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

• Filter housing hollow filter element and 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 utility vehicle, the at least one inlet for fluid to be cleaned and at least one outlet for comprising purified fluid and wherein a hollow filter element having a filter medium for filtering the fluid surrounding an element interior with respect to a filter axis, can be interchangeably arranged to separate the at least one inlet from the at least one outlet, the filter housing comprising at least two housing parts which can be at least partially separated from one another to release at least one installation opening of the filter housing for the hollow filter element.
• 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, the in a filter housing, in particular according to one of the preceding claims, can be arranged such that it separates at least one inlet of the filter housing for the fluid to be cleaned from at least one outlet for purified fluid, with a filter medium for filtering the fluid, which has an element interior with respect to a Surrounds the element axis circumferentially.
• 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 a filter housing which is composed of at least two housing parts, the for releasing at least one installation opening of the filter housing can be at least partially separated from each other, and in which a hollow filter element is arranged interchangeable.
• an air filter which has a housing with a raw air inlet and a clean air outlet.
• a round filter element is arranged between the unfiltered air inlet and the clean air outlet.
• the round filter element comprises a filter medium for cleaning unfiltered air.
• the housing has a housing pot with an installation opening for the round filter element. The installation opening can be closed with a housing cover. In particular, for replacement of the round filter element of the housing pot can be separated from the housing cover.
• the invention has for its object to design a filter housing, a hollow filter element and a filter of the type mentioned, in which simplifies installation of the filter and / or a particular mechanical stability of the filter can be improved.
• a connection of the housing parts should be simplified.
• a positioning and / or holding the filter element in the filter housing to be improved, in particular simplified, can be. Disclosure of the invention
• At least one of the housing parts has at least one connecting tab and at least one of the housing parts at least one matching to the at least one connecting tab tab receptacle for inserting the at least one connecting tab for connecting the housing parts.
• the at least one connecting strap can be inserted into the at least one tab receptacle for connecting the housing parts, in particular a housing cover, to a housing pot.
• at least one connecting tab and at least one tab receptacle are provided, which act as adjusting aid, connecting means and / or mechanical stabilization.
• the housing parts can be pre-adjusted during assembly. In this way, the assembly can be facilitated.
• the at least one connection tab and the at least one tab receptacle can cooperate as a guide aid in the assembly of the housing parts.
• the at least one connecting strap can improve mechanical stabilization of at least one corresponding circumferential wall section of at least one of the housing parts.
• the at least one connecting strap can support the at least one circumferential wall section at least radially to the element axis and / or to a housing axis.
• At least one of the housing parts may advantageously be made of plastic.
• at least one of the housing parts can be realized by an injection molding method or blow molding method.
• At least one of the housing parts may have an extent axially to the housing axis of 30 cm to 40 cm and more.
• the at least one tab receptacle can advantageously be a depression which is circumferentially closed with respect to its axis. In this way, the at least one connecting strap can be guided and held on all circumferential sides in the at least one tab receptacle.
• the at least one tab receptacle can advantageously have on its side facing the respective other housing part a corresponding insertion opening for the at least one connecting tab.
• the at least one tab receptacle can advantageously be integrated in a peripheral wall of the corresponding housing part.
• the at least one connecting tab and / or the at least one tab receptacle may extend parallel or axially to a mounting axis of the housing parts.
• the at least one connection tab can be easily inserted in the assembly of the housing parts in the at least one tab receptacle and guided there.
• the housing parts can be at least partially inserted into one another and / or connected to shock.
• the housing parts for opening the filter housing from each other can be completely or partially separated.
• at least the largest part of the hollow filter element in particular the largest part of the filter medium, preferably the whole filter medium, can be housed.
• This housing part may advantageously be coaxial with the housing axis.
• at least one of the housing parts of the filter housing can have an installation opening for the hollow filter element.
• the installation opening can be crossed by the filter axis in the installed state of the hollow filter element, in particular be coaxial with the filter axis.
• the installation opening may be at least as large as the largest Au chablei the hollow filter element radially to the filter axis.
• the hollow filter element can be inserted in the direction of the mounting axis in the one housing part.
• the mounting axis and / or the element axis and / or a housing axis and / or a mounting axis in which the at least two housing parts are assembled or separated, parallel or coaxial with each other.
• the installation opening for the hollow filter element can advantageously be coaxial with the housing axis.
• the filter element can be easily installed in the axial direction with respect.
• the mounting opening of the first housing part and thus the filter housing can be closed.
• a part of the hollow filter element, in particular a part of a corresponding end body, can also be accommodated in the other housing part.
• the housing parts may advantageously be provided at least one housing seal.
• an interior of the filter housing can be sealed against the environment in the transition between the two housing parts.
• the at least one housing recess tion can surround the at least one mounting opening circumferentially.
• the housing seal can advantageously be arranged in a corresponding sealing groove in one of the housing parts.
• the at least one inlet and the at least one outlet may be located on the same or on different housing parts.
• the hollow filter element at its two end sides have different respect.
• the hollow filter element can be inserted with the larger end face first in one of the housing parts. With the at least one leveling element, a size difference between the installation opening and the smaller end face of the hollow filter element can be compensated in the installed position of the hollow filter element.
• 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 of a commercial vehicle. Rather, it can also be used in other types of air systems of motor vehicles.
• the air filter may also be a cabin filter.
• the filter, in particular air filter can also au ßerraum the automotive technology, especially in industrial engines, are used.
• 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 invention can also be used for exhaust gas purification in internal combustion engines or other combustion systems.
• the at least one connecting strap can taper towards its free edge at least in one direction transverse to its extension axis.
• the insertion of the connecting strap can be simplified in the corresponding tab holder.
• the filter housing may have at least one guide track for guiding and / or supporting at least one leveling element of the hollow filter element. With the at least one leveling element, a possible height difference at the end faces of the hollow filter element can be compensated.
• the at least one guide track in particular at least one main guide line of the at least one guideway, can define a path of a contact point or contact area of the leveling element when sliding against the guideway when the hollow filter element is inserted into one of the housing parts or when one of the housing parts is placed on the hollow filter element.
• the at least one connecting strap can be arranged with the filter housing mounted on the same circumferential side of the filter housing as the at least one leveling element. In this way, the at least one leveling element can press against the at least one peripheral wall section of at least one of the housing parts from the inside, and the at least one connecting strap and / or the corresponding tab receptacle can withstand from outside.
• the at least one connecting plate can be arranged with the housing mounted on the same circumferential side of the filter housing, as possibly the at least one guide track for the at least one leveling element.
• the connecting strap / tab receptacle and the corresponding leveling element / guide track can advantageously be arranged circumferentially offset from one another.
• the at least one guide track can be arranged radially with respect to the element axis / housing axis between the at least one leveling element and the at least one connecting link / tab receptacle.
• the at least one guideway can be supported against a pressure of the at least one leveling element.
• at least one housing part in particular a housing cover, having at least one guideway.
• the at least one guideway may advantageously extend exclusively in one of the housing parts.
• the at least one guideway can extend at least with at least one imaginary main guidance line in a plane with the installation axis of the hollow filter element into the housing part, in particular the housing cover, and / or the mounting axis between the housing parts.
• a base surface of the installation opening may be oblong, in particular oval.
• the main guide line of the at least one guideway can be located in a secondary plane with a minor axis of the base of the installation opening and the installation axis.
• a base surface of the installation opening may be oblong, in particular oval, and the at least one connection tab and the at least one tab receptacle may be at least partially on and / or adjacent to a minor plane having a minor axis of the base of the mounting opening and an installation axis of the hollow filter element in FIG If necessary, the opposing connection straps / tab receptacles can be located at least partially on / next to the secondary plane.
• the at least one connecting tab and the at least one tab receptacle can be located on a long side of the filter housing which is oblong in cross-section.
• the at least one connection tab and the at least one tab receptacle with respect to the housing axis can be centrally located, in particular in or near the center, on the long side.
• the main guide line of the at least one guide track can be located in a secondary plane with a minor axis of the base of the installation opening and the installation axis.
• the main guide lines of the possible opposite guide tracks can each be in the secondary plane.
• the at least one guide track may extend into a region outside an interior of the corresponding housing part, in particular of the housing cover.
• At least one guide arm can be provided on which at least one guideway can be realized.
• the at least one guide arm can advantageously protrude out of the interior of the corresponding housing part, in particular of the housing cover. In this way, the corresponding at least one leveling element can be guided on the at least one guide arm before the hollow filter element dips into the housing part.
• the interior of the housing part with the at least one guideway can advantageously at least form an inlet space section for admitting the fluid.
• the at least one guide arm can be bevelled outside the housing part on a peripheral side facing the housing axis.
• the bevelled peripheral side forms the at least one guideway.
• the at least one guideway can thus be seen in the direction of the housing axis on the interior of the housing part to run on the housing axis. In this way, the insertion or placement of the at least one leveling element can be simplified.
• At least two guide tracks with respect to the filter axis can be located on diagonally opposite radially inner circumferential sides of one of the housing parts, in particular of the housing cover.
• the hollow filter element can be uniformly guided, centered and / or held by means of correspondingly opposing leveling elements in the filter housing.
• the main guide lines of the opposite guideways can each be in the secondary plane with the minor axis of the base of the mounting hole and the mounting axis.
• At least one support section for supporting at least one support element of the hollow filter element with respect to the housing axis, which may coincide with the element axis when the hollow filter element is installed, can be arranged centrally in the filter housing.
• the at least one support portion cooperate with assembled filter with at least one support element of the hollow filter element.
• the positioning of the hollow filter element and / or the assembly of the at least one support element with the at least one support section can be simplified.
• the at least one support section can be located on or in one of the housing parts.
• the at least one support section and the at least one support element can be brought together in the installation of the hollow filter element in one of the housing parts and / or in the assembly of the housing parts.
• a mounting of the filter can be simplified.
• the at least one support section may be arranged on a raw fluid side of the hollow filter element.
• at least one support section may be arranged on a clean fluid side.
• the hollow filter element with its end face, which is opposite to the at least one support element, supported on the other housing part.
• the at least one support element and the at least one support section can have no sealing function.
• the sealing function may be associated with at least one other component pairing and optimized for itself, which is separated from the at least one support element and the at least one support portion.
• the at least one support section may have at least one cylindrical and / or at least one conical section.
• a main axis of the at least one 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 inserted on and / or in the at least one support section.
• the main axes of the at least support member and the at least one support portion with built-hollow filter element parallel or axially to the mounting axis of the hollow filter element relative to the filter housing and / or to the mounting axis of the housing parts, 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 brought into relation automatically during installation of the hollow filter element in the filter housing and / or during assembly of the housing parts.
• the at least one support element may be at least partially complementary to the at least one support section.
• the at least one support element can lie flat against the at least one support section. In this way, simply a reliable and stable Abstützung transversely, in particular radially and / or tangentially to the element axis and / or the housing axis done.
• the at least one support portion may advantageously have an oval, flat-oval or round base.
• the at least one support section may also have a different, in particular an angular, base area.
• the at least one support section may have an end-side receptacle, in particular a groove, at least for a section of the at least one support element.
• the groove may advantageously extend circumferentially with respect to the main axis of the at least one support portion.
• 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 support section may be a kind of pillar or dome, comprising it or forming part of it.
• the at least one support element of the hollow filter element can be supported.
• the pillar or dome can be connected to the filter housing, in particular to the housing part, which has the at least one guideway for the at least one leveling element. 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 flowed through during operation of the filter of fluid.
• the space section may be an inlet space section or an outlet space section. The object is further achieved by the hollow filter element in that the hollow filter element with respect.
• the element axis radially au Shen at least one leveling element in a region which overlaps a portion of the filter housing in the installed state of the hollow filter element or adjacent thereto, in / at least one Connecting tab and / or arranged at least one tab receptacle for connection of the housing parts.
• the expansion of the filter medium at least in a direction radially to the element axis at a first of its end faces may be smaller than at a second of its end faces.
• the filter medium can have a first end body at least on the smaller front side.
• the at least one leveling element can be arranged on a first end body of the hollow filter element with respect to the element axis, in particular the filter axis, radially outward.
• the first end body with respect.
• the hollow filter element can thus be aligned in the filter housing.
• the element axis can be aligned parallel or coaxially to the filter axis and / or to the housing axis.
• different heights can be compensated in this way at the different sized end faces.
• the at least one leveling element may be at least partially elastic.
• the hollow filter element can be easily fixed in the filter housing.
• the at least one leveling element can yield during the assembly of the filter and be pressed.
• any tolerances, in particular production-related and / or component-related and / or assembly-related and / or operational tolerances, of the hollow filter element in the filter housing can be easily compensated.
• the at least one leveling element can additionally serve as a vibration damper, in particular during operation of the air filter.
• the at least one leveling element can advantageously be at least partially rigid. This can result in advantages when installing the filter. With a rigid leveling element, a more accurate and easier guidance can take place on a corresponding housing-side guide section.
• the leveling element can advantageously serve as a spacer.
• radial distance between the radially externa ßeren peripheral side of the first end body and a corresponding opposite portion of the filter housing can be realized.
• a gap can be realized between the filter element in the region of the smaller end face and a filter element radially outer radially surrounding outer wall of the filter housing.
• fluid can enter into or out of the space radially surrounding the filter medium.
• 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 at the radially externa ßeren peripheral side of the filter element In the flow direction through the filter medium from radially au Shen radially inward is the inflow side of the filter medium at the radially externa ßeren peripheral side of the filter element.
• the downstream side of the 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 first end body may advantageously be or at least have an end plate.
• the filter medium With the first end body, the filter medium can be stabilized. Furthermore, the filter medium can be sealed with the first end body on the smaller end face.
• the element interior can be closed at the smaller end face of the filter element with the first end body.
• a flow of fluid from the element interior or in the element interior can be prevented there.
• the fluid can pass through the filter medium from radially outside to radially inside into the element interior or in the opposite direction out of this.
• the fluid can flow through a corresponding flow opening on the other end face of the filter element in the element interior or out of this.
• 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 in the axial direction Element axis tapers, a conical-oval round filter element, in which the oval cross section in the axial direction to the element axis at least in the direction of a transverse axis tapered, a conical flat-oval round filter element in which the flat-oval cross-section tapers in the axial direction to the element axis at least in the direction of a transverse axis, or a hollow filter element with a different, in particular an angular, cross-section and / or a different cross-sectional variation in direction the element axis, act.
• the at least one leveling element can advantageously be arranged on a long, in particular flat, side of an oval, in particular flat-oval, round filter element.
• the at least one leveling element can advantageously be arranged on the tapered end face of a conical, in particular conical-oval or flat conical-oval, round filter element.
• the first end body can in each case have a leveling element with respect to the element axis in the at least one direction of the smaller extent of diagonally opposite circumferential sides.
• the first end body 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.
• a base surface of the hollow filter element at least in the region of the smaller end face be elongated, in particular oval, and an imaginary center of the at least one Nivellie- relement can be located on a minor axis of an imaginary plane which is parallel to the base surface of the hollow filter element.
• the centers of opposing leveling elements may each be on the minor axis.
• the first end plate can be supported approximately centrally on their respective long sides.
• a support and / or leadership can be improved.
• the minor axis is the short axis of the elongated area through its center.
• the major axis is the long axis of the elongated surface through its center.
• the at least one leveling element may extend at least radially, in particular radially and axially, outward 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 at least one end body relative to the element axis can be counteracted.
• a distance of a radially outer peripheral side of the at least one leveling element from the element axis may correspond approximately to a distance of the corresponding radially outer peripheral side of the hollow filter element from the element axis at the larger end face.
• the hollow filter element can be aligned with its element axis uniformly parallel or coaxially to the housing axis.
• a distance of the radially externa ßeren peripheral side of the at least one leveling element of the element axis be greater than a corresponding distance of the radially externa ßeren peripheral side of the hollow filter element, in particular a local end body, at the larger end face. In this way, different diameters of the filter housing can be compensated at the respective end faces of the hollow filter element.
• the at least one leveling element in the end installation position of the hollow filter element can be arranged in a filter housing of the filter in its usual operating position spatially down.
• the at least one leveling element can support the hollow filter element against the force of gravity against the filter housing.
• the at least one direction of the smaller extent in the final installation position can be spatially vertical in the usual operating position.
• the element axis in the installed position in the usual operating position can be spatially horizontal.
• the hollow filter element on a side facing away from the element interior Au side on an end face have at least one support element.
• the at least one support element and thus the hollow filter element can be supported 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.
• the hollow filter element can be additionally 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.
• the axial position of the Hohlfil- terelements 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.
• At least one support element can be arranged centrally with respect to the element axis on the smaller end face of the hollow filter element.
• the hollow filter element can be supported centrally in this way. In this way, with only one support element and only one corresponding support section, improved support of the hollow filter element on the filter housing can take place.
• the Abstützung 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, with the at least one support element just any installation tolerances of Hollow filter element can be compensated in the filter housing. Furthermore, the at least one support element can additionally serve as a vibration damper, in particular during operation of the filter.
• 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 support element can be supported against at least one corresponding support section on the side of the filter housing transversely and / or axially to the element axis.
• the at least one support element can 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 at least one support element may have a cavity open to the at least one support section of the filter housing. In the cavity, a corresponding projection of the at least one support portion can dip. In this way, the support can be improved.
• the hollow-cylindrical or sleeve-like section of the at least one support element can advantageously be plugged into a corresponding end-side receptacle, in particular groove, of the at least one support section when the hollow filter element is mounted correctly.
• the groove can be considered as a cavity of the support portion, which is open to the free end side of the support portion.
• the at least one support element can be arranged on the first end body of the hollow filter element.
• the technical problem is solved in the filter according to the invention in that at least one of the housing parts at least one connecting tab and at least one of the housing parts has at least one suitable for the at least one connecting tab tab receptacle for inserting the at least one connecting tab for connecting the housing parts.
• 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 section through the element space section into the outlet space section 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 with a composite of a housing pot and a housing cover filter housing in which an exchangeable conical-oval round filter element is arranged;
• Figure 2 is a cross-sectional view of the air filter of Figure 1 along the section line I I-I I there;
• Figure 3 is a longitudinal section of the air filter of Figure 1 taken along the section line II I-I I I;
• Figure 4 is a first isometric oblique view of the air filter of Figures 1 to 3;
• Figure 5 is a second isometric oblique view of the air filter of Figures 1 to 4;
• Figure 6 is an isometric view of the open housing pot of the air filter of Figures 1 to
• Figure 7 is an isometric view of the open housing pot of the air filter of Figures 1 to
• Figure 8 is an isometric view of the open housing pot of the air filter of Figures 1 to
• Figure 9 is an isometric view of the housing cover of the air filter of Figures 1 to 5 with the round filter element without housing pot;
• Figure 10 is an isometric view of the housing cover of the air filter of Figures 1 to 5 without round filter element;
• Figure 1 1 is the isometric view of the housing cover of Figure 10 from a different perspective
• FIG. 12 shows a side view of the air filter from FIGS. 1 to 5 in an early assembly phase of FIG
• Figure 13 is a plan view of the air filter in the assembly phase of Figure 12;
• FIG. 14 shows a plan view of the air filter in an assembly phase following one of the assembly phases shown in FIG. 13;
• Figure 15 is an isometric view of the round filter element of the air filter of Figures 1 to 5;
• FIG. 16 shows a transverse longitudinal section of the round filter element of the air filter from FIGS. 1 to 5;
• Figure 17 is a longitudinal side view of the round filter element of the air filter of Figures 1 to 5;
• Figure 18 is a transverse side view of the round filter element of the air filter of Figures 1 to 5;
• 19 shows a top view of an inlet-side end disk of the round filter element of the air filter from FIGS. 1 to 5.
• FIGS. 1 to 14 show an air filter 10 of an internal combustion engine of a commercial vehicle in different representations and assembly phases.
• 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.
• FIG. 3 shows a section along a short transverse axis of the filter housing 12.
• the filter housing 12 has a housing pot 14, in Figs. 1 and 3 on the left.
• the housing pot 14 has a mounting opening 16, which is shown for example in Figs. 6 to 8 in the foreground, for installation of a filter element 18.
• the mounting opening 16 is closed with a housing cover 20, in Figure 1 right.
• 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 to the 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 section 28 of the housing cover 20 and is connected outside the filter housing 12 to 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 axially of a filter axis 32 in series.
• the filter axis 32 is shown for the sake of better understanding, although it is located outside the sectional plane II-I I of FIG. 1, namely in front of the plane of the drawing.
• 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, the Schreibung explained embodiment, the above enumerated axes briefly referred to as "filter axis 32".
• the mounting aperture 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 oblong flat-oval. In the end face of the free edge of the housing cover 20, a sealing groove 33, in particular shown in FIGS. 3 and 9 to 11, is arranged with a housing seal.
• the housing seal is close to the corresponding end face of the free edge of the housing pot 14 and surrounds the mounting hole 16 circumferentially closed.
• 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.
• At the sealing surface 34 is a seal 36 of the filter element 18 circumferentially closed tightly against.
• the radially inner cross section of the element space portion 30 is larger than a radially outer ßerer cross section of the sealing surface 34th
• Anströmringraum 38 is realized between a radially externa ßeren 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 support post 42 is arranged on the housing cover 20.
• the pillar 42 is integrally connected to the housing cover 20. He is approximately coaxial with the filter axis 32. He is with respect to the filter axis 32 centrally located.
• 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 housing pot 14 also has two connecting straps 46 for connection to the housing cover 20.
• the connecting straps 46 are located on the opposite with respect to the filter axis 32 opposite flattened peripheral sides of the housing pot 14. They are each with one end in one piece at the free peripheral edge of the housing pot 14, which surrounds the mounting hole 16, attached.
• the seemsla- see 46 extend parallel to the mounting axis of the housing cover 20 with the housing pot 14, so parallel to the filter axis 32. Thought central axes of the connecting plates 46 are in an imaginary plane with the filter axis 32. This imaginary plane is considered in the direction of the filter axis 32 inclined relative to another imaginary plane with a minor axis of the oval installation opening 16. The imaginary central axes of the connecting straps 46 are therefore, as can be seen for example in FIG. 2, laterally offset on opposite sides relative to the minor axis.
• the mutually facing inner sides of the connecting straps 46 are smooth.
• the inner sides of the connecting straps 46 each form an initial section of corresponding guide ramps 48.
• the guide ramps 48 continue on the inner side of the housing pot 14.
• respective radially outer peripheral 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 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 with respect to the filter axis 32 opposite flattened peripheral sides of the housing cover 20. Each of which are arranged in one piece 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.
• the tab receptacles 52 are with respect. Their respective central axis, which are parallel to the filter axis 32, circumferentially closed depressions.
• the connecting straps 46 are held in each case on all circumferential sides in the corresponding tab receptacle 52.
• the tab receptacles 52 have on their side facing the housing pot 14 a corresponding insertion opening 54 for the corresponding connection tab 46.
• the sealing groove 33 rotates the tab receptacles 52 radially Shen Shen. Thus, the interiors of the tab receptacle 52 are sealed to the environment.
• the connecting straps 46 mechanically stabilize the peripheral wall sections of the housing cover 20.
• the connecting straps 46 support the peripheral wall sections radially to the filter axis 32, ie 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.
• the guideways 56 can be seen for example in Figures 9 to 1 1.
• the guide tracks 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 respectively opposite longitudinal sides of the guide arms 60 form the corresponding guide tracks 56.
• 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 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 in FIGS. 15 to 19 in different perspectives and sections.
• 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, ie the minor axis, of the oval lies in the plane of the drawing of FIG. 15, the long transverse axis, that is to say the main axis, is perpendicular to the plane of the drawing.
• the filter element 18 is additionally flattened, hence the term "flat conical-oval".
• oval denotes an approximately elliptical cross-section.
• a radially externa ßere peripheral side and a radially inner peripheral side of the filter element 18 in the direction of the filter axis 32 each have a conical shape.
• the Au OHquer4.000 and the inner cross section of the filter element 18 taper from its the Auslassraumabêt 24 facing, outlet-side end face 68 to the inlet-side end face 66 back.
• 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 comprises a filter cell zigzag folded into a filter bellows, with respect to the element axis, that is to say 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 disk 50 is coaxial with the filter axis 20.
• the outlet-side end disk 50 is made of a plastic. It is glued tightly to the end face 68 of the filter medium 64.
• the radially externa ßere peripheral side of the outlet-side end plate 50 is 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, connected to the outlet space portion 24.
• the seal 36 is arranged.
• the seal 36 is made of elastic polyurethane foam. It is foamed to the outlet-side end plate 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. 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 latticed built up. 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 peripheral side of the filter medium 64 may be supported on the radially externa ßeren peripheral side of the support tube 76.
• a support member 78 is arranged on the element interior 72 facing away from the axial Au JO ,seite 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 firmly connected to the inlet-side end plate 74.
• the support element 78 is made of an elastic polyurethane foam.
• the support element 78 is foamed onto the inlet-side end disk 74.
• 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.
• the support element 78 has an approximately oval cross-section. Its short transverse axis lies in the drawing plane in FIG. 16, its long transverse axis being perpendicular to the plane of the drawing.
• 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 member 78 is inserted into the Jacobstütznut 44 of the support post 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, ie transversely to the element axis and the housing axis, and axially.
• 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 kept in the filter housing 12 on the side facing the inlet space section 28.
• two Abstützstege 82 are arranged at the radially outer ßeren edges of the inlet-side end plate 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 Abstützstege 82 are based in each case on corresponding, inter alia, in Figures 3, 10 and 1 1 shown, supporting points 83 on the inside of the housing cover 20 in the radial direction.
• the leveling elements 58 already mentioned above are located on the inlet-side end disk 74 with respect to the element axis, that is to say the filter axis 32, radially outside.
• the leveling elements 58 are made of polyurethane ethane. They are integrally connected to the inlet-side end plate 74.
• 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 18. In the direction of the minor axis of the filter bellows of the filter element 18 at the inlet side end face 66 has a smaller radial extent than at the outlet side end face 68.
• the minor axis is located 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 center.
• the leveling elements 58 each extend radially and axially outward Shen via the radially outer ßere peripheral side of the filter bellows of the filter medium 64 and the inlet-side end plate 74th
• One of the leveling elements 58 is in the final installation position of the filter element 18 in the filter housing 12 in its usual operating position arranged spatially below.
• the other leveling element 58 is spatially above, vertically above the first leveling elements 58, arranged.
• leveling elements 58 is a respect to the filter axis 32 uniform radial distance between see the radially outer circumference of the inlet-side end plate 74 and an opposite radially inner circumference of the housing cover 20 to form the gap 40 realized.
• the tab receptacles 52 with the connecting straps 46 are each arranged approximately on the same circumferential side of the filter housing 12 when mounted filter housing 12 as one of the guideways 56 for one of the leveling elements 58.
• the tab receptacles 52 / connecting straps 46 and the corresponding leveling elements 58 / guideways 56 circumferentially offset from one another, wherein the tab receptacles 52 / connecting plates 46 overlap considered with the corresponding leveling elements 58 / guideways 56 in the radial direction.
• the guideways 56 are each arranged between one of the leveling elements 58 and one of the tab receptacle 52 / connecting link 46.
• 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 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. From there, the air passes substantially in the axial direction through the gap 40 in the Anströmringraum 38 on the The inflow side of the filter medium 64. The air flows through the filter medium 64 from radially au Shen radially inward 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.
• the filtered air leaves the filter housing 12 through the outlet 22, indicated by arrow 86.
• 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 is automatically pulled out of the Jacobstütznut 44 at the end of the support post 42 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 out of the element space section 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. Subsequently, 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 tabs 46 are inserted into the respective tab receptacle 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 engage on radially opposite sides of the leveling elements 58 from the outside Shen.
• the leveling elements 58 are then 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 of the housing cover 20 is automatically inserted into the mating support groove 44 of the support pillar 42.
• 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.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
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• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• Chemical Kinetics & Catalysis (AREA)
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