WO2010063452A2 - Device for the relative wind-supported filtering of the air surrounding vehicles - Google Patents

Device for the relative wind-supported filtering of the air surrounding vehicles Download PDF

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Publication number
WO2010063452A2
WO2010063452A2 PCT/EP2009/008561 EP2009008561W WO2010063452A2 WO 2010063452 A2 WO2010063452 A2 WO 2010063452A2 EP 2009008561 W EP2009008561 W EP 2009008561W WO 2010063452 A2 WO2010063452 A2 WO 2010063452A2
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WO
WIPO (PCT)
Prior art keywords
air
filter
vehicle
wind
ambient air
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Application number
PCT/EP2009/008561
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German (de)
French (fr)
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WO2010063452A3 (en
Inventor
Martin Clemens
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Martin Clemens
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Application filed by Martin Clemens filed Critical Martin Clemens
Publication of WO2010063452A2 publication Critical patent/WO2010063452A2/en
Publication of WO2010063452A3 publication Critical patent/WO2010063452A3/en

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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
    • B01D46/0052—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
    • 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
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/01—Pretreatment of the gases prior to electrostatic precipitation
    • B03C3/011—Prefiltering; Flow controlling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/019—Post-treatment of gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/08—Plant or installations having external electricity supply dry type characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/12—Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/41—Ionising-electrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/40—Electrode constructions
    • B03C3/45—Collecting-electrodes
    • B03C3/47—Collecting-electrodes flat, e.g. plates, discs, gratings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2267/00—Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
    • B01D2267/40—Different types of filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2279/00—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses
    • B01D2279/40—Filters adapted for separating dispersed particles from gases or vapours specially modified for specific uses for cleaning of environmental air, e.g. by filters installed on vehicles or on streets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/04—Ionising electrode being a wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00—Details of magnetic or electrostatic separation
    • B03C2201/30—Details of magnetic or electrostatic separation for use in or with vehicles

Definitions

  • the present invention relates to a device for the wind-assisted filtering of the ambient air of vehicles.
  • Filter systems are already known from the state of the art, which, supported by the current wind, filter the ambient air introduced into a vehicle interior.
  • filters are used, for example, to protect persons suffering from allergies in the vehicle interior from particles that trigger allergies, such as pollens or the like.
  • document GB 2 121 161 A shows such an arrangement which can be mounted on the roof of a commercial vehicle and ensures that only sufficiently filtered air is introduced into the vehicle interior.
  • a commercial vehicle equipped with such a system can be used in particular at places of use with heavily contaminated air.
  • the document DE 39 16 692 Al a truck with a wind deflector, in which a per se known radiator fan assembly is integrated for the truck.
  • a device for wind-assisted filtering of ambient air from vehicles which is carried out with: an air supply, via which the wind-assisted ambient air during the driving of the
  • Vehicle is receivable, a downstream of the air supply arranged filter assembly, through which the ambient air received via the air supply can be guided, and an air outlet, over the filtered through the filter assembly through which purified air can be discharged to the environment of the vehicle.
  • the device during operation of the vehicle polluted ambient air is supplied via the air supply. This is done with wind-assisted and thus without additional energy.
  • the relative movement between the ambient air and the traveling vehicle and the resulting kinetic energy is used to pass the supplied ambient air through the filter assembly. While the supplied ambient air, which is more or less heavily polluted by emissions from other vehicles, particulate matter, CO 2, and the like, flows through the filter assembly, this contaminated ambient air supplied is cleaned in the filter assembly. After the cleaning process, the purified air is released to the environment.
  • passive filters such as fine-meshed filters, but also active filters, such as reactive filters, in particular catalysts, are used. This will be discussed in detail below.
  • the device is to be dimensioned.
  • polluted ambient air is purified to a certain extent by a vehicle equipped accordingly with the device according to the invention.
  • the environmental performance of each vehicle in particular the environmental performance of commercial vehicles, such as vans, trucks or buses, but also of motor vehicles, such as cars, SUVs (Sports Utility Vehicles), depending on the design and efficiency of the filter assembly significantly improved.
  • a significant reduction in air pollution can be achieved. It is also possible according to the invention to mount such devices on rail vehicles.
  • the device according to the invention is designed with the least possible weight so as not to increase the fuel consumption of the vehicles equipped with it. Also, the aerodynamic properties of the vehicles equipped with the invention should not be significantly impaired.
  • the filter arrangement comprises a plurality of different filter types.
  • the filter arrangement has a particle filter, in particular a particulate matter particulate filter.
  • filters may consist of a very close-meshed fabric of synthetic fibers and cellulose.
  • the filter arrangement has an activated carbon filter.
  • the filter arrangement comprises a catalyst, in particular a titanium oxide catalyst.
  • the filter arrangement has at least one electrically controlled filter.
  • the required electrical energy can be derived from the alternator of the vehicle.
  • lead that is, independent of the electrical system of the motor vehicle to operate as it were self-sufficient
  • the filter arrangement has an electrostatic filter.
  • Such an electrostatic filter may for example consist of a system of a plurality of parallel, electrically charged metal plates to attract with their help previously charged electrically charged dust and dirt particles and thereby separate from the flowing through the electrostatic filter polluted air.
  • the filter arrangement has a CO 2 filter.
  • This can for example be designed such that it binds CO 2 with a readily disposable chemical agent and / or splits by UV irradiation of the air flowing through the device according to the invention.
  • the device according to the invention can be designed accordingly by having closable access openings in its housing.
  • the device has a detection device for determining the air flow flowing through the device.
  • the integration over time and taking into account the dimensions of the air supply to the air volume purified over time can be concluded.
  • the invention can be provided in this context that in the cockpit of the vehicle, a corresponding display is arranged, which gives the driver information about the purified air volume.
  • monitoring sensors can be arranged on the individual filters of the filter assembly to determine their functionality and the current degree of contamination.
  • a visible and / or audible warning signal is output in the vehicle interior, for example a signal tone or by activating a signal light when one or more filters of the device according to the invention are to be maintained or replaced.
  • the device can be integrated into an air deflector, which is arranged on a roof of a commercial vehicle, in particular a bus or a truck. By this measure, it is ensured that the device according to the invention is always adequately flowed through by polluted ambient air to be filtered due to the exposed arrangement of the air deflector while driving the vehicle.
  • the air deflector has on its front side at least one, preferably lamellar, receiving opening which is connected to the air supply.
  • the device according to the invention in the vehicle body, for example, engine compartment, on the vehicle floor or in the rear area under the trunk, and to supply the air to be filtered via arranged in the front end of the vehicle air inlets.
  • the required air outlet may be located in the rear of the vehicle, with air intakes and air outlet integrated harmoniously with the vehicle design.
  • the invention further relates to an air deflector for a utility vehicle, in particular for attachment to a roof of a truck or a bus, wherein the air deflector has at least one preferably lamellar receiving opening, and wherein a device for wind-assisted filtering of ambient air of the type described above is integrated in the air deflector ,
  • Figure 1 is a schematic representation of a truck with wind deflector.
  • FIG. 2 shows a perspective view of the wind deflector with integrated filter arrangement
  • FIG. 3 shows a schematic illustration of the filter arrangement according to FIG. 2;
  • Fig. 4 is a schematic representation of a city bus with arranged on the roof device according to the invention and Fig. 5 is a schematic representation of the arranged on the roof of the bus according to Figure 4 filter arrangement.
  • a truck is shown schematically and generally designated 10. This includes a cab 12, on whose roof an air deflector 14 is mounted.
  • the truck 10 is traveling at a speed v. Accordingly, ambient air flows against the cab 12 and against the air deflector 14 as schematically indicated by the arrow 16.
  • This ambient air 16 is contaminated to some degree. It contains particulate matter, exhaust gases of other vehicles, CO 2 etc.
  • FIG. 2 shows an exploded perspective view of the air deflector 14 according to FIG. 1. It comprises a housing with an aerodynamically shaped, obliquely rising, front wall 20. In this front wall 20 is provided a series of transverse air inlet slots 22 arranged like a louver through which polluted ambient air 16 can flow into the interior of the housing of the air deflector 14 due to wind.
  • a filter assembly 24 is housed in the housing of the air deflector 14. This comprises a filter body 26 and in an electronic control unit 28th
  • the contaminated ambient air 16 introduced via the air inlet slots 22 is substantially cleaned in the filter arrangement 24, so that after passing through the filter arrangement 24, purified air 30 can be released to the environment.
  • FIG. 3 shows a simplified representation of the structure of the filter arrangement 24.
  • the filter arrangement 24 has a particle filter 32. This is flowed through first by the incoming polluted ambient air 16.
  • the particle filter 32 consists of a very close-meshed fabric of synthetic fibers and cellulose and serves to filter out suspended matter of smaller size, in particular fine dust, from the ambient air.
  • the particulate filter 32 is removably disposed in a housing 34 of the filter assembly 24. It can be replaced as needed or removed for cleaning.
  • the air 36 leaving the particle filter 32 is opposite the polluted one incoming ambient air 16 of particles, in particular fine dust particles, largely cleaned.
  • an electrostatic filter 38 is further arranged, which is controlled by the electronic control unit 28.
  • the electrostatic filter 38 has a series of electrically charged plates 40 arranged parallel to the flow direction. Furthermore, it is traversed in its input area by a network, not shown, under electrical tension standing wires. Individual particles that are still in the air stream 36 are electrically charged by the wires and thus deposited on the electrically charged plates 40 from. Finally, a substantially purified air stream 30 leaves the filter assembly 24.
  • the electrostatic filter 38 may be replaced by a chemical filter for reducing the CO 2 content of the air flowing through, a UV filter in which the air is irradiated with UV radiation, a catalyst or the like.
  • Fig. 4 shows a schematic representation of a city bus 42, which moves at the speed v. Accordingly, it is polluted by polluted ambient air 16.
  • the erf ⁇ ndungshiele device 44 is arranged, which is traversed by the polluted ambient air 16 due to the wind wind and cleans this.
  • FIG. 5 schematically shows a possible construction of a filter arrangement 46 which is arranged in the device 44 according to the invention on the roof of the bus 42 according to FIG.
  • a plurality of filter types are arranged in a housing 48.
  • the filter 50 is a close-meshed fabric filter for filtering particulate floats from the polluted ambient air 16.
  • an electrostatic filter 52 which is constructed according to the above description and works accordingly.
  • a catalyst 54 for example a titanium oxide catalyst.
  • a chemical filter for reducing the CO 2 content is provided in front of the outlet of the filter arrangement.
  • a significant advantage of the invention is that the filter assembly is mobile and is used effectively where the air pollution is generated, namely on traffic routes. For this purpose, no additional effort is required to station the filter assembly accordingly.
  • the efficiency of the device according to the invention can be maintained at a high level.
  • the device according to the invention is constructed as a self-sufficient system and requires no additional supply of energy from the outside.
  • the electronic control unit 28 can be operated via the kinetic energy of the incoming ambient air, for example using a turbine-driven generator. Overall, a simple, compact yet effective system for cleaning polluted ambient air results.

Abstract

The invention relates to a device for the relative wind-supported filtering of polluted air (16) surrounding vehicles (10). Said device comprises the following elements: an air supply (22) via which polluted air (16) surrounding the vehicle (10) can be taken in in a relative wind-supported manner during travel of said vehicle, a filter system (24) which is mounted downstream of the air intake (22) and through which polluted air (16) taken in through the air intake (22) can be guided and cleaned, and an air outlet via which the cleaned air (30) which has flown through the filter system (24) can be released to the surroundings of the vehicle (10). The invention further relates to an air deflector (14) which is provided with such a device.

Description

Vorrichtung zum fahrtwindunterstützten Filtern der Umgebungsluft von Fahrzeugen Device for the wind-assisted filtering of the ambient air of vehicles
Die vorliegende Erfindung betrifft eine Vorrichtung zum fahrtwindunterstützten Filtern der Umgebungsluft von Fahrzeugen.The present invention relates to a device for the wind-assisted filtering of the ambient air of vehicles.
In der Vergangenheit wurde eine Vielzahl technischer Maßnahmen ergriffen, um dem Problem des ständig zunehmenden Verkehrsaufkommens und der damit verbundenen Luftverschmutzung durch Abgase, Feinstaub und Cθ2-Ausstoß zu begegnen. Neben Bemühungen, den Gütertransport mehr auf die Schiene zu verlagern, wurden auch an den Fahrzeugen selbst Vorkehrungen getroffen, wie etwa der Einbau von Katalysatoren, Rußpartikelfiltern, effizienteren Abgassystemen, die Verwendung von emissionsarmen Verbrennungsmotoren, etc., um so die durch jedes einzelne Fahrzeug verursachte Luftverschmutzung zu reduzieren.In the past, a variety of technical measures have been taken to address the problem of ever-increasing traffic and related air pollution from exhaust gases, particulate matter and CO 2 emissions. In addition to efforts to shift goods transport to rail, precautions have also been taken on the vehicles themselves, such as the installation of catalytic converters, particulate filters, more efficient exhaust systems, the use of low-emission internal combustion engines, etc., to cater for each individual vehicle To reduce air pollution.
Trotz erheblicher technischer Fortschritte reichen die getroffenen Maßnahmen noch lange nicht aus. Insbesondere die in jüngerer Zeit auftretenden hohen Feinstaubkonzentrationen in Ballungszentren zeigen, dass trotz des technischen Fortschritts bei der Reduzierung von Abgasemissionen bei jedem Fahrzeug das hohe Verkehrsaufkommen in Summe immer noch zu einer beträchtlichen Luftverschmutzung führt. Hinzu kommt das Erfordernis, den Ausstoß von CO2 zukünftig in erheblichem Maß zu reduzieren.Despite considerable technical progress, the measures taken are far from sufficient. In particular, the recent high levels of particulate matter concentrations in metropolitan areas show that despite the technical progress in reducing exhaust emissions in each vehicle, the high volume of traffic still leads in total to considerable air pollution. Added to this is the requirement to significantly reduce the emission of CO 2 in the future.
Aus dem Stand der Technik sind bereits Filtersysteme bekannt, die fahrtwindunterstützt die in einen Fahrzeuginnenraum eingeleitete Umgebungsluft filtern. Bei herkömmlichen Kraftfahrzeugen sind derartige Filter beispielsweise im Einsatz, um unter Allergien leidende Personen im Fahrzeuginnenraum vor diese Allergien auslösenden Partikeln, wie Pollen oder dergleichen, zu schützen.Filter systems are already known from the state of the art, which, supported by the current wind, filter the ambient air introduced into a vehicle interior. In conventional motor vehicles, such filters are used, for example, to protect persons suffering from allergies in the vehicle interior from particles that trigger allergies, such as pollens or the like.
Auch im Bereich von Nutzfahrzeugen sind derartige Anordnungen bekannt. Beispielsweise zeigt das Dokument GB 2 121 161 A eine solche Anordnung, die auf dem Dach eines Nutzfahrzeugs anbringbar ist und gewährleistet, dass in den Fahrzeuginnenraum nur hinreichend gefilterte Luft eingeleitet wird. Ein mit einem solchen System ausgerüstetes Nutzfahrzeug lässt sich insbesondere an Einsatzorten mit stark kontaminierter Luft verwenden. Des Weiteren zeigt das Dokument DE 39 16 692 Al einen Lastkraftwagen mit einem Windabweiser, in den ein an sich bekanntes Kühler-Lüfter-Aggregat für den Lastwagen integriert ist.Also in the field of commercial vehicles such arrangements are known. For example, document GB 2 121 161 A shows such an arrangement which can be mounted on the roof of a commercial vehicle and ensures that only sufficiently filtered air is introduced into the vehicle interior. A commercial vehicle equipped with such a system can be used in particular at places of use with heavily contaminated air. Furthermore, the document DE 39 16 692 Al a truck with a wind deflector, in which a per se known radiator fan assembly is integrated for the truck.
Es ist Aufgabe der vorliegenden Erfindung, eine Vorrichtung der eingangs bezeichneten Art bereitzustellen, die bei einfachem und kostengünstigem Aufbau und der Möglichkeit einer einfachen Nachrüstung von Fahrzeugen zur Reduzierung der Verschmutzung der Umgebungsluft beiträgtIt is an object of the present invention to provide a device of the type described, which contributes to a simple and inexpensive construction and the possibility of easy retrofitting of vehicles to reduce the pollution of the ambient air
Diese Aufgabe wird durch eine Vorrichtung zum fahrtwindunterstützten Filtern von Umgebungsluft von Fahrzeugen gelöst, die ausgeführt ist mit: einer Luftzuführung, über die fahrtwindunterstützt Umgebungsluft während der Fahrt desThis object is achieved by a device for wind-assisted filtering of ambient air from vehicles, which is carried out with: an air supply, via which the wind-assisted ambient air during the driving of the
Fahrzeugs aufnehmbar ist, einer stromabwärts der Luftzuführung angeordneten Filteranordnung, durch die die über die Luftzuführung aufgenommene Umgebungsluft hindurch führbar ist, und einem Luftauslass, über den durch die Filteranordnung hindurch geströmte gereinigte Luft an die Umgebung des Fahrzeugs abgebbar ist.Vehicle is receivable, a downstream of the air supply arranged filter assembly, through which the ambient air received via the air supply can be guided, and an air outlet, over the filtered through the filter assembly through which purified air can be discharged to the environment of the vehicle.
Erfindungsgemäß ist vorgesehen, dass der Vorrichtung während der Fahrt des Fahrzeugs verschmutzte Umgebungsluft über die Luftzuführung zugeführt wird. Dies geschieht fahrtwindunterstützt und damit ohne zusätzlichen Energieaufwand. Die Relativbewegung zwischen der Umgebungsluft und dem sich fortbewegenden Fahrzeug und die daraus resultierende kinetische Energie wird dazu genutzt, um die zugeführte Umgebungsluft durch die Filteranordnung hindurchzuführen. Während die zugeführte Umgebungsluft, welche durch Emissionen anderer Fahrzeuge, Feinstaub, CO2 und dergleichen mehr oder weniger stark verschmutzt ist, durch die Filteranordnung hindurch strömt, wird diese zugeführte verschmutzte Umgebungsluft in der Filteranordnung gereinigt. Nach dem Reinigungsvorgang wird die gereinigte Luft an die Umgebung abgegeben. In der Filteranordnung können passive Filter, wie beispielsweise feinmaschige Filter, aber auch aktive Filter, wie beispielsweise reaktive Filter, insbesondere Katalysatoren, zum Einsatz kommen. Hierauf wird im Folgenden noch im Detail eingegangen. Je nach Ausgestaltung der Filteranordnung ist die Vorrichtung zu dimensionieren. Insgesamt kann mit der erfindungsgemäßen Vorrichtung erreicht werden, dass verschmutzte Umgebungsluft durch ein mit der erfindungsgemäßen Vorrichtung entsprechend ausgestattetes Fahrzeug zu einem gewissen Grad gereinigt wird. Dadurch lässt sich die Umweltbilanz eines jeden Fahrzeugs, insbesondere die Umweltbilanz von Nutzfahrzeugen, wie Kleintransporter, Lastkraftwagen oder Bussen, aber auch von Kraftfahrzeugen, wie PKWs, SUVs (Sports Utility Vehicles) je nach Auslegung und Effizienz der Filteranordnung erheblich verbessern. Gerade im Bereich von stark befahrenen Straßen, wie Autobahnen oder Hauptverkehrsadern in Ballungszentren, kann dann, wenn eine große Zahl von Fahrzeugen mit der erfindungsgemäßen Vorrichtung ausgestattet ist, eine spürbare Reduzierung der Luftverschmutzung erzielt werden. Auch ist erfindungsgemäß möglich, derartige Vorrichtungen auf Schienenfahrzeugen anzubringen.According to the invention it is provided that the device during operation of the vehicle polluted ambient air is supplied via the air supply. This is done with wind-assisted and thus without additional energy. The relative movement between the ambient air and the traveling vehicle and the resulting kinetic energy is used to pass the supplied ambient air through the filter assembly. While the supplied ambient air, which is more or less heavily polluted by emissions from other vehicles, particulate matter, CO 2, and the like, flows through the filter assembly, this contaminated ambient air supplied is cleaned in the filter assembly. After the cleaning process, the purified air is released to the environment. In the filter assembly, passive filters, such as fine-meshed filters, but also active filters, such as reactive filters, in particular catalysts, are used. This will be discussed in detail below. Depending on the configuration of the filter arrangement, the device is to be dimensioned. Overall, it can be achieved with the device according to the invention that polluted ambient air is purified to a certain extent by a vehicle equipped accordingly with the device according to the invention. As a result, the environmental performance of each vehicle, in particular the environmental performance of commercial vehicles, such as vans, trucks or buses, but also of motor vehicles, such as cars, SUVs (Sports Utility Vehicles), depending on the design and efficiency of the filter assembly significantly improved. Especially in the area of busy roads, such as highways or main traffic arteries in urban centers, when a large number of vehicles equipped with the device according to the invention, a significant reduction in air pollution can be achieved. It is also possible according to the invention to mount such devices on rail vehicles.
In der Praxis ist darauf zu achten, dass die erfindungsgemäße Vorrichtung mit möglichst geringem Gewicht ausgebildet ist, um nicht den Kraftstoffverbrauch der damit ausgerüsteten Fahrzeuge zu erhöhen. Auch sollten die aerodynamischen Eigenschaften der mit der Erfindung ausgerüsteten Fahrzeuge dadurch nicht wesentlich beeinträchtigt werden.In practice, it should be ensured that the device according to the invention is designed with the least possible weight so as not to increase the fuel consumption of the vehicles equipped with it. Also, the aerodynamic properties of the vehicles equipped with the invention should not be significantly impaired.
Grundsätzlich können verschiedene Filtertypen zum Einsatz kommen. Insbesondere kann erfindungsgemäß vorgesehen sein, dass die Filteranordnung mehrere verschiedene Filtertypen umfasst. So sieht eine Ausführungsvariante der Erfindung vor, dass die Filteranordnung einen Partikelfilter, insbesondere einen Feinstaub-Partikelfilter, aufweist. Derartige Filter können aus einem äußerst engmaschigen Gewebe aus synthetischen Fasern und Zellulose bestehen.In principle, different filter types can be used. In particular, it can be provided according to the invention that the filter arrangement comprises a plurality of different filter types. Thus, an embodiment variant of the invention provides that the filter arrangement has a particle filter, in particular a particulate matter particulate filter. Such filters may consist of a very close-meshed fabric of synthetic fibers and cellulose.
Ferner ist erfindungsgemäß möglich, dass die Filteranordnung einen Aktivkohlefilter aufweist.Furthermore, it is possible according to the invention that the filter arrangement has an activated carbon filter.
Darüber hinaus kann erfindungsgemäß vorgesehen sein, dass die Filteranordnung einen Katalysator, insbesondere einen Titanoxid-Katalysator aufweist.In addition, it can be provided according to the invention that the filter arrangement comprises a catalyst, in particular a titanium oxide catalyst.
Zusätzlich oder alternativ zu den vorstehend genannten Filtertypen kann gemäß der Erfindung auch vorgesehen sein, dass die Filteranordnung wenigstens einen elektrisch gesteuerten Filter aufweist. Dabei kann die erforderliche elektrische Energie von der Lichtmaschine des Fahrzeugs abgeleitet werden. Um die erfindungsgemäße Vorrichtung jedoch energieneutral auszu- führen, das heißt unabhängig vom Bordnetz des Kraftfahrzeugs sozusagen autark betreiben zu können, kann erfindungsgemäß auch vorgesehen sein, dass die Vorrichtung einen fahrtwindgetriebenen Generator aufweist. In diesem Zusammenhang sieht eine Weiterbildung der Erfindung vor, dass die Filteranordnung einen elektrostatischen Filter aufweist. Ein derartiger elektrostatischer Filter kann beispielsweise aus einem System aus mehreren parallel angeordneten, elektrisch geladenen Metallplatten bestehen, um mit deren Hilfe vorher elektrisch aufgeladene Staub- und Schmutzpartikel anzuziehen und dadurch von der durch den elektrostatischen Filter hindurch strömenden verschmutzten Luft abzutrennen.In addition or as an alternative to the filter types mentioned above, according to the invention it can also be provided that the filter arrangement has at least one electrically controlled filter. In this case, the required electrical energy can be derived from the alternator of the vehicle. However, in order to make the device according to the invention energy-neutral, lead, that is, independent of the electrical system of the motor vehicle to operate as it were self-sufficient, can also be provided according to the invention that the device has a running wind-driven generator. In this connection, a development of the invention provides that the filter arrangement has an electrostatic filter. Such an electrostatic filter may for example consist of a system of a plurality of parallel, electrically charged metal plates to attract with their help previously charged electrically charged dust and dirt particles and thereby separate from the flowing through the electrostatic filter polluted air.
Erfindungsgemäß kann ferner vorgesehen sein, dass die Filteranordnung einen CO2-Filter aufweist. Dieser kann beispielsweise derart ausgeführt sein, dass er CO2 mit einem leicht zu entsorgenden chemischen Agens bindet und/oder durch UV-Bestrahlung der durch die erfindungsgemäße Vorrichtung hindurch strömenden Luft aufspaltet.According to the invention, it may further be provided that the filter arrangement has a CO 2 filter. This can for example be designed such that it binds CO 2 with a readily disposable chemical agent and / or splits by UV irradiation of the air flowing through the device according to the invention.
Es versteht sich, dass die vorstehend genannten Filter zumindest teilweise trotz effizienter Arbeitsweise von Zeit zu Zeit gereinigt oder ersetzt werden müssen. Hierfür kann die erfindungsgemäße Vorrichtung entsprechend ausgebildet sein, indem sie in ihrem Gehäuse verschließbare Zugangsöffnungen aufweist.It should be understood that the filters mentioned above, at least in part, need to be cleaned or replaced from time to time despite efficient operation. For this purpose, the device according to the invention can be designed accordingly by having closable access openings in its housing.
Um die Reinigungswirkung der erfindungsgemäßen Vorrichtung qualitativ oder quantitativ zu erfassen, sieht eine Weiterbildung der Erfindung vor, dass die Vorrichtung eine Erfassungseinrichtung zum Ermitteln des durch die Vorrichtung hindurchströmenden Luftstroms aufweist. Anhand des aktuell erfassten Luftstroms lässt sich durch Integration über die Zeit und unter Berücksichtigung der Abmessungen der Luftzuführung auf das über die Zeit gereinigte Luftvolumen schließen. Erfindungsgemäß kann in diesem Zusammenhang vorgesehen sein, dass im Cockpit des Fahrzeugs eine entsprechende Anzeige angeordnet ist, die dem Fahrer Aufschluss über das gereinigte Luftvolumen gibt. Darüber hinaus können Überwachungssensoren an den einzelnen Filtern der Filteranordnung angeordnet sein, um deren Funktionstauglichkeit und den aktuellen Verschmutzungsgrad zu ermitteln. Gegebenenfalls wird ein sichtbares und/oder hörbares Warnsignal im Fahrzeuginnenraum ausgegeben, beispielsweise ein Signalton oder durch Aktivieren einer Signalleuchte, wenn einer oder mehrere Filter der erfindungsgemäßen Vorrichtung zu warten oder auszutauschen sind. Gemäß einer bevorzugten Ausfuhrungsvariante der Erfindung kann vorgesehen sein, dass die Vorrichtung in einen Luftabweiser integrierbar ist, der auf einem Dach eines Nutzfahrzeuges, insbesondere eines Busses oder eines Lastkraftwagens angeordnet ist. Durch diese Maßnahme ist gewährleistet, dass die erfindungsgemäße Vorrichtung aufgrund der exponierten Anordnung des Luftabweisers während der Fahrt des Fahrzeugs stets hinreichend stark von zu filternder verschmutzter Umgebungsluft durchströmt wird. Dabei kann erfindungsgemäß vorgesehen sein, dass der Luftabweiser an seiner Frontseite wenigstens eine, vorzugsweise lamellenförmige, Aufnahmeöffnung aufweist, die mit der Luftzuführung verbunden ist. Alternativ ist es aber auch möglich, die erfindungsgemäße Vorrichtung in der Fahrzeugkarosserie zu integrieren, beispielsweise Motorraum, am Fahrzeugboden oder im Heckbereich unter dem Kofferraum, und die zu filternde Luft über in der Frontpartie des Fahrzeugs angeordnete Lufteinlässe zuzuführen. Der erforderliche Luftauslass kann in der Heckpartie des Fahrzeugs angeordnet sein, wobei Lufteinlässe und Luftauslass harmonisch in das Fahrzeugdesign eingebunden werden können. Eine solche integrierte Lösung bietet sich insbesondere bei dem Einsatz der erfindungsgemäßen Vorrichtung in PKWs an.In order to detect the cleaning effect of the device according to the invention qualitatively or quantitatively, a development of the invention provides that the device has a detection device for determining the air flow flowing through the device. On the basis of the currently recorded air flow, the integration over time and taking into account the dimensions of the air supply to the air volume purified over time can be concluded. According to the invention can be provided in this context that in the cockpit of the vehicle, a corresponding display is arranged, which gives the driver information about the purified air volume. In addition, monitoring sensors can be arranged on the individual filters of the filter assembly to determine their functionality and the current degree of contamination. Optionally, a visible and / or audible warning signal is output in the vehicle interior, for example a signal tone or by activating a signal light when one or more filters of the device according to the invention are to be maintained or replaced. According to a preferred embodiment of the invention it can be provided that the device can be integrated into an air deflector, which is arranged on a roof of a commercial vehicle, in particular a bus or a truck. By this measure, it is ensured that the device according to the invention is always adequately flowed through by polluted ambient air to be filtered due to the exposed arrangement of the air deflector while driving the vehicle. It can be inventively provided that the air deflector has on its front side at least one, preferably lamellar, receiving opening which is connected to the air supply. Alternatively, it is also possible to integrate the device according to the invention in the vehicle body, for example, engine compartment, on the vehicle floor or in the rear area under the trunk, and to supply the air to be filtered via arranged in the front end of the vehicle air inlets. The required air outlet may be located in the rear of the vehicle, with air intakes and air outlet integrated harmoniously with the vehicle design. Such an integrated solution is particularly useful in the use of the device according to the invention in cars.
Die Erfindung betrifft ferner einen Luftabweiser für ein Nutzfahrzeug, insbesondere zur Anbringung auf einem Dach eines Lastkraftwagens oder eines Busses, wobei der Luftabweiser wenigstens eine vorzugsweise lamellenförmige Aufnahmeöffnung aufweist, und wobei eine Vorrichtung zum fahrtwindunterstützten Filtern von Umgebungsluft der vorstehend beschriebenen Art in dem Luftabweiser integriert ist.The invention further relates to an air deflector for a utility vehicle, in particular for attachment to a roof of a truck or a bus, wherein the air deflector has at least one preferably lamellar receiving opening, and wherein a device for wind-assisted filtering of ambient air of the type described above is integrated in the air deflector ,
Die Erfindung wird im Folgenden beispielhaft anhand der beiliegenden Figuren erläutert. Es stellen dar:The invention is explained below by way of example with reference to the accompanying figures. They show:
Fig. 1 eine schematische Darstellung eines Lastkraftwagens mit Windabweiser;Figure 1 is a schematic representation of a truck with wind deflector.
Fig. 2 eine perspektivische Darstellung des Windabweisers mit integrierter Filteranordnung;FIG. 2 shows a perspective view of the wind deflector with integrated filter arrangement; FIG.
Fig. 3 eine schematische Darstellung der Filteranordnung gemäß Figur 2;3 shows a schematic illustration of the filter arrangement according to FIG. 2;
Fig. 4 eine schematische Darstellung eines Stadtbusses mit auf dem Dach angeordneter erfindungsgemäßer Vorrichtung und Fig. 5 eine schematische Darstellung der auf dem Dach des Busses gemäß Figur 4 angeordneten Filteranordnung.Fig. 4 is a schematic representation of a city bus with arranged on the roof device according to the invention and Fig. 5 is a schematic representation of the arranged on the roof of the bus according to Figure 4 filter arrangement.
In Fig. 1 ist ein Lastkraftwagen schematisch dargestellt und allgemein mit 10 bezeichnet. Dieser umfasst ein Führerhaus 12, auf dessen Dach ein Luftabweiser 14 angebracht ist. Der Lastkraftwagen 10 fährt mit einer Geschwindigkeit v. Dementsprechend strömt Umgebungsluft gegen das Führerhaus 12 und gegen den Luftabweiser 14, wie schematisch mit dem Pfeil 16 dargestellt. Diese Umgebungsluft 16 ist zu einem gewissen Grad verschmutzt. Sie enthält Feinstaubpartikel, Abgase anderer Fahrzeuge, CO2 etc.In Fig. 1, a truck is shown schematically and generally designated 10. This includes a cab 12, on whose roof an air deflector 14 is mounted. The truck 10 is traveling at a speed v. Accordingly, ambient air flows against the cab 12 and against the air deflector 14 as schematically indicated by the arrow 16. This ambient air 16 is contaminated to some degree. It contains particulate matter, exhaust gases of other vehicles, CO 2 etc.
Fig. 2 zeigt in perspektivischer Einzelteildarstellung den Luftabweiser 14 gemäß Figur 1. Dieser umfasst ein Gehäuse mit einer aerodynamisch geformten, schräg ansteigenden, vorderen Wand 20. In dieser vorderen Wand 20 ist eine Reihe von quer liegenden, lamellenartig angeordneten Lufteinlassschlitzen 22 vorgesehen, durch die verschmutzte Umgebungsluft 16 in das Innere des Gehäuses des Luftabweisers 14 fahrtwindbedingt einströmen kann. Im Gehäuse des Luftabweisers 14 ist eine Filteranordnung 24 untergebracht. Diese umfasst einen Filterkörper 26 sowie in eine elektronische Steuereinheit 28.FIG. 2 shows an exploded perspective view of the air deflector 14 according to FIG. 1. It comprises a housing with an aerodynamically shaped, obliquely rising, front wall 20. In this front wall 20 is provided a series of transverse air inlet slots 22 arranged like a louver through which polluted ambient air 16 can flow into the interior of the housing of the air deflector 14 due to wind. In the housing of the air deflector 14, a filter assembly 24 is housed. This comprises a filter body 26 and in an electronic control unit 28th
Wie im Folgenden im Detail beschrieben, wird die über die Lufteinlassschlitze 22 eingeleitete, verschmutzte Umgebungsluft 16 in der Filteranordnung 24 wesentlich gereinigt, so dass nach Durchströmen der Filteranordnung 24 gereinigte Luft 30 an die Umgebung abgegeben werden kann.As described in detail below, the contaminated ambient air 16 introduced via the air inlet slots 22 is substantially cleaned in the filter arrangement 24, so that after passing through the filter arrangement 24, purified air 30 can be released to the environment.
Fig. 3 zeigt in vereinfachter Darstellung den Aufbau der Filteranordnung 24. Die Filteranordnung 24 weist einen Partikelfilter 32 auf. Dieser wird als erstes von der zuströmenden verschmutzten Umgebungsluft 16 durchströmt. Der Partikelfilter 32 besteht aus einem sehr engmaschigen Gewebe aus synthetischen Fasern und Zellulose und dient dazu, Schwebestoffe geringerer Größe, insbesondere Feinstaub, aus der Umgebungsluft auszufiltern. Der Partikelfilter 32 ist entnehmbar in einem Gehäuse 34 der Filteranordnung 24 angeordnet. Er kann bedarfsweise ausgetauscht oder zur Reinigung entnommen werden. Wie in Figur 3 schematisch dargestellt, ist die den Partikelfilter 32 verlassende Luft 36 gegenüber der verschmutzten zuströmenden Umgebungsluft 16 von Partikeln, insbesondere Feinstaubpartikeln, weitgehend gereinigt.FIG. 3 shows a simplified representation of the structure of the filter arrangement 24. The filter arrangement 24 has a particle filter 32. This is flowed through first by the incoming polluted ambient air 16. The particle filter 32 consists of a very close-meshed fabric of synthetic fibers and cellulose and serves to filter out suspended matter of smaller size, in particular fine dust, from the ambient air. The particulate filter 32 is removably disposed in a housing 34 of the filter assembly 24. It can be replaced as needed or removed for cleaning. As shown schematically in FIG. 3, the air 36 leaving the particle filter 32 is opposite the polluted one incoming ambient air 16 of particles, in particular fine dust particles, largely cleaned.
In dem Gehäuse 34 ist ferner ein elektrostatischer Filter 38 angeordnet, der über die elektronische Steuereinheit 28 gesteuert wird. Der elektrostatische Filter 38 weist eine Reihe von parallel zur Strömungsrichtung angeordneten, elektrisch geladenen Platten 40 auf. Ferner ist er in seinem Eingangsbereich von einem nicht gezeigten Netz unter elektrischer Spannung stehender Drähte durchzogen. Einzelne Partikel, die sich noch im Luftstrom 36 befinden, werden von den Drähten elektrisch aufgeladen und lagern sich demzufolge an den elektrisch geladenen Platten 40 ab. Schließlich verlässt ein substanziell gereinigter Luftstrom 30 die Filteranordnung 24.In the housing 34, an electrostatic filter 38 is further arranged, which is controlled by the electronic control unit 28. The electrostatic filter 38 has a series of electrically charged plates 40 arranged parallel to the flow direction. Furthermore, it is traversed in its input area by a network, not shown, under electrical tension standing wires. Individual particles that are still in the air stream 36 are electrically charged by the wires and thus deposited on the electrically charged plates 40 from. Finally, a substantially purified air stream 30 leaves the filter assembly 24.
Es versteht sich, dass erfindungsgemäß auch andere Filtertypen oder Filtertyperv Kombinationen eingesetzt werden können, als in Figur 3 gezeigt. Beispielsweise kann der elektrostatische Filter 38 durch einen chemischen Filter zur Reduzierung des CO2-Gehalts der durchströmenden Luft, einen UV-Filter, in dem die Luft mit UV-Strahlung bestrahlt wird, einen Katalysator oder dergleichen ersetzt werden.It is understood that according to the invention, other filter types or filter type combinations can be used, as shown in FIG. For example, the electrostatic filter 38 may be replaced by a chemical filter for reducing the CO 2 content of the air flowing through, a UV filter in which the air is irradiated with UV radiation, a catalyst or the like.
Fig. 4 zeigt eine schematische Darstellung einen Stadtbusses 42, der sich mit der Geschwindigkeit v fortbewegt. Dementsprechend wird er von verschmutzter Umgebungsluft 16 angeströmt. Auf dem Dach des Stadtbusses 42 ist die erfϊndungsgemäße Vorrichtung 44 angeordnet, die fahrtwindbedingt von der verschmutzten Umgebungsluft 16 durchströmt wird und diese dabei reinigt.Fig. 4 shows a schematic representation of a city bus 42, which moves at the speed v. Accordingly, it is polluted by polluted ambient air 16. On the roof of the city bus 42, the erfϊndungsgemäße device 44 is arranged, which is traversed by the polluted ambient air 16 due to the wind wind and cleans this.
Fig. 5 zeigt schematisch einen möglichen Aufbau einer Filteranordnung 46, die in der erfin- dungsgemäßen Vorrichtung 44 auf dem Dach des Busses 42 gemäß Figur 4 angeordnet ist. Wiederum ist in einem Gehäuse 48 eine Mehrzahl von Filtertypen angeordnet. Bei dem Filter 50 handelt es sich um einen engmaschigen Gewebefilter zum Ausfiltern von partikulären Schwebekörpern aus der verschmutzten Umgebungsluft 16. An diesen schließt sich ein elektrostatischer Filter 52 an, der gemäß vorstehender Beschreibung aufgebaut ist und dementsprechend funktioniert. Daran schließt sich ein Katalysator 54 an, beispielsweise ein Titanoxid- Katalysator. Schließlich ist vor dem Auslass der Filteranordnung noch ein chemischer Filter zum Reduzieren des CO2-Gehalts vorgesehen. Mit der erfindungsgemäßen Vorrichtung ist es möglich, die Umweltbilanz eines jeden damit ausgestatteten Fahrzeugs, insbesondere von PKWs und Nutzfahrzeugen, deutlich zu verbessern. Insbesondere in stark befahrenen Ballungszentren lässt sich dadurch der Grad der Umweltverschmutzung reduzieren. Ein wesentlicher Vorteil der Erfindung besteht darin, dass die Filteranordnung mobil ist und genau dort wirksam zum Einsatz kommt, wo die Luftverschmutzung erzeugt wird, nämlich auf Verkehrswegen. Hierfür ist kein zusätzlicher Aufwand erforderlich, um die Filteranordnung entsprechend zu stationieren.5 schematically shows a possible construction of a filter arrangement 46 which is arranged in the device 44 according to the invention on the roof of the bus 42 according to FIG. Again, a plurality of filter types are arranged in a housing 48. The filter 50 is a close-meshed fabric filter for filtering particulate floats from the polluted ambient air 16. To these adjoins an electrostatic filter 52, which is constructed according to the above description and works accordingly. This is followed by a catalyst 54, for example a titanium oxide catalyst. Finally, a chemical filter for reducing the CO 2 content is provided in front of the outlet of the filter arrangement. With the device according to the invention, it is possible to significantly improve the environmental performance of each vehicle equipped therewith, in particular of passenger cars and commercial vehicles. In particular, in heavily populated urban centers can thereby reduce the level of pollution. A significant advantage of the invention is that the filter assembly is mobile and is used effectively where the air pollution is generated, namely on traffic routes. For this purpose, no additional effort is required to station the filter assembly accordingly.
Bei regelmäßiger Wartung, Reinigung oder erforderlichenfalls Austausch betroffener Filterkomponenten kann die Effizienz der erfindungsgemäßen Vorrichtung auf hohem Niveau gehalten werden.With regular maintenance, cleaning or, if necessary, replacement of affected filter components, the efficiency of the device according to the invention can be maintained at a high level.
Auch lassen sich PKWs und insbesondere Nutzfahrzeuge mit der erfindungsgemäßen Vorrichtung unter geringem Kosten- und Montageaufwand leicht nachrüsten, da die erfindungsgemäße Vorrichtung als autarkes System aufgebaut ist und keine zusätzliche Versorgung mit Energie von außen benötigt. Die elektronische Steuereinheit 28 lässt sich gegebenenfalls über die kinetische Energie der zuströmenden Umgebungsluft betreiben, beispielsweise unter Verwendung eines turbinengetriebenen Generators. Insgesamt ergibt sich ein einfaches, kompaktes und dennoch wirksames System zur Reinigung von verschmutzter Umgebungsluft. Also, cars and especially commercial vehicles can be easily retrofitted with the device according to the invention with low cost and installation costs, since the device according to the invention is constructed as a self-sufficient system and requires no additional supply of energy from the outside. If necessary, the electronic control unit 28 can be operated via the kinetic energy of the incoming ambient air, for example using a turbine-driven generator. Overall, a simple, compact yet effective system for cleaning polluted ambient air results.

Claims

Patentansprüche claims
1. Vorrichtung zum fahrtwindunterstützten Filtern von verschmutzter Umgebungsluft (16) von Fahrzeugen (10) mit einer Luftzuführung (22), über die fahrtwindunterstützt verschmutzte Umgebungsluft (16) während der Fahrt des Fahrzeugs (10) aufnehmbar ist, einer stromabwärts der Luftzuführung (22) angeordneten Filteranordnung (24), durch die die über die Luftzuführung (22) aufgenommene verschmutzte Umgebungsluft (16) hindurchführbar und reinigbar ist, und einem Luftauslass, über den durch die Filteranordnung (24) hindurch geströmte gereinigte Luft (30) an die Umgebung des Fahrzeugs (10) abgebbar ist.1. A device for the wind-assisted filtering of contaminated ambient air (16) of vehicles (10) with an air feed (22), via which wind-assisted contaminated ambient air (16) can be received during the drive of the vehicle (10), one downstream of the air feed (22). arranged filter assembly (24) through which the polluted ambient air (16) received via the air supply (22) can be passed and cleaned, and an air outlet, over the purified air (30) which has flowed through the filter arrangement (24) to the surroundings of the vehicle (10) is deliverable.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Filteranordnung (24) einen Partikelfilter, insbesondere einen Feinstaub-Partikelfilter (32) aufweist.2. Apparatus according to claim 1, characterized in that the filter arrangement (24) has a particle filter, in particular a particulate matter particulate filter (32).
3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Filteranordnung einen Aktivkohlefilter aufweist.3. Apparatus according to claim 1 or 2, characterized in that the filter arrangement comprises an activated carbon filter.
4. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet', dass die Filteranordnung einen Katalysator, insbesondere einen Titanoxid-Katalysator aufweist.4. Device according to one of the preceding claims, characterized ' , that the filter assembly comprises a catalyst, in particular a titanium oxide catalyst.
5. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Filteranordnung (24) wenigstens einen elektrisch gesteuerten Filter (38) aufweist.5. Device according to one of the preceding claims, characterized in that the filter arrangement (24) has at least one electrically controlled filter (38).
6. Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, dass die Vorrichtung einen fahrtwindgetriebenen Generator aufweist. 6. Apparatus according to claim 5, characterized in that the device comprises a running wind driven generator.
7. Vorrichtung nach Anspruch 5 oder Anspruch 6, dadurch gekennzeichnet, dass die Filteranordnung (24) einen elektrostatischen Filter (38) aufweist.7. Apparatus according to claim 5 or claim 6, characterized in that the filter arrangement (24) comprises an electrostatic filter (38).
8. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Vorrichtung eine Erfassungseinrichtung zum Ermitteln des durch die Vorrichtung hindurchströmenden Luftvolumens aufweist.8. Device according to one of the preceding claims, characterized in that the device comprises a detection device for determining the air volume flowing through the device.
9. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Filteranordnung eine CO2-Filter aufweist.9. Device according to one of the preceding claims, characterized in that the filter arrangement comprises a CO 2 filter.
10. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass sie in einem Luftabweiser (14) integrierbar ist, der auf einem Dach eines Nutzfahrzeuges (10), insbesondere eines Busses oder eines Lastkraftwagens, angeordnet ist.10. Device according to one of the preceding claims, characterized in that it is in an air deflector (14) can be integrated, which is arranged on a roof of a commercial vehicle (10), in particular a bus or a truck.
11. Vorrichtung nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Luftabweiser (14) an seiner Frontseite (20) wenigstens eine vorzugsweise lamellenförmige Aufnahmeöffnung aufweist, die mit der Luftzuführung (22) verbunden ist.11. Device according to one of the preceding claims, characterized in that the air deflector (14) on its front side (20) has at least one preferably lamellar receiving opening which is connected to the air supply (22).
12. Luftabweiser (14) für ein Nutzfahrzeug, insbesondere zur Anbringung auf einem Dach eines Lastkraftwagens (10) oder eines Busses, dadurch gekennzeichnet, dass er wenigstens eine vorzugsweise lamellenförmige Aufnahmeöffnung (zwar 20) aufweist, und dass eine Vorrichtung zum fahrtwindunterstützten Filtern von Umgebungsluft (16) nach einem der vorangehenden Ansprüche in dem Luftabweiser (14) integriert ist. 12. air deflector (14) for a commercial vehicle, in particular for attachment to a roof of a truck (10) or a bus, characterized in that it has at least one preferably lamellar receiving opening (although 20), and that a device for wind-assisted filtering of ambient air (16) according to one of the preceding claims in the air deflector (14) is integrated.
PCT/EP2009/008561 2008-12-02 2009-12-01 Device for the relative wind-supported filtering of the air surrounding vehicles WO2010063452A2 (en)

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WO2012152967A1 (en) * 2011-05-12 2012-11-15 Eusebio Moro Franco Air-purification device
CN104340017A (en) * 2013-07-30 2015-02-11 姚本海 Vehicle-mounted air quality optimizing device and mounting method thereof
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WO2017216611A1 (en) * 2016-06-16 2017-12-21 Lara Rodríguez Miguel Outdoor air purifier improved by air currents
WO2019111279A1 (en) * 2017-12-04 2019-06-13 Amol Chaphekar Pollution control device
CN110194094A (en) * 2019-05-28 2019-09-03 罗萍 A kind of automobile external formula flow model removes haze air cleaning unit
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WO2019111279A1 (en) * 2017-12-04 2019-06-13 Amol Chaphekar Pollution control device
CN110194094A (en) * 2019-05-28 2019-09-03 罗萍 A kind of automobile external formula flow model removes haze air cleaning unit
WO2021259671A1 (en) * 2020-06-22 2021-12-30 Frank Johne Terrestrial vehicle
CN113634056A (en) * 2021-10-15 2021-11-12 山东龙港化工有限公司 Four liquefied gas of carbon filter deacidification equipment

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