EP2052660B1 - Suction device - Google Patents

Suction device Download PDF

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Publication number
EP2052660B1
EP2052660B1 EP08017768A EP08017768A EP2052660B1 EP 2052660 B1 EP2052660 B1 EP 2052660B1 EP 08017768 A EP08017768 A EP 08017768A EP 08017768 A EP08017768 A EP 08017768A EP 2052660 B1 EP2052660 B1 EP 2052660B1
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EP
European Patent Office
Prior art keywords
opening
stem
filter
flow
suction
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Revoked
Application number
EP08017768A
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German (de)
French (fr)
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EP2052660A2 (en
EP2052660A3 (en
Inventor
Eugen Bruntner
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Electrostar GmbH
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Electrostar GmbH
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Application filed by Electrostar GmbH filed Critical Electrostar GmbH
Priority to PL08017768T priority Critical patent/PL2052660T3/en
Publication of EP2052660A2 publication Critical patent/EP2052660A2/en
Publication of EP2052660A3 publication Critical patent/EP2052660A3/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
    • A47L9/20—Means for cleaning filters

Definitions

  • the invention relates to a suction device according to the preamble of claim 1.
  • a suction device in whose housing two suction motors are housed, each associated with a filter.
  • Each suction motor has an air outlet opening, which can be closed by a shut-off valve when the respective filter needs to be cleaned. Then the associated suction motor is switched off and closed with the shut-off valve, the air outlet opening of this shut-off suction motor.
  • the two naturally aspirated engines require a correspondingly large-volume housing. The cleaning of the filter can only begin when the switched-off naturally-aspirated engine has reduced its speed so far that a suction effect no longer occurs.
  • the flow time of the suction motor is in the range of seconds.
  • a generic suction device ( DE-A-1 01 01 219 ) is only a naturally aspirated engine housed in the housing, the two filters are connected upstream. They are each assigned a cleaning device with which the respective filter can be cleaned, while still being sucked by the other filter dirty air.
  • the valve devices each have a plunger, on each of which there are two valve elements in the form of valve plates, which are arranged displaceably on the plunger. The valve devices form three-way valves. The sucked dirty air flows through the filter and enters an intermediate chamber, which are connected by two openings with a suction chamber and a respective exhaust air chamber.
  • the one valve element closes the exhaust chamber against the intermediate chamber, so that the air after Flow through the filter via the intermediate chamber first in the suction chamber and from there into the exhaust chamber flows.
  • the other valve element is also brought into the closed position by moving the corresponding plunger, whereby the intermediate chamber is separated from the suction chamber and the downstream exhaust chamber. Since the naturally aspirated engine continues to suck in dirty air, an overpressure is created in the exhaust air chamber of the filter to be cleaned. It is used to exert a shock pulse on the filter to be cleaned by the plunger of the associated valve means is further displaced, whereby the valve disc opens the passage opening between the exhaust chamber and the associated intermediate chamber. Part of the air thus flows through the filter to be cleaned in the reverse direction. Due to this backflow, the suction power decreases to a considerable extent.
  • the invention has the object of providing the generic suction device in such a way that in a compact design of the cleaning process of the filter at full suction when needed can be started immediately without idling times occur.
  • suction device only a single suction motor is provided, so that the housing of the suction device can be made very compact.
  • the suction motor remains switched on both during the suction process and during the cleaning process, so that idle times do not occur when cleaning the respective filter.
  • the associated valve device is actuated, which blocks the flow path of the clean air from the filter to the suction motor.
  • the plunger performs its ram stroke, whereby the one valve element closes the associated further passage opening and the sealing element releases the associated passage opening. This blocking process can take place abruptly, so that the cleaning process can be carried out immediately afterwards.
  • the suction motor remains switched on and operates at full power, so that it can be sucked on with the suction device.
  • the dirty air then flows only through the one filter in which the flow path to the air outlet opening is not shut off. If the cleaning process is completed, the plunger of the valve device is pushed back in a stroke in the starting position, whereby the flow path is released from the cleaned filter to the air outlet opening. In this way, the filters can be alternately cleaned if necessary. As long as the two filters are not yet added, the sucked dirty air flows through both filters.
  • the flow space and the downstream flow channel allow easy and reliable shut off the flow path of the air when the filter needs to be cleaned.
  • the plunger is electromagnetically, in particular by a solenoid, moved.
  • the opening width of the passage opening is greater than the diameter of the plunger. During the cleaning process, this passage opening is not sealed, so that the negative pressure in the flow direction behind the filter to be cleaned immediately coincides and the cleaning can be initiated immediately.
  • the diameter of the plunger is several times smaller than the width of the further passage opening. This ensures that during the suction process, the sucked air can flow quickly into the flow channel and from there in the direction of the air outlet opening after passing through the filter.
  • the valve element is seated at the free end of the plunger, preferably in the flow channel. This ensures that when moving the plunger, the valve element closes the one passage opening and at the same time the sealing element on the plunger releases the other passage opening.
  • the valve element does not have to ensure a 100% seal at the passage opening during the cleaning process of the filter. Possibly via the valve element located in the closed position entering leakage air does not adversely affect, since the free opening cross-section of the opposite passage opening, which is released by the sealing element, is substantially larger than the leakage cross-section.
  • the suction motor is advantageously located centrally in the housing, wherein the filters are arranged in the area next to the suction motor.
  • the suction device has a container 1, on which a hood 2 is detachably mounted.
  • a suction motor 3 is preferably housed centrally.
  • the suction device is provided with an intake 5, to which a suction hose can be connected.
  • the hood 2 is provided with at least one air outlet opening 6 through which the filtered air exits the suction device.
  • the suction motor 3 is seated in a support unit 11.
  • the suction device has two filters 16, 17, which are advantageously identical and each have a folded filter medium.
  • the two filters 16, 17 advantageously extend perpendicular to the plane of the drawing.
  • Each filter 16, 17 is associated with a cleaning device 20, 21, with which the respective filter 16, 17 can be cleaned when it is added by dust / dirt particles.
  • the cleaning means 20, 21 are known per se vibrating means with a Rüttelmagneten 22, 23, with which the filters 16, 17 are placed in vertical vibrations, as indicated in the drawing for the filter 17 by the double arrow 24.
  • the shaking movements in the vertical direction cause the adhering to the filter medium dust / dirt particles 25 are shaken off and fall down into the dirt container 1.
  • Each filter 16, 17 is associated with a valve device 26, 27, with the flow path from the intake manifold 5 to the air outlet opening 6 can be closed during the cleaning phase of the filter 16 and 17, respectively.
  • Both valve devices 26, 27 are advantageously the same design and provided on the support unit 11.
  • the valve devices 26, 27 each have a lifting magnet 28, 29, with which a plunger 30, 31 can be moved axially.
  • a valve disc 32, 33 is provided, with which an opening 34, 35 of the support unit 11 can be closed.
  • the opening 34, 35 connects flow channels 14, 15, each with a flow space 36, 37, in which the Rüttelmagnet 22, 23 of the cleaning device 20, 21 is located.
  • the plunger 30, 31 protrudes through an opening provided in a wall 40, 41 opening 38, 39 which is opposite to the opening 34, 35 at a distance.
  • the wall 40, 41 limits the respective flow space 36, 37 to the outside.
  • the free opening cross section of the openings 38, 39 is substantially smaller than the free opening cross section of the openings 34,35.
  • a sealing element 42, 43 which may be formed for example by a short piece of hose.
  • the two lifting magnets 28, 29 are located outside the flow spaces 36, 37.
  • the lifting magnets 28, 29 may be encapsulated.
  • the plunger 30 of the valve device 26 is extended, so that the valve disc 32, the opening 34 of the support unit 11 releases.
  • the sealing element 42 abuts against the outside of the wall 40 and seals the opening 38 in the wall 40 properly.
  • the plunger 31 of the valve device 27 is extended, so that the valve disc 33, the opening 35 releases and the sealing element 43, the opening 39 in the wall 41 seals.
  • the suction motor 3 the offset with dust / dirt particles 25 air is sucked in via the intake manifold 5 and flows through the filters 16, 17 in the flow chambers 36, 37.
  • the dust / dirt particles 25 are in the Filtering 16, 17 retained so that purified exhaust air flows into the flow spaces 36, 37.
  • the exhaust air enters the flow channels 14, 15.
  • the exhaust air then flows through an air passage opening 9 and from there through the air outlet opening 6 into the open.
  • the flow pattern is shown by a dashed line for the filter 16.
  • the valve disc 33 does not have to seal the opening 35 100%.
  • a cost-effective sealing element can be used for the valve disk 33, without causing disadvantages in the cleaning of the filter 16, 17 with it.
  • the opening 39 whose diameter is slightly larger than the diameter of the plunger 31, is open when the opening 35 is closed, so that leakage air reaching via this opening 35 into the flow space 37 can be compensated quickly.
  • the passage cross-section in the region of the opening 39 is greater than the leakage cross-section in the region of the valve disk 33, so that the leakage air entering the flow space 37 can be reliably compensated.
  • the vacuum generated by the suction motor 3 is reliably degraded through the opening 39, as described in the The way the free flow cross-section of the opening 39 is substantially larger than the leakage cross-section in the region of the valve disc 33rd
  • the suction device can continue to work, since the filter disk 32 of the plunger 30 of the valve device 26 does not close the opening 34.
  • the sucked by the suction motor 3 exhaust air can therefore, as shown in the drawing by the flow arrows, through the filter 16 into the flow chamber 36, through the opening 34 into the flow chamber 14, through the air passage opening 9 and through the air outlet opening 6 to flow outward.
  • the suction motor 3 operates at full power, so that the suction effect is not affected by the cleaning of the filter 17.
  • the solenoid 29 is turned off and the plunger 31 extended by the negative pressure generated by the vacuum motor 3, so that the valve disc 33, the opening 35 releases and at the same time the sealing element 43, the opening 39 seals. This switching process takes place abruptly. Thus, the filter 17 is switched back into the flow path for the dust / dirty air, so that they can flow through the filter 17.
  • the solenoid 28 is turned on and the plunger 30 is moved back.
  • the valve disk 32 then closes the opening 34, while the sealing element 42, the opening 38 releases.
  • the sealing element 16 can be cleaned in the manner described.
  • the filter 17 operates, so that even during the cleaning of the filter 16, the suction power of the suction device is not impaired.
  • the two filters 16, 17 can thus be cleaned alternately.
  • the suction motor 3 operates continuously with a constant high power, so that the suction power of the suction device remains unchanged even when cleaning the filter 16 and 17 respectively.
  • the suction device is characterized by a compact design, since only a suction motor 3 is used, the centrally in the container 1 is arranged.
  • the support unit 11 is detachably inserted into the container 1, so that it can be easily removed if necessary.
  • the suction device can be used for a long time until the container 1 has to be emptied. Since the filters 16, 17 are cleaned alternately, no idle times occur during the suction process, since a filter 16 or 17 is always ready for use.

Abstract

The device has a housing, in which a suction motor (3) and filters (16, 17) are accommodated, where the filters are provided with cleaning devices (20, 21). Valve devices (26, 27) are attached to each filter and allow to close a flow path from the filter to the suction motor to clean the filter. The valve devices have flow areas (36, 37), which lies behind the filters in a flow direction, and are separated from a following flow channel during cleaning of the respective filters. The filters allow to flow dirt air suctioned by the motor.

Description

Die Erfindung betrifft ein Sauggerät nach dem Oberbegriff des Anspruches 1.The invention relates to a suction device according to the preamble of claim 1.

Es ist ein Sauggerät bekannt, in dessen Gehäuse zwei Saugmotoren untergebracht sind, denen jeweils ein Filter zugeordnet ist. Jeder Saugmotor hat eine Luftaustrittsöffnung, die durch ein Absperrventil geschlossen werden kann, wenn das jeweilige Filter gereinigt werden muss. Dann wird der zugehörige Saugmotor abgeschaltet und mit dem Absperrventil die Luftaustrittsöffnung dieses abgeschalteten Saugmotors geschlossen. Die beiden Saugmotoren erfordern ein entsprechend großvolumiges Gehäuse. Die Reinigung des Filters kann erst dann beginnen, wenn der abgeschaltete Saugmotor seine Drehzahl so weit verringert hat, dass eine Saugwirkung nicht mehr auftritt. Die Auslaufzeit des Saugmotors liegt im Sekundenbereich.It is known a suction device, in whose housing two suction motors are housed, each associated with a filter. Each suction motor has an air outlet opening, which can be closed by a shut-off valve when the respective filter needs to be cleaned. Then the associated suction motor is switched off and closed with the shut-off valve, the air outlet opening of this shut-off suction motor. The two naturally aspirated engines require a correspondingly large-volume housing. The cleaning of the filter can only begin when the switched-off naturally-aspirated engine has reduced its speed so far that a suction effect no longer occurs. The flow time of the suction motor is in the range of seconds.

Bei einem gattungsgemäßen Sauggerät ( DE-A-1 01 01 219 ) ist nur ein Saugmotor im Gehäuse untergebracht, dem zwei Filter vorgeschaltet sind. Ihnen ist jeweils eine Reinigungseinrichtung zugeordnet, mit der das jeweilige Filter gereinigt werden kann, während durch das jeweils andere Filter weiterhin Schmutzluft angesaugt wird. Die Ventileinrichtungen haben jeweils einen Stößel, auf dem sich jeweils zwei Ventilelemente in Form von Ventiltellern befinden, die auf dem Stößel verschiebbar angeordnet sind. Die Ventileinrichtungen bilden Drei-Wege-Ventile. Die angesaugte Schmutzluft durchströmt die Filter und gelangt in eine Zwischenkammer, die durch zwei Öffnungen mit einer Saugkammer sowie jeweils einer Abluftkammer verbunden sind. Während des Saugvorganges verschließt das eine Ventilelement die Abluftkammer gegen die Zwischenkammer, so dass die Luft nach Durchströmen der Filter über die Zwischenkammer zunächst in die Saugkammer und von dort in die Abluftkammer strömt. Soll ein Filter gereinigt werden, wird durch Verschieben des entsprechenden Stößels das andere Ventilelement ebenfalls in die Schließstellung gebracht, wodurch die Zwischenkammer von der Saugkammer sowie der nachgeschalteten Abluftkammer getrennt wird. Da der Saugmotor weiterhin Schmutzluft ansaugt, entsteht in der Abluftkammer des zu reinigenden Filters ein Überdruck. Er wird dazu ausgenutzt, einen Stoßimpuls auf das zu reinigende Filter auszuüben, indem der Stößel der zugehörigen Ventileinrichtung weiter verschoben wird, wodurch der Ventilteller die Durchtrittsöffnung zwischen der Abluftkammer und der zugehörigen Zwischenkammer öffnet. Ein Teil der Luft durchströmt somit das zu reinigende Filter in umgekehrter Richtung. Durch diese Rückströmung lässt die Saugleistung in erheblichem Maße nach.In a generic suction device ( DE-A-1 01 01 219 ) is only a naturally aspirated engine housed in the housing, the two filters are connected upstream. They are each assigned a cleaning device with which the respective filter can be cleaned, while still being sucked by the other filter dirty air. The valve devices each have a plunger, on each of which there are two valve elements in the form of valve plates, which are arranged displaceably on the plunger. The valve devices form three-way valves. The sucked dirty air flows through the filter and enters an intermediate chamber, which are connected by two openings with a suction chamber and a respective exhaust air chamber. During the suction process, the one valve element closes the exhaust chamber against the intermediate chamber, so that the air after Flow through the filter via the intermediate chamber first in the suction chamber and from there into the exhaust chamber flows. If a filter to be cleaned, the other valve element is also brought into the closed position by moving the corresponding plunger, whereby the intermediate chamber is separated from the suction chamber and the downstream exhaust chamber. Since the naturally aspirated engine continues to suck in dirty air, an overpressure is created in the exhaust air chamber of the filter to be cleaned. It is used to exert a shock pulse on the filter to be cleaned by the plunger of the associated valve means is further displaced, whereby the valve disc opens the passage opening between the exhaust chamber and the associated intermediate chamber. Part of the air thus flows through the filter to be cleaned in the reverse direction. Due to this backflow, the suction power decreases to a considerable extent.

Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Sauggerät so auszubilden, dass bei kompakter Ausbildung der Reinigungsvorgang des Filters bei voller Saugleistung bei Bedarf sofort gestartet werden kann, ohne dass Leerlaufzeiten auftreten.The invention has the object of providing the generic suction device in such a way that in a compact design of the cleaning process of the filter at full suction when needed can be started immediately without idling times occur.

Diese Aufgabe wird beim gattungsgemäßen Sauggerät erfindungsgemäß mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst.This object is achieved in the generic suction device according to the invention with the characterizing features of claim 1.

Beim erfindungsgemäßen Sauggerät ist nur ein einziger Saugmotor vorgesehen, so dass das Gehäuse des Sauggerätes sehr kompakt ausgebildet sein kann. Der Saugmotor bleibt sowohl während des Saugvorganges als auch während des Reinigungsvorganges eingeschaltet, so dass Leerlaufzeiten beim Reinigen des jeweiligen Filters nicht auftreten. Um ein Filter zu reinigen, wird die zugehörige Ventileinrichtung betätigt, die den Strömungsweg der Reinluft vom Filter zum Saugmotor sperrt. Der Stößel führt seinen Stößelhub aus, wodurch das eine Ventilelement die zugehörige weitere Durchtrittsöffnung verschließt und das Dichtelement die zugehörige Durchtrittsöffnung freigibt. Dieser Sperrvorgang kann schlagartig erfolgen, so dass der Reinigungsvorgang unmittelbar anschließend durchgeführt werden kann. Der Saugmotor bleibt eingeschaltet und arbeitet mit voller Leistung, so dass mit dem Sauggerät weitergesaugt werden kann. Die Schmutzluft strömt dann nur durch das eine Filter, bei dem der Strömungsweg zur Luftaustrittsöffnung nicht abgesperrt ist. Ist der Reinigungsvorgang abgeschlossen, wird der Stößel der Ventileinrichtung in einem Hub in die Ausgangslage zurückgeschoben, wodurch der Strömungsweg vom gereinigten Filter zur Luftaustrittsöffnung freigegeben wird. Auf diese Weise können abwechselnd die Filter bei Bedarf gereinigt werden. Solange die beiden Filter noch nicht zugesetzt sind, strömt die angesaugte Schmutzluft durch beide Filter. Der Strömungsraum und der nachgeschaltete Strömungskanal erlauben die einfache und zuverlässige Absperrung des Strömungsweges der Luft, wenn das Filter gereinigt werden muss. Durch Verschieben des Stößels mit den Ventil- und Dichtelementen lässt sich der Strömungsweg in einfacher Weise und innerhalb kürzester Zeit unterbrechen bzw. freigeben. Da nach Beendigung des Reinigungsvorganges die Durchtrittsöffnung durch das Dichtelement geschlossen wird, kann sich der für die Absaugung notwendige Unterdruck in Strömungsrichtung hinter dem Filter sofort aufbauen.When suction device according to the invention only a single suction motor is provided, so that the housing of the suction device can be made very compact. The suction motor remains switched on both during the suction process and during the cleaning process, so that idle times do not occur when cleaning the respective filter. To clean a filter, the associated valve device is actuated, which blocks the flow path of the clean air from the filter to the suction motor. The plunger performs its ram stroke, whereby the one valve element closes the associated further passage opening and the sealing element releases the associated passage opening. This blocking process can take place abruptly, so that the cleaning process can be carried out immediately afterwards. The suction motor remains switched on and operates at full power, so that it can be sucked on with the suction device. The dirty air then flows only through the one filter in which the flow path to the air outlet opening is not shut off. If the cleaning process is completed, the plunger of the valve device is pushed back in a stroke in the starting position, whereby the flow path is released from the cleaned filter to the air outlet opening. In this way, the filters can be alternately cleaned if necessary. As long as the two filters are not yet added, the sucked dirty air flows through both filters. The flow space and the downstream flow channel allow easy and reliable shut off the flow path of the air when the filter needs to be cleaned. By moving the plunger with the valve and sealing elements, the flow path can be interrupted or released in a simple manner and within a very short time. Since the passage opening is closed by the sealing element after completion of the cleaning process, the negative pressure necessary for the suction in the flow direction behind the filter can build up immediately.

Vorteilhaft wird der Stößel elektromagnetisch, insbesondere durch einen Hubmagneten, verschoben.Advantageously, the plunger is electromagnetically, in particular by a solenoid, moved.

Damit der Hubmagnet vor Schmutz/Staubpartikeln geschützt ist, ist er vorteilhaft außerhalb des Strömungsraumes angeordnet.So that the solenoid is protected from dirt / dust particles, it is advantageously arranged outside of the flow space.

Die Öffnungsweite der Durchtrittsöffnung ist größer als der Durchmesser des Stößels. Während des Reinigungsvorganges ist diese Durchtrittsöffnung nicht abgedichtet, so dass der Unterdruck in Strömungsrichtung hinter dem zu reinigenden Filter augenblicklich zusammenfällt und die Reinigung sofort eingeleitet werden kann.The opening width of the passage opening is greater than the diameter of the plunger. During the cleaning process, this passage opening is not sealed, so that the negative pressure in the flow direction behind the filter to be cleaned immediately coincides and the cleaning can be initiated immediately.

Vorteilhaft ist der Durchmesser des Stößels um ein Mehrfaches kleiner als die Weite der weiteren Durchtrittsöffnung. Dadurch ist gewährleistet, dass beim Saugvorgang die angesaugte Luft nach dem Durchtritt durch das Filter schnell in den Strömungskanal und von dort in Richtung auf die Luftaustrittsöffnung strömen kann.Advantageously, the diameter of the plunger is several times smaller than the width of the further passage opening. This ensures that during the suction process, the sucked air can flow quickly into the flow channel and from there in the direction of the air outlet opening after passing through the filter.

Zweckmäßig sitzt das Ventilelement am freien Ende des Stößels, vorzugsweise im Strömungskanal. Dadurch wird erreicht, dass beim Verschieben des Stößels das Ventilelement die eine Durchtrittsöffnung verschließt und gleichzeitig das Dichtelement auf dem Stößel die andere Durchtrittsöffnung freigibt. Das Ventilelement muss keine 100%ige Abdichtung an der Durchtrittsöffnung beim Reinigungsvorgang des Filters gewährleisten. Eventuell über das in Schließstellung befindliche Ventilelement eintretende Leckageluft wirkt sich nicht nachteilig aus, da der freie Öffnungsquerschnitt der gegenüberliegenden Durchtrittsöffnung, die durch das Dichtelement freigegeben ist, wesentlich größer ist als der Leckagequerschnitt.Suitably, the valve element is seated at the free end of the plunger, preferably in the flow channel. This ensures that when moving the plunger, the valve element closes the one passage opening and at the same time the sealing element on the plunger releases the other passage opening. The valve element does not have to ensure a 100% seal at the passage opening during the cleaning process of the filter. Possibly via the valve element located in the closed position entering leakage air does not adversely affect, since the free opening cross-section of the opposite passage opening, which is released by the sealing element, is substantially larger than the leakage cross-section.

Der Saugmotor liegt vorteilhaft mittig im Gehäuse, wobei die Filter im Bereich neben dem Saugmotor angeordnet sind. Eine solche Anordnung ergibt nicht nur eine sehr kompakte Gestaltung des Gehäuses und damit des gesamten Sauggerätes, sondern erlaubt auch einen optimalen Strömungsverlauf innerhalb des Gehäuses.The suction motor is advantageously located centrally in the housing, wherein the filters are arranged in the area next to the suction motor. Such an arrangement not only results in a very compact design of the housing and thus of the entire suction device, but also allows an optimal flow path within the housing.

Weitere Merkmale der Erfindung ergeben sich aus den weiteren Ansprüchen, der Beschreibung und der Zeichnung.Further features of the invention will become apparent from the other claims, the description and the drawings.

Die Erfindung wird nachstehend anhand eines in der Zeichnung schematisch dargestellten Ausführungsbeispieles eines Sauggerätes näher erläutert.The invention will be explained in more detail with reference to an embodiment of a suction device schematically illustrated in the drawing.

Das Sauggerät hat einen Behälter 1, auf den eine Haube 2 lösbar aufgesetzt ist. Im Behälter 1 ist vorzugsweise zentral ein Saugmotor 3 untergebracht. Das Sauggerät ist mit einem Ansaugstutzen 5 versehen, an den ein Saugschlauch angeschlossen werden kann. Die Haube 2 ist mit wenigstens einer Luftaustrittsöffnung 6 versehen, über die die gefilterte Luft aus dem Sauggerät austritt. Der Saugmotor 3 sitzt in einer Trageinheit 11.The suction device has a container 1, on which a hood 2 is detachably mounted. In the container 1, a suction motor 3 is preferably housed centrally. The suction device is provided with an intake 5, to which a suction hose can be connected. The hood 2 is provided with at least one air outlet opening 6 through which the filtered air exits the suction device. The suction motor 3 is seated in a support unit 11.

Das Sauggerät hat zwei Filter 16, 17, die vorteilhaft gleich ausgebildet sind und jeweils ein gefaltetes Filtermedium haben. Die beiden Filter 16, 17 erstrecken sich vorteilhaft senkrecht zur Zeichenebene.The suction device has two filters 16, 17, which are advantageously identical and each have a folded filter medium. The two filters 16, 17 advantageously extend perpendicular to the plane of the drawing.

Jedem Filter 16, 17 ist eine Reinigungseinrichtung 20, 21 zugeordnet, mit der das jeweilige Filter 16, 17 gereinigt werden kann, wenn es von Staub/Schmutzpartikeln zugesetzt ist. Die Reinigungseinrichtungen 20, 21 sind an sich bekannte Rütteleinrichtungen mit einem Rüttelmagneten 22, 23, mit dem die Filter 16, 17 in vertikale Schwingungen versetzt werden, wie dies in der Zeichnung für den Filter 17 durch den Doppelpfeil 24 angedeutet ist. Die Rüttelbewegungen in vertikaler Richtung führen dazu, dass die am Filtermedium anhaftenden Staub/Schmutzteilchen 25 abgeschüttelt werden und nach unten in den Schmutzbehälter 1 fallen.Each filter 16, 17 is associated with a cleaning device 20, 21, with which the respective filter 16, 17 can be cleaned when it is added by dust / dirt particles. The cleaning means 20, 21 are known per se vibrating means with a Rüttelmagneten 22, 23, with which the filters 16, 17 are placed in vertical vibrations, as indicated in the drawing for the filter 17 by the double arrow 24. The shaking movements in the vertical direction cause the adhering to the filter medium dust / dirt particles 25 are shaken off and fall down into the dirt container 1.

Jedem Filter 16, 17 ist eine Ventileinrichtung 26, 27 zugeordnet, mit der während der Reinigungsphase des Filters 16 bzw. 17 der Strömungsweg vom Ansaugstutzen 5 zur Luftaustrittsöffnung 6 geschlossen werden kann. Beide Ventileinrichtungen 26, 27 sind vorteilhaft gleich ausgebildet und an der Trageinheit 11 vorgesehen. Die Ventileinrichtungen 26, 27 haben jeweils einen Hubmagneten 28, 29, mit dem ein Stößel 30, 31 axial verschoben werden kann. Am freien Ende des Stößels 30, 31 ist eine Ventilscheibe 32, 33 vorgesehen, mit der eine Öffnung 34, 35 der Trageinheit 11 geschlossen werden kann. Die Öffnung 34, 35 verbindet Strömungskanäle 14, 15 mit jeweils einem Strömungsraum 36, 37, in dem sich der Rüttelmagnet 22, 23 der Reinigungseinrichtung 20, 21 befindet.Each filter 16, 17 is associated with a valve device 26, 27, with the flow path from the intake manifold 5 to the air outlet opening 6 can be closed during the cleaning phase of the filter 16 and 17, respectively. Both valve devices 26, 27 are advantageously the same design and provided on the support unit 11. The valve devices 26, 27 each have a lifting magnet 28, 29, with which a plunger 30, 31 can be moved axially. At the free end of the plunger 30, 31, a valve disc 32, 33 is provided, with which an opening 34, 35 of the support unit 11 can be closed. The opening 34, 35 connects flow channels 14, 15, each with a flow space 36, 37, in which the Rüttelmagnet 22, 23 of the cleaning device 20, 21 is located.

Der Stößel 30, 31 ragt durch eine in einer Wand 40, 41 vorgesehene Öffnung 38, 39, die der Öffnung 34, 35 mit Abstand gegenüberliegt. Die Wand 40, 41 begrenzt den jeweiligen Strömungsraum 36, 37 nach außen. Der freie Öffnungsquerschnitt der Öffnungen 38, 39 ist wesentlich kleiner als der freie Öffnungsquerschnitt der Öffnungen 34,35.The plunger 30, 31 protrudes through an opening provided in a wall 40, 41 opening 38, 39 which is opposite to the opening 34, 35 at a distance. The wall 40, 41 limits the respective flow space 36, 37 to the outside. The free opening cross section of the openings 38, 39 is substantially smaller than the free opening cross section of the openings 34,35.

Auf dem Stößel 30, 31 sitzt ein Dichtelement 42, 43, das beispielsweise durch ein kurzes Schlauchstück gebildet sein kann. Die beiden Hubmagneten 28, 29 befinden sich außerhalb der Strömungsräume 36, 37. Die Hubmagneten 28, 29 können abgekapselt sein.On the plunger 30, 31 is seated a sealing element 42, 43, which may be formed for example by a short piece of hose. The two lifting magnets 28, 29 are located outside the flow spaces 36, 37. The lifting magnets 28, 29 may be encapsulated.

In der Zeichnung ist der Stößel 30 der Ventileinrichtung 26 ausgefahren, so dass die Ventilscheibe 32 die Öffnung 34 der Trageinheit 11 freigibt. Das Dichtelement 42 liegt an der Außenseite der Wand 40 an und dichtet die Öffnung 38 in der Wand 40 einwandfrei ab. Ist das Filter 17 noch nicht mit Staub/Schmutzteilchen 25 zugesetzt, ist auch der Stößel 31 der Ventileinrichtung 27 ausgefahren, so dass die Ventilscheibe 33 die Öffnung 35 freigibt und das Dichtelement 43 die Öffnung 39 in der Wand 41 abdichtet. Mittels des Saugmotors 3 wird die mit Staub/Schmutzteilchen 25 versetzte Luft über den Ansaugstutzen 5 angesaugt und strömt durch die Filter 16, 17 in die Strömungsräume 36, 37. Die Staub/Schmutzpartikel 25 werden in den Filtern 16, 17 zurückgehalten, so dass gereinigte Abluft in die Strömungsräume 36, 37 strömt. Über die Öffnungen 34, 35 gelangt die Abluft in die Strömungskanäle 14, 15. Die Abluft strömt anschließend durch eine Luftdurchtrittsöffnung 9 und von dort durch die Luftaustrittsöffnung 6 ins Freie. In der Zeichnung ist der Strömungsverlauf durch eine gestrichelte Linie für das Filter 16 dargestellt.In the drawing, the plunger 30 of the valve device 26 is extended, so that the valve disc 32, the opening 34 of the support unit 11 releases. The sealing element 42 abuts against the outside of the wall 40 and seals the opening 38 in the wall 40 properly. If the filter 17 is not yet added with dust / dirt particles 25, the plunger 31 of the valve device 27 is extended, so that the valve disc 33, the opening 35 releases and the sealing element 43, the opening 39 in the wall 41 seals. By means of the suction motor 3, the offset with dust / dirt particles 25 air is sucked in via the intake manifold 5 and flows through the filters 16, 17 in the flow chambers 36, 37. The dust / dirt particles 25 are in the Filtering 16, 17 retained so that purified exhaust air flows into the flow spaces 36, 37. Via the openings 34, 35, the exhaust air enters the flow channels 14, 15. The exhaust air then flows through an air passage opening 9 and from there through the air outlet opening 6 into the open. In the drawing, the flow pattern is shown by a dashed line for the filter 16.

Unterdruck- oder zeitgesteuert werden die Filter 16, 17 nacheinander gereinigt. Hierfür wird die jeweilige Ventileinrichtung 26, 27 automatisch eingeschaltet, im Ausführungsbeispiel die Ventileinrichtung 27. Der Hubmagnet 29 zieht den Stößel 31 zurück, so dass die Ventilscheibe 33 die Öffnung 35 schließt. Gleichzeitig hebt das Dichtelement 43 von der Öffnung 39 ab. Durch Einschalten des Hubmagneten 29 wird der Stößel 31 schlagartig in die Schließstellung verschoben. Da die Öffnung 39 größeren Durchmesser hat als der Stößel 31, fällt der Unterdruck hinter dem Filter 17 im Strömungsraum 37 schlagartig zusammen. Dadurch ist es möglich, unmittelbar anschließend die Reinigungseinrichtung 21 zu betätigen, das heißt den Rüttelmagneten 23 einzuschalten. Das Filter 17 wird dann in Richtung des Doppelpfeiles 24 hin und her bewegt. Durch diese Rüttelbewegung werden die am Filtermedium des Filters 17 anhaftenden Staub/Schmutzpartikel 25 abgeschüttelt und das Filtermedium gereinigt.Under vacuum or time-controlled filters 16, 17 are cleaned successively. For this purpose, the respective valve device 26, 27 is switched on automatically, in the exemplary embodiment, the valve device 27. The solenoid 29 pulls back the plunger 31, so that the valve disc 33, the opening 35 closes. At the same time, the sealing element 43 lifts off from the opening 39. By switching on the solenoid 29, the plunger 31 is suddenly moved into the closed position. Since the opening 39 has a larger diameter than the plunger 31, the negative pressure behind the filter 17 in the flow space 37 collapses abruptly. This makes it possible, immediately thereafter, to actuate the cleaning device 21, that is to turn on the vibrating magnet 23. The filter 17 is then moved in the direction of the double arrow 24 back and forth. By this shaking movement adhering to the filter medium of the filter 17 dust / dirt particles 25 are shaken off and cleaned the filter medium.

Die Ventilscheibe 33 muss die Öffnung 35 nicht 100%ig abdichten. Dadurch kann für die Ventilscheibe 33 ein preisgünstiges Dichtelement eingesetzt werden, ohne dass dies Nachteile bei der Reinigung des Filters 16, 17 mit sich bringt. Die Öffnung 39, deren Durchmesser etwas größer ist als der Durchmesser des Stößels 31, ist bei geschlossener Öffnung 35 offen, so dass über diese Öffnung 35 in den Strömungsraum 37 gelangende Leckageluft rasch ausgeglichen werden kann. Der Durchlassquerschnitt im Bereich der Öffnung 39 ist größer als der Leckagequerschnitt im Bereich der Ventilscheibe 33, so dass die in den Strömungsraum 37 eintretende Leckageluft zuverlässig ausgeglichen werden kann. Der vom Saugmotor 3 erzeugte Unterdruck wird über die Öffnung 39 zuverlässig abgebaut, da in der beschriebenen Weise der freie Strömungsquerschnitt der Öffnung 39 wesentlich größer ist als der Leckagequerschnitt im Bereich der Ventilscheibe 33.The valve disc 33 does not have to seal the opening 35 100%. As a result, a cost-effective sealing element can be used for the valve disk 33, without causing disadvantages in the cleaning of the filter 16, 17 with it. The opening 39, whose diameter is slightly larger than the diameter of the plunger 31, is open when the opening 35 is closed, so that leakage air reaching via this opening 35 into the flow space 37 can be compensated quickly. The passage cross-section in the region of the opening 39 is greater than the leakage cross-section in the region of the valve disk 33, so that the leakage air entering the flow space 37 can be reliably compensated. The vacuum generated by the suction motor 3 is reliably degraded through the opening 39, as described in the The way the free flow cross-section of the opening 39 is substantially larger than the leakage cross-section in the region of the valve disc 33rd

Während der Reinigung des Filters 17 kann das Sauggerät weiterarbeiten, da die Filterscheibe 32 des Stößels 30 der Ventileinrichtung 26 die Öffnung 34 nicht verschließt. Die vom Saugmotor 3 angesaugte Abluft kann darum, wie in der Zeichnung durch die Strömungspfeile dargestellt, durch das Filter 16 in den Strömungsraum 36, durch die Öffnung 34 in den Strömungsraum 14, durch die Luftdurchtrittsöffnung 9 und durch die Luftaustrittsöffnung 6 nach außen strömen. Der Saugmotor 3 arbeitet mit voller Leistung, so dass die Saugwirkung durch die Reinigung des Filters 17 nicht beeinträchtigt wird.During cleaning of the filter 17, the suction device can continue to work, since the filter disk 32 of the plunger 30 of the valve device 26 does not close the opening 34. The sucked by the suction motor 3 exhaust air can therefore, as shown in the drawing by the flow arrows, through the filter 16 into the flow chamber 36, through the opening 34 into the flow chamber 14, through the air passage opening 9 and through the air outlet opening 6 to flow outward. The suction motor 3 operates at full power, so that the suction effect is not affected by the cleaning of the filter 17.

Sobald der Reinigungsvorgang abgeschlossen ist, wird der Hubmagnet 29 abgeschaltet und der Stößel 31 durch den vom Saugmotor 3 erzeugten Unterdruck ausgefahren, so dass die Ventilscheibe 33 die Öffnung 35 freigibt und gleichzeitig das Dichtelement 43 die Öffnung 39 dicht verschließt. Dieser Umschaltvorgang erfolgt wiederum schlagartig. Damit wird das Filter 17 wieder in den Strömungsweg für die Staub/Schmutzluft geschaltet, so dass sie auch durch das Filter 17 strömen kann.Once the cleaning process is completed, the solenoid 29 is turned off and the plunger 31 extended by the negative pressure generated by the vacuum motor 3, so that the valve disc 33, the opening 35 releases and at the same time the sealing element 43, the opening 39 seals. This switching process takes place abruptly. Thus, the filter 17 is switched back into the flow path for the dust / dirty air, so that they can flow through the filter 17.

Anschließend wird der Hubmagnet 28 eingeschaltet und der Stößel 30 zurückgefahren. Die Ventilscheibe 32 schließt dann die Öffnung 34, während das Dichtelement 42 die Öffnung 38 freigibt. Nunmehr kann das Dichtelement 16 in der beschriebenen Weise gereinigt werden. Während dieses Reinigungsprozesses arbeitet das Filter 17, so dass auch während der Reinigung des Filters 16 die Saugleistung des Sauggerätes nicht beeinträchtigt ist.Subsequently, the solenoid 28 is turned on and the plunger 30 is moved back. The valve disk 32 then closes the opening 34, while the sealing element 42, the opening 38 releases. Now, the sealing element 16 can be cleaned in the manner described. During this cleaning process, the filter 17 operates, so that even during the cleaning of the filter 16, the suction power of the suction device is not impaired.

Die beiden Filter 16, 17 können somit abwechselnd gereinigt werden. Der Saugmotor 3 arbeitet durchgehend mit konstanter hoher Leistung, so dass die Saugleistung des Sauggerätes auch beim Reinigen des Filters 16 bzw. 17 unverändert bleibt. Das Sauggerät zeichnet sich durch eine kompakte Ausbildung aus, da nur ein Saugmotor 3 verwendet wird, der zentral im Behälter 1 angeordnet ist. Die Trageinheit 11 ist lösbar in den Behälter 1 eingesetzt, so dass sie bei Bedarf einfach herausgenommen werden kann. Trotz des einzigen Saugmotors 3 kann das Sauggerät über lange Zeit eingesetzt werden, bis der Behälter 1 entleert werden muss. Da die Filter 16, 17 abwechselnd gereinigt werden, treten beim Saugvorgang keine Leerzeiten auf, da stets ein Filter 16 oder 17 einsatzbereit ist. Grundsätzlich ist es möglich, das Sauggerät mit mehr als zwei Filtern auszurüsten, denen jeweils eine Ventileinrichtung und eine Reinigungseinrichtung zugeordnet ist. In diesem Falle können die Filter in der beschriebenen Weise zeitgesteuert abwechselnd gereinigt werden, während mit den jeweils anderen Filtern weitergearbeitet wird.The two filters 16, 17 can thus be cleaned alternately. The suction motor 3 operates continuously with a constant high power, so that the suction power of the suction device remains unchanged even when cleaning the filter 16 and 17 respectively. The suction device is characterized by a compact design, since only a suction motor 3 is used, the centrally in the container 1 is arranged. The support unit 11 is detachably inserted into the container 1, so that it can be easily removed if necessary. Despite the single suction motor 3, the suction device can be used for a long time until the container 1 has to be emptied. Since the filters 16, 17 are cleaned alternately, no idle times occur during the suction process, since a filter 16 or 17 is always ready for use. In principle, it is possible to equip the suction device with more than two filters, to each of which a valve device and a cleaning device are assigned. In this case, the filters can be cleaned in the manner described alternately alternately while working with the other filters.

Claims (9)

  1. A suction device having a housing (1, 2) accommodating a suction motor (3) and at least two filters (16, 17) which each have associated therewith a valve device (26, 27), by which the flow path from the filter (16, 17) to the suction motor (3) is blockable, and which are each provided with a cleaning device (20, 21) and through which there flows contaminated air, drawn in by the suction motor (3), which issues via at least one air-exit opening (6) of the housing (1, 2) after passage through the filters (16, 17), wherein the valve devices (26, 27) have, located in each case on a displaceable stem (30, 31), a valve element (32, 33) and a sealing element (42, 43) by means of which through openings (34, 35; 38, 39) are closable, wherein in each case the valve element (32, 33) separates a flow chamber (36, 37), lying after the filter (16, 17) in the direction of flow, upon cleaning of the respective filter (16, 17) from a flow channel (14, 15) following thereafter, wherein the stem (30, 31) projects through a through opening (38, 39) in a wall (40, 41) of the flow chamber (36, 37), wherein in each case on the stem (30, 31) there is located the sealing element (42, 43), which seals the through opening (38, 39) in the wall (40, 41) of the flow chamber (36, 37) when the flow chamber (36, 37) is in a flow connection with the flow channel (14, 15), wherein the stem (30, 31) projects through a further through opening (34, 35), through which the flow chamber (36, 37) is in a flow connection with the flow channel (14, 15), wherein the valve element (32, 33) closes the further through opening (34, 35) during cleaning of the filter (16, 17), characterised in that in each case the valve element (32, 33) and the sealing element (42, 43) are rigidly connected to the stem (30, 31) which executes a sudden displacement between an initial position and an end position, wherein in the initial position one valve element (32, 33) of the valve devices (26, 27) releases the further through opening (34, 35) and the other sealing element (42, 43) of the stem (30, 31) closes the through opening (38, 39), and in that in the other final position of the stem (30, 31), one valve element (32, 33) closes the further though opening (34, 35) and the other sealing element (42, 43) in the case in question releases the through opening (38, 39).
  2. A suction device according to claim 1, characterised in that the stem (30, 31) is displaceable by a lifting magnet (28, 29).
  3. A suction device according to claim 2, characterised in that the lifting magnet (28, 29) lies outside of the flow chamber (36, 37).
  4. A suction device according to any one of claims 1 to 3, characterised in that the through opening (38, 39) has a width of opening greater than the diameter of the stem (30, 31).
  5. A suction device according to any one of claims 1 to 4, characterised in that the diameter of the stem (30, 31) is several times smaller than the width of the further through opening (34, 35).
  6. A suction device according to any one of claims 1 to 5, characterised in that the valve element (32, 33) is provided at the free end of the stem (30, 31).
  7. A suction device according to any one of claims 1 to 6, characterised in that the valve element (32, 33) lies in the flow channel (14, 15).
  8. A suction device according to any one of claims 1 to 7, characterised in that the suction motor (3) is arranged centrally in the housing (1, 2).
  9. A suction device according to any one of claims 1 to 8, characterised in that the filters (16, 17) lie beside the suction motor (3).
EP08017768A 2007-10-26 2008-10-10 Suction device Revoked EP2052660B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08017768T PL2052660T3 (en) 2007-10-26 2008-10-10 Suction device

Applications Claiming Priority (1)

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DE202007015242U DE202007015242U1 (en) 2007-10-26 2007-10-26 suction device

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EP2052660A2 EP2052660A2 (en) 2009-04-29
EP2052660A3 EP2052660A3 (en) 2009-07-01
EP2052660B1 true EP2052660B1 (en) 2012-02-29

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US (1) US8015660B2 (en)
EP (1) EP2052660B1 (en)
AT (1) ATE547037T1 (en)
DE (1) DE202007015242U1 (en)
DK (1) DK2052660T3 (en)
PL (1) PL2052660T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10729299B2 (en) 2016-01-19 2020-08-04 Festool Gmbh Suction device
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box
IT202100027068A1 (en) 2021-10-21 2023-04-21 Elsea S R L DEVICE FOR CLEANING THE SUCTION FILTERS OF A VACUUM CLEANER

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005017568A1 (en) 2005-04-11 2006-10-12 Alfred Kärcher Gmbh & Co. Kg vacuum cleaning
WO2008014797A1 (en) 2006-07-29 2008-02-07 Alfred Kärcher Gmbh & Co. Kg Method for cleaning the filters of a vacuum cleaner and vacuum cleaner for carrying out the method
DE102008047047B4 (en) * 2008-09-13 2012-09-20 Alto Deutschland Gmbh Filter cleaning in a vacuum cleaner with flap element
CN102421503B (en) 2009-04-22 2014-03-12 阿尔弗雷德·凯驰两合公司 Method for cleaning two filters of suction device for cleaning purposes, and suction device for performing method
DE102009020769A1 (en) 2009-04-30 2010-11-04 Alfred Kärcher Gmbh & Co. Kg vacuum cleaning
ES2709904T3 (en) 2009-07-07 2019-04-22 Kaercher Alfred Se & Co Kg Suction apparatus for cleaning purposes
DE102010045979A1 (en) * 2010-09-18 2012-03-22 Nilfisk-Advance A/S Filter cleaning for vacuum cleaner with external fan
US20130219652A1 (en) * 2012-02-28 2013-08-29 Steve Martel Valve system and method
EP2662011B8 (en) * 2012-05-07 2015-10-07 IP Cleaning S.p.A. Suction apparatus
CN104000538B (en) * 2013-02-27 2016-08-17 天佑电器（苏州）有限公司 Burnisher
US9107550B2 (en) 2013-09-27 2015-08-18 Black & Decker Inc. Compact vacuum and sander
US10118236B2 (en) 2014-09-26 2018-11-06 Kennametal Inc. Rotary cutting tool
US20220369881A1 (en) * 2016-12-12 2022-11-24 Skybest Electric Appliance (Suzhou) Co., Ltd. Dust Collector and Self-Cleaning Method for Filter Thereof
EP3420874A1 (en) 2017-06-29 2019-01-02 HILTI Aktiengesellschaft Filter cleaning
EP3753464A1 (en) * 2019-06-18 2020-12-23 Hilti Aktiengesellschaft Arrangement of a cleaning unit in a vacuum cleaner and vacuum cleaner comprising such an arrangement
CN112228259B (en) * 2020-10-21 2021-09-07 马鞍山市常立发机械制造有限公司 Diesel engine air ducting for agricultural machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10101219C9 (en) 2001-01-12 2018-05-17 Nilfisk-Advance A/S A vacuum cleaner
DE202004012911U1 (en) * 2004-08-18 2004-10-21 Electrostar Schöttle GmbH & Co. KG Suction device with several suction motors
ATE460108T1 (en) * 2006-01-27 2010-03-15 Black & Decker Inc FILTER CLEANING MECHANISM OF VACUUM CLEANER
DE102006000310A1 (en) * 2006-06-26 2008-01-10 Hilti Ag dust extraction
ITMI20071121A1 (en) * 2007-06-01 2008-12-02 Guido Valentini "DUST ASPIRATOR WITH AUTOMATIC FILTER CLEANING"

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10729299B2 (en) 2016-01-19 2020-08-04 Festool Gmbh Suction device
US11627863B2 (en) 2017-01-13 2023-04-18 Black & Decker Inc. Dust collection box
IT202100027068A1 (en) 2021-10-21 2023-04-21 Elsea S R L DEVICE FOR CLEANING THE SUCTION FILTERS OF A VACUUM CLEANER
EP4186404A1 (en) 2021-10-21 2023-05-31 Elsea S.r.l. Device for cleaning the suction filters of a vacuum cleaner

Also Published As

Publication number Publication date
DE202007015242U1 (en) 2007-12-27
US8015660B2 (en) 2011-09-13
DK2052660T3 (en) 2012-06-25
PL2052660T3 (en) 2012-07-31
EP2052660A2 (en) 2009-04-29
EP2052660A3 (en) 2009-07-01
ATE547037T1 (en) 2012-03-15
US20090106933A1 (en) 2009-04-30

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