DE4027799C2 - Odor filter for vehicle cabins - Google Patents

Odor filter for vehicle cabins

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Publication number
DE4027799C2
DE4027799C2 DE19904027799 DE4027799A DE4027799C2 DE 4027799 C2 DE4027799 C2 DE 4027799C2 DE 19904027799 DE19904027799 DE 19904027799 DE 4027799 A DE4027799 A DE 4027799A DE 4027799 C2 DE4027799 C2 DE 4027799C2
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DE
Germany
Prior art keywords
odor filter
filter according
adsorber
vehicle cabins
odor
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
Application number
DE19904027799
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German (de)
Other versions
DE4027799A1 (en
Inventor
Hasso Von Bluecher
Ernest De Dr Ruiter
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Individual
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Individual
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Priority to DE19904027799 priority Critical patent/DE4027799C2/en
Publication of DE4027799A1 publication Critical patent/DE4027799A1/en
Application granted granted Critical
Publication of DE4027799C2 publication Critical patent/DE4027799C2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • 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
    • B01J20/28042—Shaped bodies; Monolithic structures
    • B01J20/28045—Honeycomb or cellular structures; Solid foams or sponges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • 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
    • B01D39/1669—Cellular material
    • B01D39/1676—Cellular material of synthetic origin
    • 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
    • B01J20/28002—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 physical properties
    • B01J20/28004—Sorbent size or size distribution, e.g. particle size
    • 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
    • B01J20/28002—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 physical properties
    • B01J20/28011—Other properties, e.g. density, crush strength
    • 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
    • B01J20/28016—Particle form
    • B01J20/28019—Spherical, ellipsoidal or cylindrical
    • 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
    • B01J20/28054—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 surface properties or porosity
    • B01J20/28078—Pore diameter
    • B01J20/2808—Pore diameter being less than 2 nm, i.e. micropores or nanopores
    • 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
    • B01J20/28054—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 surface properties or porosity
    • B01J20/28088—Pore-size distribution
    • B01J20/2809—Monomodal or narrow distribution, uniform pores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H3/0658—Filter elements specially adapted for their arrangement in vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00—Other air-treating devices
    • B60H3/06—Filtering
    • B60H2003/0691—Adsorption filters, e.g. activated carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nanotechnology (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Description

Die Offenlegungsschrift DE 32 28 156 A1 beschreibt Filtersysteme, mit deren Hilfe Schad- und Geruchsstoffe aus Luftströmen entfernt werden können. Als Anwen­ dungsgebiete werden Innenräume, aber auch Fahrzeugkabinen genannt.The published patent application DE 32 28 156 A1 describes filter systems with the help of which Pollutants and odors can be removed from air currents. As a user areas are called interiors, but also vehicle cabins.

Die Insassen von Fahrzeugen, insbesondere von Kraftfahrzeugen, sind zwei Ein­ flüssen ausgesetzt: den sog. Schadstoffen, wie Co, NOx und in geringerem Maß SO₂, die man nicht oder kaum riecht, sofern keine hohen Konzentrationen vorlie­ gen, und Geruchsstoffen, die zum Großteil aus unvollständig verbranntem Kraftstoff, insbesondere Dieselkraftstoff, bestehen.The occupants of vehicles, in particular motor vehicles, are exposed to two influences: the so-called pollutants, such as Co, NO x and to a lesser extent SO₂, which one does not smell or hardly smells, as long as there are no high concentrations, and odorous substances that cause Most consist of incompletely burned fuel, especially diesel fuel.

Während für den normalen Kraftfahrzeugbenutzer die Schadstoffe keine ernste Bedrohung bedeuten und man ihn deshalb nicht vor diesen Stoffen schützen muß, bedeuten dagegen Geruchsstoffe eine sehr erhebliche Belästigung.While for the normal motor vehicle user the pollutants are not serious Mean a threat and therefore you do not have to protect him from these substances, on the other hand, odorous substances are a very significant nuisance.

Schadstoffe wie Co und NOx sind nach heutigem Stand der Technik nur schwer eli­ minierbar und wenn, dann nur mit aufwendigen, voluminösen Filtersystemen, für die normalerweise gar kein Platz vorhanden ist.According to the current state of the art, pollutants such as Co and NO x are difficult to eliminate and, if so, only with complex, voluminous filter systems for which there is normally no space.

Gerüche sind nicht meßbar, sie sind eine Empfindung. Ihre Besonderheit liegt darin, daß sie schon in geringsten Konzentrationen wahrnehmbar sind bzw. wenn es sich um unangenehme Gerüche handelt, als Belästigung empfunden werden. So konnte anhand von Versuchen mit einem stationären Diesel festgestellt werden, daß selbst bei 100 000facher Verdünnung der Abgase mit Frischluft ein unange­ nehmer Geruch wahrnehmbar ist. Es ist deshalb nicht erstaunlich, wenn es beson­ derer Filter bedurfte, um die Gerüche des Straßenverkehrs von der Fahrzeugkabi­ ne fernzuhalten.Smells are not measurable, they are a sensation. Your peculiarity lies in that they are perceptible even in the smallest concentrations or if it is an unpleasant smell that is perceived as a nuisance. So it could be determined by tests with a stationary diesel,  that even with 100,000 times the dilution of the exhaust gases with fresh air an uncomfortable pleasant smell is perceptible. It is therefore not surprising if it is special whose filter needed to remove the smells of road traffic from the vehicle cab ne to keep away.

Eine in der DE 32 28 156 A1 beschriebene bevorzugte Form besteht aus einem großporigen, retikulierten PU-Schaum, der mit einer Haftmasse beaufschlagt wird und dann mit Aktivkohleteilchen, insbesondere 0,4-1,0 mm große Aktivkohlekü­ gelchen, bestreut wird. Durch die besondere Art der Haftmasse bilden sich kleine "Tragsockeln" aus, die in der genannten Anmeldung als Tragesäulen bezeichnet sind, was aber zu einer falschen Vorstellung führt. Ein Filter dieser Art wird dem­ nächst von einem bekannten Automobilhersteller als Ergänzung zur Klimaanlage eingeführt.A preferred form described in DE 32 28 156 A1 consists of a large-pored, reticulated PU foam, which is applied with an adhesive and then with activated carbon particles, in particular 0.4-1.0 mm activated carbon gelchen, is sprinkled. Due to the special nature of the adhesive, small ones are formed "Support base", referred to in the application as support columns are, which leads to a wrong idea. A filter of this type is the next from a well-known automobile manufacturer as a supplement to the air conditioning system introduced.

Das grundsätzliche Prinzip der dreidimensionalen Matrix, an welcher relativ kleine Adsorberteilchen haften, ist beispielsweise in der DE 38 19 002 A1 gezeigt. Die Vorteile sind: ein sehr geringer Druckabfall und, als Folge der kleinen Teilchen, eine sehr gute Adsorptions- und Desorptionskinetik. Der geringe Druckabfall ist für die Anwendung solcher Filter in Kraftfahrzeugen von enormer Wichtigkeit, weil die Gebläseleistung kaum gesteigert werden kann, die Menge Frischluft jedoch nicht erheblich reduziert werden darf, wenn man ein Filter nutzt.The basic principle of the three-dimensional matrix, on which relatively small Adhesor particles stick, is shown for example in DE 38 19 002 A1. The advantages are: a very low pressure drop and, as a result of the small particles, very good adsorption and desorption kinetics. The low pressure drop is for the application of such filters in motor vehicles is of enormous importance because the Fan performance can hardly be increased, but the amount of fresh air cannot may be significantly reduced if you use a filter.

Die gebräuchlichen Adsorbentien hierbei sind auf Basis von Aktivkohle. Aktivkohle nimmt bekannterweise ab einer relativen Feuchte von 70% schnell bis zu 30% ihres Gewichts an Wasser auf, wodurch ihre Adsorptionsfähigkeit geschmälert wird. Ein anderer Nachteil ist, daß ein solches Filter bei feuchter Witterung Feuchtigkeit auch im Ruhezustand aufnimmt und diese an den Innenraum abgeben kann. Bei 1 kg Kohle sind das immerhin 0,3 l Wasser, was zum Beschlagen der Scheiben führen kann. Dies mag auch der Grund sein, warum der Einsatz derartiger Filter vorerst nur zusammen mit einer Klimaanlage erfolgt.The usual adsorbents are based on activated carbon. Activated carbon takes As is known, from a relative humidity of 70% quickly up to 30% of their Weight of water, which reduces their adsorbability. A another disadvantage is that such a filter also damp in damp weather records in the idle state and can deliver this to the interior. At 1 kg Coal is at least 0.3 l of water, which leads to fogging of the windows can. This may also be the reason why the use of such filters for the time being only done together with air conditioning.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Filtermaterial zu schaffen, das bei guter Eignung für die Geruchsbeseitigung aus der Luft im Straßenverkehr unempfindlich gegen Feuchtigkeit ist.The invention is therefore based on the object of a filter material to create that with good suitability for odor removal insensitive to air traffic against moisture.

Diese Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst.This object is achieved by the features of patent claim 1 solved.

Es wurde hierzu überraschenderweise gefunden, daß Adsorberharze, die für die Lösemittelrückgewinnung in flüssiger Phase entwickelt wurden, sich sehr gut zur Beseitigung der Geruchsbelästigung im Straßenverkehr eignen. Solche Harze sind Divinylbenzol enthaltende Produkte, die ein sehr regelmäßig aufgebautes Mikro­ porensystem enthalten, welches über Transportporen sehr gut zugänglich ist. Sie können auch als organische Zeolite bezeichnet werden. Eine wichtige Eigenschaft ist ihre Hydrophobie. Da die Adsorber für die Rückgewinnung von Lösemitteln aus Wasser entwickelt wurden, wurde auf eine sehr ausgeprägte Hydrophobie viel Wert gelegt. Da diese Adsorber keine Feuchtigkeit aufnehmen, ist auch das bei Verwen­ dung von Aktivkohle mögliche Beschlagen der Fenster nicht mehr zu befürchten. Das bedeutet, daß die erfindungsgemäßen Geruchsfilter für Fahrzeugkabinen all­ gemein einsetzbar sind, also auch ohne Klimaanlage. Wenn auch die erfindungs­ gemäßen Filter in erster Linie zur Beseitung von Gerüchen gedacht sind, so darf nicht übersehen werden, daß auch Schadstoffe, wie z. B. Kohlenwasserstoffe, Aromaten und deren Crackprodukte, die zwar nur in niedrigen Konzentrationen vorkommen, aber deren gesundheitliches Risiko noch lange nicht ausreichend er­ forscht ist, adsorbiert werden.It has surprisingly been found that adsorber resins for Solvent recovery in the liquid phase have been developed very well Eliminate odors in road traffic. Such resins are Products containing divinylbenzene, which have a very regular micro contain pore system, which is very accessible via transport pores. she can also be called organic zeolites. An important quality is their hydrophobicity. Because the adsorber is made for the recovery of solvents Water were developed, much emphasis was placed on a very pronounced hydrophobicity placed. Since these adsorbers do not absorb moisture, this is also the case with Verwen of activated carbon no longer have to fear possible fogging of the windows. This means that the odor filter according to the invention for vehicle cabins all can be used together, i.e. without air conditioning. If the invention filters are primarily intended to remove odors, so it should not be overlooked that pollutants such. B. hydrocarbons, Aromatics and their cracking products, although only in low concentrations occur, but their health risk is still insufficient research is adsorbed.

Nachfolgend wird die Erfindung an zwei Ausführungsbeispielen erläutert.The invention is explained below using two exemplary embodiments.

Beispiel 1example 1

Ein offenporiger, retikulierter PU-Schaum, Porengröße ca. 15-20 PPl, Dicke 10 mm, Litergewicht ca. 30 g, wurde mit einem PU-Reaktivsystem ("Hig Solid", Bayer AG) beaufschlagt (25-36 g/l Schaum) und mit Sorbathen-Kügelchen (DOW Chemical Corp.) von ca. 0,5 mm bestreut. Durch die hervorragende Klebrigkeit der Haftmasse war die nötige Anfangshaftung gewährleistet. Beim Erhitzen bis auf 160°C nahm zuerst die Viskosität der Haftmasse stark ab, wodurch einerseits eine hervorragende Verklebung, andererseits eine Art von "Tragesockel" (Einschnürung) unter jedem Kügelchen entstand, welche die Zugänglichkeit noch verbesserte. Ab 140°C trat die Vernetzung ein, wodurch die Haftmasse erstarrte. An open-pore, reticulated PU foam, pore size approx. 15-20 PPl, thickness 10 mm, Liter weight approx. 30 g, was with a PU reactive system ("Hig Solid", Bayer AG) applied (25-36 g / l foam) and with sorbate beads (DOW Chemical Corp.) of about 0.5 mm. Due to the excellent stickiness of the adhesive the necessary initial liability was guaranteed. When heated up to 160 ° C First the viscosity of the adhesive mass drops sharply, which on the one hand makes it excellent Gluing, on the other hand a kind of "support base" (constriction) under each bead was created, which made the accessibility even better. From 140 ° C networking occurred, causing the adhesive to freeze.  

Beispiel 2Example 2

Wie Beispiel 1, mit dem Unterschied, daß den High Solids 15 Gew.-% eines halo­ genfreien Flammschutzmittels zugefügt wurde. Die Ergebnisse wurden nicht be­ einflußt.As example 1, with the difference that the high solids 15 wt .-% of a halo gene-free flame retardant was added. The results were not influences.

Auf einem Prüfstand (VW, 6-Zyl. Diesel, 2000 T/min., Normallast) wurden Dieselab­ gase bis zu einer Verdünnung 1 : 100 000 auf Gerüche geprüft (Testpersonen), wobei die Dieselgerüche noch wahrnehmbar waren. Sodann wurden Abgase in einer Verdünnung von nur 1 : 1000 durch ein Geruchsfilter, bestehend aus 6 Lagen des Schaums von Beispiel 1 bzw. 2 geleitet. Die Gerüche waren eliminiert.On a test bench (VW, 6-cyl. Diesel, 2000 T / min., Normal load), diesel were released gases up to a dilution of 1: 100,000 tested for odors (test persons), the diesel smells were still noticeable. Exhaust gases were then a dilution of only 1: 1000 through an odor filter consisting of 6 layers the foam of Example 1 and 2 passed. The smells were eliminated.

Claims (8)

1. Geruchsfilter für die in Fahrzeugkabinen eingebrachte Frischluft, bestehend aus einem luftdurchlässigen Träger mit darauf fixierten Adsorberharzen.1. Odor filter for the fresh air introduced into vehicle cabins from an air-permeable carrier adsorber resins fixed thereon. 2. Geruchsfilter nach Anspruch 1, dadurch gekennzeichnet, daß der Träger ein, bevorzugterweise dreidimensionaler offenporiger, retikulierter Polyurethanschaum ist.2. Odor filter according to claim 1, characterized in that the carrier is a, preferably three-dimensional is open-pore, reticulated polyurethane foam. 3. Geruchsfilter nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die Haftmasse ein Reaktivsystem ist, welches vor dem Erreichen der Vernetzungs­ temperatur ein Viskositätsminimum durchläuft.3. Odor filter according to claim 1 and / or 2, characterized in that the Adhesive is a reactive system, which before reaching the crosslinking temperature passes through a minimum viscosity. 4. Geruchsfilter nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß die Haftmasse ein Flammschutzmittel enthält.4. Odor filter according to claim 1 and / or 2, characterized in that the Adhesive contains a flame retardant. 5. Geruchsfilter nach einem oder mehreren der vorhergehenden Ansprüche, da­ durch gekennzeichnet, daß die Adsorberharze kugelförmig sind und einen mittleren Durchmesser von ca. 0,3-0,6 mm haben.5. Odor filter according to one or more of the preceding claims, since characterized in that the adsorber resins are spherical and a have an average diameter of approx. 0.3-0.6 mm. 6. Geruchsfilter nach einem oder mehreren der vorhergehenden Ansprüche, da­ durch gekennzeichnet, daß die Adsorberharze ein sehr regelmäßiges Mikro­ porensystem mit fast identischen Porendurchmessern ("organische Molekular­ siebe", ⌀ je nach Aufbau 5-10 Å) haben und die Mikroporen über "Makro­ poren" gut zugänglich sind. 6. Odor filter according to one or more of the preceding claims, since characterized in that the adsorber resins are a very regular micro pore system with almost identical pore diameters ("organic molecular sieve ", ⌀ depending on the structure 5-10 Å) and the micropores via" Macro pores "are easily accessible.   7. Geruchsfilter nach einem oder mehreren der vorhergehenden Ansprüche, da­ durch gekennzeichnet, daß die Adsorber im wesentlichen auf Polymerisaten bzw. Kopolymerisate von Divinylbenzol und Vinylbenzol basieren.7. Odor filter according to one or more of the preceding claims, since characterized in that the adsorber essentially on polymers or copolymers of divinylbenzene and vinylbenzene are based. 8. Verwendung eines Geruchsfilters nach einem oder mehreren der vorhergehenden Ansprüche zum Einführen von Frischluft in Fahrzeugkabinen zwecks Beseitigung der Geruchsbelästigung im Straßenverkehr.8. Use of an odor filter according to one or more of the preceding claims for introducing fresh air into vehicle cabins for the purpose Elimination of odors in traffic.
DE19904027799 1990-09-01 1990-09-01 Odor filter for vehicle cabins Expired - Fee Related DE4027799C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19904027799 DE4027799C2 (en) 1990-09-01 1990-09-01 Odor filter for vehicle cabins

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DE4027799C2 true DE4027799C2 (en) 1995-04-20

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521678A1 (en) * 1995-06-14 1996-12-19 Bluecher Hasso Von Cylindrical filter cartridge with high air permeability
DE19521680A1 (en) * 1995-06-14 1997-01-09 Bluecher Hasso Von Highly air-permeable adsorption filter for decontaminating and deodorising air - has adsorbent granules bonded to carrier esp. reticulated polyurethane foam by di or poly:isocyanate prepolymer cured and foamed by moisture
DE19534113A1 (en) * 1995-09-14 1997-03-20 Bluecher Hasso Von Regeneratable filter for eliminating cooking smells
DE19836469A1 (en) * 1998-08-12 2000-02-17 Mhb Filtration Gmbh & Co Kg Air filter for vehicles or buildings has meso and macro pores representing more than half of total for economic manufacture and efficiency with long service life

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CA2049978A1 (en) * 1990-01-23 1991-07-24 Hasso Von Blucher Filter material for motor vehicles
DE4225272B4 (en) * 1992-07-31 2006-01-19 Mhb Filtration Gmbh & Co. Kg adsorption
DE4343359A1 (en) * 1993-12-18 1995-06-22 Hasso Von Bluecher Automobile fresh air filter
SE509743C2 (en) * 1994-06-17 1999-03-01 Bluecher Hasso Von Adsorptionsfilterskikt
DE19647768B4 (en) * 1996-11-19 2013-07-11 BLüCHER GMBH Process for producing a pleated filter
DE29703827U1 (en) * 1997-03-03 1997-04-17 Behr Gmbh & Co Filters, in particular for an air conditioning system of a motor vehicle
DE19732304B4 (en) * 1997-07-26 2007-03-29 Volkswagen Ag Air duct for a ventilation, air conditioning and / or heating system of a motor vehicle
ITRM20040005A1 (en) * 2004-01-13 2004-04-13 Giorgio Miniucchi ATMOSPHERIC PURIFIER SYSTEM APPLIED TO MOVING VEHICLES.
EP4091696A1 (en) * 2021-05-18 2022-11-23 Johnson Matthey Public Limited Company A single-use filter component, a method for treating air and use of a polymer or copolymer of divinylbenzene

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DE2927287B2 (en) * 1979-07-06 1981-05-21 HELSA - Werke Helmut Sandler & Co, 8586 Gefrees Multi-layer filter material with at least one layer of open-cell foam
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SE436693B (en) * 1981-06-04 1985-01-21 Bofors Ab SET TO MAKE A RECOVERABLE FILTER FOR GAS OR LIQUID SEPARATION
DE3222983A1 (en) * 1982-06-19 1983-12-22 Sorbexx GmbH Gesellschaft für Adsorptionstechnik und Verbundstoffe, 8586 Gefrees HEAT EXCHANGER, ESPECIALLY FOR HEATING AND / OR AIR CONDITIONING, PREFERABLY IN MOTOR VEHICLES
DE3228156C2 (en) * 1982-07-28 1994-01-20 Bluecher Hubert Use of a flexible surface filter in an air cleaning device for motor vehicle cabins
US4631077A (en) * 1985-03-26 1986-12-23 Pipercrosslimited Foam plastic air filter
DE3524431A1 (en) * 1985-07-09 1987-01-22 Knecht Filterwerke Gmbh PLATE-SHAPED FILTER INSERT
DE3624803A1 (en) * 1986-07-23 1988-01-28 Hoelter Heinz Apparatus and method for improving the efficiency of bactericidal and fungicidal chemisorption filters and corresponding room air filters and motor vehicle cabin air filters with the aid of electrical charges or discharges
DE3637428C3 (en) * 1986-10-31 1994-07-07 Simmerlein Erlbacher E W Filter and use of the same
DE3704458A1 (en) * 1987-02-13 1988-08-25 Sueddeutsche Kuehler Behr Dust filter, in particular for motor vehicle air conditioning units
DE3704459A1 (en) * 1987-02-13 1988-08-25 Sueddeutsche Kuehler Behr Dust filter, in particular for motor vehicle air conditioning units
DE3719418C1 (en) * 1987-06-11 1988-07-21 Sandler Helmut Helsa Werke Process for the production of a filter material
DE3742122A1 (en) * 1987-12-11 1989-06-22 Bayer Ag METHOD FOR PRODUCING POLYURETHANE FOAM MOLDED PARTS
DE3813563C2 (en) * 1988-04-22 2002-01-17 Mhb Filtration Gmbh & Co Kg Adsorption filter with high air permeability
DE3817084C1 (en) * 1988-05-19 1989-09-21 Daimler-Benz Aktiengesellschaft, 7000 Stuttgart, De Odour-binding filter in the feed air stream of a motor vehicle interior
DE3819002A1 (en) * 1988-06-03 1989-12-14 Hasso Von Bluecher Air filter for passenger cells
DE3839352A1 (en) * 1988-11-22 1990-05-23 Sueddeutsche Kuehler Behr AIR CONDITIONER FILTER FOR A MOTOR VEHICLE
DE3904623A1 (en) * 1989-02-16 1990-08-23 Sandler Helmut Helsa Werke Filter in particular for a vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521678A1 (en) * 1995-06-14 1996-12-19 Bluecher Hasso Von Cylindrical filter cartridge with high air permeability
DE19521680A1 (en) * 1995-06-14 1997-01-09 Bluecher Hasso Von Highly air-permeable adsorption filter for decontaminating and deodorising air - has adsorbent granules bonded to carrier esp. reticulated polyurethane foam by di or poly:isocyanate prepolymer cured and foamed by moisture
DE19534113A1 (en) * 1995-09-14 1997-03-20 Bluecher Hasso Von Regeneratable filter for eliminating cooking smells
DE19836469A1 (en) * 1998-08-12 2000-02-17 Mhb Filtration Gmbh & Co Kg Air filter for vehicles or buildings has meso and macro pores representing more than half of total for economic manufacture and efficiency with long service life

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