Mann+hummel Gmbh

Itt Cannon, Ltd.

Hitachi, Ltd.

Itt Manufacturing Enterprises, Inc.

Robert Hasenfratz

Christian Thalmann

Fabian Wagner

André Roesgen

Frank Pflueger

Pascal Neef

Mario Rieger

Werner Blossey

Andreas Weber

Nadine Sorger

Daniel Schmid

Martin Schmid

Christoph Wittmers

Michael Heim

Matthias Krohlow

Thomas Jessberger

Pedro Miguel Pereira Madeira

Dieter Schreckenberger

Nadine Donauer

Joerg Menssen

Michael Harenbrock

Gelase Mbadinga-Mouanda

Petra Skorpíková

Leos Burda

Martin Sonntag

Timo Dirnberger

Hiromu Kikawa

Sascha Bauer

Duc Cuong Nguyen

Mike Schmid

Markus Nefzer

Michal Tuma

Steffen Pfannkuch

Vit Wognar

Torsten Fritzsching

Andreas Franz

Stefan Walz

Arthur Sudermann

Masayuki Kozawa

Thomas Sieber

Manfred Illg

Gelase Mbadinga Mouanda

Werner Biermann

Michael Kolmeder

Martin Gollhofer

Eric Thebault

Werner Pfitzenreiter

Frank Pflüger

Marcel Hofmeister

André Rösgen

Jürgen Lang

Jörg Menssen

An air filter has a filter housing having a raw air inlet and further has a filter element arranged in the filter housing. The filter element has a filter medium body and an end disk with a central primary air passage and a secondary air passage. The filter medium body annularly surrounds a longitudinal axis of the filter element and separates a raw side in the filter housing from a clean side inside the filter element. The filter housing has a primary air outlet communicating through the primary air passage with the clean side of the filter element. The filter housing has a secondary air outlet communicating through the secondary air passage with the clean side of the filter element. The secondary air outlet communicates with the secondary air passage through a channel arranged at the filter element, wherein the channel surrounds the primary air passage annularly and coaxially.

Air filter comprising a primary air outlet and a secondary air outlet and filter element for same

A filter device for treating fluids, in particular for filtering fluids such as fuel, oil, or water, has a housing () with a housing pot (), a housing cover (), at least one inlet () for the fluid to be treated, and at least one outlet () for the treated fluid. A connecting head () has at least one feed () for the fluid to be treated and connectable to the at least one inlet (), and/or at least one discharge (). The connecting head () and the treatment element () can be connected to each other by means of a releasable bayonet-type connecting device () through the execution of a rotational/plug-in movement about a connecting axis () of the treatment device ().

Treatment device for treating fluids, in particular liquid fluids, and treatment element of treatment device

A filter element for filtration and dehumidification of a gas has at least one filter medium body with an outflow side delimiting a clean-side flow chamber. A dehumidification unit is arranged downstream of the at least one filter medium body in a flow direction of the gas in the clean-side flow chamber. A carrier body accommodates the at least one filter medium body and the dehumidification unit. The dehumidification unit is connected flow-tightly to an outflow opening of the clean-side flow chamber. The dehumidification unit is arranged in the clean-side flow chamber at a spacing relative to the at least one filter medium body.

Filter element for filtration and dehumidification of a gas

A filter element has a filter medium folded in a star shape that surrounds annularly a longitudinal axis of the filter element and is flowed through radially from exterior to interior. The filter element has a primary air passage and a secondary air passage. In the filter medium, a cutout is formed that penetrates a plurality of folds of the filter medium. A passage socket at which the secondary air passage is formed extends through the cutout. An air filter provided with a filter housing having a raw air inlet, a primary air outlet, and a secondary air outlet, has such a filter element that separates in the filter housing a raw side communicating with the raw air inlet from a clean side. The primary air outlet communicates through the primary air passage and the secondary air outlet through the secondary air passage with the clean side, respectively.

Air filter with a primary air outlet and a secondary air outlet as well as filter element therefor

A round filter element is provided with an elongate filter medium body with a wall structure flowed through by a fluid to be purified in a flow direction radially relative to a longitudinal axis of the filter medium body. A seal support for a sealing element is arranged adjacent to a radially outwardly positioned outer wall of the wall structure of the filter medium body and adjacent to an end face of the filter medium body. The seal support has across a major portion of its circumference a constant radial spacing relative to the outer wall of the wall structure of the filter medium body. The seal support has at least one radially inwardly oriented indentation located at a longitudinal side of the filter medium body and provided with a reduced radial spacing relative to the outer wall of the wall structure of the filter medium body.

Round filter element, in particular for gas filtration

A filter device includes in a filter housing a hollow cylindrical filter element having frontal end plates, a flow opening being made in one of the end plates. In order to interlockingly secure a pipe connection piece that communicates with the flow opening, a cover has a radial collar which forms an axial stop for the pipe connection piece.

Filter device, in particular liquid filter

A filter element () is provided with open filter body () of a filter medium (). The filter element () has at least one longitudinal mating surface () which is directed with at least one direction component axially to an element axis () of the filter element () and which is in contact with a corresponding longitudinal mating surface of the filter housing () for securing the filter element () axially to the element axis (). The filter element () has at least one transverse retaining surface () which is directed with at least one direction component across the element axis (). The transverse retaining surface () is separated from the at least one longitudinal retaining surface () and may be in contact with a corresponding transverse mating surface () of the filter housing () for securing the filter element () across the element axis ().

Filter element with retaining surfaces, filter with a filter element and filter housing of a filter

A filter system () has at least one filter element (), a filter housing () having at least one first housing part and one second housing part, in particular a lid (), as well as a coupling device (). The coupling device () thereby has at least one first coupling part () and at least one second coupling part () that corresponds to it for removable coupling of the at least one filter element () to the second housing part (). The first coupling part () has one or a plurality of first latching means () and control surfaces (). The second coupling part () has one or a plurality of second latching means () that can be brought into operative connection with the one or a plurality of first latching means () and control surfaces (). At least the first and the second latching means () can be brought into functional connection when joined, and the control surfaces () and the second latching means () can be brought into operative connection when first and second housing parts () are released. The second latching means () each have three bevels (), at least two of which work together with the control surfaces () to release the second housing part () from the filter element () upon a relative rotation of the filter element () around the longitudinal axis (L) counter to the second housing part ().

Filter system and filter element

A filter device has a cup-shaped filter housing and a filter element disposed in the filter housing. A filter head is connectable to the filter housing and forms a cover for the filter housing. A spring element is provided that is acting on the filter element. The filter head has at least one first form-fit element. The filter housing has at least one second form-fit element for interacting with the at least one first form-fit element. The spring element is arranged such that the filter head and the filter housing for reaching a closed position, in which the at least one first form-fit element and the at least one second form-fit element engage each other, are movable relative to each other axially against the force of the spring element. The spring element clamps the filter element axially between filter head and filter housing in the closed position.

Filter housing with locking form-fit elements and spring loading a filter element in the housing

A filter device includes in a filter housing a hollow cylindrical filter element having frontal end plates. A port having a first sealing element is incorporated into a cover the filter housing, said sealing element being arranged coaxially relative to a second sealing element in a flow opening in the end plate.

A filter element is provided with a filter bellows that has an inflow side and an outflow side for a fluid to be filtered, wherein the filter bellows is made of a zigzag-folded filter medium with folds with fold edges. The inflow side is defined by the fold edges of the folds of the zigzag-folded filter medium at the inflow side and the outflow side is defined by the fold edges of the folds of the zigzag-folded filter medium at the outflow side. At least one filter element holding device is provided that holds the filter element in a filter housing. The at least one filter element holding device is connected directly or indirectly with the filter bellows. At least one supporting element supports the filter element in the filter housing; the at least one supporting element is separate from the at least one filter element holding device.

Filter element having supporting elements, filter having a filter element, and filter housing of a filter

Growing community of inventors

Waiblingen, Germany

Robert Hasenfratz