DE102008036913B3 - Air filter system for internal combustion engine, has frame, in which plate-shaped filter element is inserted, which has raw air side - Google Patents
Air filter system for internal combustion engine, has frame, in which plate-shaped filter element is inserted, which has raw air side Download PDFInfo
- Publication number
- DE102008036913B3 DE102008036913B3 DE200810036913 DE102008036913A DE102008036913B3 DE 102008036913 B3 DE102008036913 B3 DE 102008036913B3 DE 200810036913 DE200810036913 DE 200810036913 DE 102008036913 A DE102008036913 A DE 102008036913A DE 102008036913 B3 DE102008036913 B3 DE 102008036913B3
- Authority
- DE
- Germany
- Prior art keywords
- air
- filter element
- frame
- filter system
- housing
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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
-
- 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
- B01D46/0006—Filter elements or cartridges installed in a drawer-like manner
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- F02M35/10—Air intakes; Induction systems
- F02M35/10006—Air intakes; Induction systems characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber
- F02M35/10013—Means upstream of the air filter; Connection to the ambient air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2273/00—Operation of filters specially adapted for separating dispersed particles from gases or vapours
- B01D2273/10—Allowing a continuous bypass of at least part of the flow, e.g. of secondary air, vents
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
Description
Die Erfindung betrifft ein Luftfiltersystem für eine Brennkraftmaschine. Derartige Luftfiltersysteme sind aus dem Stand der Technik in vielfältiger Art und Weise bekannt.The The invention relates to an air filter system for an internal combustion engine. Such air filter systems are of the prior art in many ways and way known.
Aus
der
Aus
der
Aus
der
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, ein Luftfiltersystem mit einem flachen, plattenartigen Filterelement bereitzustellen, dass möglichst kompakt baut und das dennoch Maßnahmen vorsieht, um einem Zusetzen des Filterelements mit Schnee und/oder Eis entgegenzuwirken.Of the present invention is based on the object, an air filter system to provide with a flat, plate-like filter element, that possible Compact builds and yet measures provides for clogging the filter element with snow and / or To counteract ice.
Diese Aufgabe wird durch ein Luftfiltersystem mit den Merkmalen des Anspruchs 1 gelöst. Ein solches Luftfiltersystem sieht folglich einen Rahmen vor, in den ein plattenartig ausgebildetes Filterelement einsetzbar ist, welches eine Rohluftseite, eine im Wesentlichen parallel dazu angeordnete Reinluftseite und im Wesentlichen senkrecht dazu verlaufende Schmalseiten aufweist, und mit einem Gehäuse, in welches der Rahmen samt Filterelement einführbar ist. Für den Fall, dass das Filterelement eine rechteckige Grundfläche vorsieht, sind insgesamt vier Schmalseiten vorhanden, zwei parallel zueinander verlaufende Längsschmalseiten und zwei, zu den Längsschmalseiten jeweils senkrecht verlaufende Querschmalseiten. Ferner ist wenigstens ein Bypassventil vorgesehen, über das im geöffneten Zustand Warmluft in dem zwischen dem Gehäuse oder dem Rahmen und wenigstens einer Schmalseite liegenden Bereich derart gelangt, dass die Warmluft von dort durch die Schmalseite in das Filterelement einströmt und durch die Reinluftseite aus dem Filterelement ausströmt.These The object is achieved by an air filter system having the features of the claim 1 solved. Such an air filter system thus provides a framework in a plate-like trained filter element is used, which is a rough air side, a substantially parallel thereto Clean air side and substantially perpendicular to narrow sides has, and with a housing, in which the frame including filter element is insertable. In the case, that the filter element provides a rectangular base are four in total Narrow sides present, two parallel longitudinal sides and two, to the longitudinal narrow sides each vertical transverse narrow sides. Furthermore, at least a bypass valve provided over that in the open Condition hot air in the between the housing or the frame and at least a narrow side lying area passes such that the hot air of there flows through the narrow side into the filter element and through the clean air side flows out of the filter element.
Ein
derartiges Luftfiltersystem hat den Vorteil, dass trotz Verwendung
eines plattenartigen Filterelements eine vorteilhafte und insbesondere
sehr bauraumsparende Belüftung
bei zugesetztem Filterelement durch geeignete Warmluft erfolgen
kann. Dadurch dass die Warmluft in den seitlichen Bereich des Filterelements
geleitet wird, geht durch Vorsehen der Warmluftzuführung keine
Filterfläche
verloren, wie es beispielsweise bei der
Eine vorteilhafte Ausgestaltung der Erfindung sieht vor, dass bei eingesetztem Filterelement Dichtmittel zum Abdichten der Schmalseite hin zum Rahmen und/oder zum Gehäuse gegenüber der Rohluftseite und der Reinluftseite vorgesehen sind. Hierdurch ergibt sich folglich ein abgedichteter Spaltraum zwischen dem Rahmen und/oder dem Gehäuse und der Schmalseite, wobei die Dichtmittel rahmen-, gehäuse- und/oder filterelementseitig vorgesehen sein können. Dies hat den Vorteil, dass beim Öffnen des Bypassventils die einströmende Luft in die Schmalseite des Filterelements zwangsgeführt wird. Insofern wird gewährleistet, dass die Warmluft das Filterelement wenigstens abschnittsweise passiert. Die Dichtmittel können dabei insbesondere an den Kanten an das Filterelement angeformt sein. Insbesondere kann sich der ergebende Spaltraum um sämtliche Schmalseiten des Filterelements erstrecken, so dass sich ein umlaufender Ringspalt ergibt. Hierdurch kann die Warmluft vorzugsweise das Filterelement entlang den umlaufenden Schmalseiten umströmen.A advantageous embodiment of the invention provides that when inserted Filter element Sealant for sealing the narrow side to the frame and / or to the housing across from the raw air side and the clean air side are provided. hereby Consequently, there is a sealed gap between the frame and / or the housing and the narrow side, wherein the sealant frame, housing and / or can be provided filter element side. This has the advantage that when opening the Bypass valves the inflowing Air is forced into the narrow side of the filter element. insofar is guaranteed that the hot air passes through the filter element at least in sections. The Sealants can thereby formed in particular at the edges of the filter element be. In particular, the resulting gap space around all Narrow sides of the filter element extend, so that a circumferential Annular gap results. As a result, the hot air is preferably the filter element flow around the circumferential narrow sides.
Ferner ist erfindungsgemäß denkbar, dass das Bypassventil druckgesteuert ist und im Betrieb des Luftfiltersystems zum Ansaugen von Warmluft dann öffnet, wenn der Strömungswiderstand des Filterelements aufgrund sich an der Rohluftseite ansammelndem Schnee und/oder Eis einen Grenzwert überschreitet. Steigt folglich der Ansaugdruck auf der Reinluftseite aufgrund des sich erhöhenden Strömungswiderstandes, so öffnet das Bypassventil.Further is conceivable according to the invention, that the bypass valve is pressure-controlled and during operation of the air filter system for warm air then opens, if the flow resistance the filter element due to accumulating on the raw air side Snow and / or ice exceeds a threshold. Rises, therefore the suction pressure on the clean air side due to the increasing flow resistance, so opens the bypass valve.
Das wenigstens eine Bypassventil kann vorteilhafterweise in einem bei eingesetztem Filterelement der Schmalseite benachbartem und parallel zur Schmalseite verlaufenden Ventilabschnitt des Gehäuses angeordnet sein. Das Bypassventil ist dabei vorzugsweise in den Ventilabschnitt integriert, wobei das Gehäuse samt Ventilabschnitt aus Kunststoff ausgebildet sein kann.The At least one bypass valve can advantageously in one at inserted filter element of the narrow side adjacent and parallel arranged to the narrow side valve portion of the housing be. The bypass valve is preferably in the valve section integrated, with the housing can be formed with plastic valve section.
Dabei ist vorteilhaft, wenn der Rahmen in dem Bereich, der bei in das Gehäuse eingesetztem Rahmen dem Ventilabschnitt benachbart angeordnet ist, Ansaugaussparungen aufweist. Die Warmluft, die durch das wenigstens eine Bypassventil strömt, kann dann durch die Ansaugaussparungen in den Bereich zwischen der Schmalseite des Filterelements und des Rahmens gelangen.It is advantageous if the frame has suction recesses in the region which is arranged adjacent to the valve section when the frame is inserted into the housing. The hot air flowing through the at least one bypass valve can then pass through the suction recesses in the area between the narrow side of the filter element and the frame.
Um zu gewährleisten, dass lediglich Warmluft angesaugt wird, ist vorteilhaft, wenn zwischen dem den Ventilabschnitt umgebenden Bereich des Gehäuses und dem Bereich des Rahmens, an dem die wenigstens eine Ansaugaussparungen vorgesehen ist, Dichtmittel vorgesehen sind. Die Dichtmittel sind dabei vorteilhafterweise so ausgelegt, dass, wie bereits erwähnt, ausschließlich Warmluft angesaugt wird, so dass keine Kaltluft zwischen dem Gehäuse, dem Rahmen und/oder dem Filterelement mit angesaugt wird.Around to ensure, that only warm air is sucked in, is advantageous if between the surrounding the valve portion of the housing and the area of the frame, where the at least one Ansaugaussparungen is provided, sealing means are provided. The sealing means are advantageously so designed that, as already mentioned, exclusively Warm air is sucked in, so that no cold air between the housing, the Frame and / or the filter element is sucked with.
Das Filterelement kann dabei insbesondere aus einem gefalteten Material bestehen. Die Längsachse des Bypassventils und/oder der Ansaugaussparung ist dann vorteilhafterweise parallel zur Falzrichtung des gefalteten Materials verlaufend angeordnet. Hierdurch wird erreicht, dass die angesaugte Warmluft vorteilhaft in das gefaltete Filtermaterial einströmen kann, um dieses möglichst rasch zu erwärmen.The Filter element may in particular of a folded material consist. The longitudinal axis the bypass valve and / or the Ansaugaussparung is then advantageously arranged to extend parallel to the folding direction of the folded material. This ensures that the sucked hot air advantageous can flow into the folded filter material to this possible to warm up quickly.
Vorteilhafterweise ist da Bypassventil als federbeaufschlagtes Pilz- oder Kappenventil ausgebildet. Diese Ventile lassen sich vergleichsweise kostengünstig realisieren und arbeiten dennoch funktionssicher.advantageously, there is a bypass valve as a spring-loaded mushroom or cap valve educated. These valves can be realized comparatively inexpensively and still work reliably.
Denkbar ist, dass mehrere Bypassventile nebeneinander entlang einer Linie angeordnet sind. Für den Fall, dass ein Ventil nicht schalten sollte, kann Warmluft durch ein anderes Ventil einströmen.Conceivable is that several by-pass valves side by side along a line are arranged. For the If a valve should not switch, hot air can pass through flow in another valve.
Ferner ist denkbar, dass am Gehäuse ein Abdeckelement zur Abdeckung des wenigstens einen Bypassventils vorgesehen ist. Das Abdeckelement ist dabei vorzugsweise so ausgestaltet, dass es als Leit- oder Umlenkmittel zur Einleitung von Warmluft dient. Insbesondere kann es auch als Anschlussmittel zum Anschließen eines Warmluftkanals ausgebildet sein, mit dem Warmluft, von dort, wo Warmluft vorhanden ist, beispielsweise am Krümmer der Brennkraftmaschine, hin zum Filterelement geleitet werden.Further it is conceivable that on the housing a cover member for covering the at least one bypass valve is provided. The cover element is preferably designed in this way that it as a guide or deflection for the introduction of hot air serves. In particular, it can also be used as connection means for connecting a Warm air ducts be formed with the hot air, from where Warm air is present, for example, on the manifold of the internal combustion engine, directed to the filter element.
Weitere Einzelheiten und vorteilhafte Ausgestaltungen der Erfindung sind der nachfolgenden Beschreibung zu entnehmen, anhand derer die in den Figuren dargestellte Ausführungsform der Erfindung näher beschriebe und erläutert ist.Further Details and advantageous embodiments of the invention are the following description, based on which the in Figures illustrated embodiment closer to the invention describe and explain is.
Es zeigen:It demonstrate:
Das
in der
Im
seitlichen Bereich weist das Gehäuse
Der
Rahmen
Im
Längsschnitt
gemäß
Der
Rahmen
In
Im
Schnitt gemäß
Im
Längsschnitt
gemäß
Die
Funktionsweise des Luftfiltersystems
Dadurch,
dass die Warmluft in den seitlichen Bereich des Filterelements
Claims (11)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810036913 DE102008036913B3 (en) | 2008-08-01 | 2008-08-01 | Air filter system for internal combustion engine, has frame, in which plate-shaped filter element is inserted, which has raw air side |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200810036913 DE102008036913B3 (en) | 2008-08-01 | 2008-08-01 | Air filter system for internal combustion engine, has frame, in which plate-shaped filter element is inserted, which has raw air side |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102008036913B3 true DE102008036913B3 (en) | 2009-11-26 |
Family
ID=41212812
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200810036913 Expired - Fee Related DE102008036913B3 (en) | 2008-08-01 | 2008-08-01 | Air filter system for internal combustion engine, has frame, in which plate-shaped filter element is inserted, which has raw air side |
Country Status (1)
Country | Link |
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DE (1) | DE102008036913B3 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009048209A1 (en) * | 2009-10-05 | 2011-04-07 | Mann + Hummel Gmbh | Air filter for an internal combustion engine |
DE102009058161A1 (en) * | 2009-12-15 | 2011-06-16 | Mann + Hummel Gmbh | Intake device of an internal combustion engine |
DE102010035353A1 (en) * | 2010-08-24 | 2012-03-01 | Mann + Hummel Gmbh | Air intake filter for an internal combustion engine |
CN102418630A (en) * | 2011-12-15 | 2012-04-18 | 江门市大长江集团有限公司 | Air filter |
EP2685081A1 (en) * | 2012-07-09 | 2014-01-15 | MANN+HUMMEL GmbH | Air cleaner in particular of an internal combustion engine |
WO2016092362A1 (en) * | 2014-12-10 | 2016-06-16 | Ufi Filters S.P.A. | A filter group of air directed to an air aspiration intake of an internal combustion engine |
US9567949B2 (en) | 2015-01-09 | 2017-02-14 | Mann+Hummel Gmbh | Air cleaner in particular of an internal combustion engine |
DE102020121710A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter system and filter element |
WO2022038142A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter element and filter system |
DE102020121712A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter element and filter system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3911153C2 (en) * | 1989-04-06 | 1992-01-23 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De | |
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DE20002344U1 (en) * | 2000-02-10 | 2000-08-10 | Schmitt Peter | Air filters for internal combustion engines |
DE10053145A1 (en) * | 2000-10-26 | 2002-05-08 | Mann & Hummel Filter | Air inlet system for engine with protection against snow and water ingress, closes valve in main inlet when pressure differential across filter becomes excessive |
DE10240473A1 (en) * | 2002-09-03 | 2004-03-11 | Dr.Ing.H.C. F. Porsche Ag | Air intake system for internal combustion engine has filter element cavity bounded by two endface apertures, one monitored by closing element |
DE10332453A1 (en) * | 2003-07-17 | 2005-02-03 | Bayerische Motoren Werke Ag | Air filter housing for internal combustion engine, comprises first and second air inlet openings having corresponding filter sections which are separated by a wall |
DE102004036083A1 (en) * | 2004-07-24 | 2006-02-16 | Audi Ag | Suction device for internal combustion engine has air filter which separates a raw air duct and pure air duct whereby air filter has two filter zones, which are arranged in common casing, and have different flow resistances |
-
2008
- 2008-08-01 DE DE200810036913 patent/DE102008036913B3/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3911153C2 (en) * | 1989-04-06 | 1992-01-23 | Filterwerk Mann & Hummel Gmbh, 7140 Ludwigsburg, De | |
DE4413765A1 (en) * | 1993-05-11 | 1994-11-17 | Mann & Hummel Filter | Air filter for internal combustion engines |
DE20002344U1 (en) * | 2000-02-10 | 2000-08-10 | Schmitt Peter | Air filters for internal combustion engines |
DE10053145A1 (en) * | 2000-10-26 | 2002-05-08 | Mann & Hummel Filter | Air inlet system for engine with protection against snow and water ingress, closes valve in main inlet when pressure differential across filter becomes excessive |
DE10240473A1 (en) * | 2002-09-03 | 2004-03-11 | Dr.Ing.H.C. F. Porsche Ag | Air intake system for internal combustion engine has filter element cavity bounded by two endface apertures, one monitored by closing element |
DE10332453A1 (en) * | 2003-07-17 | 2005-02-03 | Bayerische Motoren Werke Ag | Air filter housing for internal combustion engine, comprises first and second air inlet openings having corresponding filter sections which are separated by a wall |
DE102004036083A1 (en) * | 2004-07-24 | 2006-02-16 | Audi Ag | Suction device for internal combustion engine has air filter which separates a raw air duct and pure air duct whereby air filter has two filter zones, which are arranged in common casing, and have different flow resistances |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009048209A1 (en) * | 2009-10-05 | 2011-04-07 | Mann + Hummel Gmbh | Air filter for an internal combustion engine |
DE102009058161A1 (en) * | 2009-12-15 | 2011-06-16 | Mann + Hummel Gmbh | Intake device of an internal combustion engine |
US8863717B2 (en) | 2009-12-15 | 2014-10-21 | Mann+Hummel Gmbh | Intake device of an internal combustion engine |
DE102010035353B4 (en) * | 2010-08-24 | 2017-07-20 | Mann + Hummel Gmbh | Air intake filter for an internal combustion engine |
DE102010035353A1 (en) * | 2010-08-24 | 2012-03-01 | Mann + Hummel Gmbh | Air intake filter for an internal combustion engine |
CN102418630A (en) * | 2011-12-15 | 2012-04-18 | 江门市大长江集团有限公司 | Air filter |
EP2685081A1 (en) * | 2012-07-09 | 2014-01-15 | MANN+HUMMEL GmbH | Air cleaner in particular of an internal combustion engine |
WO2014009039A1 (en) * | 2012-07-09 | 2014-01-16 | Mann+Hummel Gmbh | Air cleaner in particular of an internal combustion engine |
CN104428523A (en) * | 2012-07-09 | 2015-03-18 | 曼·胡默尔有限公司 | Air cleaner in particular of an internal combustion engine |
JP2015528873A (en) * | 2012-07-09 | 2015-10-01 | マン ウント フンメル ゲゼルシャフト ミット ベシュレンクテル ハフツング | Air cleaning device for internal combustion engines in particular |
KR20170093844A (en) * | 2014-12-10 | 2017-08-16 | 유에프아이 필터즈 소시에떼 퍼 아찌오니 | A filter group of air directed to an air aspiration intake of an internal combustion engine |
KR102445292B1 (en) | 2014-12-10 | 2022-09-20 | 유에프아이 필터즈 소시에떼 퍼 아찌오니 | A filter group of air directed to an air aspiration intake of an internal combustion engine |
WO2016092362A1 (en) * | 2014-12-10 | 2016-06-16 | Ufi Filters S.P.A. | A filter group of air directed to an air aspiration intake of an internal combustion engine |
CN107208580A (en) * | 2014-12-10 | 2017-09-26 | Ufi过滤股份公司 | Import the filter group of the air of the air-breathing air inlet of explosive motor |
JP2017538889A (en) * | 2014-12-10 | 2017-12-28 | ユーエフアイ フィルターズ エッセ.ピ.ア. | Filter group of air led to the intake port of an internal combustion engine |
CN107208580B (en) * | 2014-12-10 | 2019-05-10 | Ufi过滤股份公司 | Import the filter group of the air of the air-breathing air inlet of internal combustion engine |
US10953358B2 (en) | 2014-12-10 | 2021-03-23 | Ufi Filters S.P.A. | Filter group of air directed to an air aspiration intake of an internal combustion engine |
US9567949B2 (en) | 2015-01-09 | 2017-02-14 | Mann+Hummel Gmbh | Air cleaner in particular of an internal combustion engine |
DE102020121710A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter system and filter element |
WO2022038142A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter element and filter system |
DE102020121711A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter element and filter system |
DE102020121712A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter element and filter system |
WO2022038138A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter element and filter system |
WO2022038073A1 (en) | 2020-08-19 | 2022-02-24 | Mann+Hummel Gmbh | Filter system and filter element |
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