EP2372255B1 - Filtre à graisse pour une hotte aspirante et hotte aspirante - Google Patents

Filtre à graisse pour une hotte aspirante et hotte aspirante Download PDF

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Publication number
EP2372255B1
EP2372255B1 EP11160109.2A EP11160109A EP2372255B1 EP 2372255 B1 EP2372255 B1 EP 2372255B1 EP 11160109 A EP11160109 A EP 11160109A EP 2372255 B1 EP2372255 B1 EP 2372255B1
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EP
European Patent Office
Prior art keywords
filter element
grease filter
element according
extractor hood
filler
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP11160109.2A
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German (de)
English (en)
Other versions
EP2372255A3 (fr
EP2372255A2 (fr
Inventor
Daniel Metz
Udo Reiff
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Hausgeraete GmbH filed Critical BSH Hausgeraete GmbH
Publication of EP2372255A2 publication Critical patent/EP2372255A2/fr
Publication of EP2372255A3 publication Critical patent/EP2372255A3/fr
Application granted granted Critical
Publication of EP2372255B1 publication Critical patent/EP2372255B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2035—Arrangement or mounting of filters

Definitions

  • the invention relates to a grease filter element for a cooker hood and a hood according to the preamble of claim 1.
  • a filter element is from document US 2005/0028498 A1 known.
  • a filter cartridge is generally used in which a plurality of layers of an expanded metal are arranged. Through the openings in the individual expanded metal layers and the resulting change in direction of the fumes and vapors, particles, in particular fat and liquid particles from the vapors and fumes are filtered out and are deposited on the expanded metal layers.
  • the object of the present invention is to provide a grease filter element for the separation of impurities from fumes and vapors, in particular grease, which at least reduces or at least reduces the disadvantages of known grease filter elements.
  • the invention is based on the finding that this object can be achieved by providing the grease filter element with a filler which differs from the cover layer of the grease filter element in shape and / or material and is arranged in a suitable form between the cover layers.
  • the object is therefore achieved by a grease filter element for an extractor hood, which has two cover layers.
  • the fat filter element is characterized in that between the cover layers, a filler in the form of a bed of plastic particles is arranged.
  • the grease filter element is also referred to below as a filter element.
  • a cover layer is a layer of the fat filter element which, in the main flow direction of fumes and vapors, represents the first or the last layer through the filter element.
  • the first position in the flow direction is also referred to below as the inflow side of the grease filter element.
  • the last layer is also referred to as the clean air side of the grease filter element.
  • the inflow side is thus the side of the fat filter element, which is the first of contaminated fumes and vapors flows when operating the hood.
  • the clean air side is the side of the grease filter element through which the purified air leaves the grease filter element.
  • the cover layers of the fat filter element according to the invention have openings through which air can enter the interior of the fat filter element and exit from the interior of the fat filter element.
  • a filling of the fat filter element is called, which covers the surface of the cover layers at least partially.
  • the filler completely covers at least the surface of the cover layer on the upstream side.
  • the filler of a different material than the cover layer a number of advantages can be achieved.
  • the material of the filler can be selected so that it has a lower specific weight than the material of the cover layer.
  • the filler is exposed to the fat filter element according to the invention no mechanical stress, since it is held by the cover layers.
  • the shape of the filler can therefore be selected according to fluidic aspects.
  • the fat filter element according to the invention represents a filter cartridge, wherein the two cover layers in a frame, for example made of aluminum.
  • the two cover layers which are designed flat, thus form together with the frame an interior in which the filler can be introduced.
  • plastic particles as fillers in the fat filter element according to the invention, a number of advantages can be achieved.
  • the specific weight of plastic is low, so that in this way the total weight of the fat filter element is reduced.
  • plastic can be made in a cost effective manner in particulate form.
  • plastic has the advantage that this fat and liquid particles can bind.
  • bound or adhering to the particles fat and liquid particles can be easily solved by the plastic again.
  • plastic particles can be cleaned by simply washing or rinsing in a dishwasher of grease and other contaminant particles.
  • the filler which consists of plastic particles, can thus be regenerated in the dishwasher. This is advantageous over other filter materials, such as activated carbon, where the regeneration usually has to be done by consuming processes.
  • the surface in the fat filter element, where fat particles and other impurities can be deposited is maximized.
  • various types of plastic particles in particular different materials or shapes can be mixed together.
  • the material of the filler is highly polar, as this can maximize the binding of fat and oil to the particles.
  • the cover layer may be a perforated plate or an expanded metal layer.
  • This type of cover layer can be used both on the upstream side and on the clean air side.
  • expanded metal sheet a layer in which the openings are obtained by stretching a slotted sheet
  • expanded metal sheet a layer in which the openings are obtained by stretching a slotted sheet
  • a close-meshed expanded metal is used, in which the mesh size can be 3 or 4 mm, for example.
  • the holes are preferably introduced by punching in a sheet.
  • the perforated plate and the expanded metal may for example consist of aluminum or stainless steel.
  • the filler is in the form of a bed.
  • a bed is here understood to mean a layer of loose particles which are not connected or fastened to one another.
  • filter mats which are made of fleece for example
  • a bed of particles on the one hand the surface on which impurities can be deposited is maximized.
  • a bed usually allows a certain movement of the particles relative to each other, which is particularly advantageous for the regeneration or cleaning of the grease filter element.
  • plastic particles of polycarbonate, polyamide or polybutylene terephthalate (PBT) can be used.
  • the filler consists of a spherical material. Due to this shape of the plastic particles, the space formed between the cover layers can be optimally filled and thereby the largest possible surface area for the deposition of impurities can be created.
  • particle shapes such as oval, square or other - even irregular - geometries are possible according to the invention.
  • the size of the particles of the filler is selected to be low, as this can improve the degree of greasing.
  • the particles may have a size in the range of 3mm to 1cm.
  • the smallest particle size of the particles is determined by the size of the openings in the cover layers.
  • the largest size is limited by the height of the frame, which in turn is determined by the dimensions of the extractor hood on the suction opening and the fastening means on the suction opening.
  • the filter element has a height or thickness of 6 to 20mm. With this height, the filter element according to the invention can be used in known extractor hoods as a replacement for filter cartridges, which consist exclusively of expanded metal layers, without a change to the hood is required.
  • the fat filter element according to the invention also to increase the filter usable area.
  • the filter useful area is the size of the area on the upstream side. Due to the filling of the filter element with particles different shapes of filter elements can be easily filled with them.
  • the cover layers each have a shell shape, wherein the two shells are set with the same orientation. As a result, the filter is given the shape of a spherical section.
  • the use of corrugated cover layers is possible, the valleys and elevations of the waves of the two cover layers are aligned with each other. As a result, a constant thickness of the filter element is ensured over its surface despite the increased filter effective area and a passage of unpurified air, which is also referred to as leakage, can be prevented.
  • the particle size of the filler decreases to a clean air side of the grease filter element.
  • the density of the plastic particles can be increased to the clean air side.
  • the filter is compacted on this side and continue to ensure the reliable cleaning of the fumes and vapors.
  • the decrease in the particle size can be continuous, wherein in the production, for example, in each case a layer of a first larger and then a layer of a smaller particle size are poured.
  • the particles of different sizes are mixed and thus a continuous transition of the particle size.
  • the at least one stabilizing device is at an angle of more than zero degrees to at least one cover layer.
  • the so aligned stabilizers are also referred to as webs.
  • the webs are arranged in a direction which differs from the direction of the cover layer, the webs can protrude into the space between the two cover layers. Since in this space according to the invention, the filler is provided, limit the webs in this embodiment, the movement of the filler in the direction parallel to the surface of the cover layers.
  • the webs may be provided on the upper side of the cover layer on the inflow side and / or on the underside of the cover layer on the clean air side of the filter element.
  • the webs may be attached to the cover sheet or layers.
  • the webs are separate to the cover layers and, for example, form a three-dimensional structure, such as a grid, which can be placed between the cover layers and optionally held by a frame of the filter element.
  • the webs are formed over at least part of the depth of the intermediate space of the filter element, that is, the distance between the two cover layers, chambers. If the webs extend over the entire depth of the interstice of the filter element, the chambers are closed to the sides and the filling material can move only within the respective chamber. If the height of the webs hung less than the depth of the gap, then the movement in the direction parallel to the topsheet is impeded only over part of the depth of the gap, the filler but can pass from one chamber so formed into another chamber.
  • the filter element has a round shape in plan view.
  • the vertical view of the filter element on the clean air side or on the inflow side is referred to as top view.
  • a round shape a shape is referred to, whose surface is bounded by a boundary line, which preferably has no corners.
  • a shape is designated as a round shape, in which the boundary line has over its course only direction changes of greater than 90 degrees. The direction changes are indicated by the internal angle of the change in direction.
  • the round shape may therefore be, for example, a rectangle with rounded corners, a polygon with more than four corners, for example a hexagon or octagon, or be an oval.
  • the shape of the filter element which is usually formed by the cover layers and an optionally provided frame, also defines the shape of the interspace of the filter element.
  • the gap can be reliably filled with filler. For pointed or rectangular corners, such filling is difficult because the particles of the filler may not be able to get into the corner. In this case, therefore, the air flows through the filter element without being cleaned to become. Due to the preferred, round shape of the filter element such undesirable passage can be avoided.
  • the filter element has a circular shape in plan view.
  • the already mentioned advantage of preventing leaks due to the fact that no corners are provided is also achieved.
  • the leakage at the corners can be ensured even with a larger particle size of the filler.
  • Another advantage of the circular shape is that the filter element in this embodiment has no concrete mounting position, that is, the filter element can be introduced in different angular positions in a likewise circular intake of the hood, whereby the assembly is facilitated.
  • other fastening devices for holding the filter element to the extractor hood can be used in a circular filter element.
  • a bayonet lock can be used.
  • the filter element can be attached by a rotary movement with optionally additional plugging movement on the hood.
  • the stabilizers provided in the space between the topsheets form a grid.
  • the grid in which at least two stabilizing devices intersect at least in their extension.
  • the stabilizing devices in this embodiment preferably represent webs which, as defined above, project from at least one of the cover layers into the intermediate space of the filter element.
  • the grid may in this embodiment be formed for example by two groups of webs, wherein the webs of each of the groups are parallel to each other and the webs of the first group and the webs of the second group, for example, perpendicular to each other.
  • Other forms of gratings can also be used according to the invention.
  • a grid may be used whose chambers have a honeycomb shape, ie hexagonal shape or an octagonal shape.
  • the at least one stabilizer device is arranged radially.
  • the stabilizers are formed by webs. These webs extend radially from one point.
  • This embodiment is particularly advantageous for a circular filter element.
  • the point from which the webs extend is the center of the circle.
  • the webs preferably do not extend to the center in such a radial arrangement, but end at a distance therefrom.
  • the webs terminate at a distance, so that even at these locations no acute angle between the outer wall, which is formed for example by a frame, and the webs are formed.
  • the length of the webs in the radial direction can be the same for all webs. But it is also possible that some of the bars are longer than the other bars.
  • the filler is doped.
  • doping in particular a surface treatment of the particles of the filler is understood. This can be, for example, the introduction or introduction of means for increasing hygiene, that is to say sterilization of the particles.
  • agents that contain or generate odors may also be used.
  • the plastic particles may be doped with potassium permanganate or silver.
  • the present invention relates to an extractor hood, which has a suction opening for sucking in fumes and vapors.
  • the extractor hood is characterized in that at least one inventive grease filter element is provided in the suction opening of the extractor hood.
  • the suction opening may be rectangular or round in the extractor hood according to the invention.
  • a filter element with a circular shape can be used.
  • the attachment of the filter element to the hood can be done for example by a bayonet lock.
  • pins may be provided on the filter element, which extend from the periphery thereof to the outside.
  • recesses or grooves may be provided in the periphery of the filter element, in which pins of a closure provided on the extractor hood can engage.
  • the attachment by means of bayonet lock has the advantage that it can be easily solved but still ensures a reliable hold of the filter element to the hood.
  • FIG. 1 shows a first embodiment of the fat filter element 1 according to the invention, which is also referred to below as a filter element.
  • the filter element 1 represents a filter cartridge.
  • a frame 12 which surrounds all lateral edges of the filter element 1, in this case a lower cover layer 10 is held on the inflow side of the filter element 1.
  • the cover layer 10 consists in the illustrated embodiment of a flat expanded metal layer.
  • filler is provided which consists of round Greffenpismen 13 in the illustrated embodiment.
  • the filler particles 13 are tightly packed and completely fill the interior of the filter element 1 which is bounded laterally by the frame 12.
  • an upper cover layer 11 is provided, which also represents a flat expanded metal layer in the illustrated embodiment. These, provided on the clean air side of the filter element 1, cover layer 11 is held in the frame 12.
  • FIG. 1 are shown by dashed lines also stabilizing devices 14 in the form of webs, which may be provided in the filter element 1.
  • the webs are perpendicular to the cover layers 10, 11 and have a height corresponding to the distance between the two cover layers 10, 11.
  • two webs are provided so that in the interior of the filter element 1, three chambers are formed, in which the filler is added.
  • the filler particles 13 of the first embodiment have, in the illustrated embodiment, apart from tolerances that are production-related, all the same size. It is understood that the shape of the particles 13 may also differ from a spherical shape. The particles 13 may, for example, also be egg-shaped or present as grains having irregular shapes. A mixture of different forms of particles 13 can also be used as filler.
  • FIG. 2 shows The construction of this second embodiment of the filter element 1 essentially corresponds to that in FIG FIG. 1 shown construction.
  • flat cover layers 10 and 11 are provided from expanded metal and the cover layers 10 and 11 and the filler provided therebetween are held by a frame 12.
  • 10 particles 13 of a certain size are provided in a first layer on the lower cover layer.
  • On this first layer is another layer of particles 13 of smaller size.
  • the particle size thus decreases at the in FIG. 2 shown embodiment of layer to layer, so that on the clean air side, the particles 13 are present with the smallest particle size.
  • FIG. 3 a further embodiment of the filter element 1 according to the invention is shown.
  • the cover layers 10 and 11 not configured flat.
  • the cover layers 10 and 11 rather have a waveform.
  • the waves of the two cover layers 10 and 11 are so aligned with each other so that the thickness of the filter element 1 over its surface is constant that is constant.
  • corrugated cover layers 10 and 11 are added.
  • the particles 13 fill the limited by the frame 12 and the cover layers 10 and 11 interior of the filter element 1 completely.
  • FIG. 4 is a schematic plan view of an embodiment of the filter element 1 according to the invention shown.
  • the cover layer is recessed to allow the view of the interior of the filter element 1.
  • a grid of stabilizers 14 in the form of webs is provided in this embodiment. Through the grid chambers are formed, in which the Greffenpgreg 13 are held. In FIG. 4 If the filler particles 13 are shown only in one chamber, they are also present in the other chambers.
  • FIG. 5 an embodiment of the extractor hood 20 according to the invention is shown.
  • the housing 21 of the extractor hood 20 and the filter element 1 are shown.
  • the extractor hood 20 includes other components, such as a fan and the like.
  • the housing 21 extractor hood 20 comprises in the illustrated embodiment, a viewing hood 22, which has a roof shape in the illustrated embodiment, and a lower cover 23 of the viewing hood 22.
  • the suction port 24 of the extractor hood 20 is provided, can enter via the steam and fumes into the interior of the hood 20, in particular into the interior of the viewing hood 22 and then exit via an air outlet from the hood 20.
  • the suction opening 24 has a circular cross-section in the illustrated embodiment.
  • the suction port 24 is provided in the rear region of the lower cover 23.
  • a filter element 1 is introduced in the suction port 24 in the suction port 24, a filter element 1 is introduced.
  • the filter element 1 is connected by a bayonet lock 25 to the extractor hood 20, in particular at the intake opening 24 attached.
  • the filter element 1 also has a circular shape.
  • the lower cover layer of the filter element 1 is not shown to allow the view of the interior of the filter element 1.
  • stabilizing devices 14 are provided in the form of webs in the filter element. The webs are arranged radially to the center of the filter element 1 in this embodiment.
  • the stabilizers 14 terminate in the illustrated embodiment to the edge of the filter element 1 and the center of the filter element 1 at a distance.
  • the webs have different lengths. But it is also possible to use webs with the same length.
  • the filler particles 13, which are provided in the filter element 1 between the stabilizers 14, are in the FIG. 6 Not shown.
  • the present invention provides a new and cost effective solution for filter elements that includes a special construction of the filter elements and can serve as an alternative technology to previous complex solution systems.
  • the filter element according to the invention there are no delivery volume losses of hoods with higher delivery rates.
  • a high Fettabscheidungsgrad can be achieved.
  • the extraction behavior remains noticeably good for the customer.
  • Optimal flow velocity profiles can be achieved.
  • the weight of the filter is low.
  • different types of granules can be mixed.
  • chemical functions can be integrated, so in addition to the pure mechanical deposition of fat and a chemical deposition by a suitable choice of Materials for the filler or by treatment of the filler can be achieved. A compaction of different granule layers is possible. There is no impairment of the vapor capture rate.
  • the filter is quickly converted to other granules.
  • the present invention brings a significant benefit for customer service, since the filter according to the invention represents an effective retrofit filter.
  • the filter usage area can be set large, which results in a longevity of the filter.
  • the filter material can be doped with pleasant odors.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Filtering Materials (AREA)

Claims (15)

  1. Élément de filtre à graisse pour une hotte aspirante, l'élément de filtre à graisse (1) présentant deux couches de recouvrement (10, 11) et une matière de remplissage étant disposée entre les couches de recouvrement (10, 11) sous forme d'une masse en vrac, caractérisé en ce que la matière de remplissage est constituée de particules en matière plastique (13).
  2. Élément de filtre à graisse selon la revendication 1, caractérisé en ce que la couche de recouvrement (10, 11) représente une tôle perforée ou une couche de métal déployé.
  3. Élément de filtre à graisse selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que la matière de remplissage représente un granulé.
  4. Élément de filtre à graisse selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la matière de remplissage est constituée de matière plastique, notamment de polycarbonate, de polyamide ou de PBT.
  5. Élément de filtre à graisse selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la matière de remplissage est constituée d'une matière sphérique.
  6. Élément de filtre à graisse selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la taille de particule de la matière de remplissage diminue vers un côté d'air pur de l'élément de filtre à graisse (1).
  7. Élément de filtre à graisse selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'au moins un dispositif de stabilisation (14) est ménagé dans l'élément de filtre à graisse pour fixer la matière de remplissage.
  8. Élément de filtre à graisse selon la revendication 7, caractérisé en ce que l'au moins un dispositif de stabilisation (14) est placé dans un angle de plus de zéro degré par rapport à au moins une couche de recouvrement (10, 11).
  9. Élément de filtre à graisse selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'élément de filtre de graisse (1) présente une forme ronde en vue de dessus.
  10. Élément de filtre à graisse selon la revendication 9, caractérisé en ce que l'élément de filtre de graisse (1) présente une forme circulaire en vue de dessus.
  11. Élément de filtre à graisse selon l'une quelconque des revendications 7 à 10, caractérisé en ce que les dispositifs de stabilisation (14) forment une grille.
  12. Élément de filtre à graisse selon l'une quelconque des revendications 7 à 11, caractérisé en ce que l'au moins un dispositif de stabilisation (14) est disposé radialement.
  13. Élément de filtre à graisse selon l'une quelconque des revendications 1 à 12, caractérisé en ce que la matière de remplissage est dotée.
  14. Hotte aspirante qui présente une ouverture d'aspiration (24) destinée à aspirer des vapeurs et des buées, caractérisée en ce qu'au moins un élément de filtre à graisse (1) selon l'une quelconque des revendications 1 à 13 est ménagé dans l'ouverture d'aspiration (24).
  15. Hotte aspirante selon la revendication 14, caractérisée en ce que l'élément de filtre à graisse (1) est fixé sur la hotte aspirante (20) par l'intermédiaire d'une fermeture à baïonnette.
EP11160109.2A 2010-03-29 2011-03-29 Filtre à graisse pour une hotte aspirante et hotte aspirante Active EP2372255B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201010003383 DE102010003383A1 (de) 2010-03-29 2010-03-29 Fettfilterelement für eine Dunstabzugshaube und eine Dunstabzugshaube

Publications (3)

Publication Number Publication Date
EP2372255A2 EP2372255A2 (fr) 2011-10-05
EP2372255A3 EP2372255A3 (fr) 2012-09-05
EP2372255B1 true EP2372255B1 (fr) 2015-12-16

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EP11160109.2A Active EP2372255B1 (fr) 2010-03-29 2011-03-29 Filtre à graisse pour une hotte aspirante et hotte aspirante

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Country Link
EP (1) EP2372255B1 (fr)
DE (1) DE102010003383A1 (fr)
ES (1) ES2557458T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202014101065U1 (de) * 2014-03-10 2015-06-12 BÄ*RO GmbH & Co. KG Schüttgutrahmen mit Ton Granulat

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE2422574A1 (de) * 1974-05-09 1975-11-20 Collo Gmbh Schuettstoff-filtermaterial, insbesondere zur entfernung unangenehmer gerueche aus der luft, sowie verfahren zu seiner herstellung

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Publication number Priority date Publication date Assignee Title
US2978064A (en) * 1959-02-19 1961-04-04 Do More Products Corp Gas purifier
DE2748439A1 (de) * 1976-11-02 1978-05-03 Engelbert Ing Sonnleitner Dunstabzugshaube o.dgl.
DE2826237C2 (de) * 1978-06-15 1981-11-19 Riensch & Held, 2000 Hamburg Fettfilter, insbesondere für Dunstabzughauben
DE8805324U1 (de) * 1988-04-21 1988-07-07 Bürcher-Siegrist, Rosmarie, 8029 Sauerlach Strömungsmedium-Filter
DE3813563C2 (de) * 1988-04-22 2002-01-17 Mhb Filtration Gmbh & Co Kg Adsorptionsfilter mit hoher Luftdurchlässigkeit
US4923725A (en) * 1988-07-29 1990-05-08 E. I. Du Pont De Nemours And Company Article for absorbing cooking grease
DE69940137D1 (de) * 1998-05-08 2009-02-05 Toyo Boseki Blattförmiges Adsorptionsmittel für Gase und Luftreinigungsfilter
DE19962253A1 (de) * 1999-12-22 2001-09-13 Bsh Bosch Siemens Hausgeraete Filterkassette für Dunstabzugsvorrichtungen
US7041159B2 (en) * 2003-08-04 2006-05-09 Phillips Plastics Corporation Separation apparatus
DE20209792U1 (de) * 2002-06-24 2002-09-26 Klinger, Werner, 32351 Stemwede Filtereinrichtung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2422574A1 (de) * 1974-05-09 1975-11-20 Collo Gmbh Schuettstoff-filtermaterial, insbesondere zur entfernung unangenehmer gerueche aus der luft, sowie verfahren zu seiner herstellung

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Publication number Publication date
EP2372255A3 (fr) 2012-09-05
EP2372255A2 (fr) 2011-10-05
ES2557458T3 (es) 2016-01-26
DE102010003383A1 (de) 2011-09-29

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