Filterwerk Mann + Hummel Gmbh

Mann+hummel Gmbh

Other

Mann + Hommel Gmbh

Stefan Maier

Robert Vaculik

Thomas Jessberger

Arthur Klotz

Rudolf Leipelt

Timo Dirnberger

Andreas Weber

Holger Paffrath

Frank Pfeiffer

Sascha Bauer

Herbert Pietrowski

Markus Beylich

Robert Zbiral

Jan A Karlsson

Christoph Baumann

Achim Rehmann

Hans-Peter Scholl

Alex Braithwaite

Volker Hueppmeier

Ulrich Huengsberg

Daniel Hoppmann

Steffen Holtz

Hans-Juergen Isensee

Stefan Weiss

Kai Mierau

Michael Willig

Marcus Weber

A venting device for a housing, for example, a battery housing, has a gas-permeable and liquid-impermeable membrane attached to the housing so as to close off a venting opening of the housing. The membrane has a membrane section that overlaps and covers the venting opening. The membrane section has a predetermined bursting pressure. The membrane section deforms without being destroyed when pressure differences between the interior of the housing and the environment occur that are below the bursting pressure and when gas passes through the membrane section.

Venting device for a housing and method for producing same

A retention assembly secures a hydrocarbon trap within an air intake path of an internal combustion engine. The hydrocarbon trap is positioned within a first air tube, such as an outlet duct of a clean air filter. A second air tube, such as an inlet portion of a clean air duct assembly, is fitted over a portion of the first air tube to enclose the hydrocarbon trap within the first air tube. A clamp is fitted over both the first and second air tubes. A plurality of radially-extending, circumferentially-spaced protrusions that are formed on an inner surface of the second air tube pass through a respective plurality of apertures formed in the first air tube and, under radial compression exerted by the clamp, engage an outer surface of the hydrocarbon trap, thereby securing the trap within the first air tube.

Retention assembly for a hydrocarbon trap

An air filter, particularly an air filter for an internal combustion engine, having a housing with an unfiltered air inlet and a filtered air outlet. A round filter element is sealingly disposed between the unfiltered air inlet and the filtered air outlet. In addition, an adsorber element provided with adsorbent particles is disposed on an interior wall of the housing such that the adsorber element is arranged within the round filter element.

Air filter

A duct system suitable for use as an intake manifold for an internal combustion engine, including flap valves ( ) for selective opening and closing of the ducts. The positions of the valves are continuously adjustable in order to produce a swirl in the flow of combustion air. To achieve this, a high degree of angular precision is required in the positioning of the valves. Intake manifold manufacturing tolerances need to be compensated during assembly of the valves. A valve adjusting mechanism is provided in mechanical couplings ( ) of the valve linkage between the position adjusting motor ( ) and the flap valves ( ).

Port system, especially an induction manifold for an internal combustion engine

A flap mechanism includes elements for compensating tolerances and shrinkage of the flap. The compensating elements include a flap edge which is applied to the flap by assembly injection molding after the flap has cooled, thereby decreasing any gap produced between the flap and a surrounding frame by shrinkage of the flap. In addition the flap has a flap shaft which can be journaled in the frame through a conical region on the shaft such that axial shrinkage of the shaft to produce a mounting which is free of play. This construction makes it unnecessary to use additional sealing elements at the mounting locations of the flap, and the flap is also prevented from vibrating in its mounting which, in a worst case scenario, could lead to destruction of the flap.

Flap mechanism

An insert filter for cleaning a gas stream, particularly for the intake air of an internal combustion engine or an air-conditioning unit, which includes a filter frame , a filter element placed in the filter frame , and a shaft cover and which is placed in the shaft of a duct system that guides the gas stream such that an unfiltered side is separated from a clean side by the filter element and the filter frame . The shaft cover closes a shaft opening through which the insert filter is inserted in the shaft . The filter frame is connected to the shaft cover so that the filter frame can be removed from the shaft without any need for additional removal aids by simply pulling on the shaft cover

Insert filter

A duct system, especially an intake manifold for an internal combustion engine, having flap valves ( ) for selective opening and closing of at least some of the ducts. The valves should be continuously adjustable in position in order to produce a swirl in the combustion airflow. To achieve this a high degree of angular precision is required in the positioning of the valves. Intake manifold manufacturing tolerances need to be compensated during assembly of the valves. Valve adjusting mechanisms are provided on the axles of the valves or in the mechanical connections of the valve gear pertaining to the valve drive mechanism.

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Besigheim, Germany

Stefan Maier