DE102019133794A1 - Vehicle fine dust collector and vehicle - Google Patents

Abstract

The invention relates to a vehicle collecting device (1) in which fine dust can be extracted from a vehicle part such as a brake lining, a brake disc, a clutch body or a tire by means of a suction device (15). The suction device (15) has a passive negative pressure unit (50) in which the Venturi effect is used. A flow channel (47) is delimited on the one hand by a stationary flow channel body (44) and on the other hand by a moving vehicle part (54), in particular a rotating rim (41). A boundary layer (45) is transported into the flow channel (47). A low pressure is generated at a constriction (48) in the flow channel (47). A suction channel (14) opens into the constriction (48) and can be used to extract the fine dust.

Description

TECHNICAL FIELD OF THE INVENTION

New studies, for example by the State Institute for the Environment, Measurements and Nature Conservation Baden-Württemberg (LUBW), have shown that not only diesel emissions lead to fine dust pollution in road traffic, but also fine dust with particle sizes PM 10 ("Particular Matter"; up to 10 µm in diameter) caused by vehicles ) up to 85% can be caused by tire abrasion, brake abrasion or road abrasion as well as by the stirring up of a layer of dust on the roadway. Since the resulting fine dust is a relevant factor in the fine dust balance of vehicles, the current switch to electric vehicles may only lead to a limited reduction in fine dust pollution. According to studies by the Swiss materials testing and research institute EMPA, brake wear alone accounts for around a fifth of traffic-related particulate matter emissions in cities. The Federal Highway Research Institute (BASt) has also determined that, together with the wear and tear of tires, an average of 0.1 g of particles is released per vehicle with every kilometer. In Germany, a total of well over 111,400 t of abrasion is thrown into the air and deposited on the streets. Abrasion from brakes can be particularly dangerous in the air we breathe. One reason for this is that the fine dust particles produced by the abrasion of the brakes mostly have dimensions in a size range of less than 0.1 µm (ultra-fine fraction of PM 2.5 fine dust particles), with which these very fine particles penetrate into the lung tissue and even into the Bloodstream. A further complicating factor is that materials such as nickel, chromium and copper can be used for the brake discs and brake pads, which means that the fine dust particles generated from them can have an additional harmful effect on health.

The invention relates to a vehicle fine dust collection device by means of which fine dust, in particular abrasion from tires, brakes or a clutch, can be collected directly on the vehicle. The invention also relates to a vehicle with such a vehicle fine dust collection device, wherein the vehicle can be, for example, a car, truck, motorcycle, train, bus, airplane or crane, etc.

STATE OF THE ART

DE 10 2007 009 744 A1 discloses a vehicle abrasion collecting device which has a suction nozzle which is arranged in an exhaust line of the vehicle so that its mouth is oriented away from the flow in the exhaust pipe, so that the flow of the exhaust gas using the Venturi principle in the suction nozzle Negative pressure generated. The suction nozzle is connected to a brake of the vehicle via a suction line in order to suck up abrasion from the brake. In this case, a collecting container for the abrasion of the brake can be arranged in the brake itself. It is also possible for a filter to be arranged in the exhaust gas line downstream of the suction connection in order to filter out a remaining part of the abrasion of the brake from the exhaust gas so that it does not get into the environment with the exhaust gas.

According to DE 4 240 873 C2 the pressure gradient for sucking off the abrasion from several brakes, for example a front axle, is generated by means of a common suction fan. The suction line connected to the suction fan opens into a suction bell made of sheet metal. The suction bell is attached to the brake caliper or the steering knuckle of the vehicle, extends on both sides of the brake disc and surrounds the outer edge of the brake disc. However, it is also possible for a suction bell to be arranged on each side of the brake disc. A filter or a collecting container for the abrasion can be removable or replaceable. A paper filter is used as the filter.

According to DE 60 224 858 T2 a collecting plate for abrasion is arranged adjacent to a brake, on which a magnetic or electrostatic field is generated, by which the abrasion of the brake is to be attracted to the collecting plate. The abrasion should then be stored in a collecting container. It is possible that the field is not generated permanently, but only when the brakes are applied. A corona discharge device has needles, by means of which the air can be ionized and thus debris contained in the air can be charged. By means of the corona discharge device, the effect of the attraction of the abrasion by the collecting plate can be increased. The debris can periodically be scraped off the collecting plates and fed to the storage container.

Also DE 20 2005 009 278 U1 suggests collecting abrasion from a brake by means of electrostatic charging, with a receiving body with a U-shaped cross section engaging around the brake disc. The receiving body has a base body made of plastic with an electrically conductive coating that can be electrostatically charged. The inside of the receiving body is lined with a fleece or a microfiber material in order to bind the abrasion and to hold it even when it is wet.

DE 10 2016 224 432 A1 suggests the use of a scattered light photometer to measure the concentration of particles from dust kicked up by the wheels of the vehicle or from debris from the brakes. Depending on the particle concentration detected, a vehicle abrasion collection device can then be operated selectively.

Also DE 10 2017 200 941 B4 discloses a measuring device for measuring the wear of a brake. For this purpose, an abrasion collecting funnel is placed near the brake. The abrasion collecting funnel is connected to a suction pump via a suction line, it being possible for a flow restriction orifice or a flow control device and a filter to be arranged in the suction line. The abrasion collecting funnel is screwed to an outer ring of the rim and lies airtight on the rim flange. The suction line has a rotating union.

According to DE 10 2017 201 736 A1 the brake linings of a brake are equipped with suction channels opening into the braking surfaces, which are connected to an abrasion collecting chamber via a suction pipe. The intake manifold has air inlets which have openings oriented in the direction of travel of the vehicle so that the airstream flows through them. On the other hand, the airflow from the air inlets enters the suction pipe with the direction of flow in the direction of the abrasion collecting container, so that the airflow flowing through the air inlets also exerts a suction effect on the suction channels opening into the friction surfaces. In the abrasion collecting container, the abrasion of the brake is separated by means of a cyclone separator. The air inlets can have a cross section that tapers in the direction of flow. The abrasion collecting device formed in this way can rest against the brake disc by means of a sealing lip surrounding the brake lining.

DE 10 2010 053 879 A1 proposes a vehicle abrasion collecting device in which at least the brake lining is surrounded by an encapsulation. The encapsulation can be an integral part of the brake caliper or a separate component. The encapsulation can be movable relative to the brake caliper. The encapsulation can also have a channel through which abrasion from the brake can be drained. Furthermore, the encapsulation can have a recess through which a brake actuator for the brake lining can pass. The recess can be sealed by a seal, in particular a rubber seal, a ceramic seal or a brush seal. The encapsulation can have a wiper that wipes off abrasion from the brake disc and thus holds it inside the encapsulation. The scraper can be a scraper plate or a scraper brush, in particular made of cobalt. A compression spring can act between the encapsulation and the brake caliper, which presses the encapsulation against the brake disc. However, it is also possible for a small gap to remain between the encapsulation and the brake disk. End faces of the encapsulation facing the brake disk can be made of ceramic, a heat-resistant metal or a heat-resistant plastic, or they can be coated with such a material.

According to EP 2 102 522 B1 For example, a vehicle abrasion collecting device is arranged adjacent to a brake caliper, a seal being arranged between the vehicle abrasion collecting device and the brake caliper. The vehicle abrasion collecting device surrounds the brake disc from the outside in a U-shape. The vehicle abrasion collection device has funnel-shaped air inlet openings. Air flowing through the air inlet openings is directed towards the brake disc in order to cool it. Air likewise flows through a further air inlet opening into a housing of the vehicle abrasion collecting device and to the brake disc. Wipers are pressed against the brake disc in order to scrape off any debris adhering to the brake disc. The wipers can be designed in the manner of a brush or have a contact lip and be heat-resistant. The scrapers can be aligned at an angle in order to specify a transport direction for the abrasion. The abrasion is then fed with the air flow from the air inlets to an abrasion collecting container, where the flow is calmed so that the abrasion can be deposited in the abrasion collecting container, whereby a filter can also be used to separate the abrasion.

EP 1 942 287 A1 discloses a vehicle debris collecting device having a suction device by means of which debris from a brake is sucked through a filter. The suction device has a flow channel through which the airstream flows as a result of the movement of the vehicle and has a funnel-shaped taper. In the area of the taper, a suction channel opens into the flow channel, through which the air is extracted with the abrasion of the brake via the filter. Here the generation of the suction is based on the Venturi effect using the airflow. A throttle can be arranged in the flow channel to influence the suction pressure. The air movement can also be supported by a fan wheel rotating with the rim.

WO 2008/049829 suggests the multifunctional use of a filter element both for separating abrasion in an exhaust air flow from a brake and for filtering exhaust gas.

DE 10 2012 016 834 A1 proposes to close an opening of a rim with a brake arranged in the rim into the surroundings by means of a filter element, so that abrasion of the brake cannot escape into the surroundings.

DE 10 2012 016 835 A1 proposes a filter element for filtering air containing abrasion from a brake, which is a shaped filter and has filter areas of different porosities.

DE 10 2008 029 504 B4 discloses a vehicle abrasion collecting device in which the vehicle abrasion collecting device is operated only temporarily during an ABS operation of the brake (and possibly also for a predetermined period of time afterwards). The moisture in the abrasion is recorded by a moisture sensor. The vehicle abrasion collecting device can be deactivated when the humidity sensor detects that the brake dust exceeds a predetermined humidity value.

DE 10 2005 047 351 A1 suggests providing a heater in the vehicle debris collecting device in order to burn off collected debris. The heating can then be activated at predetermined time intervals or activated when the vehicle is parked.

The non-generic publication EP 3 144 528 B1 suggests the use of a brake dust collecting device in the area of a brake of a wind turbine.

Further information on collecting abrasion in the form of brake dust can be found on the website https://www.mann-hummel.com/en/the-company/current-topics/press-releases/ mann-hummel-successfully-tests-brake -dust-particle-filter and the website https: //www.tallano. eu / en (see here in particular the video).

Further prior art can be found in the publications in particular DE 20 2005 017 472 U1 , WO 2017/097901 A1 , WO 2008/083884 A1 , DE 10 2012 016 836 A1 and DE 10 2009 021 203 A1 known.

OBJECT OF THE INVENTION

• - einer Trennung des Feinstaubs von einer Komponente und/oder der Fahrbahn und/oder
• - einer Abdichtung und/oder Kapselung des Bereichs, in welchem Feinstaub entstehen kann und/oder
• - einer Reduzierung von Kontaktbereichen der Fahrzeug-Feinstaubsammeleinrichtung mit den Bauelementen des Fahrzeugs und/oder
• - einer Anpassung des Betriebs der Fahrzeug-Feinstaubsammeleinrichtung an verschiedene Betriebsbedingungen des Fahrzeugs und/oder
• - einer Entstehung eines Druckgefälles für eine Förderung von Feinstaub in der Fahrzeug-Feinstaubsammeleinrichtung und/oder
• - einer Integration der Fahrzeug-Feinstaubsammeleinrichtung in das Fahrzeug

verbessert ist. Des Weiteren liegt der Erfindung die Aufgabe zugrunde, ein entsprechend verbessertes Fahrzeug mit einer Fahrzeug-Feinstaubsammeleinrichtung vorzuschlagen.The invention is based on the object of proposing a vehicle fine dust collection device that, in particular with regard to

• - A separation of the fine dust from a component and / or the roadway and / or
• - a sealing and / or encapsulation of the area in which fine dust can arise and / or
• - A reduction in contact areas of the vehicle fine dust collection device with the components of the vehicle and / or
• - An adaptation of the operation of the vehicle fine dust collection device to different operating conditions of the vehicle and / or
• - the creation of a pressure gradient for the promotion of fine dust in the vehicle fine dust collection device and / or
• - An integration of the vehicle fine dust collection device in the vehicle

is improved. Furthermore, the invention is based on the object of proposing a correspondingly improved vehicle with a vehicle fine dust collection device.

SOLUTION

The object of the invention is achieved according to the invention with the features of the independent patent claims. Further preferred embodiments according to the invention can be found in the dependent claims.

DESCRIPTION OF THE INVENTION

The invention relates to a vehicle fine dust collecting device which is used for separating, sucking in and / or collecting fine dust. According to the invention, the vehicle fine dust collection device has a suction device. There is a vacuum unit in the suction device. The vacuum unit provides a suction pressure via a suction channel, which is used to separate the fine dust from a component of the vehicle, to suck in the fine dust, to convey a stream with fine dust and / or to collect the fine dust, for example in the area of a filter and / or a collecting container can be.

The invention is based on the knowledge that in suction devices known from the prior art, a conveying movement and a suction pressure is generated via an active negative pressure unit, in which electrical energy is converted into a flow movement and a pressure difference via a motor, a pump or a fan wheel is produced. Such negative pressure units increase the energy requirement and under certain circumstances require a large amount of space. On the other hand, passive units for generating a flow movement are also known from the prior art, in which a suction pressure is generated in a suction channel by utilizing the Venturi effect in the area of a throttling of a flow. The flow used for the Venturi effect is according to DE 10 2007 009 744 A1 the flow of exhaust gas in an exhaust system. However, uses the in EP 1 942 287 A1 Venturi effect used the airflow as a result of the movement of the vehicle, whereby it is also addressed here that a flow movement can be supported by the rotation of a fan wheel, which is driven by the rim rotating when driving.

• Bei dem bewegten Fahrzeugteil kann es sich beispielsweise um eine Felge, insbesondere ein Felgenbett der Felge, handeln, während der Strömungskanalkörper im Inneren der Felge und innenliegend von der Innenfläche des Felgenbetts angeordnet sein kann. In diesem Fall wird der Strömungskanal somit zwischen der Innenfläche des Felgenbetts und einer zugewandten Außenfläche des Strömungskanalkörpers gebildet. Der Strömungskanalkörper kann dabei an dem Chassis, einem Radträger, einem Achskörper u. ä. gehalten sein, so dass mit dem Abrollen des Fahrzeugrads auf der Fahrbahn die Felge bzw. das Felgenbett relativ zu dem Strömungskanalkörper bewegt wird.

The Venturi effect is also used according to the invention. However, according to the invention, the airflow or the flow of an exhaust gas is not used for the Venturi effect. Rather, according to the invention, the vacuum unit has a flow channel. The flow channel is delimited on the one hand by a flow channel body and on the other hand by a vehicle part, the vehicle part being moved relative to the flow channel body. This is to be explained in the following on the basis of the following example, without the intention of restricting the invention to this example:

• The moving vehicle part can be, for example, a rim, in particular a rim base of the rim, while the flow channel body can be arranged in the interior of the rim and on the inside of the inner surface of the rim base. In this case, the flow channel is thus formed between the inner surface of the rim well and a facing outer surface of the flow channel body. The flow channel body can be held on the chassis, a wheel carrier, an axle body and the like, so that when the vehicle wheel rolls on the roadway, the rim or the rim base is moved relative to the flow channel body.

As a result of a movement of the vehicle part, ie for the example mentioned as a result of the rotation of the rim, a boundary layer forms on the vehicle part or the inner surface of the rim, in which fine dust can be contained. The fine dust can be, for example, dust from the environment, dust from a combustion process of the internal combustion engine, abrasion from tires and / or abrasion from the brake arranged in the rim. With the movement of the vehicle part or the rim, the boundary layer is then transported into the flow channel. According to the invention, the flow channel has a constriction in which the flow of the boundary layer is accelerated and the pressure is reduced. To generate the suction pressure, the suction channel can open into this constriction. According to the invention it is thus possible that it is not the head wind that has to be used for the Venturi effect, but rather a boundary layer of a vehicle part that is moved relative to the chassis. It is thus unnecessary that the airflow has to be fed through openings in the body of the vehicle fine dust collecting device and / or the airflow has to flow through the interior of the vehicle over possibly longer distances. The use according to the invention of a moving vehicle part also enables an expansion of the locations at which suction pressure can be made available by means of the Venturi effect. For the example mentioned, this means that the suction device and its vacuum unit can be integrated into the rim, which is particularly advantageous if the suction pressure is then used to also collect fine dust inside the rim, for example from one located inside the rim Brake.

The pressure-generating constriction is fluidically connected via the suction channel (possibly with the interposition of a filter and / or a collecting container) to the point at which the fine dust is to be sucked in. The suction channel (also) preferably extends through the flow channel body.

The effect of pressure generation and also the suction and delivery volume of the vacuum unit according to the invention can be increased if the flow channel has a greater transverse extent, wherein for the example mentioned the flow channel can extend over the entire width of the rim well. If the suction channel only opens into the constriction with a bore, the diameter of which corresponds to the diameter of the suction channel, the possible transverse extension of the flow channel is not used and, under certain circumstances, only a limited suction volume flow arises. For a proposal of the invention, an opening of the suction channel into the constriction of the flow channel has a funnel-like suction area, wherein the suction area can have a funnel-like contour in the direction of the transverse extent and / or also an enlarged extent or a funnel-like contour in the flow direction of the flow duct.

The vehicle fine dust collection device according to the invention can be intended for the collection of fine dust that has been caused by a moving component or is deposited on it, and / or of fine dust that has deposited on a roadway. To name just a few non-limiting examples of the design of the suction device, the suction device can have a fine dust collection container in which the fine dust can be collected, the fine dust collection container being fixed for the life of the vehicle or a component of the vehicle , on which the vehicle fine dust collecting device is arranged, can be built in or can be exchanged or emptied regularly by the driver or at intervals in a workshop. It is also possible that the suction device has a filter on which the fine dust is deposited, the filter then preferably likewise can be changed at regular intervals by a driver or in a workshop. The other embodiments of a suction or collecting device known from the prior art cited at the beginning, such as collecting the fine dust by means of an electrostatic or electromagnetic field, can also be used cumulatively in the vehicle fine dust collecting device according to the invention.

Another embodiment of the invention is based on the consideration that in order to collect the fine dust, the fine dust must first be separated directly from a roadway or a component of the vehicle that is assigned to the vehicle fine dust collecting device or is moved relative to it, which is also possible is that the fine dust is arranged in a fluidic boundary layer of this component, with which this boundary layer must then be separated from the component. The embodiments of the prior art initially assume that in order to separate the fine dust or the boundary layer it is sufficient to suck off the fine dust or the boundary layer from the component by means of a suction device with sufficient suction power. If the pure suction power is not regarded as sufficient, mechanical scrapers are used as separating devices according to the state of the art, which are pressed against the components of the vehicle and thus mechanically ensure separation.

For a proposal of the invention, an alternative (or also cumulative) configuration of the separating device is proposed in that a fluidic separating device is used. A directed fluid flow is generated in the fluidic separation device. The directed fluid flow is directed towards the component or the roadway on which fine dust has deposited. The impinging fluid flow loosens the fine dust from the component or roadway, with which the fine dust can then be processed by further components of the vehicle fine dust collecting device. Alternatively or cumulatively, it is possible for the directed fluid flow of the fluidic separation device to detach a boundary layer of the component or roadway, which contains fine dust, from the component or roadway. In this case, the directed fluid flow can, under certain circumstances, also serve as a guide along which the fine dust or the boundary layer containing the fine dust is guided (for example during suction).

The fine dust can be any abrasion (for example from contact surfaces of two clutch halves, contact surfaces of a brake or contact surfaces between a tire of the vehicle and a roadway) and / or dust or particles from the environment or from the combustion process of the internal combustion engine. The particles of the fine dust can also have any size or size distribution. The fine dust is preferably fine dust of particle size PM 10 or PM 2.5.

It is possible for the component that is moved relative to the vehicle fine dust collection device to be a vehicle part that is moved relative to a chassis of the vehicle. To name a few examples in this regard, the component moved relative to the fine dust collection device can be a brake disc and / or a brake lining, in which case the vehicle fine dust collection device can be moved with the brake lining, can be held by a brake caliper or can be held on a wheel carrier can be. This may require that the vehicle fine dust collecting device can execute a compensating movement in order to be able to execute a relative movement between the component that generates or has the fine dust and the component on which the vehicle fine dust collecting device is held. If components of the vehicle fine dust collection device are moved relative to one another, ducts, fluidic or electrical lines can also be designed to carry out corresponding relative movements. For example, a suction line can have a rotary leadthrough or a fluidic or electrical line can be designed to be flexible.

For the moving component there are various possibilities within the scope of the invention. It is possible that the moving component is a vehicle part that moves in a straight line or a rotating vehicle part.

For one proposal of the invention, a brake has the moving component. In this case, the fine dust has abrasion from a brake lining (possibly moving in a straight line) and / or a rotating brake disk of the brake.

For a further proposal, the moving component that causes the fine dust can be a vehicle wheel. In this case, the fine dust has abrasion or fine dust from the tire and / or the roadway.

To name a further possible application example of a vehicle fine dust collection device according to the invention, the rotating component can be a clutch, in which case the fine dust can be abrasion of a clutch body and in particular of the clutch halves.

In principle, it is possible for only one separating device to be present in a vehicle fine dust collection device according to the invention. However, it is also possible for at least two fluidic separation devices to be present. In this case, a first fluidic separation device can be aligned with a rotating vehicle wheel. This first fluidic separation device then serves to separate fine dust from the rotating vehicle wheel and / or to detach a boundary layer, which contains fine dust, from the rotating vehicle wheel. In contrast, the second fluidic separation device is aligned with the roadway. The second fluidic separation device serves to separate the fine dust from the roadway and / or to detach a boundary layer of the roadway from the roadway. Here, the boundary layer of the roadway is understood to mean the area surrounding the roadway in which the speed of the air above the roadway increases from zero in the direct contact area with the roadway to the speed of the flow in the trailing area of the tire. The vehicle fine dust collection device according to the invention can thus be multifunctional, since it can collect both fine dust on a tire of the vehicle wheel and fine dust on the roadway or in a boundary layer of the roadway. It is possible for a possible embodiment that the fine dust thus loosened from the vehicle wheel and the roadway is conveyed or sucked in in a flow channel that is limited on both sides by the directed fluid flows of the first and second fluidic separating device.

If it is to be avoided that, despite the use of the separating device and the suction or collecting device in the vehicle fine dust collecting device, part of the fine dust undesirably escapes into the environment, a cover hood can also be used in the vehicle fine dust collecting device according to the invention. The covering hood interacts with the moving component, for example the brake disc or the brake lining, a clutch half or the vehicle wheel, which interaction can be contactless or can be based on a pressure with the creation of a sealing contact. It is also possible that a self-adjusting grinding seal is used, which is pressed against the moving component and is ground down by the moving component until there is a minimal gap between the cover and the component, which largely avoids the escape of fine dust. If the vehicle fine dust collection device is moved with a brake lining, the self-adjusting grinding seal can be further sanded off with increasing wear of the brake lining and thus increasing stroke of the brake lining and also increasing stroke of the vehicle fine dust collecting device.

The vehicle fine dust collection device can have a holding area via which the vehicle fine dust collection device can be held on a vehicle. This can be a retaining flange, for example. It is possible here for the vehicle fine dust collection device to be held firmly to an assigned component of the vehicle via the holding area. For a further proposal of the invention, however, the position and / or alignment of the at least one separating device and / or the suction device with respect to the holding area can be changed. On the one hand, this can be used for an exact setting, for example an exact alignment of the directed fluid flow of the separating device with the assembly of the vehicle fine dust collecting device. It is also possible that the position and / or alignment of the separating device and / or suction device with respect to the holding area automatically adapts to the operation of the vehicle. For example, a degree of freedom between the separating device and / or the suction device can ensure a compensating movement in the event of a deflection of a vehicle wheel, an actuation of a brake lining, a steering angle, a movement of a clutch half.

It is also possible that the position and / or alignment of the at least one separating device, the suction device and / or the covering hood with respect to the holding area can be changed via an actuator. For example, an actuator can be used for readjustment. It is also possible for the separating device, the suction device and / or the cover hood to be transferred from an active position to an inactive position (and vice versa) via the actuator if the vehicle fine dust collection device is only to be operated temporarily.

While any suction device can be used in the vehicle fine dust collection device, it preferably has a suction device in which the fine dust is passed through a filter together with a fluid flow and / or is fed to a collecting container in which fine dust can be deposited, whereby also the use of a cyclone to separate fine dust is possible.

A further solution to the object on which the invention is based is given by a vehicle which has at least one vehicle fine dust collection device, as has been explained above.

Advantageous developments of the invention emerge from the patent claims, the description and the drawings.

The advantages of features and of combinations of several features mentioned in the description are only exemplary and can come into effect alternatively or cumulatively without the advantages necessarily having to be achieved by embodiments according to the invention.

With regard to the disclosure content - not the scope of protection - of the original application documents and the patent, the following applies: Further features can be found in the drawings - in particular the illustrated geometries and the relative dimensions of several components to one another and their relative arrangement and operative connection. The combination of features of different embodiments of the invention or of features of different patent claims is also possible in a way deviating from the selected back-references of the patent claims and is hereby suggested. This also applies to features that are shown in separate drawings or mentioned in their description. These features can also be combined with features of different patent claims. Features listed in the claims can also be omitted for further embodiments of the invention, but this does not apply to the independent claims of the granted patent.

The number of features mentioned in the claims and the description are to be understood in such a way that precisely this number or a greater number than the specified number is present without the explicit use of the adverb “at least” being required. For example, when an element is mentioned, it is to be understood that there is exactly one element, two elements or more elements. These characteristics can be supplemented by other characteristics or be the only characteristics that make up the product in question.

The reference signs contained in the claims do not restrict the scope of the subject matter protected by the claims. They only serve the purpose of making the claims easier to understand.

Figure list

• 1 zeigt stark schematisch eine Absaug-Feinstaubsammeleinrichtung für ein Sammeln von Abrieb einer Scheibenbremse.
• 2 zeigt stark schematisch eine alternative Fahrzeug-Feinstaubsammeleinrichtung für das Sammeln von Abrieb einer Scheibenbremse.
• 3 zeigt stark schematisch eine alternative Fahrzeug-Feinstaubsammeleinrichtung für das Sammeln von Abrieb einer Scheibenbremse.
• 4 zeigt stark schematisch den Aufbau einer Fahrzeug-Feinstaubsammeleinrichtung einer Scheibenbremse gemäß 1.
• 5 zeigt schematisch eine Fahrzeug-Feinstaubsammeleinrichtung für ein Sammeln von Feinstaub im Bereich eines Reifens und einer Fahrbahn.
• 6 zeigt eine alternative Fahrzeug-Feinstaubsammeleinrichtung für das Sammeln von Feinstaub im Bereich eines Reifens und einer Fahrbahn, wobei hier eine Saugeinrichtung und Trenneinrichtung der Fahrzeug-Feinstaubsammeleinrichtung verschwenkbar ist.
• 7 zeigt schematisch Bauelemente einer Fahrzeug-Feinstaubsammeleinrichtung und deren Zusammenwirken.
• 8 zeigt schematisch eine Saugeinrichtung im Bereich einer Felge.
• 9 zeigt einen Schnitt IX-IX der Saugeinrichtung gemäß 8.

In the following, the invention is further explained and described with reference to preferred exemplary embodiments shown in the figures.

• 1 shows highly schematically a suction fine dust collection device for collecting abrasion from a disc brake.
• 2 shows, highly schematically, an alternative vehicle fine dust collection device for collecting abrasion from a disc brake.
• 3rd shows, highly schematically, an alternative vehicle fine dust collection device for collecting abrasion from a disc brake.
• 4th shows the structure of a vehicle fine dust collection device of a disc brake according to FIG 1 .
• 5 shows schematically a vehicle fine dust collection device for collecting fine dust in the area of a tire and a roadway.
• 6th shows an alternative vehicle fine dust collecting device for collecting fine dust in the area of a tire and a roadway, a suction device and separating device of the vehicle fine dust collecting device being pivotable here.
• 7th shows schematically components of a vehicle fine dust collection device and their interaction.
• 8th shows schematically a suction device in the area of a rim.
• 9 shows a section IX-IX of the suction device according to 8th .

FIGURE DESCRIPTION

In the present description of the figures, components that correspond or resemble one another in terms of geometry and / or are partially identified with the same reference numbers, whereby these can then be differentiated by means of the supplementary letters a, b, .... These components are then referred to in the description of the figures and in the patent claims in some cases without the supplementary letter, which is then intended to refer to a single component of this type, several components of this type or all components with these reference numbers.

1 shows the use of a vehicle fine dust collector 1 for a brake 2 that here as a disc brake 3rd is trained. The disc brake 3rd has a rotating brake disc 4th , a caliper 5 and brake pads 6th that are on either side of the brake disc 4th are arranged and via a brake actuator 7th as needed to generate a braking force on the brake disc 4th can be pressed.

The vehicle fine dust collection device 1 has a vehicle fine dust collection unit 8th regarding the direction of rotation of the brake disc 4th behind the caliper 5 and the brake lining 6th is arranged and at least in the radial section of the brake disc 4th extends in which the brake lining 6th with the brake disc 4th comes into contact. For the illustrated embodiment, the vehicle fine dust collection unit engages around 8th U-shaped the brake disc 4th from the outside so that these are on both sides of the brake disc 4th is arranged and around the outer edge of the brake disc 4th extends around.

The vehicle fine dust collection device 1 also has one with a cover 9 formed encapsulation 10 . In the cover 9 are the caliper 5 , the brake pad 6th and the brake actuator 7th on the one hand and the vehicle fine dust collection unit 8th arranged on the other hand. The cover hood 9 ensures complete or partial sealing of the vehicle fine dust collection unit 8th and the one in the cover 9 recorded components of the brake 2 opposite the brake disc 4th . The seal leads to a reduction in the escape of fine dust or abrasion from the brake 2 in the nearby areas.

For bringing about the sealing effect of the cover hood 9 there are many options. For a first embodiment, the cover hood 9 so designed and relative to the brake disc 4th arranged that is between the cover 9 and the brake disc 4th results in a minimal air gap. It is also possible that the cover 9 in the entire edge area or large parts of the same to the brake disc 4th is pressed in the original state and the cover 9 comprises a material or is coated with a “sacrificial material” in the edge area, so that material of the cover hood is running in 9 from the brake disc 4th Is "sanded off", which then creates a very narrow gap between the cover 9 and brake disc 4th forms. But it is also possible that the edge of the cover 9 via scrapers 11 which are wear-resistant and heat-resistant and with which the cover hood 9 permanently on the brake disc 4th is pressed. Finally, it is possible that the cover 9 or scraper 11 only temporarily to the brake disc 4th be pressed when the vehicle fine dust collection device 1 is activated. Here, a wiper 11b can be placed on the radially inner edge of the cover hood 9 , wipers 11a, 11c in the direction of rotation of the brake disc 4th front and / or rear edge of the cover 9 be arranged and / or scrapers 11d, 11e between the outer surface of the brake disc 4th and the cover 9 Act.

2 shows an embodiment in which the vehicle particulate matter collecting device 1 in the caliper 5 the disc brake 3rd is integrated. The vehicle fine dust collection device 1 (and the cover 9 same) only takes the brake pad in this case 6th and the brake actuator 7th on.

It is possible here that the cover hood 9 with the other components of the vehicle fine dust collection unit 8th firmly on the caliper 5 is held. The vehicle fine dust collection unit is another embodiment 8th firmly on the caliper 5 held while the cover 9 relative to the vehicle particulate matter collection unit 8th is movable, the movement, for example, together with the brake lining 6th can be done so that the cover 9 on the brake pad 6th or the brake actuator 7th is held. This brings the cover hood 9 only with the actuation of the brake lining 6th by the brake actuator 7th to the effect.

For the in 3rd The illustrated embodiment is the vehicle fine dust collection device 1 separate from the caliper 5 , the brake pad 6th and the brake actuator 7th designed and spaced as slightly as possible from these components of the disc brake 3rd in the direction of rotation of the brake disc 4th behind these components of the disc brake 3rd arranged.

4th shows a highly schematic section IV-IV through a vehicle fine dust collection device 1 , here as an example for use in a configuration with a disc brake 3rd according to 1 . Corresponding configurations are, however, also for any other configurations, for example according to FIG 2 and 3rd , possible.

As a result of the rotation of the brake disc 4th the brake disc 4th there is a boundary layer at this 12th . In 4th the flow conditions are shown without the brake lining 6th to the brake disc 4th is pressed. A corresponding boundary layer 12th but also results when the brake lining 6th to generate the braking force on the brake disc 4th is pressed.

The vehicle fine dust collection device 1 has the following components:

The vehicle fine dust collection device 1 has an inlet guide 13th on over which the boundary layer 12th , in what fine dust or abrasion from the brake disc 4th and / or from the brake lining 6th is included, a suction channel 14th is fed. The inlet guide 13th can also be used as the brake pad 6th subsequent air baffle be formed.

The suction channel 14th is to a suction device 15th connected. In the suction device 15th a negative pressure is created to reduce the flow of the boundary layer 12th with the fine dust through the suction channel 14th evoke or promote. Furthermore, in the suction device 15th a filter 16 which is the air of the boundary layer 12th lets through, but the fine dust from the air of the boundary layer 12th removed, and / or a collection container 17th , in which separated fine dust can be collected, be integrated. The air of the boundary layer purified in this way 12th can then be discharged again in any way, whereby it is also entirely possible that this is fed to an exhaust line in accordance with the prior art mentioned at the beginning, which can also cause the suction effect, or this is discharged into the environment.

The vehicle fine dust collection unit 8th via a separator 18th . To the separator 18th is an outflow channel 19th connected. The separator 18th generates a conveying movement and / or a pressure gradient in such a way that the outflow channel 19th is traversed by air. The outflow channel 19th is so on the brake disc 4th aligned that of the outflow channel 19th escaping air flow onto the brake disc 4th hits and in a separation area 20th the boundary layer 12th from the brake disc 4th peeled off, leaving the boundary layer 12th largely or completely in the suction channel 14th can occur. For this purpose is the outflow channel 19th in the area of an outflow outlet 21 oriented so that the one from the outflow outlet 21 exiting air flow has a flow component that is opposite to the direction of movement of the brake disc 4th is oriented. Here is the outflow outlet 21 oriented so that the outflowing airflow is at an angle 22nd opposite the brake disc 4th which can be, for example, in the range from 3 ° to 45 °, for example 5 ° to 40 ° or 10 ° to 35 °.

In the separator 18th the conveyance of the air can be caused by a fan or propeller or a compressor. It is also possible that in the separating device 18th which the suction channel 14th and the suction device 15th The air flowing through is used after the fine dust has been removed.

It is possible that according to 4th the inlet guide 13th for the boundary layer 12th directly to the brake pad 6th adjoins, with also between the inlet guide 13th and the brake lining 6th a sealing and / or guide device 23 may be present.

5 shows the use of a vehicle particulate matter collection device 1 in the area of one on a roadway 24 rolling vehicle wheel 25th with a tire 26th . In this case, the vehicle fine dust collection device does not have a cover 9 and an encapsulation 10 . There are two separation devices in the vehicle particulate matter collection device 1 present, namely a first separating device 27 and a second separator 28 with assigned outflow channels 29 , 30th and outflows 31 , 32 . The outflow outlet 31 the first separator 27 is on the surface of the tire 26th aligned, in particular with a flow component of the outflowing air opposite to the direction of movement of the lateral surface of the tire 26th and / or at an acute angle with respect to the circumferential direction of the tire 26th . On the other hand, the outflow outlet is 32 the second separator 28 onto the roadway 24 , in particular also at an acute angle and with a flow component in the direction of travel. The one from the outflow mouth 32 escaping flow loosens the boundary layer 33 (with the fine dust it contains) from the tire 26th from. The one from the outflow mouth 32 escaping air hits the boundary layer of the roadway 24 and removes air and fine dust (possibly including dust) from the road 24 from. The boundary layer detached in this way 33 can between those from the outflows 31 , 32 escaping air currents are guided and enters the suction channel 14th the suction device 15th .

It is possible that the vehicle fine dust collection device 1 in a wheel arch and / or on a chassis of a vehicle 53 is held. It is also possible that the vehicle fine dust collection device 1 on an axle beam of the vehicle 53 is held so that the vehicle fine dust collector 1 together with a deflection of the vehicle wheel 25th emotional.

• - zum Ausgleich einer Einfederungs-Bewegung verwendet werden,
• - bei der Montage der Ausrichtung der Fahrzeug-Feinstaubsammeleinrichtung 1 dienen,
• - benutzt werden, um die Fahrzeug-Feinstaubsammeleinrichtung 1 zwischen einer aktiven und nicht aktiven Stellung (und umgekehrt) zu bewegen und/oder
• - benutzt werden, um bedarfsgerecht die Position und/oder Ausrichtung der Fahrzeug-Feinstaubsammeleinrichtung 1 in unterschiedliche Betriebsstellungen zu bringen.

6th Fig. 10 shows an embodiment in which the vehicle particulate matter collecting device 1 about a guided tour 34 movable on the vehicle 53 is held. For the illustrated embodiment, the guide is 34 as a swivel bearing 35 educated. The movement along the guide 34 can

• - used to compensate for a compression movement,
• - When installing the alignment of the vehicle fine dust collection device 1 serve,
• - used to collect the vehicle's particulate matter 1 to move between an active and inactive position (and vice versa) and / or
• - Can be used to adjust the position and / or alignment of the vehicle's fine dust collection device as required 1 to bring into different operating positions.

If, for example, according to the prior art, a measuring device is used to measure the composition, the extent or the distribution of the fine dust, the vehicle fine dust collecting device can be adjusted depending on the measurement result 1 along the guide 24 respectively. It is also entirely possible that a movement along the guide 34 by means of an electronically controlled or regulated actuator 36 can be done.

7th shows, in a highly schematic manner, an embodiment of a vehicle fine dust collection device 1 . The vehicle fine dust collection device 1 has an (external or here internal) electronic control unit 37 . The control unit 37 controls the suction device 15th to activate, control or regulate the required negative pressure and the suction effect of the same. The control unit also controls 37 the separator 18th to activate them or the flow rate of the separating device in the outflow channel 19th to control or regulate. It is optionally possible that the control unit 37 the actuator 36 drives. The separator 18th generated in the outflow channel 19th and the outflow mouth 21 an exiting air stream 38 that is on a component 39 hits to fine dust or abrasion from the component 39 peel off or a boundary layer of the component 39 to be detached from this. The suction device 15th creates a suctioned air stream 40 through the suction channel 14th and if necessary a filter 16 . With the extracted air stream 18th it is preferably a stream of air with particles on the component 39 have deposited, or a boundary layer 12th the component 39 with fine dust contained therein, the fine dust or the boundary layer 12th with the airflow 38 may have been replaced. For the embodiments according to 1 to 6th is the component 39 around the brake disc 4th , the tire 26th and / or the roadway 24 .

8th and 9 show a possibility for generating the suction in the suction device 15th . The suction device 15th is here in a rim 41 of the vehicle wheel 25th integrated. The rim has a rim well 42 with a cylindrical inner surface 43 . However, it is also entirely possible that such an inner surface 43 is formed by any other body which is connected to the vehicle wheel 25th rotates. Closely adjacent to the inner surface 43 is a flow channel body 44 arranged which is not with the rim 41 rotates so that the rim base 42 , which is a moving vehicle part 54 forms, and the inner surface 43 a relative movement with respect to the flow channel body 44 To run. On the rotating inner surface 43 the rim 41 a moving boundary layer forms 45 out. Between that of the inner surface 43 the rim 41 and that of the inner surface 43 facing outer surface 46 of the flow channel body 44 is a flow channel 47 educated. The flow channel 47 tapers (here continuously) in the direction of the movement of the inner surface 43 and thus the flow in the boundary layer 45 . The flow channel 47 has a bottleneck 48 . As a result of the tapering of the flow channel 47 up to the bottleneck 48 becomes the flow in the flow channel 47 accelerates, which has the consequence that the pressure at the constriction 48 is reduced. Into the bottleneck 49 the suction channel opens 14th the suction device 15th . A stream of air 40 the suction device 15th after the fine dust has been removed in this via the suction channel 14th the boundary layer 45 the inner surface 43 fed and occurs in an exit area 49 with the boundary layer 45 from the vacuum unit 50 out.

As in section IX-IX according to 9 can be seen, has the flow channel body 40 over a large extent in the direction of the rim bed 42 , where in this section the suction channel 14th a funnel-like suction area 51 may have. It is possible that the flow channel body is in the axial edge region 44 a minimal gap to the inner surface 43 forms or via a sealing element opposite the inner surface 43 is sealed.

The vehicle fine dust collection device 1 is about a holding area 52 on the vehicle 53 held.

One component 39 on which fine dust is deposited or a boundary layer containing fine dust is formed, a brake lining can be used 6th , a brake disc 4th , a tire 26th and the like.

It is possible that via the actuator 36 the vehicle particulate matter collection device 1 is transferred to an ineffective operating position if, for example, no fine dust is generated during rain or if it does not get into the ambient air but is deposited on the ground or in some other way. It is also possible to deactivate the vehicle fine dust collection device 1 at low speeds, in city traffic and / or when driving over a curb to avoid a collision with it. Criteria for activating and deactivating the vehicle particulate matter collection device 1 can be, for example, a recognition of a motorway trip, for which the vehicle fine dust collection device 1 is activated, or a recognized geodetic location, whereby, for example, activation can take place in city traffic or cannot take place at the moment. It is also possible for a clean road or a dirty road to be recognized via a measuring device or optical detection device. It is also possible that the vehicle fine dust collection device 1 is activated when a speed threshold is exceeded.

It is possible that there is no collection of the fine dust, but only a separating device ( 18th ) in a vehicle particulate matter separation device 55 is used.

The airflow of the separator 18th can be generated by means of a dynamic pressure as a result of the movement of a vehicle part or of the vehicle, for example by using a dynamic nozzle or pitot nozzle.

An encapsulation is preferred 10 or cover 9 rigidly on the caliper 5 held and covers all brake pads of the brake calliper.

Under certain circumstances, the cover hood is sealed 9 or encapsulation 10 radial to the brake disc (radially inward and / or radially outward) of particular importance.

The vehicle particulate matter collection device is preferred 1 and are the separators 18th and the suction device 15th the same passively designed, so that for the generation of the air currents 38 , 40 no energy supply is required, but the energy of the airstream, the vehicle and / or a moving part of the vehicle is used.

In contrast to the in 9 embodiment shown can also be across the width of the rim 41 several suction areas 51 or suction channels 14th be distributed. About the choice of the diameter of the suction channel 14th in the area of the bottleneck 48 , the design of the suction area 51 , the extension of the bottleneck 48 , the contouring of the flow channel 47 and the cross-section in the area of the constriction 48 the suction power and suction pressure can be adjusted. The flow channel body can increase the pressure difference 44 also extend to the inner rim shoulder and be angled beyond this and to the outside in the direction of the vehicle wheel 25th to grab.

The vehicle fine dust collecting device according to the invention 1 can be used in conjunction with a floating brake caliper or a fixed caliper.

Compared to solutions in which suction already takes place via grooves or channels in the brake lining from the vanishing gap between the brake lining and the brake disc, the boundary layer and the fine dust are preferably suctioned downstream of the brake linings according to the invention. This refinement is based on the knowledge that the pressure in the vanishing gap between the brake lining and the brake disc is reduced, so that suction in this area requires the generation of a very low pressure. If, on the other hand, the brake layer is already relaxed downstream of the brake lining, reliable suction can be ensured even with a higher pressure.

The encapsulation is preferred 10 or cover 9 at least in the contact or surrounding area of the moving component 39 thickened in order to ensure a large contact surface or a large extension of a resulting gap.

The cover hood 9 or the encapsulation 10 can include individual brake pads or all brake pads.

It is possible that a brake cylinder or drive element through the cover 9 or encapsulation 10 is passed through, then between the brake cylinder or drive element and cover 9 or encapsulation 10 a rubber seal can be used.

The suction area and the blow-in area of the suction device 15th and the separator 18th are preferably closely spaced in the direction of rotation of the brake disc 4th behind the brake pad 6th or the brake caliper 5 arranged. If the cover is not adequately sealed 9 or encapsulation 10 , can be a suction device 15th do not generate the required pressure difference as a result of the resulting leakage flow.

Preferably, the suction rate of the suction device 15th Controlled depending on the speed. There are separate vehicle particulate matter collection devices on both sides of the brake disc 1 and associated covers 9 or encapsulations 10 Use, a flow through the brake disc can continue to take place with an internally ventilated brake disc, so that the cooling of the brake disc is not impaired.

For the in 9 The embodiment shown is the inner surface 43 cylindrically designed so that a straight inner contour of the rim well in the half longitudinal section 42 results. It is also possible for the inner contour to have any non-straight, for example, curved or wavy inner contour. In this case, the suction channel follows 14th the inner contour, but also then the suction area 51 a kind of funnel opposite the curved inner contour with a towards the suction channel 14th can form increasing gap height.

List of reference symbols

1

Vehicle fine dust collection device

2

brake

3

Disc brake

4th

Brake disc

5

Caliper

6th

Brake pad

7th

Brake actuator

8th

Vehicle fine dust collection unit

9

Cover hood

10

Encapsulation

11

Scraper

12th

Boundary layer

13th

Inlet guide

14th

Suction channel

15th

Suction device

16

filter

17th

Collection container

18th

Separator

19th

Outlet duct

20th

Separation area

21

Outflow

22nd

angle

23

Sealing and / or guide device

24

roadway

25th

Vehicle wheel

26th

tires

27

Separator

28

Separator

29

Outlet duct

30th

Outlet duct

31

Outflow

32

Outflow

33

Boundary layer

34

guide

35

Swivel bearing

36

Actuator

37

Control unit

38

Airflow

39

component

40

Airflow

41

rim

42

Rim base

43

Inner surface

44

Flow channel body

45

Boundary layer

46

Exterior surface

47

Flow channel

48

Bottleneck

49

Exit area

50

Vacuum unit

51

Suction area

52

Holding area

53

vehicle

54

Vehicle part

55

Vehicle fine dust separation device

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102007009744 A1 [0003, 0024]
• DE 4240873 C2 [0004]
• DE 60224858 T2 [0005]
• DE 202005009278 U1 [0006]
• DE 102016224432 A1 [0007]
• DE 102017200941 B4 [0008]
• DE 102017201736 A1 [0009]
• DE 102010053879 A1 [0010]
• EP 2102522 B1 [0011]
• EP 1942287 A1 [0012, 0024]
• WO 2008/049829 [0013]
• DE 102012016834 A1 [0014]
• DE 102012016835 A1 [0015]
• DE 102008029504 B4 [0016]
• DE 102005047351 A1 [0017]
• EP 3144528 B1 [0018]
• DE 202005017472 U1 [0020]
• WO 2017/097901 A1 [0020]
• WO 2008/083884 A1 [0020]
• DE 102012016836 A1 [0020]
• DE 102009021203 A1 [0020]

Claims (16)

Vehicle fine dust collection device (1) for separating, sucking in and / or collecting fine dust with a suction device (15) in which a suction pressure is made available by a vacuum unit (50) via a suction channel (14), characterized in that a) the vacuum unit (50) has a flow channel (47) which is delimited on the one hand by a flow channel body (44) and on the other hand by a vehicle part (54) which is moved relative to the flow channel body (44), b) as a result of a movement of the vehicle part ( 54) a boundary layer (45) is transported into the flow channel (47), c) the flow channel (47) has a constriction (48) and d) the suction channel (14) opens into the constriction (48). Vehicle fine dust collection device (1) according to Claim 1 , characterized in that the suction channel (14) extends through the flow channel body (44). Vehicle fine dust collection device (1) according to Claim 1 or 2 , characterized in that the vehicle part (54) is a rim (41) of the vehicle (53). Vehicle fine dust collecting device (1) according to one of the preceding claims, characterized in that an opening of the suction channel into the constriction (48) of the flow channel (47) has a funnel-like suction area (51). Vehicle fine dust collecting device (1) according to one of the preceding claims with a separating device (18) for separating fine dust from a component (39) of the vehicle (53) assigned to the vehicle fine dust collecting device (1) or a roadway (24) and / or for Separating a boundary layer (12; 33) which contains fine dust. Vehicle fine dust collection device (1) according to Claim 5 , characterized in that the separating device (18) is a fluidic separating device which generates a directed fluid flow (38) which can be directed towards the component (39) or roadway (24) in order to a) fine dust from the component (39) or to separate the roadway (24) and / or b) to detach a boundary layer (12; 33) containing fine dust from the component (39) or fine dust from the roadway (24). Vehicle fine dust collection device (1) according to Claim 5 or 6th , characterized in that the component (39) moved relative to the vehicle fine dust collecting device (1) is a brake lining (6) and / or a brake disc (4) of the brake (2). Vehicle fine dust collection device (1) according to Claim 5 or 6th , characterized in that the component (39) moved relative to the vehicle fine dust collecting device (1) is a vehicle wheel (25) and the fine dust a) abrasion or fine dust from a tire (26) of the vehicle wheel (25) and / or b) the roadway (24) is arranged fine dust. Vehicle fine dust collection device (1) according to Claim 5 or 6th , characterized in that the component (39) moved relative to the vehicle fine dust collecting device (1) is a coupling body and the fine dust is abrasion or fine dust of the coupling body. Vehicle fine dust collection device (1) according to Claim 5 or 6th , characterized in that the component (39) moved relative to the vehicle fine dust collecting device (1) is a roadway (24) moved relative to the vehicle (53). Vehicle fine dust collection device (1) according to Claim 10 , characterized in that two fluidic separation devices (27, 28) are present, wherein a) a first fluidic separation device (27) can be aligned with a rotating vehicle wheel (25) in order to separate fine dust from the rotating vehicle wheel (25) and / or to detach a boundary layer (33) from the rotating vehicle wheel (25), and b) a second fluidic separation device (28) can be aligned with the roadway (24) in order to separate fine dust from the roadway (24) and / or a boundary layer to detach the roadway (24) from the roadway (24). Vehicle fine dust collecting device (1) according to one of the Claims 5 to 11 , characterized in that there is a cover (9) which interacts with the moving component (39) and at least reduces the escape of fine dust between the vehicle fine dust collecting device (1) and the component (39). Vehicle fine dust collecting device (1) according to one of the preceding claims, characterized in that there is a holding area (52) via which the vehicle fine dust collecting device (1) can be held on a vehicle (53). Vehicle fine dust collection device (1) according to Claim 13 , characterized in that the position and / or alignment of the at least one separating device (18) and / or a suction device (15) and / or the covering hood (9) with respect to the holding area (52) can be changed. Vehicle fine dust collection device (1) according to Claim 14 , characterized in that the position and / or alignment of the at least one separating device (18) and / or the suction device (15) and / or the covering hood (9) relative to the holding area (52) can be changed via an actuator (36). Vehicle (53) with a vehicle fine dust collecting device (1) according to one of the preceding claims.

Images