the star filter have a common raw side and a common clean side that are separated from each other.

Filter device

A compact filter has a compact filter element for exchangeable use in a filter housing and the compact filter element has a filter body of a web-shaped filter medium. The web-shaped filter medium has at least one flat filter medium web and one corrugated filter medium web that are placed onto each other and at least partially connected to each other by ultrasonic welding. At least one of the flat and corrugated filter medium webs is a composite filter medium web of at least two components, wherein at least one component is a synthetic material and one component is a non-synthetic material. The non-synthetic material is a plant-derived material and forms a support of the composite filter medium web and the synthetic material is a synthetic layer applied on the support.

Compact filter, method for producing a compact filter, and filter medium

In a method for manufacturing a filter end disc (), for example for a fluid filter () of a motor vehicle, a first plastic molding material (M) and a second plastic molding material (M) are injected in succession into a tool mold () in a monosandwich method or co-injection method in such a way that the second plastic molding material (M) is substantially surrounded by the first plastic molding material (M). To manufacture a fluid filter, the filter end disc () is further irradiated by a radiation beam (L) having pre-determined beam characteristics for melting the first plastic molding material (M), and a filter material () is applied to the at least partially melted first plastic molding material (M). A filter end disc (), in particular for a fluid filter () of a motor vehicle, said disc being manufactured according to a monosandwich method or co-injection method, comprises a first outer plastic molding material (M) and a second inner plastic molding material (M). In the process, the second plastic molding material (M) is surrounded by the first plastic molding material (M) and the first plastic molding material (M) is impermeable to water and/or water vapor.

Method for manufacturing a filter end disc and a fluid filter, filter end disc

A method for producing a tight joint between a multi-layer synthetic resin material and a filter medium by selectively melting a layer of the synthetic resin material which has a different thermal absorption capacity in comparison with the other layers by heating the synthetic resin material with infrared radiation, and then fusing the melted synthetic resin layer to the filter medium. A filter element produced by the method of the invention is also disclosed.

Method of producing a tight joint between a multi-layer synthetic material and a filter medium

An oil filter unit for arrangement in the oil sump of an oil circuit, particularly in an automatic transmission. The oil filter unit has a multi-part filter housing with a filter chamber disposed therein such that an oil inlet and an oil outlet communicate with the filter chamber. A filter element is sealingly mounted in the housing between the oil inlet and the oil outlet. The filter element has a pleated filter medium, which is sealingly enclosed by a frame, and the frame has seal contours designed to cooperate with the contours of the filter housing.

Oil filter unit

An adsorption element for adsorbing gases and vapors from the gaseous atmosphere in the intake tract of an internal combustion engine. The adsorption element is disposed within a wall of a flow cross section carrying the intake air, has a planar adsorption medium along which the intake air flows, and is pleated to create folds in longitudinal direction of the intake stream.

Adsorption element

A filter element () wound from a plurality of filter layers in which the circumferential contour (') of a cross-sectional area () of the filter element () has at least one circumferential contour section (&#x2032;) undercutting the envelope contour (&#x2032;) of the cross-sectional filter element area ().

Wound filter element

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 method for the manufacture of filters in which a filter material in the rm of a continuous web is pre-embossed, perforated with a laser beam, and then pleated. The pleated filter element is fixed in a subsequent operation in an apparatus and the perforated scrap areas and are removed from the filter element.

Method of manufacturing filters

Growing community of inventors

Laberweinting, Germany

Josef Rohrmeier