Mann+hummel Gmbh

Steffen Ackermann

Ralf Bauder

Klemens Dworatzek

Volker Greif

Duc Cuong Nguyen

Michael Kraxner

Ulrich Muschelknautz

Klaus-Dieter Ruhland

Michael Kaufmann

Stefan Becker

Dennis Stark

Fabian Maier

Karlheinz Münkel

Oliver Luley

Andrew Glynn

Stefan Diersch

Chowalloor Rapheal Antomon

Suresh Aragbatagangapa Eswarapa

Suresh Aragbatagangapa Eswarapa (age)

Joachim Stinzendörfer

Jessica Wetzel

Julian Buechler

Lijith Sathyanathan

Christopher Jeblick

Mike Märtz

Susanne Lehnert

Julian BÜCHLER

An air filter has a round housing that is coaxial to a central axis of the air filter. The housing has a housing bottom part and a detachable housing cover. A round filter element is received in the housing. The housing bottom part has a tubular housing wall with an open end and an outlet-side axial end provided with a central outlet socket positioned axially opposite to the open end. Through the outlet socket, air exits from the air filter after filtration. The housing cover closes off the open end. A raw air region with annular cross section is formed between round filter element and inner side of the tubular housing wall. The housing cover has an annular or ring section-shaped air inlet region with inflow openings through which air to be filtered enters the housing without deflection in a direction coaxially or parallel to the central axis.

Air filter with minimal pressure loss

A modular filter system () for cleaning of gaseous fluid has at least one housing module () with at least one support () in which at least one filter element () is arranged and at least one duct for the gaseous fluid on the clean side of the at least one filter element (). At least one housing module () has at least one housing frame part () which comprises at least one support section (). The at least one support section () is suitable for realizing at least one support (). The at least one housing frame part () has at least one duct section (). The at least one duct section () is suitable for realizing at least one duct or duct part (). The at least one housing frame part () can be applied in the housing module () such, that its at least one support section () can form at least one support () and/or its at least one duct section () can form at least one duct.

Modular filter system, housing frame part of a modular filter system, filter module and housing module

A centrifugal-force separator for separating particles from a fluid has a housing having an inflow opening and an outflow opening. An axial core and a plurality of guide blades connected to the axial core are provided, wherein the axial core and the guide blades are disposed in the housing. The guide blades generate a turbulent flow of a fluid flowing in through the inlet opening into the housing in an inflow direction. The guide blades extend radially between a first helical line at the axial core and a second helical line at a housing wall of the housing. A first pitch of the first helical line is greater than a second pitch of the second helical line.

Centrifugal-force separator and filter arrangement having a centrifugal-force separator of said type

A centrifugal separator for separating particles from a fluid has a housing with an inflow opening and an outflow opening. Guide blades that generate a turbulent flow in a fluid flowing into the housing through the inlet opening are provided. The guide blades each have a leading edge. The leading edge of a first guide blade has a first spacing to a cross-sectional plane of the housing and the leading edge of a second guide blade has a second spacing relative to the cross-sectional plane of the housing, wherein the cross-sectional plane is perpendicular to an inflow direction of the fluid. The first spacing and the second spacing are different from each other. The first and second guide blades each have a length and the lengths differ from each other. Several centrifugal separators can be combined to a filter device.

Centrifugal separator and filter arrangement having a centrifugal separator of said type

A cyclone separator () for separating particles from a gas flow, includes: a first housing component () with a guiding apparatus () for providing the inflowing gas flow with an angular momentum, a second housing component () with an immersion tube () through which the cleaned gas flow can be discharged, and a cyclone tube () which surrounds the immersion tube () and on which at least one opening () is formed for discharging the particles that are separated from the gas flow. The cyclone tube () is formed on the second housing component ().

Two-part cyclone separator

A filter device () for an internal combustion engine includes a separator that is embodied as a cyclone preseparator (), a main filter element () exchangeably arranged in a housing compartment () of the filter housing (), and a secondary filter element (. The housing compartment () includes insertion stays (). The main filter element () is embodied in as a double bellows filter including a first radially inwardly positioned filter bellows () and a second radially outwardly positioned filter bellows () surrounding it. Upon closing of a servicing housing cover () a sealing force is generated that acts onto the main filter element () and is maintained in the closed state of the servicing cover ().

Filter mechanism for internal combustion engines

Air filter

A filter element () for fluid filtration has a hollow-cylindrical filter medium () folded in a star shape, an outlet-side end plate () and a second end plate (), a hollow-cylindrical supporting mesh () disposed in the interior () of the filter medium, wherein at the outlet-side end of the filter element, the supporting mesh has a connecting region () in which the supporting mesh () is provided with a coupling element (). In the connecting region () the supporting mesh () includes a radially outwardly projecting collar () protruding beyond the outlet-side end face () of the filter medium. The outlet-side end plate () encloses the outlet-side end face () of the filter medium () and the collar () and has an annular axial seal ().

Filter element for fluid filtration, in particular for intake air of internal combustion engines

In a filter element () having a filter bellows () which is covered at each end by an end disk (), the end disks () are each provided with at least one coupling element for coupling to a filter housing () and connected to one another via at least one central tube () spanning the filter bellows (). Alternatively, a central tube which runs right through and onto which end disks and filter bellows are pushed and which is configured at its ends for coupling with parts of the housing is present.

Air filter unit having a radially divided housing

The invention relates to a filter device (), in particular for filtering intake air of an internal combustion engine. The filter device () comprises a separator that is embodied in particular as a cyclone preseparator (), moreover a main filter element () exchangeably arranged in a housing compartment () of the filter housing (), as well as a secondary filter element () that in the flow direction of the fluid to be cleaned is arranged downstream. The housing compartment (), for facilitating premounting of the main filter element () therein, comprises insertion stays (). The main filter element () is embodied in particular as a double bellows filter, comprising a first radially inwardly positioned filter bellows () and a second radially outwardly positioned filter bellows () surrounding it. Upon closing of a servicing cover () that closes the housing compartment () a sealing force is generated that acts onto the main filter element () and is maintained in the closed state of the servicing cover ().

A filter is disclosed that includes a filter cup, a filter insert inserted into the filter cup and having a substantially cylindrical shape and a terminal disk arranged at an end face of the filter insert and connected to an end of the filter cup. The terminal disk includes a circumferential rim configured to engage the end of the filter cup and is provided with locking means that positive-lockingly connects the terminal disk and the filter cup.

Filter

To be able to insert a cylindrical filter element () which is joined at each end to an end disk () quickly into a housing element () in a filter unit () and connect it firmly, a screw connection having conical threads () on the filter element () and on the bottom of the housing () is provided.

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Speyer, Germany

Steffen Ackermann