Mann+hummel Gmbh

Franziska Schulz

Mario Rieger

Pascal Neef

Werner Blossey

Sven Epli

Joachim-Paul Krieger

Martin Schmid

Gelase Mbadinga Mouanda

Manfred Winter

Johannes Lampert

Andreas Pelz

Alfons-Alois Schwinghammer

Michael Kolmeder

Gelase Mbadinga-Mouanda

Michael A Martin

Reinhard Oelpke

Oliver Luley

Bernd Burkhart

Torsten Hotop

Air filter system includes a main housing, in which a primary filter cartridge can operably be installed, the housing includes a clean air outlet and a service opening through which the primary filter cartridge can be installed, a pre-separator assembly mounted onto and closing off the service opening, the pre-separator assembly having an inlet flow face receiving air to be cleaned from the outside, an outlet flow face through which pre-cleaned air exits, the outlet flow face positioned over the service opening of the main housing, such that pre-cleaned air is provided to the main housing, a dust discharge port, through which particles pre-separated by the pre-separator can be discharged, wherein the main housing comprises a connection port operable to sealingly connect to the dust discharge port on one side and sealingly connect a scavenge line on the other side, the connection port operable to connect the dust discharge port and a scavenge line.

Inline filter system having a pre-separator module

An air filter element () for insertion into an air filter housing, comprising an intake surface (), a discharge surface (), a filter medium (), and a filter element-retaining device () which extends along at least a section of the periphery of the filter medium (), between the intake surface () and the discharge surface (), and which includes a retaining arrangement () that radially projects from the filter medium ().

Air filter element with retaining geometry

A filter () for filtering fluid, in particular air, water, fuel, oil, or urea-water solution, in particular of an internal combustion engine, in particular of a motor vehicle, a multiple-bellows hollow filter element (), a filter housing () of a filter (), and a seal () of a hollow filter element () are described. The filter () comprises at least one filter housing (), which comprises at least one inlet () for fluid to be filtered and at least one outlet () for filtered fluid. At least one hollow filter element, in particular a multiple-bellows hollow filter element () can be arranged in the at least one filter housing () such that it separates the at least one inlet () from the at least one outlet (). The at least one filter housing () comprises at least one first housing part () having at least one installation opening () for the at least one hollow filter element (), which can be closed using at least one second housing part (). The at least one hollow filter element () comprises at least one filter bellows (), which comprises at least one filter medium (), through which flow can occur for filtering of the fluid. The at least one filter bellows () at least partially delimits at least one element interior (). An element axis () of the at least one hollow filter element () extends coaxially, axially, or in parallel in relation to an installation/removal axis of the at least one hollow filter element (), in relation to which the hollow filter element () can be installed in the filter housing () and removed from the filter housing () through the at least one installation opening () in parallel, axially, or coaxially.

Filter, hollow filter element, and filter housing of a filter, and seal of a hollow filter element

A hollow filter element, in particular a multiple-bellows hollow filter element () of a filter () for filtering fluid, in particular air, water, fuel, oil, or urea-water solution, in particular of an internal combustion engine, in particular of a motor vehicle, a filter (), a filter housing () of a filter (), and a seal () of a hollow filter element () are described. The hollow filter element () comprises at least two filter bellows (), which each comprise at least one filter medium (), through which flow can occur for filtering of the fluid. The at least two filter bellows () at least partially delimit at least one element interior (). The hollow filter element () comprises at least one end body () on an axial front and/or rear end side () of the hollow filter element () with respect to an element axis (). The hollow filter element () comprises at least one seal (), which is arranged at least partially circumferentially with respect to the element axis () in the region of at least one of the end sides () of the hollow filter element (). The at least one seal () comprises at least one partially circumferential radial outer and/or radial inner seal section (), which can cooperate with at least one corresponding sealing surface () of a filter housing () of the filter () to form a radial seal with respect to the element axis ().

Hollow filter element of a filter for filtering fluid, filter, filter housing, and seal of a hollow filter element

Disclosed is an air filter element () for insertion into an air filter housing, comprising an intake surface (), a discharge surface (), a filter medium (), and a filter element-retaining device () which extends along at least a section of the periphery of the filter medium (), between the intake surface () and the discharge surface (), and which includes a retaining arrangement () that radially projects from the filter medium ().

Air filter element having a specific retaining geometry

A filter device for cleaning a gas flow has a hollow cylindrical pre-separator on whose outer side guide vanes are arranged. At least a portion of the guide vanes is provided with a rib that protrudes over the guide vane surface.

Cyclone filter device

A filter element has a support grid structure with a first axial end and a second axial end. A filter medium surrounds annularly the support grid. The support grid has structural web members that are connected and form a hollow-cylindrical grid structure that surrounds a cylindrical interior. At least three of the structural web members or structural web sections connect to each other to define a through opening. A fluid flow is enabled in radial direction relative to a center axis of the hollow-cylindrical grid structure through the through openings. A first average opening cross-section of the through openings in a first region adjacent to a first axial end is greater than a second average opening cross-section of the through openings in a second region adjacent to the second axial end.

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Schifferstadt, Germany

Franziska Schulz