DE202006018864U1 - Combined filter element - Google Patents
Combined filter element Download PDFInfo
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- DE202006018864U1 DE202006018864U1 DE200620018864 DE202006018864U DE202006018864U1 DE 202006018864 U1 DE202006018864 U1 DE 202006018864U1 DE 200620018864 DE200620018864 DE 200620018864 DE 202006018864 U DE202006018864 U DE 202006018864U DE 202006018864 U1 DE202006018864 U1 DE 202006018864U1
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- filter element
- element according
- fibers
- fiber layer
- solidification
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Classifications
-
- 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
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
- B01D39/2055—Carbonaceous material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28023—Fibres or filaments
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
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- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/08—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture adding fuel vapours drawn from engine fuel reservoir
- F02M25/0854—Details of the absorption canister
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- 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
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0622—Melt-blown
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/0627—Spun-bonded
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/0604—Arrangement of the fibres in the filtering material
- B01D2239/064—The fibres being mixed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/08—Special characteristics of binders
- B01D2239/086—Binders between particles or fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
- B01J2220/62—In a cartridge
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Filtering Materials (AREA)
Abstract
Filterelement, insbesondere Luftfilterelement für eine Brennkraftmaschine, enthaltend einen Faltenbalg mit mindestens einer Partikelfaserschicht zur Abscheidung von Partikeln aus einem zu filternden flüssigen oder gasförmigen Medium, dadurch gekennzeichnet, dass ein Teil der mindestens einen Partikelfaserschicht durch Adsorberfasern ersetzt ist.Filter element, in particular air filter element for an internal combustion engine containing a bellows with at least a particle fiber layer for separating particles from a liquid to be filtered or gaseous Medium, characterized in that a part of the at least one Particle fiber layer is replaced by adsorber fibers.
Description
Technisches GebietTechnical area
Die vorliegende Erfindung betrifft ein Filterelement nach der Gattung des Patentanspruchs 1. Insbesondere betrifft die Erfindung ein Luftfilterelement für eine Brennkraftmaschine.The The present invention relates to a filter element of the generic type Of the claim 1. In particular, the invention relates to an air filter element for an internal combustion engine.
Stand der TechnikState of the art
Wesentliches Entwicklungsziel bei modernen Brennkraftmaschinen ist eine Reduktion der Schadstoffemission. Bisherige Entwicklungsaktivitäten hatten vor allem eine Optimierung des Abgasreinigungssystems zum Ziel. Moderne Abgasreinigungssysteme erzielen inzwischen Umwandlungsraten für Schadstoffe von über 97%.essential Development goal with modern internal combustion engines is a reduction the pollutant emission. Previous development activities had Above all, an optimization of the emission control system to the goal. Modern emission control systems are now achieving conversion rates for pollutants from above 97%.
Die zunehmende Luftverunreinigung hat nahezu in allen Staaten dazu geführt, dass der Schadstoffausstoß begrenzt wurde und immer stärker limitiert wird. Um die Reproduzierbarkeit und Vergleichbarkeit zu garantieren, wurden unterschiedliche Prüfverfahren, Bewertungen und Grenzwerte erarbeitet. So existiert in den USA bezüglich der Grenzwerte beispielsweise die Kategorie ULEV (Ultra Low Emission Vehicle) und die Kategorie mit den derzeit strengsten Werten, SULEV (Super Ultra Low Emission Vehicle).The Increasing air pollution has resulted in almost all states limits pollutant emissions became and always stronger is limited. To ensure reproducibility and comparability guarantee, different test methods, reviews and were Limits worked out. So exists in the US regarding the Limits, for example, the category ULEV (Ultra Low Emission Vehicle) and the category with the currently most stringent values, SULEV (Super Ultra Low Emission Vehicle).
Im Stand der Technik lösen derzeit im Motorluftbereich Polymerfilter die althergebrachten Cellulosefilter ab (Polymerfilter werden derzeit bspw. im Audi A8 bei den V6 und V8 Dieselmotoren sowie bei Renault Megane 2,0 l Diesel eingesetzt).in the Solve the prior art Currently in the engine air sector polymer filter the traditional cellulose filter From (polymer filter are currently, for example, in the Audi A8 in the V6 and V8 diesel engines as well as used in Renault Megane 2.0 l diesel).
Diese Polymerfilter bieten gegenüber Cellulosefiltern Vorteile wie bspw. höhere Standzeit, höhere Abscheideleistung, einen niedrigeren Differenzdruck und kleineren Bauraum.These Polymer filters offer opposite Cellulose filters Advantages such as higher service life, higher separation efficiency, a lower differential pressure and smaller space.
Darüber hinaus werden derzeit sogenannte HC-Fallen (Kohlenwasserstoff-Fallen) in unterschiedlichsten Versionen entwickelt, um die Kohlenwasserstoff-Emissionen den entsprechenden SULEV-Bedingungen anzupassen. Eine HC-Falle fängt die Kohlenwasserstoffe beim Stillstand des Motors auf und hält somit umweltschädlichen Benzindampf – meist in einem Aktivkohlespeicher – fest, bevor die Gase in die Umwelt entweichen können. Beim erneuten Start werden die gespeicherten HC-Moleküle vom angesaugten Luftstrom wieder gelöst, zum Verbrennungsraum geführt und dort verbrannt.Furthermore Currently, so-called HC traps (hydrocarbon traps) are in very different Versions designed to match the hydrocarbon emissions SULEV conditions to adjust. An HC trap traps the hydrocarbons When the engine is at a standstill and thus keeps harmful to the environment Petrol vapor - mostly in an activated carbon store - fixed, before the gases can escape into the environment. When restarting the stored HC molecules from the sucked in air flow again, led to the combustion chamber and burned there.
Die Kombination der beiden Anforderungen, Luftfilterelement und HC-Falle, ist bisher in Strömungsrichtung räumlich getrennt angeordnet, wobei die HC-Falle reinluftseitig angebracht ist – generell nach dem Luftfilterelement mittels einer nicht lösbaren Verbindung.The Combination of the two requirements, air filter element and HC trap, is so far in the flow direction spatial arranged separately, the HC trap mounted on the clean air side is - generally after the air filter element by means of a non-detachable connection.
So
offenbart bspw. die
Diese Anordnung ist jedoch insoweit nachteilig, als sie zu einer Erhöhung des Differenzdrucks, unterschiedlichen Wechselintervallen, erhöhten Bauraumanforderungen, einer nicht optimalen Platzierung der Elemente und erhöhten Kosten führt.These However, arrangement is disadvantageous insofar as it leads to an increase in the Differential pressure, different replacement intervals, increased space requirements, a non-optimal placement of the elements and increased costs leads.
Offenbarung der ErfindungDisclosure of the invention
Es ist daher die Aufgabe der vorliegenden Erfindung, die genannten Nachteile des Standes der Technik zu vermeiden und ein Luftfilterelement zur Verfügung zu stellen, das im Ansaugtrakt einer Brennkraftmaschine angeordnet werden kann, die Abgasemission weiter verringert und eine Nachrüstung bestehender Fahrzeuge ermöglicht.It is therefore the object of the present invention, the above To avoid disadvantages of the prior art and an air filter element to disposal to put that arranged in the intake of an internal combustion engine which will further reduce exhaust emissions and retrofit existing ones Vehicles allowed.
Diese und weitere Aufgaben werden durch das Luftfilterelement nach Anspruch 1 gelöst.These and further objects are achieved by the air filter element according to claim 1 solved.
Weitere vorteilhafte Ausgestaltungen sind in den Unteransprüchen enthalten.Further advantageous embodiments are contained in the subclaims.
Ausführungsform(en) der ErfindungEmbodiment (s) the invention
Erfindungsgemäß wird eine Kombination von Partikelfasern und Adsorberfasern in einem einzigen Filter untergebracht, wobei die Adsorberfasern einen Teil der Partikelabscheidung übernehmen. Die Adsorberfasern haben dabei die Funktion der HC-Falle, die damit direkt in das Filterelement integriert ist.According to the invention is a Combination of particle fibers and adsorbent fibers in a single filter housed, wherein the adsorber fibers take over part of the particle deposition. The adsorber fibers have the function of the HC trap, the so is integrated directly into the filter element.
Motorluftfilter werden dabei vorzugsweise als Faltenfilter aus polymeren Stapelfasern hergestellt, wobei ein bestimmter Anteil der Partikelfasern durch Adsorberfasern ersetzt wird. Zur Herstellung der Partikelfaser- und der Adsorberschichten können dabei Verfahren wie bspw. Nasslegeverfahren, Trockenlegeverfahren, Kardierungsverfahren, Spunbondverfahren, Meltblownverfahren und eine Kombination aus Meltblownverfahren mit einem oder mehreren der aufgeführten Verfahren verwendet werden.Engine Air Filter are preferably as a folded filter of polymeric staple fibers produced, wherein a certain proportion of the particle fibers by Adsorber is replaced. For the production of the particle fiber and the Adsorberschichten can thereby Methods such as wet-laying method, dry-laying method, carding method, Spunbond process, meltblown process and a combination of meltblown process be used with one or more of the listed methods.
Die Partikelfasern können dabei aus Fasern bestehen, die ausgewählt sind aus der Gruppe bestehend aus Cellulosefasern, Polymerfasern oder Mischungen davon.The Particle fibers can consist of fibers selected from the group consisting from cellulose fibers, polymer fibers or mixtures thereof.
Die Adsorberfasern können aus Fasern bestehen, die ausgewählt sind aus der Gruppe bestehend aus Aktivkohlefasern, Ionenaustauscherfasern, chemisch imprägnierte Trilobalfasern, und Mischungen davon. Diese Aufzählung ist jedoch nicht abschließend, der Fachmann kann sich durchaus weitere geeignete Fasermaterialien vorstellen.The adsorbent fibers may consist of fibers selected from the group consisting of activated carbon fibers, ion exchange fibers, chemically impregnated trilobal fibers, and mixtures thereof. However, this list is not exhaustive; the person skilled in the art can certainly envisage further suitable fiber materials.
Vorteilhafterweise kann die eingebrachte Faserschicht mechanisch, chemisch oder thermisch verfestigt werden, um die nötigen physikalischen Eigenschaften für Weiterverarbeitung und Endprodukt zu gewährleisten. Dabei können Partikelfaserschicht und Adsorberfaser- oder Mischfaserschicht im gleichen Arbeitsgang mit dem gleichen Verfestigungsverfahren hergestellt werden, oder es können zwei aufeinander folgende Arbeitsgänge mit dem gleichen oder unterschiedlichen Verfestigungsverfahren durchgeführt werden, wobei die Verbindung der einzelnen Schichten im zweiten Verfestigungsprozess erfolgt. Es ist ebenfalls möglich, die Partikelfaserschicht und die Adsorberfaserschicht in unterschiedlichen Verfestigungsverfahren herzustellen, wobei die Verbindung der einzelnen Schichten in einem dritten gleichen oder unterschiedlichen Verfestigungsprozess erfolgt.advantageously, The incorporated fiber layer can be consolidated mechanically, chemically or thermally become the necessary ones physical properties for Further processing and end product to ensure. It can particle fiber layer and Adsorberfaser- or mixed fiber layer in the same operation with be prepared by the same solidification process, or it can two consecutive operations with the same or different Solidification process performed be, with the connection of the individual layers in the second Solidification process takes place. It is also possible to use the particle fiber layer and the adsorbent fiber layer in different consolidation processes The connection of the individual layers in one third identical or different solidification process takes place.
Mögliche Verfestigungsprozesse sind auch ein Klebeprozess oder eine Kaschierung, wobei die Kaschierung vorteilhafterweise mittels eines Polymerklebepulvers oder mittels aufgesprühten Klebefasern oder unter Verwendung von Klebenetzen unter Zufuhr von Wärmeenergie erfolgt. Es ist ebenfalls möglich, die Kaschierung mittels lösemittelfreien Lacken oder UV-härtenden Klebstoffen oder unter Verwendung von Dispersionsklebern oder aushärtenden PUR-Dispersionen durchzuführen. Des Weiteren kann der Verfestigungsprozess eine Flammkaschierung sein.Possible consolidation processes are also an adhesive process or a lamination, wherein the lamination advantageously by means of a polymer adhesive powder or by means sprayed Adhesive fibers or using adhesive nets with supply of Thermal energy he follows. It is also possible the lamination by means of solvent-free Paints or UV-curing Adhesives or using dispersion adhesives or curing PUR dispersions perform. Furthermore, the solidification process may be flame lamination be.
Erfindungsgemäß ist also die Adsorberschicht (HC-Falle) direkt in das Filterelement integriert. Da die Fasern der Adsorberschicht ebenfalls zur Partikelabscheidung beitragen, ist kein zusätzlicher Bauraum notwendig, darüber hinaus werden Pulsfestigkeit, Staubspeicherkapazität und Differenzdruck nicht beeinträchtigt.According to the invention is thus the adsorber layer (HC trap) integrated directly into the filter element. As the fibers of the adsorber also for particle deposition contribute is no additional Space required, above In addition, pulse strength, dust storage capacity and differential pressure not impaired.
Zudem garantiert das Herstellungsverfahren eine extrem hohe Produktivität bei sehr niedrigen Kosten.moreover The manufacturing process guarantees extremely high productivity at a very high level low costs.
Das erfindungsgemäße Luftfilterelement, das insbesondere für den Zuluftbereich in der Motorluftfiltration von Fahrzeugen verwendet werden kann, garantiert somit die hohe Abscheideleistung und die hohe Staubspeicherkapazität eines polymeren Partikelfilters mit der Rückhaltung von Kohlenwasserstoffen, wie sie im Ansaugtrakt eines SULEV-Fahrzeuges zum Einsatz kommt.The Air filter element according to the invention, the especially for used the Zuluftbereich in the engine air filtration of vehicles can be guaranteed, thus guaranteeing the high separation efficiency and the high dust holding capacity a polymeric particulate filter with the retention of hydrocarbons, as used in the intake system of a SULEV vehicle.
Claims (13)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE200620018864 DE202006018864U1 (en) | 2006-12-12 | 2006-12-12 | Combined filter element |
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DE200620018864 DE202006018864U1 (en) | 2006-12-12 | 2006-12-12 | Combined filter element |
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DE202006018864U1 true DE202006018864U1 (en) | 2008-04-17 |
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Citations (19)
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DE2512659C3 (en) * | 1974-11-20 | 1978-10-12 | Toyobo Co., Ltd., Osaka (Japan) | |
US4259096A (en) * | 1978-01-19 | 1981-03-31 | Nippondenso Co., Ltd. | Fuel vapor adsorption type air cleaner element for internal combustion engine |
JPS5644445A (en) * | 1979-09-19 | 1981-04-23 | Nippon Soken Inc | Air cleaner element for internal combustion engine |
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DE4481363C2 (en) * | 1994-11-30 | 2002-10-02 | Kondoh Ind Ltd | Air cleaning filter |
JP2002292277A (en) * | 2001-03-29 | 2002-10-08 | Mahle Tennex Corp | Adsorbing sheet |
JP2003053116A (en) * | 2001-08-10 | 2003-02-25 | Unitika Ltd | Laminated sheet and pleated filter |
US20050279210A1 (en) * | 2004-06-21 | 2005-12-22 | Ryu Hirata | Fuel vapor adsorption filters |
US20050284298A1 (en) * | 2004-06-24 | 2005-12-29 | Ryu Hirata | Fuel vapor adsorption filters |
DE102004000044A1 (en) * | 2004-11-17 | 2006-05-24 | Mann + Hummel Gmbh | Air filter system, used in intake system of internal combustion engine, includes adsorption unit comprising honeycomb structure coated with active carbon |
DE102005037313A1 (en) * | 2005-08-04 | 2007-02-15 | Carl Freudenberg Kg | Filter element and arrangement |
-
2006
- 2006-12-12 DE DE200620018864 patent/DE202006018864U1/en not_active Expired - Lifetime
Patent Citations (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2512659C3 (en) * | 1974-11-20 | 1978-10-12 | Toyobo Co., Ltd., Osaka (Japan) | |
US4259096A (en) * | 1978-01-19 | 1981-03-31 | Nippondenso Co., Ltd. | Fuel vapor adsorption type air cleaner element for internal combustion engine |
JPS5644445A (en) * | 1979-09-19 | 1981-04-23 | Nippon Soken Inc | Air cleaner element for internal combustion engine |
JPS62282615A (en) * | 1986-05-30 | 1987-12-08 | Nippon Denso Co Ltd | Filter element |
JPS63205116A (en) * | 1987-02-23 | 1988-08-24 | Nippon Denso Co Ltd | Filter for air cleaner |
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