WO2014202359A1 - Élément de filtre creux, boîtier de filtre et filtre - Google Patents

Élément de filtre creux, boîtier de filtre et filtre Download PDF

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Publication number
WO2014202359A1
WO2014202359A1 PCT/EP2014/060970 EP2014060970W WO2014202359A1 WO 2014202359 A1 WO2014202359 A1 WO 2014202359A1 EP 2014060970 W EP2014060970 W EP 2014060970W WO 2014202359 A1 WO2014202359 A1 WO 2014202359A1
Authority
WO
WIPO (PCT)
Prior art keywords
filter
housing
filter element
hollow
axis
Prior art date
Application number
PCT/EP2014/060970
Other languages
German (de)
English (en)
Inventor
Marcel HOLZWARTH
Nadine SORGER
Pedro Miguel Pereira Madeira
Original Assignee
Mann+Hummel Gmbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/017,767 external-priority patent/US9726123B2/en
Application filed by Mann+Hummel Gmbh filed Critical Mann+Hummel Gmbh
Priority to BR112015030223-8A priority Critical patent/BR112015030223B1/pt
Priority to CN201480035077.0A priority patent/CN105283659B/zh
Publication of WO2014202359A1 publication Critical patent/WO2014202359A1/fr
Priority to US14/969,373 priority patent/US10837414B2/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02475—Air cleaners using filters, e.g. moistened characterised by the shape of the filter element
    • F02M35/02483—Cylindrical, conical, oval, spherical or the like filter elements; wounded filter elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0002—Casings; Housings; Frame constructions
    • B01D46/0005—Mounting of filtering elements within casings, housings or frames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0039—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices
    • B01D46/0041—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with flow guiding by feed or discharge devices for feeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/009—Identification of filter type or position thereof, e.g. by transponders or bar codes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B01D46/2414—End caps including additional functions or special forms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings
    • F02M35/0203—Manufacturing or assembling; Materials for air cleaner housings by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0204—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof for connecting or joining to other devices, e.g. pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F02M35/02425—Support structures increasing the stability or stiffness of the filter element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02416—Fixing, mounting, supporting or arranging filter elements; Filter element cartridges
    • F02M35/02433—Special alignment with respect to the air intake flow, e.g. angled or in longitudinal flow direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/024—Air cleaners using filters, e.g. moistened
    • F02M35/02441—Materials or structure of filter elements, e.g. foams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2265/00—Casings, housings or mounting for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2265/02—Non-permanent measures for connecting different parts of the filter
    • B01D2265/024—Mounting aids
    • B01D2265/026—Mounting aids with means for avoiding false mounting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/201—Conical shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/208—Oval shape
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/08—Air cleaners with means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of cleaners
    • F02M35/09—Clogging indicators ; Diagnosis or testing of air cleaners

Definitions

  • the invention relates to a hollow filter element, in particular a conical-oval round filter element, a filter for fluid, in particular air, water, fuel, oil or urea water solution, in particular an air filter, in particular an internal combustion engine, in particular a motor vehicle, in particular a commercial vehicle, with a filter medium for filtering the Fluid, which surrounds an element interior circumferentially with respect to an element axis, wherein the hollow filter element at least on an outer side facing away from the element interior on an end face at least one support element for supporting the hollow filter element on a housing-side support portion of a filter housing of the filter.
  • the invention relates to a filter housing of a filter for fluid, in particular air, water, fuel, oil or urea water solution, in particular an air filter, in particular an internal combustion engine, in particular a motor vehicle, in particular a commercial vehicle, which is apparent, the at least one inlet for having cleansing fluid and at least one outlet for purified fluid and in which a hollow filter element, in particular a hollow filter element according to the invention, with a filter medium for filtering the fluid surrounding an element interior with respect to an element axis, can be arranged interchangeably so that it at least one Inlet separates from the at least one outlet, wherein at least one housing-side support portion is arranged in / on the filter housing, on which the hollow filter element can be supported with at least one support element, which is located on one of the end faces of the hollow filter element, un d wherein at least one secondary fluid line and / or at least one positioning device is provided on the side of the filter housing.
  • a filter for fluid in particular air, water, fuel, oil or urea water solution
  • the invention relates to a filter for fluid, in particular air, water, fuel, oil or urea water solution, in particular an air filter, in particular an internal combustion engine, in particular a motor vehicle, in particular a commercial vehicle, with an apparent filter housing, in particular a filter housing according to the invention, in the a hollow filter element is arranged.
  • an air filter device for an internal combustion engine of a motor vehicle is known.
  • An air filter is hereby supported in an air filter housing by means of a support.
  • the support is at least partially traversed by air and has a connection piece for connecting a secondary air line.
  • air can be fed from the air filter device via the support to a secondary air system.
  • the invention has for its object to design a hollow filter element, a filter housing and a filter of the type mentioned, in which simply a secondary fluid line can be realized. Disclosure of the invention
  • the hollow filter element at the end face in the center of the at least one support element at least one connected in particular with the element interior fluid passage for connecting a secondary fluid line connection of a housing-side secondary fluid line and / or for receiving a housing-side Positionierdoms.
  • the fluid passage is combined with the at least one support element.
  • the at least one fluid passage can in particular pass through the at least one support element.
  • the required installation space can be reduced.
  • This can in particular have a positive effect on a dirt capacity of the fluid filter.
  • the dust capacity can be improved.
  • pressure losses between the clean fluid side and the crude fluid side of the filter medium can thus be reduced.
  • a housing-side secondary fluid line connection can be connected to the fluid passage.
  • the secondary fluid conduit connection can be inserted into or through the at least one fluid passage.
  • a housing-side positioning dome can be inserted into or through the at least one fluid passage.
  • the secondary fluid conduit connection and / or the positioning mandrel can center and position the hollow filter element during assembly more precisely in the transverse direction, in particular radially, relative to the element axis.
  • the secondary fluid line connection and / or the positioning dome can thus serve as a positioning device.
  • the secondary fluid line connection and / or the positioning dome can clamp the hollow filter element in the axial direction in the filter housing.
  • the hollow filter element can be held and fixed reliably and securely in its position, especially when driving movements occur in a motor vehicle and / or vibrations.
  • the hollow filter element can be secured against slipping in the transverse direction.
  • the hollow filter element can also be used in conjunction with a filter housing which has no corresponding secondary fluid line.
  • the secondary fluid line connection and / or the positioning dome may be made of plastic or have plastic.
  • the secondary fluid line connection and / or the positioning dome can taper at its free end. In this way it can be easily inserted into or through the fluid passage.
  • the at least one support element may be at least transversely to the element axis, in particular radially or tangentially to the element axis or radially to another axis which is parallel to the element axis can be supported. In this way, the hollow filter element can be positioned and held in the radial direction with respect to the element axis.
  • the at least one support element can additionally be supported in the axial direction with respect to the element axis in the filter housing. In this way, the axial position of the hollow filter element can be improved.
  • the hollow filter element can advantageously be clamped and held in the axial direction between two opposite support sections of the filter housing.
  • the expansion of the filter medium may be smaller at least in one direction radially to the element axis at one of its end faces than at the other end face.
  • the filter medium may in particular be conical.
  • the at least one support element and the at least one fluid passage can be arranged on the smaller end face.
  • the at least one support element may be arranged on a raw fluid side of the hollow filter element. Alternatively or additionally, at least one support element can be arranged on a clean fluid side.
  • At least one support element can be arranged centrally with respect to the element axis on the front side of the hollow filter element.
  • the hollow filter element can be supported centrally. In this way, even with only one support element and only one corresponding housing-side support section, improved support of the hollow filter element on the filter housing can take place.
  • the support can be realized with a small footprint of the components required for this purpose in the filter housing.
  • the at least one support element may be at least partially elastic. In this way, any installation tolerances of the hollow filter element in the filter housing can be easily compensated with the at least one support element.
  • the at least one support element can additionally serve as a vibration damper, in particular during operation of the filter.
  • the fluid passage to an elastic support element can be sealed more easily with the secondary fluid line connection and / or the positioning mandrel. A seal can be made by over-pressing the elastic material, in particular polyurethane foam. On additional sealing elements can be dispensed with.
  • the at least one support element may be made of an elastic plastic, in particular polyurethane (PUR). Polyurethane can be easily connected to the end body.
  • PUR polyurethane
  • the at least one support element can advantageously be foamed on or onto any end body.
  • the element axis and / or a housing axis of the filter housing can advantageously be parallel or coaxial with each other.
  • the element axis and / or the housing axis can run parallel or coaxial with an installation axis of the filter element in the filter housing.
  • the hollow filter element can be easily inserted into the filter housing in the axial direction.
  • the hollow filter element can be inserted in the axial direction into a corresponding housing part, in particular a housing pot, of the filter housing.
  • a mounting axis in which the two housing parts are assembled or separated, run parallel or coaxial with the element axis and / or the housing axis and / or the installation axis.
  • one of the housing parts in particular a housing cover, in the axial direction of the hollow filter element and / on the other housing part, in particular a housing pot, are inserted.
  • the hollow filter element can advantageously be a round filter element with a round cross section, an oval round filter element with an oval cross section, a flat oval round filter element with a flattened oval cross section, a conical round filter element, in which the round cross section tapers in the axial direction to the element axis a conical-oval round filter element, in which the oval cross-section tapers in the axial direction to the element axis at least in the direction of a transverse axis, a conical flat-oval round filter element, in which the flat-oval cross section in the axial direction to the element axis at least in the direction of a transverse axis tapered, or a hollow filter element with a different, in particular an angular, cross-section and / or a different cross-sectional variation in the direction of the element axis act.
  • the filter medium can advantageously be circumferentially closed, in particular star-shaped, in particular zigzag-shaped or wave-shaped, folded.
  • the filter medium may also be closed circumferentially unfolded.
  • the filter medium may be formed into a filter bellows.
  • the filter medium may be filter paper, filter fleece or a different type of filter medium suitable for filtering the fluid, in particular air.
  • the filter medium can be single-layered or multi-layered.
  • the filter may advantageously be an air filter.
  • the air filter may advantageously be part of an air intake tract of an internal combustion engine. It can serve for the purification of combustion air, which is supplied to the internal combustion engine.
  • the invention is not limited to an air filter of an air intake tract of an internal combustion engine of a motor vehicle, in particular a truck. Rather, it can also be used in other types of air systems of motor vehicles.
  • it may be in the Air filter also act on a cabin filter.
  • the filter, in particular air filter can also be used outside the automotive industry, especially in industrial engines.
  • the filter may be part of a utility machine, in particular a construction machine or a utility vehicle, in particular a commercial vehicle, in particular a truck, a bus, a construction machine or an agricultural machine.
  • the secondary fluid line may be a secondary air line.
  • the secondary air line may lead to a compressor of a brake system of the motor vehicle. This allows the compressor to be supplied with purified air.
  • the at least one fluid passage can thus serve as a compressed air connection.
  • the secondary fluid line can be or have a hose, a channel, a pipe or another type of fluid line component.
  • the secondary fluid line may be connected outside the filter housing with corresponding fluid lines.
  • the at least one support element may have at least one cavity which, at least when the hollow filter element is not installed, can be connected to the at least one fluid passage and open on its side facing away from the fluid passage.
  • At least a portion of the housing-side support portion can be inserted into the at least one cavity. In this way, freedom of movement, in particular radially relative to an axis of the at least one support element relative to the at least one support section, can be restricted.
  • the housing-side secondary fluid line in particular a fluid line connection of the secondary fluid line, can lead to the fluid passage through the at least one cavity.
  • the housing-side secondary fluid line can thus be arranged to save space in or on the housing-side support section.
  • the at least one support element may have at least one cylindrical and / or at least one conical section.
  • a main axis of the at least one support element may extend axially or parallel to the element axis.
  • the at least one support element can be supported against the at least one corresponding housing-side support section transversely and / or axially and / or parallel to the element axis.
  • the at least one support element may advantageously have an oval, flat-oval or round base surface. It may also have a different, in particular an angular, base area.
  • the at least one support element may have a hollow-cylindrical or sleeve-like section.
  • the hollow-cylindrical or sleeve-like section of the at least one support element can advantageously be plugged into a corresponding end-side groove, in particular a counter-support groove, of the at least one housing-side support section when the hollow filter element is mounted correctly.
  • the groove may be considered as a cavity of the housing-side support portion, which may be open to the free end side of the housing-side support portion.
  • the at least one fluid passage can have at least one part of a sealing device for sealing against the secondary fluid line connection of the housing-side secondary fluid line.
  • the at least one fluid passage may comprise at least one elastic portion and / or at least one seal receptacle for a seal.
  • the at least one elastic portion can advantageously be realized as a two-component component or as an insert.
  • the at least one elastic portion and / or the at least one seal can bear sealingly against a corresponding sealing portion of the housing-side secondary fluid line connection when the hollow filter element is mounted.
  • the sealing device may advantageously extend circumferentially with respect to the fluid passage. In this way it can easily seal against a tubular portion of the secondary fluid line connection.
  • the secondary fluid line connection may advantageously pass through the sealing device.
  • the seal receiver may be a seal groove.
  • the seal may advantageously be an O-ring seal.
  • the at least one fluid passage can be connected to a clean fluid side of the filter medium.
  • purified fluid can be conveyed via the fluid passage and the housing-side secondary fluid line to a corresponding point of use.
  • the hollow filter element can have at least at the at least one end face an end body, which can comprise the at least one fluid passage and which can be connected to or have the at least one support element.
  • the hollow filter element can be mechanically stabilized.
  • the at least one end body can also have holding and / or connection function.
  • the filter medium can be sealed with the end body on the front side.
  • the end body may advantageously be made of plastic. It can advantageously be glued to the end face of the filter medium, welded or otherwise tightly connected.
  • the material of which the end body consists or has, can advantageously be foamed or foamed onto the end face of the filter medium.
  • the at least one end body may advantageously be an end plate. End discs have a small thickness compared to their radial extension.
  • the at least one support element can advantageously be firmly connected to the end body.
  • the at least one support element may in particular be adhesively bonded, welded or foamed or in some other way fixedly connected to the end body as a separate component.
  • the at least one support element may also be mechanically connected to the end body in particular by means of a latching connection, a snap connection or in another way.
  • the at least one support element may be detachably or non-detachably connected to the end body.
  • the filter medium may have an end body on both end faces.
  • the end body can have a passage opening for the fluid on the end face of the hollow filter element that is axially opposite the support element.
  • the hollow filter element can have at least one leveling element for supporting against the filter housing on at least one side circumferential to the axis of the element.
  • the at least one support element and the at least one fluid passage can be easily positioned relative to the housing-side support portion and the housing-side fluid connection.
  • the at least one leveling element different distances from edges of the hollow filter element radially to the element axis at different sized end faces of the hollow filter element can be compensated.
  • height compensation can be achieved.
  • the hollow filter element can thus be aligned in the filter housing.
  • the at least one leveling element can serve as a positioning aid during assembly of the filter, in particular during installation of the hollow filter element in the filter housing and / or during closing of the filter housing.
  • the corresponding front side can be centered, in particular raised.
  • the filter housing can have at least one guide section cooperating with the at least one leveling element, in particular at least one guide track.
  • the at least one leveling element can be guided and / or positioned during the assembly of the filter.
  • the at least one leveling element can advantageously serve as a spacer.
  • a radial distance between the radially outer peripheral side of the hollow filter element at the corresponding end face and a corresponding opposite section of the filter housing can be realized with respect to the element axis.
  • a gap can be realized between the hollow filter element in the region of the end face and an inner wall of the filter housing surrounding the hollow filter element radially on the outside.
  • fluid can enter into or out of a space surrounding the filter medium, in particular an inflow annular space, radially inwards.
  • fluid can flow axially to the element axis from an inlet space section of the filter housing to the upstream side of the filter medium.
  • the inflow side of the filter medium is located on the radially outer peripheral side of the hollow filter element.
  • the downstream side of the hollow filter element is then located in the element interior.
  • the fluid stream may flow axially of the element axis from the downstream side of the filter medium into a corresponding outlet space portion of the filter housing.
  • the element axis can be aligned parallel to the housing axis, in particular coaxially.
  • the filter can be constructed as a whole coaxially.
  • the hollow filter element can have at least one leveling element on opposite circumferential sides.
  • the hollow filter element can be supported on opposite sides against the filter housing.
  • a more even and / or more precise guidance / positioning / posture can be made in the filter housing.
  • the at least one leveling element may extend at least radially, in particular radially and axially, outwardly beyond the radially outer peripheral side of the filter medium.
  • the at least one leveling element allow radial support.
  • a distance between a radially outer peripheral side of the filter medium and a corresponding peripheral side of the filter housing can be achieved. If the at least one leveling element additionally protrudes beyond the filter medium in the axial direction, additional axial support may be provided. In this way, tilting or tilting of the hollow filter element can be counteracted relative to the housing axis.
  • the filter housing in that the at least one secondary fluid line has at least one secondary fluid line connection and / or the at least one positioning device has at least one positioning dome for connection to at least one fluid passage connected to the element interior, which is located in the center of the at least one support element ,
  • the at least one secondary fluid line can run in / on the at least one housing-side support section and / or at least be formed by it.
  • the at least one secondary fluid line can be realized in a space-saving, simple and / or protected manner in / on the at least one housing-side support section which is present in any case.
  • the at least one secondary fluid line can be realized with a fluid tube, which can run within the at least one housing-side support section.
  • the support function of the housing-side support portion and the fluid conduction function of the secondary fluid line can be separated from each other.
  • the support function and the fluid line function can thus be optimized separately from each other.
  • the secondary fluid line can project beyond the at least one housing-side support section in the region of the secondary fluid line connection.
  • the secondary fluid line connection of the housing-side secondary fluid line can lead into the fluid passage of the hollow filter element, while the at least one housing-side support section can be supported next to the fluid passage.
  • the filter housing can have at least two housing parts, in particular a housing pot and a housing cover, which are suitable for installation / removal of the housing Hollow filter element are at least partially separable from each other, and the at least one housing-side support portion and the at least one housing-side secondary fluid line may be connected to one of the housing parts, in particular the housing cover.
  • one of the housing parts of the filter housing, in particular the housing pot have an installation opening for the hollow filter element, which can be closed with the other housing part, in particular the housing cover.
  • the at least one housing-side support section and / or at least the secondary fluid line connection with respect to a housing axis which may coincide with built-hollow filter element with the element axis, centrally located in / on the filter housing.
  • the installation opening can be crossed by the housing axis / element axis in the installed state of the hollow filter element, in particular be coaxial with the housing axis / element axis.
  • At least one of the at least two housing parts in particular a housing cover, at least one at least with an imaginary main guide line in a plane with an installation axis of the hollow filter element in the housing part, in particular the housing cover extending guideway for guiding and supporting at least a leveling element which is arranged on a front side, in particular a first end body, of the hollow filter element with respect to the filter axis radially outward.
  • the at least one leveling element can be guided along the at least one guideway during installation / removal of the hollow filter element.
  • At least one of the at least two housing parts in particular the housing pot and / or the housing cover, have at least one connection tab for connection to the respective other component of the filter housing.
  • the corresponding other housing part namely the housing cover and / or the housing pot, at least one suitable for the at least one connecting tab Laschenier- measures.
  • the at least one connecting strap can be inserted into the at least one tab receptacle for connecting the housing cover to the housing pot.
  • the at least one connecting strap can be arranged with the housing cover mounted on the same circumferential side of the filter housing as the at least one leveling element.
  • the at least one leveling element can press against the at least one circumferential wall section of the housing cover and / or the housing pot from the inside, and the at least one connecting link and / or the corresponding tab receptacle can withstand from the outside.
  • the at least one support element and the at least one housing-side support section can not have a sealing function.
  • the support function can be separated from each other and each optimized.
  • a corresponding sealing function can be assigned to at least one other, from the at least one support element and the at least one support portion separate component pairing and optimized for.
  • the at least one support section may have at least one cylindrical and / or at least one conical section.
  • a main axis of the support section, in particular of the cylindrical / conical section, can advantageously extend axially or parallel to the housing axis. In this way, the at least one support section and the at least one support element with the hollow filter element installed can have the same orientation.
  • the main axes of the at least one support element and the at least one support section may be coaxial with the hollow filter element mounted.
  • the at least support element can be easily put on and / or in the support section.
  • the main axes of the at least one support element and the at least one support portion with built-hollow filter element parallel or axially to a mounting axis of the filter element relative to the filter housing, in particular to the housing part with the at least one support portion extend.
  • the at least one support element and the at least one support section can simply be automatically related to the assembly of the filter element in the filter housing, in particular during assembly of the filter housing.
  • the at least one support element can be brought into contact with the at least one housing-side support section and / or the fluid passage with the housing-side secondary fluid line connection so easily when mounting the housing cover to the housing pot.
  • the at least one support element may be at least partially complementary to the at least one housing-side support section.
  • the at least one support element can rest against the at least one support section virtually without play. In this way, simply a reliable and stable support transversely, in particular radially and / or tangentially to the element axis and / or housing axis done.
  • the at least one support portion may advantageously have an oval, flat-oval or round base. He can also have a different, especially an angular, base area.
  • the at least one support section may have an end-side groove, in particular a counter-support groove, which may extend circumferentially relative to the main axis of the at least one support section.
  • the groove may advantageously be located on an end face of the at least one support section facing the hollow filter element.
  • the at least one support section may advantageously have a hollow-cylindrical or sleeve-like section.
  • the at least one housing-side support portion may be a kind of pillar or dome, comprise this or be part of this.
  • the at least one support element of the hollow filter element can be supported.
  • the pillar or dome may be connected to the filter housing, in particular the housing cover. It may in particular be integrally connected to the filter housing.
  • the pillar or dome may advantageously extend through a space portion of the filter housing.
  • the hollow filter element can be supported in a bridged by the pillar or dome distance to a corresponding housing wall of the filter housing.
  • the space portion can be traversed by the fluid during operation of the filter.
  • the space portion may be an inlet space portion or an outlet space portion.
  • the technical problem is also solved in the filter according to the invention in that a hollow filter element according to the invention is arranged in the filter housing.
  • the filter housing may be a filter housing according to the invention.
  • an inlet side inlet space portion, an element space portion in which the hollow filter element may be disposed, and an outlet side outlet space portion of the filter housing may be arranged linearly along the flow path of the fluid through the filter.
  • a main flow direction of the fluid from the inlet space portion through the element space portion into the outlet space portion may be substantially axial to the element axis and / or to the housing axis.
  • Figure 1 is a plan view of an air filter of an internal combustion engine of a motor vehicle according to a first embodiment, with a composite of a housing pot and a housing cover filter housing in which a conical-oval round filter element is arranged interchangeable and having an air port for a compressor of a brake system of the motor vehicle;
  • FIG. 2 shows a transverse section of the air filter from FIG. 1 along the section line II-II there;
  • FIG. 3 shows a first longitudinal section of the air filter from FIG. 1 along the local side
  • FIG. 4 shows a second longitudinal section of the air filter from FIG. 1 along the section line
  • FIG. 5 shows a first isometric oblique view of the air filter from FIGS. 1 to 4;
  • Figure 6 is a second isometric oblique view of the air filter of Figures 1 to 5;
  • Figure 7 is a third isometric oblique view of the air filter of Figures 1 to 6;
  • Figure 8 is an isometric view of the round filter element of the air filter of Figures 1 to 7;
  • Figure 9 is an isometric view of the open housing pot of the air filter of the figures
  • Figure 10 is an isometric view of the housing cover of the air filter of Figures 1 to
  • Figure 1 1 is an isometric view of the housing cover of the air filter of Figures 1 to
  • FIG. 12 shows a first longitudinal section of an air filter according to a second exemplary embodiment along the section line XII-XII from FIG. 13;
  • FIG. 13 shows a second longitudinal section of the air filter from FIG. 12;
  • Figure 14 is an isometric view of the housing cover of the air filter of Figures 12 and 13 without round filter element.
  • an air filter 10 of an internal combustion engine of a commercial vehicle according to a first embodiment in different representations and assembly phase is shown.
  • the air filter 10 is arranged in an air intake tract of the internal combustion engine. It serves to purify combustion air, which is supplied to the internal combustion engine for combustion.
  • the air filter 10 includes an apparent filter housing 12.
  • the filter housing 12 is flat-oval.
  • the filter housing 12 is flattened in relation to an oval filter housing with an approximately elliptical cross section in the direction of its short transverse axis.
  • the filter housing 12 has a housing pot 14, in the figures 1, 3 and 4 on the left.
  • the housing pot 14 has an installation opening 16, which is shown in the foreground, for example in FIG. 9, for installation of a filter element 18.
  • the installation opening 16 is closed by a housing cover 20, in FIG.
  • the housing pot 14 has an outlet 22 for the filtered air, which opens into an outlet space portion 24 of the housing pot 14.
  • the outlet 22 is connected outside of the filter housing 12 via air lines, not shown, to the internal combustion engine.
  • the housing cover 20 has an inlet 26 for air to be filtered, which opens into an inlet space portion 28 of the housing cover 20 and is connected outside of the filter housing 12 with the environment.
  • the filter element 18 is disposed in an element space portion 30 of the housing pot 14 so as to separate the inlet 26 from the outlet 22.
  • the element space portion 30 is located in a linear arrangement between the inlet space portion 28 and the outlet space portion 24.
  • the inlet space portion 28, the element space portion 30 and the outlet space portion 24 are arranged one behind the other axially of one and other filter axis 32 shown in FIG.
  • the filter axis 32 coincides with a housing axis of the filter housing 12 and, with the filter element 18 installed, with an element axis of the filter element 18.
  • the filter axis 32 also coincides here with an installation axis along which the filter element 18 can be inserted into the housing pot 14 and removed therefrom.
  • the filter axis 32 also coincides with a mounting axis along which the housing cover 20 is mounted on the housing pot 14.
  • filter axis 32 For the sake of clarity and comprehensibility, in the embodiment described in the description, the above-enumerated axes will be referred to as “filter axis 32." In the following, “axial,” “radial,” “circumferential,” or “coaxial,” is discussed this refers to the filter axis 32 unless otherwise stated.
  • the mounting opening 16 surrounds the filter axis 32 circumferentially. In the installed state of the filter element 18, the filter axis 32 crosses the mounting hole 16.
  • the inner dimension of the mounting hole 16 is larger than the largest outer dimension of the filter element 18 radially to the filter axis 32.
  • a base of the mounting hole 16 is elongated flat-oval.
  • the housing pot 14 has a circumferentially closed sealing surface 34.
  • the sealing surface 34 extends in the radial direction.
  • the sealing surface 34 faces the housing cover 20.
  • a seal 36 of the filter element 18 circumferentially closed tightly against.
  • the radially inner cross section of the element space section 30 is larger than a radially outer cross section of the sealing surface 34.
  • a Anströmringraum 38 is realized between a radially outer peripheral side of the filter element 18 and the radially inner peripheral side of the element space portion 30, a Anströmringraum 38 is realized.
  • the Anströmringraum 38 is separated by means of the seal 36 of the outlet space portion 24.
  • the inflow annular space 38 is connected to the inlet space section 28 via a circumferential gap 40.
  • the inlet space portion 28 and the Anströmringabites 38 are located on the raw air side of the filter element 18th
  • a hollow cylindrical buttress 42 is arranged on the housing cover 20.
  • the supporting pillar 42 is integrally connected to the housing cover 20. It is approximately coaxial with the filter axis 32. It is arranged centrally with respect to the filter axis 32.
  • the supporting pillar 42 extends in the inlet space section 28 from an inside of the housing cover 20 facing the filter element 18 to an inlet-side end side 66 of the filter element 18.
  • the supporting pillar 42 is located on the unfiltered air side of the filter medium 64.
  • the supporting pillar 42 pierces the housing cover 20 and is open to the environment.
  • a coaxial counter support groove 44 extending peripherally and extending to a main axis of the support pillar 42, that is to say to the filter axis 32, is arranged.
  • the Jacobstütznut 44 is an oval annular cavity in the end face of the support post 42, which is open to the free end face of the support post 42.
  • a secondary air line connection 45 of a tubular secondary air line 47 leads through a section of the support pillar 42 surrounded by the counter support groove 44.
  • the secondary air line 47 leads out of the filter housing 12 coaxially in the interior of the support pillar 42. It is connected outside of the filter housing 12 with an air line, not shown, which leads to a compressor of a brake system of the motor vehicle.
  • the housing pot 14 also has two connecting straps 46 for connection to the housing cover 20.
  • the connecting straps 46 are located on the flattened peripheral sides of the housing pot 14 opposite each other with respect to the filter axis 32. They are each attached in one piece to the free peripheral edge of the housing pot 14, which surrounds the mounting opening 16.
  • the connecting straps 46 extend parallel to the mounting axis of the housing cover 20 with the housing pot 14, ie parallel to the filter axis 32.
  • Thought central axes of the connecting straps 46 lie in an imaginary plane with the filter axis 32. This imaginary plane is viewed in the direction of the filter axis 32 inclined to one other imaginary plane with a minor axis of the oval mounting hole 16.
  • the imaginary center axes of the connecting plates 46 are thus, as seen for example in Figure 9, on opposite sides laterally offset to the minor axis.
  • connection tabs 46 The mutually facing inner sides of the connecting straps 46 are smooth.
  • the inner sides of the connection tabs 46 each form an initial section of corresponding guide ramps 48
  • Guide ramps 48 continue on the inside of the housing pot 14.
  • respective radially outer circumferential sides of an outlet-side end plate 50 of the filter element 18 are guided into the housing pot 14 when the filter element 18 is installed.
  • the opposite outer sides of the connecting plates 46 are equipped with stabilizing profiles.
  • the connecting straps 46 taper in a wedge-like manner. This simplifies the insertion of the connecting straps 46 into corresponding tab receptacles 52 of the housing cover 20 for connecting the housing pot 14 to the housing cover 20.
  • the housing cover 20 has two tab receptacle 52.
  • the tab receptacles 52 in each case match one of the connecting lugs 46 of the housing pot 14.
  • the tab receptacles 52 are located on the opposite relative to the filter axis 32 flattened peripheral sides of the housing cover 20. They are each arranged integrally in the region of the free peripheral edge of the housing cover 20. The tab receptacles 52 are integrated in the peripheral wall of the housing cover 20.
  • the tab receptacles 52 each extend parallel to the mounting axis of the housing cover 20 with the housing pot 14, that is parallel to the filter axis 32. Thought central axes of Laschenfactn 52 lie in a plane with the filter axis 32. This plane is viewed in the direction of the filter axis 32 inclined to an imaginary Level with a minor axis of the oval mounting opening 16.
  • the central axes of the tab receptacles 52 are thus, analogous to the central axes of the connecting straps 46, laterally offset on opposite sides to the minor axis. This is shown for example in FIG.
  • the tab receptacles 52 are circumferentially closed recesses with respect to their respective central axis, which run parallel to the filter axis 32.
  • the connecting straps 46 are held in each case on all peripheral sides in the corresponding tab receptacle 52.
  • the tab receptacles 52 have on their side facing the housing pot 14 on a corresponding insertion opening 54 for the corresponding connection tab 46.
  • the connecting straps 46 mechanically stabilize the peripheral wall sections of the housing cover 20.
  • the connecting straps 46 support the circumferential wall sections radially to the filter axis 32, that is to say radially to the element axis and to the housing axis.
  • the housing cover 20 also has two guide tracks 56 for guiding and supporting corresponding leveling elements 58 of the filter element 18.
  • One of the guideways 56 is for example in Figure 1 1 recognizable.
  • the guideways 56 are located with respect to the filter axis 32 on diagonally opposite, radially inner peripheral sides of the housing cover 20th
  • the guideways 56 are each realized on a guide arm 60.
  • the guide arms 60 are integrally connected to an inner side of the housing cover 20, which forms the inlet space portion 28, with a longitudinal side with the respective radially inner peripheral side of the peripheral wall of the housing cover 20.
  • the respective opposite longitudinal sides of the guide arms 60 form the corresponding guideways 56.
  • the cross struts 61 engage respectively near the free end of the support post 42nd at. With the cross struts 61 of the support post 42 is supported against the peripheral wall of the housing cover 20.
  • the guide arms 60 each protrude out of the interior of the housing cover 20. Outside the housing cover 20, the guide arms 60 are beveled in each case on the radially inner longitudinal sides with the guide tracks 56. The corresponding guideways 56 run towards the filter axis 32 in the direction of the filter axis 32 toward the interior of the housing cover 20.
  • the guideways 56 each extend with an imaginary main guide line 62 in a plane with the mounting axis, so the filter axis 32, the housing cover 20 with the housing pot 14 and the filter element 18.
  • the main guide lines 62 give when plugging the housing cover 20 on the filter element 18 a way a contact area of the corresponding leveling element 58 when sliding against the corresponding guide track 56.
  • the main guide lines 62 are located in an imaginary secondary plane, which is spanned by the minor axis of the flat-oval base of the installation opening 16 and the filter axis 32.
  • the filter element 18 described in more detail below is shown for example in FIG.
  • the filter element 18 is a flat conical-oval round filter element.
  • the filter element 18 is coaxial with the element axis, that is to the filter axis 32.
  • the filter element 18 has a flat-oval cross-section.
  • the short transverse axis of the oval, ie the minor axis, lies in the plane of the drawing of FIG. 3, the long transverse axis, that is to say the main axis, is perpendicular to the plane of the drawing.
  • the filter element 18 In the direction of the short transverse axis, the filter element 18 is additionally flattened, hence the term “flat conical.”
  • "oval" designates an approximately elliptical cross section
  • the outer cross section and the inner cross section of the filter element 18 taper from its outlet side end face 68 facing the outlet space section 24 to the inlet side end face 66.
  • the direction of the minor axis of the flat-oval filter element 18 extends in the final installation position in the usual operating position spatially vertical.
  • the filter axis 32 extends in the installed position in the usual operating position spatially horizontal.
  • the filter element 18 includes a zig-zag folded toward a filter bellows, with respect to the element axis, so the filter axis 32, circumferentially closed filter medium 64.
  • the filter medium 64 is a filter fleece, which is suitable for filtering air.
  • the expansion of the filter bellows from the filter medium 64 in the direction radially to the element axis, ie to the filter axis 32, at its inlet-side end face 66 is smaller than at its outlet-side end face 68.
  • the filter medium 64 is connected to the outlet-side end disk 50.
  • the outlet-side end plate 50 is coaxial with the filter axis 32.
  • the outlet-side end plate 50 is made of a plastic. It is glued tightly to the end face 68 of the filter medium 64.
  • the radially outer peripheral side of the outlet-side end plate 50 abuts with minimal play on the radially inner peripheral side of the housing pot 14 there.
  • the outlet-side end disk 50 has a central, coaxial outflow opening 70.
  • the outflow opening 70 extends over the entire radially inner cross section of the filter medium 64. Via the outflow opening 70, an element interior 72 of the filter element 18 which is surrounded by the filter medium 64 is connected to the Outlet space portion 24 connected.
  • the seal 36 is arranged at the filter medium 64 axially opposite outside of the outlet-side end plate 50.
  • the seal 36 is made of elastic polyurethane foam. It is foamed onto the outlet-side end disk 50.
  • the seal 36 is coaxial with the element axis, ie to the filter axis 32, and circumferentially surrounds the discharge opening 70. It extends in the axial direction. It is supported in the axial direction on the sealing surface 34 of the housing pot 14.
  • the filter medium 64 is tightly connected to an inlet-side end disk 74.
  • the inlet-side end plate 74 is made of polyurethane.
  • the inlet side end plate 74 closes the element interior 72 toward the inlet space portion 28.
  • the inlet-side end plate 74 is connected to the filter medium 64 in a similar manner as the outlet-side end plate 50.
  • a coaxial support tube 76 Between the inlet-side end plate 74 and the outlet-side end plate 50 extends in the element interior 72, a coaxial support tube 76.
  • the support tube 76 is made of plastic. It is structured like a lattice. Its peripheral side is permeable to air.
  • the support tube 76 has a filter medium 64 corresponding to the flat conical-oval shape. The radially inner circumferential side of the filter medium 64 may be supported on the radially outer peripheral side of the support tube 76.
  • a support element 78 is arranged on the element interior 72 facing away from the axial outer side of the inlet-side end plate 74.
  • the support element 78 is located on the unfiltered air side of the filter medium 64.
  • the support element 78 is sleeve-like. It has the shape of a hollow cylinder whose main axis extends in the embodiment shown coaxially to the filter axis 32, ie to the element axis.
  • a cavity 80 of the support element 78 is open on its end face facing away from the inlet end plate 74.
  • an air passage 81 leads through the inlet-side end disk 74 and is connected to the element interior 72.
  • the housing-side secondary air line connection 45 passes through the air passage 81 and thus connects the element interior 72 with the secondary air line 47.
  • the air passage 81 also has a sealing device 85 for sealing against the secondary air line connection 45.
  • the sealing device 85 is designed as a soft-elastic Realized two-component component, which is located on the radially inner peripheral side of the air passage 81.
  • the sealing device 85 surrounds the opening of the air passage 81 coaxially and circumferentially contiguous.
  • the radially inner peripheral side of the sealing device 85 is circumferentially close to the radially outer peripheral side of the secondary air line connection 45.
  • the sealing device 85 may also be a seal, for example an O-ring seal, or a sealing insert, which is inserted into the opening of the air passage 81.
  • the support element 78 has an approximately oval Ouerschnitt. Its short axis lies in the figure 3 in the plane of the drawing, its long axis of the axis is perpendicular to the plane of the drawing.
  • the orientation of the support element 78 with respect to the filter axis 32 corresponds to the orientation of the support pillar 42 of the housing cover 20.
  • the section of the support pillar 42 surrounded by the counter support groove 44 is inserted into the cavity 80 of the support element 78 when the filter element 18 is mounted correctly.
  • the peripheral wall of the support element 78 is inserted into the counter support groove 44 of the support pillar 42.
  • the wall thickness of the support element 78 decreases in a conical section toward the free edge.
  • the filter element 18 With the support member 48, the filter element 18 is supported via the support post 42 against the filter housing 12.
  • the support takes place radially, ie transversely to the filter axis 32, that is transversely to the element axis and the housing axis, and axially.
  • the filter element 18 By cooperating the support member 48 with the support post 42, the filter element 18 on the inlet side, so rooh Kunststoff device, held radially and axially with and positioned.
  • the filter element 18 can be held on the inlet space portion 28 side facing in the filter housing 12 with.
  • each support web 82 is arranged on the radially outer edges of the inlet-side end disk 74 in the region of the short transverse sides.
  • the support webs 82 respectively project beyond the inlet-side end disk 74 both in the radial direction and in the axial direction.
  • the support webs 82 are each supported on corresponding support points 83, which are shown inter alia in Figures 3, 10 and 1 1, on the inside of the housing cover 20 in the radial direction.
  • the above-mentioned leveling elements 58 are located on the inlet-side end disk 74 with respect to the element axis, that is to say the filter axis 32, radially outward.
  • the leveling elements 58 are made of polyurethane.
  • the leveling elements 58 are arranged on a rough air side of the filter element 18.
  • the leveling elements 58 are arranged with respect to the filter axis 32 diagonally opposite circumferential sides of the inlet-side end plate 74. Thought centers of the leveling elements 58 are located on a minor axis of a flat-oval cross section of the filter element 18th
  • the filter bellows of the filter element 18 has a smaller radial extent at the inlet-side end face 66 than at the outlet-side end face 68.
  • the minor axis lies in an imaginary plane which runs parallel to the flat-oval base surface of the filter element 18.
  • the minor axis is the short axis of the imaginary plane through its midpoint.
  • the major axis is the long axis of the imaginary plane through its mid-point.
  • the leveling elements 58 each extend radially and axially outwardly beyond the radially outer circumferential side of the filter bellows of the filter medium 64 and the inlet-side end plate 74.
  • Distances of the radially outer circumferential sides of the leveling members 58 from the filter axis 32 correspond to distances of the corresponding radially outer peripheral side of the outlet side end plate 50 from the filter axis 32, respectively.
  • One of the leveling elements 58 is arranged in the end installation position of the filter element 18 in the filter housing 12 in its usual operating position spatially down.
  • the other leveling element 58 is arranged spatially above, vertically above the first leveling element 58.
  • the tab receptacles 52 with the connecting tabs 46 are each arranged approximately mounted on the same peripheral side of the filter housing 12, as one of the guideways 56 for one of the leveling elements 58.
  • the tab receptacles 52 / connecting plates 46 and the corresponding leveling elements 58 / guideways 56 arranged circumferentially staggered to each other, wherein the tab receptacles 52 connecting tabs 46 overlap with the corresponding leveling elements 58 / guideways 56 viewed in the radial direction.
  • the guideways 56 are each arranged between one of the leveling elements 58 and one of the tab receptacles 52 / connecting straps 46.
  • the connecting straps 46 / tab receptacles 52 By means of the connecting straps 46 / tab receptacles 52, the guideways 56 are supported against a pressure of the leveling elements 58.
  • the leveling elements 58 press from the inside against the corresponding peripheral wall portion of the housing cover 20.
  • the connecting tabs 46 and the corresponding tab receptacles 52 hold each from the outside against it.
  • the air to be filtered flows through the inlet 26, indicated in Figure 1 by an arrow 84, in the inlet space section 28.
  • the air passes substantially in the axial direction through the gap 40 in the oncoming annular space 38th on the inflow side of the filter medium 64.
  • the air flows through the filter medium 64 from radially outside to radially inside and is cleaned.
  • the cleaned air flows through the peripheral side of the support tube 76 and enters the element interior 72.
  • the cleaned air leaves the element interior 72 substantially in the axial direction and enters the outlet space section 24. From there, the filtered air leaves the filter housing 12 through the outlet 22, indicated in Figure 1 by an arrow 86th
  • the filter housing 12 can be opened.
  • the housing cover 20 is removed in the axial direction of the housing pot 14.
  • the support element 78 are automatically pulled out of the Gegenstütznut 44 at the end of the support post 42 and the secondary air line connection 45 from the air passage 81 out.
  • the connecting straps 46 are pulled out of the tab receptacles 52.
  • the leveling elements 58 slide along the guideways 56.
  • the filter element 18 is pulled in the axial direction from the element space portion 30 of the housing pot 14. It can be replaced by a new filter element 18 or reinstalled after cleaning.
  • the filter element 18 is inserted so far with the outlet-side end plate 50 in the axial direction in the housing pot 14 until the seal 36 abuts against the sealing surface 34.
  • the housing cover 20 is placed with its open side first in the axial direction on the mounting hole 16 of the housing pot 14.
  • the connecting straps 46 are inserted into the respective tab attachment 52.
  • the housing cover 20 is thus pre-adjusted on the housing pot 14.
  • the connecting straps 46 and the tab receptacles 52 cooperate as a guide aid.
  • the guide arms 60 of the housing cover 20 engage on radially opposite sides of the leveling elements 58 from the outside.
  • the leveling elements 58 are guided along the main guide lines 62 of the guide paths 56 of the guide arms 60.
  • the side of the filter element 18 with the inlet-side end plate 74 is continuously raised during further advancement of the housing cover 20 by means of the lower guide tracks 56 in its end position.
  • the filter element 18 is positioned and centered in the housing cover 20.
  • the support element 78 is automatically inserted into the mating support groove 44 of the support pillar 42 and the secondary air duct connection 45 through the air passage 81.
  • the radially inner portion at the end of the support post 42 engages in the cavity 80 of the support member 78 a.
  • the element axis runs in the correct installed state coaxial with the housing axis.
  • the housing cover 20 is finally fixed in a manner not of further interest to the housing pot 14.
  • FIGS. 12 to 14 an air filter 10 of an internal combustion engine of a commercial vehicle according to a second exemplary embodiment is shown in different representations and assembly phases.
  • the filter housing 12 in the second embodiment no secondary air line.
  • a positioning dome 245 made of plastic is provided at the end of the support pillar 42 in the second exemplary embodiment.
  • the positioning dome 245 engages with built-filter element 18 in the air passage 81 a. It centers and positions the filter element 18 in its position transversely to the element axis.
  • the positioning dome 245 serves as a positioning device.
  • the positioning dome 245 braces the filter element 18 in the axial direction in the filter housing 12.
  • the positioning dome 245 seals the air passage 81 from.
  • the same filter element 18 can be used as in the first embodiment.
  • the Positionierdom 245 tapers at its free end, which simplifies the insertion into the air passage 81.
  • the filter element 18 is guided and positioned on the inlet-side end face 66 with the positioning dome 245 in the transverse direction, ie also radially to the filter axis 32.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtration Of Liquid (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
  • Centrifugal Separators (AREA)

Abstract

L'invention concerne un élément de filtre creux (18), en particulier un élément de filtre rond, ovale, conique, un filtre (10) pour un fluide, en particulier de l'air, de l'eau, du carburant, de l'huile ou autre une solution aqueuse d'urée, en particulier d'un un élément de filtre à air, en particulier d'un moteur à combustion interne, en particulier d'un véhicule automobile, en particulier d'un véhicule utilitaire, un boîtier (12) d'un destiné à un filtre (10) ainsi qu'un filtre (10). Un milieu filtrant (64) destiné à filtrer le fluide entoure sur toute la circonférence un espace intérieur (72) de l'élément par rapport à une poche axe (32) de l'élément. L'élément de filtre creux (18) comporte, au moins sur une face extérieure opposée à l'espace intérieur (72) de l'élément, sur une face frontale (66), au moins un élément support (78) destiné à supporter l'élément de filtre creux (18) sur un segment d'appui (42) sur le côté d'un boîtier (12) du filtre (10). L'élément de filtre creux (18) possède, sur la face frontale (66) au centre d'au moins un élément support (78), au moins un passage de fluide (81) relié à l'espace intérieur (72) de l'élément pour raccorder un raccord (45) d'une conduite de fluide secondaire (47) côté boîtier.
PCT/EP2014/060970 2013-06-20 2014-05-27 Élément de filtre creux, boîtier de filtre et filtre WO2014202359A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BR112015030223-8A BR112015030223B1 (pt) 2013-06-20 2014-05-27 Elemento oco de filtragem, alojamento de filtragem de um filtro para fluido e filtro para fluido
CN201480035077.0A CN105283659B (zh) 2013-06-20 2014-05-27 空心过滤器元件、过滤器壳和过滤器
US14/969,373 US10837414B2 (en) 2013-06-20 2015-12-15 Hollow filter element, filter housing and filter

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
DE102013010218.9 2013-06-20
DE102013010218 2013-06-20
US14/017,767 US9726123B2 (en) 2013-06-20 2013-09-04 Air filter, filter element and filter housing of an air filter
US14/017,767 2013-09-04
DE102014006853.6A DE102014006853B4 (de) 2013-06-20 2014-05-13 Hohlfilterelement, Filtergehäuse und Filter
DE102014006853.6 2014-05-13

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PCT/EP2014/060966 WO2014202358A1 (fr) 2013-06-20 2014-05-27 Élément de filtre creux, boîtier de filtre et filtre
PCT/EP2014/060970 WO2014202359A1 (fr) 2013-06-20 2014-05-27 Élément de filtre creux, boîtier de filtre et filtre
PCT/EP2014/060964 WO2014202357A1 (fr) 2013-06-20 2014-05-27 Boîtier de filtre, élément filtre creux et filtre
PCT/EP2014/062199 WO2014202450A1 (fr) 2013-06-20 2014-06-12 Élément de filtre, boîtier d'un filtre à air et filtre à air

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PCT/EP2014/062199 WO2014202450A1 (fr) 2013-06-20 2014-06-12 Élément de filtre, boîtier d'un filtre à air et filtre à air

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BR (3) BR112015031362B1 (fr)
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BR112015031362B1 (pt) 2022-05-03
WO2014202357A1 (fr) 2014-12-24
WO2014202450A1 (fr) 2014-12-24
BR112015030223B1 (pt) 2022-05-03
DE102014006852A1 (de) 2014-12-24
DE102014006853B4 (de) 2022-10-27
DE102014006853A1 (de) 2014-12-24
BR112015030223A2 (pt) 2017-07-25
BR112015030872A2 (fr) 2017-07-25
DE102014006850A1 (de) 2014-12-24
CN105283660B (zh) 2022-05-17
DE102014006850B4 (de) 2022-08-25
DE102014006852B4 (de) 2022-10-27
CN105283660A (zh) 2016-01-27
WO2014202358A1 (fr) 2014-12-24
DE102014007411A1 (de) 2014-12-24
BR112015030872B1 (pt) 2022-02-15
BR112015031362A2 (pt) 2017-07-25

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