EP0612962B1 - Fume extracting hood, in particular for large-scale kitchens - Google Patents

Fume extracting hood, in particular for large-scale kitchens Download PDF

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Publication number
EP0612962B1
EP0612962B1 EP93102796A EP93102796A EP0612962B1 EP 0612962 B1 EP0612962 B1 EP 0612962B1 EP 93102796 A EP93102796 A EP 93102796A EP 93102796 A EP93102796 A EP 93102796A EP 0612962 B1 EP0612962 B1 EP 0612962B1
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EP
European Patent Office
Prior art keywords
extractor hood
hood according
intake opening
shutter carrier
grease
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP93102796A
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German (de)
French (fr)
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EP0612962A1 (en
Inventor
Gert Stegmaier
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Maimer GmbH
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Maimer GmbH
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Publication date
Priority to EP93102796A priority Critical patent/EP0612962B1/en
Priority to DK93102796.5T priority patent/DK0612962T3/en
Priority to AT93102796T priority patent/ATE117422T1/en
Priority to ES93102796T priority patent/ES2067338T3/en
Priority to DE59300064T priority patent/DE59300064D1/en
Application filed by Maimer GmbH filed Critical Maimer GmbH
Priority to US08/198,910 priority patent/US5394861A/en
Priority to JP6025640A priority patent/JPH06300336A/en
Publication of EP0612962A1 publication Critical patent/EP0612962A1/en
Application granted granted Critical
Publication of EP0612962B1 publication Critical patent/EP0612962B1/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/36—Kitchen hoods

Definitions

  • the invention relates to an extractor hood, in particular for use in commercial kitchens, consisting of a plurality of grease separating cells arranged next to one another, each of which has a vapor collection space that is open at the bottom and into which an intake opening connected to an exhaust air duct opens, with an intake opening between the intake opening and the exhaust air duct Grease filter is arranged.
  • the vapors and vapors (latent heat) and heat (sensitive heat) generated during the cooking process must be removed or compensated for by a suitable ventilation system.
  • the aim of this measure is that a certain temperature and humidity in the kitchen are not exceeded.
  • the kitchen is usually operated with an appropriate air change, in which fresh outside air is introduced into the kitchen and the kitchen air, which is contaminated by heat and steam, is extracted again.
  • cooking devices When calculating the amount of air required for air circulation, it must be taken into account that, on the one hand, cooking devices are used which generate a great deal of water vapor, that is to say latent heat, which include, for example, kettles, fryers and water baths. On the other hand, cooking devices are used which mainly emit radiant heat or convection heat, i.e. sensitive heat, which include, for example, grilling plates, tilting frying pans and cookers. The type of heat that requires the higher air volume then determines the amount of air that is actually to be circulated, since the other type of heat is also included.
  • the invention has for its object to provide an extractor hood of the type mentioned, which allows it to be quickly and easily adjusted and adapted to different operating conditions in order to achieve economical operation with high efficiency, while at the same time a high degree of grease separation in the filter ensured and easy cleaning and maintenance should be guaranteed.
  • the grease separating cells have a blind support in the area of the suction opening
  • the blind support for all grease trap cells are jointly adjustable essentially transversely to the suction opening and are set up for connecting closure panels which can be adjusted by the blind carrier into a position that releases the suction opening or into a position that closes the suction opening.
  • the advantage achieved by the invention consists first of all in that individual fat separation cells, namely those provided with a closure panel, can be excluded from the air circulation. This makes it possible to reduce the total air conversion without reducing the flow rate in the fat filter of those fat separating cells in which no shutters are provided. It is possible to attach the shutters in the areas of the extractor hood, where generally less air exchange is required anyway. It is therefore not only possible to make a simple adaptation to summer or winter operation, but also to take into account that the accumulation of latent or sensitive heat in normal kitchen operation is different in different areas of the extractor hood. In addition, however, there is also the possibility of achieving an optimal air circulation adapted to the distribution of the cooking appliances when the work processes and thus the arrangement of the different cooking appliances are changed by simply converting the closure panels.
  • a chamber separated by a striking plate for receiving the Blind support and drive means for the blind support is provided.
  • the drive means in particular are protected from contamination by grease and the like.
  • the striking plate is advantageously provided with a slot recess for the passage of the closure panel.
  • the closure panel carries a sealing strip on its edge facing away from the blind carrier. It is advantageous if the sealing strip on its side facing the blind carrier has a width corresponding to the slot recess in the striking plate. It is therefore possible to either place the sealing strip on the closure panel or, if no closure panel is connected to the blind carrier in the grease separating cell, to insert the sealing strip into the slot recess, so that the chamber is sealed with the drive means.
  • the blind carrier is expediently designed as a one-piece profile strip which extends through all the grease separating cells.
  • the blind carrier is expediently guided in guide rails at the ends in each case.
  • the blind carrier can be connected to a chain hoist, which runs over a chain wheel and projects with its free end through an opening in the striking plate into the haze collecting space for adjusting the closure panels.
  • the Blind carrier is connected to an electromechanically adjustable rotating spindle.
  • linear stroke motors can also be provided for adjusting the blind support.
  • a particularly simple embodiment which is therefore preferred within the scope of the invention, provides that rotary motors with an eccentric are provided for adjusting the blind support.
  • the grease filter is advantageously formed by a cassette, the end face protruding into the vapor collection space forms the suction opening and on the side opposite the suction opening there is an air outlet opening that is open towards the exhaust air duct, baffle plates interlocking between the suction opening and the air outlet opening. These baffles form a baffle for the air flowing through and ensure effective separation of the grease contained in the air.
  • the cassette expediently consists of an open top, otherwise sealed bottom part, which is closed by a detachably attached lid, the baffle plates being connected alternately to the bottom part and the lid in the flow direction of the exhaust air. This makes it possible to open the cassette easily and to clean it in a dishwasher.
  • the baffle plates have a V-shaped cross-section, the two legs of the baffle plates arranged in the lower part being tightly welded along their entire circumference to the bottom or to the side walls of the bottom part. This means that grease can only settle in the easily accessible areas of the base part, so that complete and effective cleaning is possible.
  • the end face of the cassette provided with the suction opening is angular in cross-section, the lower region adjoining the bottom being closed and carrying a grip part for removing the cassette, while the upper region forms the suction opening. Because of the smaller width of the suction opening, a smaller adjustment stroke of the shutters is sufficient to completely close the suction opening.
  • a lighting strip is provided both in the front and in the rear area of the extractor hood, which is formed by fat-tight lighting chambers closed by glued-in safety glass, in which fluorescent tubes are arranged.
  • the extractor hood shown in the drawing is in particular intended for use in commercial kitchens and consists of several grease separating cells 1 arranged next to one another.
  • the grease separating cells 1 each have a fume collecting space 2 which is open at the bottom and into which a suction opening 4 connected to an exhaust air duct 3 opens .
  • a grease filter 5 is arranged between the suction opening 4 and the exhaust air duct 3, above which there is a vacuum chamber 6.
  • the fat separation cells 1 have a blind support 7 in the area of the suction opening 4, the blind support 7 for all fat separation cells 1 being jointly adjustable essentially transversely to the suction opening 4. Furthermore, the Venetian blind support 7 is set up for the connection of shutters 8, which can be adjusted by the Venetian blind support 7 into a position that releases the suction opening 4 or into a position that tightly closes the suction opening 4.
  • the individual shutters 8 can, if necessary, be connected in the fat separating cells 1 on the blind support 7, in which, under certain conditions, no or only small amounts of exhaust air occur at least temporarily. This depends on the one hand on the arrangement of the heating and cooking appliances arranged in the extractor hood, and on the other hand on winter or summer operation.
  • a chamber 10, separated by a striking plate 9, is provided for receiving the blind carrier 7 and drive means for the blind carrier 7.
  • the striking plate 9 is provided with a slot recess 12 for the passage of the closure panel 8.
  • the closure panel 8 carries on its edge facing away from the blind carrier 7 a sealing strip 13 in order to achieve a complete closing of the suction opening 4. This ensures that no air can flow through the grease filter 5 at such a low flow rate, in which no more grease separation takes place.
  • the sealing strip 13 can be designed so that it has on its side facing the blind carrier 7 one of the slot recess 12 in the striking plate 9 width, so that the sealing strip 13 can be used to seal the slot recess 12 when the shutter 8 is not mounted.
  • the Venetian blind support 7 is designed as a one-piece profile strip, which extends through all the grease separating cells 1.
  • the blind carrier 7 is guided at the ends in guide rails.
  • the blind carrier 7 is connected to a chain hoist 14, which runs over a chain wheel 15 and projects with its free end through an opening in the striking plate 9 into the haze collecting space 2 for adjusting the closure panels 8.
  • the shutter support 7 can also be used to enable automatic adjustment, in particular be connected to an electromechanically adjustable rotary spindle in a manner not shown in the drawing.
  • FIG. 6 there is the possibility shown in FIG. 6 to provide linear stroke motors 16 for adjusting the blind support 7.
  • FIG. 1 of providing 7 rotary motors 17 with an eccentric 18 for adjusting the Venetian blind support, a corresponding reduction gear being arranged between the motor 17 and the eccentric 18.
  • the grease filter 5 is formed by a cassette, the end face of which protrudes into the vapor collection space forms the suction opening 4.
  • an air outlet opening 19 open to the exhaust air duct 3 is provided on the side of the cassette opposite the suction opening 4.
  • baffle plates 20 which interlock like teeth and which deflect the air flow several times and thereby cause the grease contained in the air to separate.
  • the cassette consists in particular of an open top, otherwise sealed bottom part, which is closed by a detachably attached lid.
  • the baffle plates 20 are alternately connected to the bottom part and the lid in the flow direction of the exhaust air.
  • the baffle plates 20 have a V-shaped cross-section, the two legs being arranged in the base part
  • Baffle plates 20 are tightly welded along their entire circumference on the floor or on the side walls of the bottom part. This ensures that no grease can penetrate into the cavity between the two legs of the baffle plates 20, which fat could be removed only with difficulty by conventional cleaning processes.
  • the baffles are completely open on the front, so they can be easily cleaned. In addition, this construction enables the cassette to be easily cleaned in a conventional dishwasher after opening.
  • the end face of the cassette provided with the suction opening 4 is, as shown in FIG. 1, angular in cross section.
  • the lower area adjoining the floor is closed and carries a handle part 21 for removing the cassette.
  • the upper area which is therefore only of lower height, forms the suction opening 4, the smaller width of which makes a smaller adjustment stroke of the closure panel 8 necessary and thus enables a lower overall height of the extractor hood.
  • a lighting band is provided both in the front and in the rear area of the extractor hood, which is formed by fat-tight lighting chambers 23, which are closed by glued-in safety glass 22 and in which fluorescent tubes 24 are arranged.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Superstructure Of Vehicle (AREA)
  • Separating Particles In Gases By Inertia (AREA)
  • Fats And Perfumes (AREA)

Abstract

The fume extracting hood is intended in particular for use in large-scale kitchens and consists of a plurality of juxtaposed grease-trapping cells (1), each having a fume-collecting space (2) which is open at the bottom and into which leads an intake opening (4) which is connected to an exhaust air duct (3). A grease filter (5) is arranged between the intake opening (4) and the exhaust air duct (3). In the region of the intake opening (4), the grease-trapping cells (1) have a shutter carrier (7), the shutter carrier (7) being displaceable for all grease-trapping cells (1) together substantially transversely to the intake opening (4) and being adapted for the connection of closure covers (8). The closure covers (8) can be displaced by the shutter carrier (7) into a position freeing the intake opening (4) and into a position leaktightly closing the intake opening (4). <IMAGE>

Description

Die Erfindung betrifft eine Dunstabzugshaube, insbes. zum Einsatz in gewerblichen Küchen, bestehend aus mehreren, nebeneinander angeordneten Fettabscheidezellen, die jeweils einen nach unten hin offenen Dunstsammelraum aufweisen, in den eine mit einem Abluftkanal verbundene Ansaugöffnung mündet, wobei zwischen der Ansaugöffnung und dem Abluftkanal ein Fettfilter angeordnet ist.The invention relates to an extractor hood, in particular for use in commercial kitchens, consisting of a plurality of grease separating cells arranged next to one another, each of which has a vapor collection space that is open at the bottom and into which an intake opening connected to an exhaust air duct opens, with an intake opening between the intake opening and the exhaust air duct Grease filter is arranged.

In gewerblichen Großküchen muß der beim Kochbetrieb anfallende Wrasen und Dunst (latente Wärme) und die Wärme (sensible Wärme) durch eine geeignete Lüftungsanlage abtransportiert bzw. ausgeglichen werden. Ziel dieser Maßnahme ist, daß eine bestimmte Temperatur und Luftfeuchtigkeit in der Küche nicht überschritten werden.In commercial canteen kitchens, the vapors and vapors (latent heat) and heat (sensitive heat) generated during the cooking process must be removed or compensated for by a suitable ventilation system. The aim of this measure is that a certain temperature and humidity in the kitchen are not exceeded.

Hierzu wird die Küche üblicherweise mit einem entsprechenden Luftwechsel gefahren, bei welchem frische Außenluft in die Küche eingebracht und die durch Wärme und Dampf belastete Küchenluft wieder abgesaugt wird.For this purpose, the kitchen is usually operated with an appropriate air change, in which fresh outside air is introduced into the kitchen and the kitchen air, which is contaminated by heat and steam, is extracted again.

Während der Heizperiode muß die zugeführte Außenluft erwärmt werden, da es sonst zu unangenehmen Zugerscheinungen für das Küchenpersonal sowie zu Störungen des Kochprozesses kommen kann. Wegen der relativ hohen umzuwälzenden Luftmengen bedeutet dies einen hohen Aufwand an Heizenergie.During the heating period, the outside air supplied must be warmed up, as this can lead to unpleasant drafts for the kitchen staff as well as disruptions to the cooking process. Because of the relatively high volume of air to be circulated, this means a high expenditure of heating energy.

Bei der Berechnung der für die Luftumwälzung erforderlichen Luftmenge muß berücksichtigt werden, daß einerseits Kochgeräte im Einsatz sind, die sehr viel Wasserdampf, also latente Wärme erzeugen, zu denen beispielsweise Kochkessel, Friteusen und Wasserbäder gehören. Andererseits sind Kochgeräte im Einsatz, die vorwiegend Strahlungswärme oder Konvektionswärme, also sensible Wärme abgeben, zu denen beispielsweise Grillplatten, Kippbratpfannen und Herde zählen. Die Wärmeart, die den höheren Luftmengenbedarf erforderlich macht, bestimmt dann die tatsächlich umzuwälzende Luftmenge, da die jeweils andere Wärmeart darin mit beinhaltet ist.When calculating the amount of air required for air circulation, it must be taken into account that, on the one hand, cooking devices are used which generate a great deal of water vapor, that is to say latent heat, which include, for example, kettles, fryers and water baths. On the other hand, cooking devices are used which mainly emit radiant heat or convection heat, i.e. sensitive heat, which include, for example, grilling plates, tilting frying pans and cookers. The type of heat that requires the higher air volume then determines the amount of air that is actually to be circulated, since the other type of heat is also included.

Um die zur Erwärmung der kalten Zuluft benötigte Heizenergie gering zu halten, kommen zwei grundsätzlich unterschiedliche Maßnahmen zur Anwendung. Zum einen besteht die Möglichkeit, die in der Abluft enthaltene Wärme durch Wärmetauscher zu entziehen und an die zu erwärmende Zuluft zu übertragen. Nachteilig ist hierbei jedoch, daß der in der Abluft enthaltene Anteil an Restfett an den kalten Wärmeübertragerflächen zur Kondensation kommt, wodurch ein höherer Wartungsaufwand entsteht.In order to keep the heating energy required to heat the cold supply air low, two fundamentally different measures are used. On the one hand, there is the possibility of extracting the heat contained in the exhaust air by heat exchangers and transferring it to the supply air to be heated. The disadvantage here, however, is that the proportion contained in the exhaust air Residual grease condenses on the cold heat exchanger surfaces, which means higher maintenance costs.

Zum anderen sind sogennante Kurzschluß oder Induktionshauben im Einsatz, bei welchen ein Teil der Zuluft unaufgeheizt über eine Düse unmittelbar in den Dunstsammelraum eingeblasen und im Kurzschluß sofort wieder abgesaugt wird. Hierdurch wird erreicht, daß im Winterbetrieb, bei welchem weniger sensible Wärme abzuführen ist, dennoch eine ausreichend hohe Geschwindigkeit der das Fettfilter durchströmenden Luft erreicht wird, die notwendig ist, um den geforderten hohen Abscheidegrad an Fett zu erreichen. Nachteilig ist hierbei jedoch, daß die Einbringung von untemperierter Außenluft in die Küche und die Haube eine aufwendige Einregulierung des Luftstroms erforderlich macht, wobei dieser Luftstrom wiederum nicht dazu herangezogen werden kann, um eine Temperierung des Innenklimas in der Küche zu ermöglichen.On the other hand, so-called short-circuit or induction hoods are used, in which a part of the supply air is injected unheated via a nozzle directly into the vapor collection space and is immediately extracted again in the short-circuit. This ensures that in winter operation, in which less sensitive heat is to be dissipated, a sufficiently high speed of the air flowing through the grease filter is nevertheless achieved, which is necessary in order to achieve the required high degree of grease separation. The disadvantage here, however, is that the introduction of untempered outside air into the kitchen and the hood requires a complex adjustment of the air flow, this air flow in turn not being able to be used to enable the interior climate in the kitchen to be tempered.

Der Erfindung liegt die Aufgabe zugrunde, eine Dunstabzugshaube der eingangs genannten Art zu schaffen, die es erlaubt, auf unterschiedlichste Betriebsbedingungen schnell und einfach eingestellt und angepaßt werden zu können, um einen wirtschaftlichen Betrieb mit hohem Wirkungsgrad zu erreichen, wobei zugleich ein hoher Fettabscheidegrad im Filter sichergestellt und eine einfache Reinigung und Instandhaltung gewährleistet sein soll.The invention has for its object to provide an extractor hood of the type mentioned, which allows it to be quickly and easily adjusted and adapted to different operating conditions in order to achieve economical operation with high efficiency, while at the same time a high degree of grease separation in the filter ensured and easy cleaning and maintenance should be guaranteed.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß die Fettabscheidezellen im Bereich der Ansaugöffnung einen Jalousieträger aufweisen, wobei der Jalousieträger für alle Fettabscheidezellen gemeinsam im wesentlichen quer zur Ansaugöffnung verstellbar und zum Anschluß von Verschlußblenden eingerichtet ist, die durch den Jalousieträger in eine die Ansaugöffnung freigebende bzw. in eine die Ansaugöffnung dichtschließende Lage verstellbar sind.This object is achieved according to the invention in that the grease separating cells have a blind support in the area of the suction opening, the blind support for all grease trap cells are jointly adjustable essentially transversely to the suction opening and are set up for connecting closure panels which can be adjusted by the blind carrier into a position that releases the suction opening or into a position that closes the suction opening.

Der durch die Erfindung erreichte Vorteil besteht zunächst darin, daß einzelne, nämlich die mit einer Verschlußblende versehenen Fettabscheidezellen aus der Luftumwälzung ausgenommen werden können. Dies ermöglicht es, den Gesamtluftumsatz zu verringern, ohne daß die Strömungsgeschwindigkeit im Fettfilter derjenigen Fettabscheidezellen verringert wird, bei denen keine Verschlußblenden vorgesehen sind. Dabei besteht die Möglichkeit, die Verschlußblenden in den Bereichen der Dunstabzugshaube anzubringen, in denen in der Regel ein ohnehin geringerer Luftaustausch erforderlich ist. Es besteht somit nicht nur die Möglichkeit, eine einfache Anpassung an den Sommer bzw. Winterbetrieb vorzunehmen, sondern darüber hinaus zu berücksichtigen, daß der Anfall an latenter bzw. sensibler Wärme im üblichen Küchenbetrieb in verschiedenen Bereichen der Dunstabzugshaube unterschiedlich ist. Darüber hinaus besteht jedoch auch die Möglichkeit, bei einer Änderung der Arbeitsabläufe und damit einer geänderten Anordnung der verschiedenen Kochgeräte durch einfaches Umrüsten der Verschlußblenden wieder eine an die Verteilung der Kochgeräte angepaßte optimale Luftumwälzung zu erreichen.The advantage achieved by the invention consists first of all in that individual fat separation cells, namely those provided with a closure panel, can be excluded from the air circulation. This makes it possible to reduce the total air conversion without reducing the flow rate in the fat filter of those fat separating cells in which no shutters are provided. It is possible to attach the shutters in the areas of the extractor hood, where generally less air exchange is required anyway. It is therefore not only possible to make a simple adaptation to summer or winter operation, but also to take into account that the accumulation of latent or sensitive heat in normal kitchen operation is different in different areas of the extractor hood. In addition, however, there is also the possibility of achieving an optimal air circulation adapted to the distribution of the cooking appliances when the work processes and thus the arrangement of the different cooking appliances are changed by simply converting the closure panels.

In bevorzugter Ausführungsform der Erfindung ist vorgesehen, daß oberhalb des Dunstsammelraums eine durch ein Schließblech abgetrennte Kammer zur Aufnahme des Jalousieträgers sowie von Antriebsmitteln für den Jalousieträger vorgesehen ist. Dadurch sind insbes. die Antriebsmittel vor einer Verschmutzung durch Fett und dergl. geschützt. Das Schließblech ist vorteilhafterweise mit einer Schlitzausnehmung für den Durchtritt der Verschlußblende versehen.In a preferred embodiment of the invention it is provided that a chamber separated by a striking plate for receiving the Blind support and drive means for the blind support is provided. As a result, the drive means in particular are protected from contamination by grease and the like. The striking plate is advantageously provided with a slot recess for the passage of the closure panel.

Um eine möglichst vollständige Abdichtung der Ansaugöffnung zu erreichen, ist vorgesehen, daß die Verschlußblende an ihrem dem Jalousieträger abgewandten Rand eine Dichtleiste trägt. Dabei ist es von Vorteil, wenn die Dichtleiste an ihrer zum Jalousieträger weisenden Seite eine der Schlitzausnehmung im Schließblech entsprechende Breite aufweist. Es besteht somit die Möglichkeit, die Dichtleiste entweder auf die Verschlußblende aufzusetzen oder aber, soweit in der Fettabscheidezelle keine Verschlußblende am Jalousieträger angeschlossen ist, die Dichtleiste in die Schlitzausnehmung einzusetzen, so daß die Kammer mit den Antriebsmitteln abgedichtet ist.In order to achieve the most complete possible sealing of the suction opening, it is provided that the closure panel carries a sealing strip on its edge facing away from the blind carrier. It is advantageous if the sealing strip on its side facing the blind carrier has a width corresponding to the slot recess in the striking plate. It is therefore possible to either place the sealing strip on the closure panel or, if no closure panel is connected to the blind carrier in the grease separating cell, to insert the sealing strip into the slot recess, so that the chamber is sealed with the drive means.

Der Jalousieträger ist zweckmäßigerweise als einstückige Profilleiste ausgebildet, die sich durch alle Fettabscheidezellen hindurch erstreckt. Dabei ist der Jalousieträger zweckmäßigerweise jeweils endseitig in Führungsschienen geführt.The blind carrier is expediently designed as a one-piece profile strip which extends through all the grease separating cells. The blind carrier is expediently guided in guide rails at the ends in each case.

In einer besonders einfachen Ausführungsform der Erfindung kann der Jalousieträger an einen Kettenzug angeschlossen sein, der über ein Kettenrad abläuft und zur Verstellung der Verschlußblenden mit seinem freien Ende durch eine Öffnung im Schließblech in den Dunstsammelraum vorsteht. Ebenso besteht jedoch auch die Möglichkeit, daß der Jalousieträger an eine elektromechanisch verstellbare Drehspindel angeschlossen ist. Weiter können zur Verstellung des Jalousieträgers ebenso auch lineare Hub Motoren vorgesehen sein. Eine besonders einfache und daher im Rahmen der Erfindung bevorzugte Ausführungsform sieht vor, daß zur Verstellung des Jalousieträgers Drehmotoren mit einem Exzenter vorgesehen sind.In a particularly simple embodiment of the invention, the blind carrier can be connected to a chain hoist, which runs over a chain wheel and projects with its free end through an opening in the striking plate into the haze collecting space for adjusting the closure panels. However, there is also the possibility that the Blind carrier is connected to an electromechanically adjustable rotating spindle. In addition, linear stroke motors can also be provided for adjusting the blind support. A particularly simple embodiment, which is therefore preferred within the scope of the invention, provides that rotary motors with an eccentric are provided for adjusting the blind support.

Das Fettfilter ist vorteilhafterweise von einer Kassette gebildet, deren in den Dunstsammelraum vorstehende Stirnseite die Ansaugöffnung bildet und an deren der Absaugöffnung gegenüber liegenden Seite eine zum Abluftkanal hin offene Luftaustrittsöffnung vorgesehen ist, wobei zwischen der Ansaugöffnung und der Luftaustrittsöffnung zahnartig ineinander greifende Prallbleche angeordnet sind. Diese Prallbleche bilden eine Schikane für die durchströmende Luft und sorgen für eine wirksame Abscheidung des in der Luft enthaltenen Fetts. Die Kassette besteht zweckmäßigerweise aus einem oben offenen, im übrigen dichten Bodenteil, das durch einen lösbar aufgesetzten Deckel geschlossen ist, wobei die Prallbleche in Strömungsrichtung der Abluft wechselweise am Bodenteil und am Deckel angeschlossen sind. Hierdurch besteht die Möglichkeit, die Kassette ohne weiteres zu öffnen und so in einer Spülmaschine zu reinigen.The grease filter is advantageously formed by a cassette, the end face protruding into the vapor collection space forms the suction opening and on the side opposite the suction opening there is an air outlet opening that is open towards the exhaust air duct, baffle plates interlocking between the suction opening and the air outlet opening. These baffles form a baffle for the air flowing through and ensure effective separation of the grease contained in the air. The cassette expediently consists of an open top, otherwise sealed bottom part, which is closed by a detachably attached lid, the baffle plates being connected alternately to the bottom part and the lid in the flow direction of the exhaust air. This makes it possible to open the cassette easily and to clean it in a dishwasher.

Die Prallbleche weisen im Querschnitt V förmige Gestalt auf, wobei die beiden Schenkel der im Unterteil angeordneten Prallbleche längs ihres gesamten Umfangs am Boden bzw. an den Seitenwänden des Bodenteils dicht verschweißt sind. Somit kann sich Fett lediglich in den leicht zugänglichen Bereichen des Bodenteils absetzen, so daß eine vollständige und wirksame Reinigung möglich ist.The baffle plates have a V-shaped cross-section, the two legs of the baffle plates arranged in the lower part being tightly welded along their entire circumference to the bottom or to the side walls of the bottom part. This means that grease can only settle in the easily accessible areas of the base part, so that complete and effective cleaning is possible.

Die mit der Ansaugöffnung versehene Stirnseite der Kassette ist im Querschnitt winklig ausgebildet, wobei der untere, an den Boden anschließende Bereich geschlossen ist und ein Griffteil zur Entnahme der Kassette trägt, während der obere Bereich die Ansaugöffnung bildet. Aufgrund der damit geringeren Breite der Ansaugöffnung genügt ein geringerer Verstellhub der Verschlußblenden, um die Ansaugöffnung vollständig zu schließen.The end face of the cassette provided with the suction opening is angular in cross-section, the lower region adjoining the bottom being closed and carrying a grip part for removing the cassette, while the upper region forms the suction opening. Because of the smaller width of the suction opening, a smaller adjustment stroke of the shutters is sufficient to completely close the suction opening.

Schließlich ist sowohl im vorderseitigen wie auch im rückseitigen Bereich der Dunstabzugshaube ein Beleuchtungsband vorgesehen, das von fettdichten, durch eingeklebtes Sicherheitsglas geschlossenen Beleuchtungskammern gebildet ist, in denen Leuchtstoffröhren angeordnet sind.Finally, a lighting strip is provided both in the front and in the rear area of the extractor hood, which is formed by fat-tight lighting chambers closed by glued-in safety glass, in which fluorescent tubes are arranged.

Im folgenden wird die Erfindung an in der Zeichnung dargestellten Ausführungsbeispielen näher erläutert; es zeigen:

Fig. 1
eine Dunstabzugshaube nach der Erfindung in Seitenansicht,
Fig. 2
den Gegenstand nach Fig. 1 in Stirnansicht von vorne,
Fig. 3 und 4
weitere Ausführungsformen mit anderen Fettfiltern,
Fig. 5 und 6
andere Ausführungsformen zur Verstellung der Verschlußblenden.
In the following the invention is explained in more detail using exemplary embodiments shown in the drawing; show it:
Fig. 1
an extractor hood according to the invention in side view,
Fig. 2
1 in front view,
3 and 4
further embodiments with other grease filters,
5 and 6
other embodiments for adjusting the shutters.

Die in der Zeichnung dargestellte Dunstabzugshaube ist insbes. zum Einsatz in gewerblichen Küchen vorgesehen und besteht aus mehreren, nebeneinander angeordneten Fettabscheidezellen 1. Die Fettabscheidezellen 1 weisen jeweils einen nach unten hin offenen Dunstsammelraum 2 auf, in den eine mit einem Abluftkanal 3 verbundene Ansaugöffnung 4 mündet. Zwischen der Ansaugöffnung 4 und dem Abluftkanal 3 ist ein Fettfilter 5 angeordnet, oberhalb dessen sich ein Unterdruckraum 6 befindet.The extractor hood shown in the drawing is in particular intended for use in commercial kitchens and consists of several grease separating cells 1 arranged next to one another. The grease separating cells 1 each have a fume collecting space 2 which is open at the bottom and into which a suction opening 4 connected to an exhaust air duct 3 opens . A grease filter 5 is arranged between the suction opening 4 and the exhaust air duct 3, above which there is a vacuum chamber 6.

Die Fettabscheidezellen 1 weisen im Bereich der Ansaugöffnung 4 einen Jalousieträger 7 auf, wobei der Jalousieträger 7 für alle Fettabscheidezellen 1 gemeinsam im wesentlichen quer zur Ansaugöffnung 4 verstellbar ist. Weiter ist der Jalousieträger 7 zum Anschluß von Verschlußblenden 8 eingerichtet, die durch den Jalousieträger 7 in eine die Ansaugöffnung 4 freigebende bzw. in eine die Ansaugöffnung 4 dichtschließende Lage verstellbar sind. Die einzelnen Verschlußblenden 8 können bedarfsweise in denjenigen Fettabscheidezellen 1 am Jalousieträger 7 angeschlossen werden, in denen unter bestimmten Bedingungen zumindest zeitweise keine oder aber nur geringere Mengen an Abluft anfallen. Dies hängt einerseits von der Anordnung der in der Dunstabzugshaube angeordneten Heiz und Kochgeräte ab, andererseits vom Winter bzw. Sommerbetrieb. Durch das Schließen der Ansaugöffnung 4 einzelner Fettabscheidezellen 1 wird erreicht, daß trotz einer Reduzierung der insgesamt abgeführten Abluft je Zeiteinheit eine ausreichend hohe Strömungsgeschwindigkeit der Luft durch die Fettfilter 5 der geöffneten Fettabscheidezellen 1 erreicht wird, so daß der geforderte Abscheidegrad von Fett im Fettfilter 5 gewährleistet ist.The fat separation cells 1 have a blind support 7 in the area of the suction opening 4, the blind support 7 for all fat separation cells 1 being jointly adjustable essentially transversely to the suction opening 4. Furthermore, the Venetian blind support 7 is set up for the connection of shutters 8, which can be adjusted by the Venetian blind support 7 into a position that releases the suction opening 4 or into a position that tightly closes the suction opening 4. The individual shutters 8 can, if necessary, be connected in the fat separating cells 1 on the blind support 7, in which, under certain conditions, no or only small amounts of exhaust air occur at least temporarily. This depends on the one hand on the arrangement of the heating and cooking appliances arranged in the extractor hood, and on the other hand on winter or summer operation. By closing the suction opening 4 of individual fat separating cells 1 it is achieved that, despite a reduction in the total exhaust air discharged per unit of time, a sufficiently high flow rate of the air through the fat filter 5 of the opened fat separating cells 1 is achieved, so that the required degree of separation of fat in the fat filter 5 is ensured is.

Oberhalb des Dunstsammelraums 2 ist eine durch ein Schließblech 9 abgetrennte Kammer 10 zur Aufnahme des Jalousieträgers 7 sowie von Antriebsmitteln für den Jalousieträger 7 vorgesehen. Dabei ist das Schließblech 9 mit einer Schlitzausnehmung 12 für den Durchtritt der Verschlußblende 8 versehen.Above the vapor collection space 2, a chamber 10, separated by a striking plate 9, is provided for receiving the blind carrier 7 and drive means for the blind carrier 7. The striking plate 9 is provided with a slot recess 12 for the passage of the closure panel 8.

Die Verschlußblende 8 trägt an ihrem dem Jalousieträger 7 abgewandten Rand eine Dichtleiste 13, um ein vollständiges Schließen der Ansaugöffnung 4 zu erreichen. Dadurch ist sicher gestellt, daß keine Luft mit so geringer Strömungsgeschwindigkeit durch das Fettfilter 5 strömen kann, bei der keine Fettabscheidung mehr erfolgt. Die Dichtleiste 13 kann dabei so ausgebildet sein, daß sie an ihrer zum Jalousieträger 7 weisenden Seite eine der Schlitzausnehmung 12 im Schließblech 9 angepaßte Breite aufweist, so daß die Dichtleiste 13 bei nicht montierter Verschlußblende 8 zur Abdichtung der Schlitzausnehmung 12 verwendet werden kann.The closure panel 8 carries on its edge facing away from the blind carrier 7 a sealing strip 13 in order to achieve a complete closing of the suction opening 4. This ensures that no air can flow through the grease filter 5 at such a low flow rate, in which no more grease separation takes place. The sealing strip 13 can be designed so that it has on its side facing the blind carrier 7 one of the slot recess 12 in the striking plate 9 width, so that the sealing strip 13 can be used to seal the slot recess 12 when the shutter 8 is not mounted.

Der Jalousieträger 7 ist als einstückige Profilleiste ausgebildet, die sich durch alle Fettabscheidezellen 1 hindurch erstreckt. Dabei ist der Jalousieträger 7 jeweils endseitig in Führungsschienen geführt.The Venetian blind support 7 is designed as a one-piece profile strip, which extends through all the grease separating cells 1. The blind carrier 7 is guided at the ends in guide rails.

In der in Fig. 5 dargestellten Ausführungsform ist der Jalousieträger 7 an einem Kettenzug 14 angeschlossen, der über ein Kettenrad 15 abläuft und zur Verstellung der Verschlußblenden 8 mit seinem freien Ende durch eine Öffnung im Schließblech 9 in den Dunstsammelraum 2 vorsteht. Dies erlaubt eine manuelle Verstellung der Verschlußblenden 8. Um eine insbes. auch automatische Verstellung zu ermöglichen, kann der Jalousieträger 7 auch in in der Zeichnung nicht näher dargestellter Weise an eine elektromechanisch verstellbare Drehspindel angeschlossen sein. Ebenso besteht die in Fig. 6 dargestellte Möglichkeit, zur Verstellung des Jalousieträgers 7 lineare Hub Motoren 16 vorzusehen. Von besonderem Vorteil ist jedoch die in Fig. 1 dargestellte Möglichkeit, zur Verstellung des Jalousieträgers 7 Drehmotoren 17 mit einem Exzenter 18 vorzusehen, wobei zwischen dem Motor 17 und dem Exzenter 18 ein entsprechendes Untersetzungsgetriebe angeordnet ist. Bei der elektromotorischen Verstellung der Verschlußblenden 8 ergibt sich weiter die Möglichkeit, eine Steuerung in Abhängigkeit von der jeweils gewählten Menge an Umluft vorzunehmen.In the embodiment shown in FIG. 5, the blind carrier 7 is connected to a chain hoist 14, which runs over a chain wheel 15 and projects with its free end through an opening in the striking plate 9 into the haze collecting space 2 for adjusting the closure panels 8. This allows the shutter panels 8 to be adjusted manually. The shutter support 7 can also be used to enable automatic adjustment, in particular be connected to an electromechanically adjustable rotary spindle in a manner not shown in the drawing. Likewise, there is the possibility shown in FIG. 6 to provide linear stroke motors 16 for adjusting the blind support 7. Of particular advantage, however, is the possibility shown in FIG. 1 of providing 7 rotary motors 17 with an eccentric 18 for adjusting the Venetian blind support, a corresponding reduction gear being arranged between the motor 17 and the eccentric 18. With the electromotive adjustment of the shutters 8, there is also the possibility of carrying out a control depending on the amount of circulating air selected in each case.

Das Fettfilter 5 ist von einer Kassette gebildet, deren in den Dunstsammelraum vorstehende Stirnseite die Ansaugöffnung 4 bildet. An der der Absaugöffnung 4 gegenüber liegenden Seite der Kassette ist eine zum Abluftkanal 3 hin offene Luftaustrittsöffnung 19 vorgesehen. Zwischen der Ansaugöffnung 4 und der Luftaustrittsöffnung 19 sind zahnartig ineinander greifende Prallbleche 20 angeordnet, die den Luftstrom mehrfach umlenken und hierdurch eine Abscheidung des in der Luft enthaltenen Fettes bewirken.The grease filter 5 is formed by a cassette, the end face of which protrudes into the vapor collection space forms the suction opening 4. On the side of the cassette opposite the suction opening 4, an air outlet opening 19 open to the exhaust air duct 3 is provided. Between the suction opening 4 and the air outlet opening 19 there are baffle plates 20 which interlock like teeth and which deflect the air flow several times and thereby cause the grease contained in the air to separate.

Die Kassette besteht im einzelnen aus einem oben offenen, im übrigen dichten Bodenteil, das durch einen lösbar aufgesetzten Deckel geschlossen ist. Die Prallbleche 20 sid dabei in Strömungsrichtung der Abluft wechselweise am Bodenteil und am Deckel angeschlossen. Die Prallbleche 20 weisen im Querschnitt V förmige Gestalt auf, wobei die beiden Schenkel der im Bodenteil angeordneten Prallbleche 20 längs ihres gesamten Umfangs am Boden bzw. an den Seitenwänden des Bodenteils dicht verschweißt sind. Hierdurch ist sicher gestellt, daß in den Hohlraum zwischen den beiden Schenkeln der Prallbleche 20 kein Fett eindringen kann, das durch übliche Reinigungsvorgänge nur schwer entfernt werden könnte. Im Deckelteil dagegen sind die Prallbleche stirnseitig vollständig offen, können also ohne weiteres gereinigt werden. Im übrigen besteht durch diesen Aufbau die Möglichkeit, die Kassette nach Öffnen ohne weiteres in einer gängigen Spülmaschine zu reinigen.The cassette consists in particular of an open top, otherwise sealed bottom part, which is closed by a detachably attached lid. The baffle plates 20 are alternately connected to the bottom part and the lid in the flow direction of the exhaust air. The baffle plates 20 have a V-shaped cross-section, the two legs being arranged in the base part Baffle plates 20 are tightly welded along their entire circumference on the floor or on the side walls of the bottom part. This ensures that no grease can penetrate into the cavity between the two legs of the baffle plates 20, which fat could be removed only with difficulty by conventional cleaning processes. In the cover part, on the other hand, the baffles are completely open on the front, so they can be easily cleaned. In addition, this construction enables the cassette to be easily cleaned in a conventional dishwasher after opening.

Die mit der Ansaugöffnung 4 versehene Stirnseite der Kassette ist, wie die Fig. 1 erkennen läßt, im Querschnitt winklig ausgebildet. Der untere, an den Boden anschließende Bereich ist dabei geschlossen und trägt ein Griffteil 21 zur Entnahme der Kassette. Der obere Bereich, der somit eine nur geringere Höhe aufweist, bildet die Ansaugöffnung 4, deren geringere Breite einen kleineren Verstellhub der Verschlußblende 8 notwendig macht und somit eine geringere Bauhöhe der Dunstabzugshaube ermöglicht.The end face of the cassette provided with the suction opening 4 is, as shown in FIG. 1, angular in cross section. The lower area adjoining the floor is closed and carries a handle part 21 for removing the cassette. The upper area, which is therefore only of lower height, forms the suction opening 4, the smaller width of which makes a smaller adjustment stroke of the closure panel 8 necessary and thus enables a lower overall height of the extractor hood.

In den Fig. 3 und 4 ist angedeutet, daß die Erfindung in entsprechender Weise auch beim Einsatz herkömmlicher Fettfilter 5 anwendbar ist.3 and 4 it is indicated that the invention can also be used in a corresponding manner when using conventional grease filters 5.

Schließlich ist sowohl im vorderseitigen als auch im rückseitigen Bereich der Dunstabzugshaube ein Beleuchtungsband vorgesehen, das von fettdichten, durch eingeklebtes Sicherheitsglas 22 geschlossenen Beleuchtungskammern 23 gebildet ist, in denen Leuchtstoffröhren 24 angeordnet sind.Finally, a lighting band is provided both in the front and in the rear area of the extractor hood, which is formed by fat-tight lighting chambers 23, which are closed by glued-in safety glass 22 and in which fluorescent tubes 24 are arranged.

Claims (16)

  1. An extractor hood, in particular for use in commercial kitchens, comprising a plurality of grease separation cells (1) which are arranged side-by-side and which each have a respective downwardly open fume collection space (2) into which opens a suction intake opening (4) connected to an air discharge duct (3), wherein a grease filter (5) is arranged between the suction intake opening (4) and the air discharge duct (3), characterised in that in the region of the suction intake opening (4) the grease separation cells (1) have a shutter carrier (7) wherein the shutter carrier (7) is displaceable jointly for all grease separation cells (1) substantially transversely to the suction intake opening (4) and is adapted for the connection of closure plates (8) which are displaceable by the shutter carrier (7) into a position of opening the suction intake opening (4) or into a position of sealingly closing the suction intake opening (4).
  2. An extractor hood according to claim 1 characterised in that disposed above the fume collection space (2) is a chamber (10) which is separated off by a closing plate portion (9), for accommodating the shutter carrier (7) and drive means for the shutter carrier (7).
  3. An extractor hood according to claim 2 characterised in that the closing plate portion (9) is provided with a slot aperture (12) for the closure plate (8) to pass therethrough.
  4. An extractor hood according to claim 3 characterised in that the closure plate (8) carries a sealing strip (13) at its edge which is remote from the shutter carrier (7).
  5. An extractor hood according to claim 4 characterised in that, at its side which is towards the shutter carrier (7), the sealing strip (13) is of a width which corresponds to the slot aperture (12) in the closing plate portion (9).
  6. An extractor hood according to one of claims 1 to 5 characterised in that the shutter carrier (7) is in the form of an integral shaped bar portion which extends through all grease separation cells (1).
  7. An extractor hood according to one of claims 1 to 6 characterised in that the shutter carrier (7) is guided at the ends in respective guide rails.
  8. An extractor hood according to one of claims 1 to 7 characterised in that the shutter carrier (7) is connected to a chain pulling means (14) which passes over a chain wheel (15) and which with its free end projects through an opening in the closing plate portion (9) into the fume collection space (2) for displacement of the closure plates (8).
  9. An extractor hood according to one of claims 1 to 7 characterised in that the shutter carrier (7) is connected to an electromechanically displaceable rotary spindle.
  10. An extractor hood according to one of claims 1 to 7 characterised in that linear stroke motors (16) are provided for displacement of the shutter carrier (7).
  11. An extractor hood according to one of claims 1 to 7 characterised in that rotary motors (17) with an eccentric (18) are provided for displacement of the shutter carrier (7).
  12. An extractor hood according to one of claims 1 to 11 characterised in that the grease filter (5) is formed by a cassette whose end which projects into the fume collection space (2) forms the suction intake opening (4) and at the side of which, that is opposite to the suction intake opening (4), there is provided an air outlet opening (19) which is open towards the air discharge duct (3), wherein disposed between the suction intake opening (4) and the air outlet opening (19) are baffle plates (20) which engage tooth-like one into the other.
  13. An extractor hood according to claim 12 characterised in that the cassette comprises a bottom portion which is open at the top and which is otherwise sealed and which is closed by a cover fitted releasably thereon, wherein the baffle plates (20) are connected alternately to the bottom portion and to the cover in the direction of flow of the discharge air.
  14. An extractor hood according to claim 12 or claim 13 characterised in that the baffle plates (20) are of a V-shaped configuration in cross-section, wherein the two legs of the baffle plates (20) which are arranged in the bottom portion are sealingly welded along their entire periphery to the bottom and to the side walls of the bottom portion respectively.
  15. An extractor hood according to one of claims 12 to 14 characterised in that the end of the cassette which is provided with the suction intake opening (4) is of an angular configuration in cross-section, wherein the lower region which adjoins the bottom is closed and carries a gripping portion (21) for removal of the cassette while the upper region forms the suction intake opening (4).
  16. An extractor hood according to one of claims 1 to 15 characterised in that provided both in the region at the front side and in the region at the rear side is a lighting strip which is formed by grease-tight lighting chambers (23) which are closed by safety glass (22) that is glued in position, fluorescent tubes (24) being arranged in the chambers (23).
EP93102796A 1993-02-23 1993-02-23 Fume extracting hood, in particular for large-scale kitchens Expired - Lifetime EP0612962B1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DK93102796.5T DK0612962T3 (en) 1993-02-23 1993-02-23 Hood, especially for use in industrial kitchens
AT93102796T ATE117422T1 (en) 1993-02-23 1993-02-23 EXTRACTOR HOOD, ESPECIALLY FOR USE IN COMMERCIAL KITCHENS.
ES93102796T ES2067338T3 (en) 1993-02-23 1993-02-23 SMOKE EXTRACTION HOOD, ESPECIALLY FOR APPLICATION IN INDUSTRIAL KITCHENS.
DE59300064T DE59300064D1 (en) 1993-02-23 1993-02-23 Extractor hood, especially for use in commercial kitchens.
EP93102796A EP0612962B1 (en) 1993-02-23 1993-02-23 Fume extracting hood, in particular for large-scale kitchens
US08/198,910 US5394861A (en) 1993-02-23 1994-02-18 Vapor-collecting hood especially for a commercial kitchen
JP6025640A JPH06300336A (en) 1993-02-23 1994-02-23 Range hood used for kitchen particularly for business

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP93102796A EP0612962B1 (en) 1993-02-23 1993-02-23 Fume extracting hood, in particular for large-scale kitchens

Publications (2)

Publication Number Publication Date
EP0612962A1 EP0612962A1 (en) 1994-08-31
EP0612962B1 true EP0612962B1 (en) 1995-01-18

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EP93102796A Expired - Lifetime EP0612962B1 (en) 1993-02-23 1993-02-23 Fume extracting hood, in particular for large-scale kitchens

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US (1) US5394861A (en)
EP (1) EP0612962B1 (en)
JP (1) JPH06300336A (en)
AT (1) ATE117422T1 (en)
DE (1) DE59300064D1 (en)
DK (1) DK0612962T3 (en)
ES (1) ES2067338T3 (en)

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EP1340024A4 (en) * 2000-08-10 2005-07-06 Halton Company Inc Device and method for controlling/balancing flow fluid flow-volume rate in flow channels
US20110005507A9 (en) * 2001-01-23 2011-01-13 Rick Bagwell Real-time control of exhaust flow
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US8475244B2 (en) * 2009-10-05 2013-07-02 Lincoln Global, Inc. Fume hood having V-shaped baffle
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Publication number Publication date
US5394861A (en) 1995-03-07
EP0612962A1 (en) 1994-08-31
ES2067338T3 (en) 1995-03-16
ATE117422T1 (en) 1995-02-15
JPH06300336A (en) 1994-10-28
DK0612962T3 (en) 1995-04-10
DE59300064D1 (en) 1995-03-02

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