Mann+hummel Gmbh

Michael Metzger

Thomas Jessberger

Arthur Sudermann

Guenter Goerg

Bernd Joos

Fabian Wagner

Timo Dirnberger

Thomas Sieber

Markus Roehrig

Calogero Colletto

Markus Hanselmann

Frank Pfeiffer

Andreas Weber

Volker Kuemmerling

Bjoern Schmid

Achim Janner

Bernhard Gau

Joerg Maier

Naihe Shen

Stefan Walz

Ralf Dietz

Johannes Stuerner

Armin Ludmann

Andreas Link

Ettore Nocera

Günter Görg

Alexander Seifert

Björn Schmid

Maier Jörg

Markus Röhrig

Volker KÜMMERLING

An air duct of an internal combustion engine has an inner pipe providing a flow channel and a housing with a first housing part and a second housing part, wherein the inner pipe is arranged in the housing. The first housing part and the second housing part enclose a chamber between the inner pipe and the housing. The inner pipe has at least one section with perforations in a wall of the inner pipe, wherein the perforations completely penetrate the wall of the inner pipe. A cylindrical acoustic component at least partially encloses the at least one section of the inner pipe at an outer side of the inner pipe. A wall of the cylindrical acoustic component is provided, at least in sections thereof, with continuous openings. The flow channel is acoustically connected via the perforations and via the continuous openings to the chamber.

Air duct of an internal combustion engine

A filter housing has a first housing part with a first rim section and a second housing part with a second rim section. The housing parts can be joined and separated from each other in axial mounting direction and define a housing interior for a filter element provided with a circumferentially extending sealing element. The first and second rim sections form a receiving area in which the sealing element is seal-tightly clamped radially between the first and second rim sections when the housing parts are joined in the mounted state. A snap connecting device axially braces the first and second housing parts relative to each other. The snap connecting device is formed integrally on the first and second housing parts such that a clamping force applied by the first and second rim sections on the sealing element in radial direction is decoupled from the snap connecting device.

Filter arrangement

A method for producing a filter element provided with a sealing part in which the sealing material is introduced into a casting chamber between two tundish parts when in the non-cured state, and a compensation space connected to the casting chamber for the expansion of the sealing material.

Method for producing a filter element provided with a sealing part

An air filter housing for intake air of an internal combustion engine has a housing pot having a housing wall and a receiving opening. The receiving opening is delimited circumferentially by a free rim section of the housing wall. Through the receiving opening, an air filter element with circumferential radial sealing element is insertable into the housing pot and a housing cover closes off the housing pot. The radial sealing element, when the air filter element is inserted into the housing pot, projects radially outwardly past the free rim section and seals housing cover and housing pot relative to each other. The housing pot is provided externally with a stop that limits axial deformation of the radial sealing element relative to the free rim section of the housing wall when the housing cover is placed onto the housing pot.

Air filter housing and air filter for an air intake conduit of an internal combustion engine

The invention relates to a filter unit for filtering gaseous fluids, comprising a filter insert part with a filter medium and a sealing element, said element being clamped between sealing struts on parts of the filter housing. The clamping force produced by the sealing struts that lie opposite one another runs at least approximately perpendicularly to the mounting direction of the housing parts.

Filter unit for filtering gaseous fluids

For a method for producing a filter element provided with a sealing part, wherein the sealing material is introduced into a casting chamber between two tundish parts when in the non-cured state, a compensation space connected to the casting chamber is provided for the expansion of the sealing material.

An adsorption unit for combustion gas of an internal combustion engine has an adsorption housing having a chamber section with an inner wall. An adsorption element disposed in the adsorption housing is made of a gas-permeable adsorption medium that is formed to a hollow body and encloses an interior of the adsorption element. The hollow body has opposed open ends. A main flow passage extends through the hollow body and the combustion gas flows in main flow direction through the hollow body. The adsorption element has an exterior circumferential side facing away from the interior and delimiting together with the inner wall of the chamber section a bypass chamber surrounding the absorption element outwardly. In the main flow direction, the bypass chamber has a downstream end that is closed off and an upstream end that has at least one bypass opening that communicates with the main flow passage.

Adsorption unit and absorption muffler of an intake manifold of an internal combustion engine

An intake device of an internal combustion engine has primary and secondary intake lines for aspirating primary and secondary combustion air, respectively. The primary intake line opens into a primary inlet chamber and the secondary intake line opens into a secondary inlet chamber of a filter housing. In comparison to the primary intake line, the secondary intake line has a configuration such that, in normal engine operation, a flow capacity of the secondary intake line, in comparison to a flow capacity of the primary intake line, is so minimal that secondary combustion air aspirated through the secondary intake line has a negligible effect on the performance of the internal combustion engine. When the primary intake line is closed, the flow capacity of the secondary intake line suffices to supply the internal combustion engine with a minimum combustion air mass flow required for operating the internal combustion engine.

Intake device of an internal combustion engine

A filter housing has first and second housing parts connected to each other to be openable and secured by a latching element. The latching element is connected to the first housing part by a moveable connection with a predetermined breaking point and is pivotable by the movable connection into the closed state. The latching element has two positioning elements and the housing parts have counter positioning elements. In the closed state, the counter positioning elements are axially arranged between the two positioning elements and the positioning elements form a stop for the counter positioning elements. The latching element has an element locking section locking at a housing locking section on the first or second housing part. The predetermined breaking point is subjected to mechanical stress such that the predetermined breaking point breaks upon locking or release of the latching element.

Filter housing with replaceable latching element having pre-determined breaking point

The invention relates to a filter device for filtering gaseous fluids that is provided with a filter insert part that includes a filter medium and a sealing element, wherein the filter insert part is to be inserted into a filter housing. Furthermore, an additional sealing web is provided between the sealing body of the sealing element and the housing part, wherein the sealing element has a common contact surface with the sealing web, wherein the sealing web is offset in the direction of the clean side of the filter medium with respect to the contact surface.

Filter device for filtering gaseous fluids

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Waiblingen, Germany

Michael Metzger