Mann+hummel Gmbh

Marcel Holzwarth

Pedro Miguel Pereira Madeira

Nadine Donauer

Torsten Fritzsching

Andreas Franz

Manfred Winter

Joachim-Paul Krieger

Martin Gruber

Daniel Schmid

Christoph Wittmers

Jerome Stiger

Michael Heim

Heinz Fuchs

Nadine Sorger

Thomas Schleiden

Juergen Kosicki

Frank Bartel

Christian Vogt

Florian Keller

Adriano Horiye

Matthias Weller

A hollow filter element for insertion into an openable filter housing has a filter medium body configured as a hollow body surrounding an inwardly positioned flow space. At least one end disk is connected to the filter medium body and covers an axial end face of the filter medium body. A positioning element is arranged at the at least one end disk and interacts with a housing-associated blade of the filter housing. The positioning element receives the housing-associated blade with form fit in two different transverse directions relative to the longitudinal axis of the filter medium body. The positioning element has a positioning recess.

Hollow filter element, in particular for gas filtration

A filter element for an air filter assembly of an engine includes a primary filter media and a secondary filter media. The primary filter media has a plurality of pleats having first fold edges on an inlet face of the primary filter media and second fold edges on an outlet face of the primary filter media. The first and second fold edges extend from a first lateral side to a second lateral side of the primary filter media. The secondary filter media is constructed of a non-woven material and includes a first portion arranged on the inlet face of the primary filter media, a second portion secured to the first lateral side of the primary filter media, and a third portion secured to the second lateral side of the primary filter media.

Filter element for an engine air filter assembly having a nonwoven pre-filter and related method

A filter element with at least one filter medium body and with a grip configured to hold and guide the filter element is provided. At least one locking element is arranged at the grip and configured to lock the filter element on a receiving filter housing. A filter device with such a filter element has a receiving filter housing to receive the filter element and a cover to secure the locking element in locked position on the filter housing.

Filter element, in particular for gas filtration

A hollow filter element, including: a filter medium () for filtering the fluid, the filter medium circumferentially surrounding an element interior space () in relation to an element axis (), forming a conical-oval round filter element; wherein the hollow filter element () includes: at least at one outer face facing away from the element interior space () at an end face (); at least one support element () configured to support the hollow filter element () at a housing-sided support section () of a filter housing (); and at least one fluid passage () arranged at the end face () in the center of the at least one support element (), the at least one fluid passage connected to the element interior space () for connecting a secondary fluid line connector () of a housing-sided secondary fluid line () and/or for receiving a housing-sided positioning dome ().

Hollow filter element, filter housing and filter

An annular filter element has a filter medium body configured to be flowed through by a fluid to be purified in a radial direction. A sealing element is arranged at the end face of the filter medium body and extends circumferentially around the end face. The sealing element has at least one first sealing section comprising a massive and large cross-sectional area and one or more second sealing sections with a cross-sectional area that is at least partially reduced in comparison to the large cross-sectional area. The one or more second sealing sections include a second sealing section with a groove-type recess, wherein the groove-type recess extends at least approximately across a length of the second sealing section with the groove-type recess or across a portion of said length.

Annular filter element, in particular for gas filtration

A filter element has a filter medium body enclosing an inwardly positioned flow space and having a center axis. A support frame is arranged at an inner side of the filter medium body. At least one circumferentially extending sealing ring lip is arranged at the filter medium body and projects axially in an axial direction relative to the center axis past an end face of the filter medium body. The sealing ring lip is designed to seal relative to a housing component of a receiving filter housing. A support ring is arranged at the end face of the filter medium body at a radial distance to the sealing ring lip in a radial direction relative to the center axis. The support ring is supported in the radial direction at the support frame and is formed as one piece together with the support frame.

Filter Element, in Particular for Gas Filtration, and filter device

The invention relates to a tank vent filter () that guides tank contents that have inadvertently reached the tank vent filter () through a downpipe () past a first filter () of the tank vent filter (). A contamination of the first filter () is thus prevented by means of a space-saving arrangement. The downpipe () and the first filter () are preferably arranged rotationally symmetrically around the longitudinal axis of the tank vent filter () in order to achieve an especially compact design of the tank vent filter ().

Tank vent filter with downpipe

A tank venting filter is provided with a housing extending in a direction of a longitudinal filter axis and provided with a bottom side and a topside opposite the bottom side. A filter element is arranged in the housing. The housing has an air inlet at the bottom side and an air outlet at the topside. The air inlet is provided in the housing transverse to the longitudinal filter axis. The housing has a housing bottom at the bottom side, wherein the housing bottom closes off a filter interior of the housing in a downward direction and is positioned at a spacing from the filter element. The housing bottom has an inner side facing the filter interior. The inner side ends in the air inlet and is positioned at least sectionwise at an obtuse angle relative to the longitudinal filter axis.

Tank venting filter

A tank venting filter is provided with a housing defining a longitudinal filter axis that is vertically oriented in operation. The housing has a top end and a bottom end and is provided with an air inlet at the bottom end and with an air outlet at the top end. The air outlet is connectable to a tank. The housing is provided with a constriction above the air inlet. A filter element is disposed in the housing and fluidically arranged between the air inlet and the air outlet. The filter element is provided with a first filter. The constriction has an opening cross-section surface area that is less than 40% of an opening cross-section surface area of the air inlet.

Tank venting filter having a constriction in the air inlet area

A filter element has a filter medium with a first end and a second end in an axial direction of the filter medium. A first end disk is connected to the first end and has an outflow opening. A second end disk is connected to the second end and has an engaging section, wherein the engaging section engages a counter engaging section of a filter housing of the filter element such that the filter element is received, secured against rotation, in the filter housing. The second end disk is provided with an aperture.

Filter element and filter assembly

An oil mist separator for separating aerosol oil from an oil-laden gas has an impactor. The impactor has a nozzle device with at least one nozzle for gas to be freed from oil, wherein the at least one nozzle has a streaming region. The impactor further has at least one deflector body having a separating region for the oil, wherein the separating region is positioned in the streaming region of the at least one nozzle. The separating region has a surface structure that is monolithically formed with the at least one deflector body. The surface structure has elevations and recesses arranged alternatingly in all directions transversely to a main streaming direction of the at least one nozzle.

Growing community of inventors

Fayetteville, NC, United States of America

Marcel Holzwarth