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EP3686497B1 - Commercial cooking apparatus - Google Patents

Commercial cooking apparatus Download PDF

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Publication number
EP3686497B1
EP3686497B1 EP20159251.6A EP20159251A EP3686497B1 EP 3686497 B1 EP3686497 B1 EP 3686497B1 EP 20159251 A EP20159251 A EP 20159251A EP 3686497 B1 EP3686497 B1 EP 3686497B1
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EP
European Patent Office
Prior art keywords
cooking chamber
fresh air
cooking
rear wall
inlet opening
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EP20159251.6A
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German (de)
French (fr)
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EP3686497A1 (en
Inventor
Stan Smits
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MATIKA Srl
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MATIKA Srl
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Publication of EP3686497A1 publication Critical patent/EP3686497A1/en
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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
    • F24C15/32—Arrangements of ducts for hot gases, e.g. in or around baking ovens
    • F24C15/322—Arrangements of ducts for hot gases, e.g. in or around baking ovens with forced circulation

Definitions

  • the invention relates to a commercial cooking appliance according to the preamble of claim 1.
  • Such a cooking appliance has a housing in which a cooking chamber is arranged, which is made accessible via an openable and closable cooking chamber door.
  • the cooking chamber or the housing has a cooking chamber rear wall, in the vicinity of which a fan wheel is arranged in the cooking chamber or in a fan wheel area of the cooking chamber.
  • the fan wheel of the generic cooking appliance has main blades facing the cooking space, which serve to generate a cooking space air flow, which can be a dry or a moist air flow and is used to cook cooking products arranged in the cooking space.
  • the fan wheel also has auxiliary blades which face the rear wall of the cooking space and cooperate with a fresh air inlet opening, which can supply fresh air to the cooking space via a fresh air inlet duct in order, for example, to dehumidify it or to influence the cooking space climate.
  • the fresh air inlet opening is not arranged in an area of the rear wall of the cooking space that offers optimal negative pressure conditions, so that the object of the present invention is to create a cooking appliance of the type specified in the preamble of claim 1, which makes an improved supply of fresh air into the cooking space possible.
  • the concept according to the invention is based on the knowledge that by providing an acceleration device, the cooking chamber flow generated by the fan wheel can be accelerated, which in other words means that the arrangement of the acceleration device makes it possible to lower the static pressure, which in turn means that the suction of fresh air is improved by this reduced static pressure.
  • acceleration means both a positive and a negative acceleration, i.e. a slowing down, of the cooking space flow.
  • the acceleration device can be arranged at any suitable location in the cooking chamber and/or the fan wheel, since any acceleration of the cooking chamber flow results in a reduction in the static pressure and thus an improvement in the intake of fresh air.
  • the acceleration device it is possible for the acceleration device to be arranged in an area of the fresh air inlet opening in such a way that the explained increase in negative pressure is made possible by accelerating the cooking space flow.
  • the fresh air inlet opening in the cooking appliance according to the invention which includes the characterizing features of claim 1 in addition to the previously explained features corresponding to the preamble of claim 1, is not in the optimal suction area, which is usually at least approximately in the middle the longitudinal axis of the fan wheel is located.
  • the measures according to the invention eliminate these disadvantages, so that influencing the cooking space climate by supplying fresh air is optimized in the manner explained above, which has a positive effect on dehumidification of the cooking space, for example.
  • a method and a cooking device for improving the supply of fresh air are known, in which a flow guide member is provided opposite an opening into the cooking chamber housing, but care must be taken to ensure that the fresh air supplied is not accelerated in a first intermediate space, for which it is necessary maintain a minimum distance between the rear wall and the flow guide.
  • this flow guide element neither slows down nor accelerates the fresh air flowing in through the mouth, but rather, due to the distance to be maintained from the rear wall, simply introduces the inflowing fresh air without any acceleration into a second space in which the sucked in fresh air is set in rotation so that a sets the desired volume flow.
  • From the DE 10315341 A1 is a commercial cooking appliance, with the blades 24 of the impeller 20 being provided with a separating element 25 to prevent the fat or oil droplets from hitting the heating elements.
  • From the EP 1306623 A2 is a commercial cooking appliance, and in the engine compartment there is an additional delivery unit to generate a gas pressure that seals the engine compartment against vapors.
  • the acceleration device can be attached to an assembly point of the cooking chamber or housing adjacent to the fresh air inlet openings or directly to the fan wheel.
  • this includes Acceleration device two air baffles, which are mounted in the housing or in the cooking chamber and, in the assembled state, interact in such a way that an acceleration of the cooking chamber air flow, in particular the flow area that runs over the main blades, is made possible.
  • two such air baffles are provided, they can be arranged relative to one another in such a way that a nozzle is created through which the cooking chamber flow is directed and through which this flow is accelerated due to the narrowing nozzle.
  • two such air baffles are arranged in such a way that they are provided at an angle to the rear wall of the cooking space and delimit the fresh air inlet opening, which in other words means that the fresh air inlet opening is offset from its entry in the rear wall of the cooking space into the area of the angled air baffles and thus accelerated Cooking chamber flow flows directly past the fresh air inlet opening, which significantly improves the negative pressure conditions and thus the suction effect of fresh air.
  • Cooking appliance 1 shown is preferably a commercial cooking appliance.
  • This cooking appliance 1 has a housing 2, in the interior of which a cooking chamber 3 is arranged, which is accessible or can be closed with the aid of an openable and closable cooking chamber door 13.
  • a fan wheel 5 is arranged adjacent to a cooking chamber rear wall 4, which can be set in rotation, for example via a suitable electric motor, and can generate a cooking chamber flow GRS via its main blades 7 facing the cooking chamber 3, which can do this serves to cook cooking products arranged in the cooking space 3, for example using hot air or steam.
  • the fan wheel 5 has 7 auxiliary blades, of which in Fig. 1 Representatively two auxiliary blades 8A and 8B are shown, which point towards the rear wall of the cooking space 4 and are therefore arranged adjacent to a fresh air inlet opening 9 which is arranged in the rear wall of the cooking space 4.
  • the fresh air inlet opening 9 is arranged in particular in a wall area 10 of the cooking chamber rear wall 4, which the auxiliary blades 8A and 8B sweep past when the fan wheel 5 rotates.
  • Fig. 1 further illustrates a negative pressure Pa, symbolized by a point, which serves to supply fresh air FL through a fresh air supply line 14 to the fresh air inlet opening 9, from where this fresh air FL can be introduced into the cooking space 3 with the help of the auxiliary blades 8A and 8B.
  • a negative pressure Pa symbolized by a point, which serves to supply fresh air FL through a fresh air supply line 14 to the fresh air inlet opening 9, from where this fresh air FL can be introduced into the cooking space 3 with the help of the auxiliary blades 8A and 8B.
  • Fig. 1 further illustrates an acceleration device 11, alternatively or additionally 11 ', which, as explained at the beginning, is only shown as a block in this drawing in order to clarify its arrangement in an area which lies between the rear wall of the cooking space 4 and a dashed line 16 and in Fig. 1 is identified by reference number 15.
  • This area 15 represents the area in which an increase in the negative pressure PU is possible by accelerating the cooking chamber flow GRS with the aid of the acceleration device 11, the size of this area 15 depending on the type of cooking appliance, the drive power of the fan wheel 5 and the design of the fan wheel 5 and the arrangement of the fresh air inlet opening 9 depends and can be adjusted accordingly.
  • the air baffle 11A is arranged on a wall region 10 'of the rear wall of the housing 4, which is offset away from the cooking chamber 3 in the direction of the supply line 14.
  • the air baffle 11B is arranged on the wall area 10.
  • Both air baffles 11A and 11B each assume an angle ⁇ to their assigned wall areas 10 and 10 ', which means that the fresh air inlet opening 9 lies between the air baffles 11A and 11B or is limited by them, so that the cooking space flow GRS is directly at the Fresh air inlet opening 9 can be passed, which results in the desired acceleration and thus an increase in negative pressure.
  • auxiliary blade or several auxiliary blades 8A' are provided, which have a flow edge 8A", which are arranged at least essentially parallel to the angled air guide surfaces 11A and 11B, as can be seen in detail from the illustration in Fig. 3 results.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Baking, Grill, Roasting (AREA)

Description

Die Erfindung betrifft ein gewerbliches Gargerät gemäß dem Oberbegriff des Anspruches 1.The invention relates to a commercial cooking appliance according to the preamble of claim 1.

Ein derartiges Gargerät weist ein Gehäuse auf, in dem ein Garraum angeordnet ist, der über eine öffen- und schließbare Garraumtür zugänglich gemacht wird. Der Garraum bzw. das Gehäuse weisen eine Garraumrückwand auf, in deren Nachbarschaft ein Lüfterrad im Garraum bzw. in einem Lüfterradbereich des Garraums angeordnet ist. Das Lüfterrad des gattungsgemäßen Gargeräts weist dem Garraum zugewandte Hauptschaufeln auf, die der Erzeugung einer Garraumluftströmung dienen, die eine trockene oder eine feuchte Luftströmung sein kann und zum Garen von im Garraum angeordneten Garprodukten dient. Das Lüfterrad weist ferner Hilfsschaufeln auf, die der Garraumrückwand zugewandt sind und mit einer Frischlufteinlassöffnung zusammenwirken, die über einen Frischlufteinlasskanal dem Garraum Frischluft zuführen kann, um diesen beispielsweise zu entfeuchten bzw. das Garraumklima zu beeinflussen.Such a cooking appliance has a housing in which a cooking chamber is arranged, which is made accessible via an openable and closable cooking chamber door. The cooking chamber or the housing has a cooking chamber rear wall, in the vicinity of which a fan wheel is arranged in the cooking chamber or in a fan wheel area of the cooking chamber. The fan wheel of the generic cooking appliance has main blades facing the cooking space, which serve to generate a cooking space air flow, which can be a dry or a moist air flow and is used to cook cooking products arranged in the cooking space. The fan wheel also has auxiliary blades which face the rear wall of the cooking space and cooperate with a fresh air inlet opening, which can supply fresh air to the cooking space via a fresh air inlet duct in order, for example, to dehumidify it or to influence the cooking space climate.

Die Frischlufteinlassöffnung ist hierbei jedoch nicht in einem optimale Unterdruckverhältnisse bietenden Bereich der Garraumrückwand angeordnet, so dass es Aufgabe der vorliegenden Erfindung ist, ein Gargerät der im Oberbegriff des Anspruchs 1 angegebenen Art zu schaffen, das eine verbesserte Frischluftzuführung in den Garraum möglich macht.However, the fresh air inlet opening is not arranged in an area of the rear wall of the cooking space that offers optimal negative pressure conditions, so that the object of the present invention is to create a cooking appliance of the type specified in the preamble of claim 1, which makes an improved supply of fresh air into the cooking space possible.

Die Lösung dieser Aufgabe erfolgt durch die Merkmale des Anspruches 1.This problem is solved by the features of claim 1.

Das erfindungsgemäße Konzept basiert auf der Erkenntnis, dass durch das Vorsehen einer Beschleunigungseinrichtung die vom Lüfterrad erzeugte Garraumströmung beschleunigt werden kann, was mit anderen Worten bewirkt, dass durch die Anordnung der Beschleunigungseinrichtung eine Absenkung des statischen Drucks möglich ist, was wiederum bedeutet, dass die Ansaugung von Frischluft durch diesen abgesenkten statischen Druck verbessert wird. Unter "Beschleunigung" wird erfindungsgemäß sowohl eine positive wie auch eine negative Beschleunigung, also eine Verlangsamung, der Garraumströmung verstanden.The concept according to the invention is based on the knowledge that by providing an acceleration device, the cooking chamber flow generated by the fan wheel can be accelerated, which in other words means that the arrangement of the acceleration device makes it possible to lower the static pressure, which in turn means that the suction of fresh air is improved by this reduced static pressure. According to the invention, “acceleration” means both a positive and a negative acceleration, i.e. a slowing down, of the cooking space flow.

Vom Prinzip her kann die Beschleunigungseinrichtung an jeder geeigneten Stelle des Garraums und/oder des Lüfterrades angeordnet werden, da jedwede Beschleunigung der Garraumströmung eine Absenkung des statischen Drucks und damit eine Verbesserung der Ansaugung von Frischluft ergibt.In principle, the acceleration device can be arranged at any suitable location in the cooking chamber and/or the fan wheel, since any acceleration of the cooking chamber flow results in a reduction in the static pressure and thus an improvement in the intake of fresh air.

Zum Beispiel ist es möglich, dass die Beschleunigungseinrichtung in einem Bereich der Frischlufteinlassöffnung derart angeordnet wird, dass die erläuterte Unterdruckerhöhung durch die Beschleunigung der Garraumströmung möglich gemacht wird.For example, it is possible for the acceleration device to be arranged in an area of the fresh air inlet opening in such a way that the explained increase in negative pressure is made possible by accelerating the cooking space flow.

Damit wird eine verbesserte Frischluftzufuhr erreicht, obwohl die Frischlufteinlassöffnung auch beim erfindungsgemäßen Gargerät, das neben den zuvor erläuterten, dem Oberbegriff des Anspruchs 1 entsprechenden Merkmalen die kennzeichnenden Merkmale des Anspruchs 1 umfasst, nicht im optimalen Ansaugbereich, der sich üblicherweise zumindest in etwa in der Mitte der Längsachse des Lüfterrades befindet, angeordnet ist. Die erfindungsgemäßen Maßnahmen beheben jedoch diese Nachteile, so dass eine Beeinflussung des Garraumklimas durch die Zufuhr von Frischluft in der zuvor erläuterten Art und Weise optimiert ist, was sich beispielsweise auf eine Entfeuchtung des Garraums positiv auswirkt.This achieves an improved supply of fresh air, although the fresh air inlet opening in the cooking appliance according to the invention, which includes the characterizing features of claim 1 in addition to the previously explained features corresponding to the preamble of claim 1, is not in the optimal suction area, which is usually at least approximately in the middle the longitudinal axis of the fan wheel is located. However, the measures according to the invention eliminate these disadvantages, so that influencing the cooking space climate by supplying fresh air is optimized in the manner explained above, which has a positive effect on dehumidification of the cooking space, for example.

Aus der DE 103 51 476 A1 ist zwar ein Verfahren und ein Gargerät zur verbesserten Frischluftzufuhr bekannt, bei dem gegenüber einer Mündung ins Garraumgehäuse ein Strömungsleitglied vorgesehen ist, bei dem allerdings dafür Sorge getragen werden muss, dass die zugeführte Frischluft in einem ersten Zwischenraum nicht beschleunigt wird, wozu es erforderlich ist, einen Mindestabstand zwischen der Rückwand und dem Strömungsleitglied einzuhalten. Dies bedeutet, dass dieses Strömungsleitglied die durch die Mündung einströmende Frischluft weder abbremst noch beschleunigt, sondern aufgrund des einzuhaltenden Abstandes zur Rückwand die einströmende Frischluft lediglich ohne jegliche Beschleunigung in einen zweiten Zwischenraum einleitet, in dem die angesaugte Frischluft in Rotation gesetzt wird, damit sich ein gewünschter Volumenstrom einstellt. Aus der DE 10315341 A1 ist zwar ein gewerbliches Gargerät, wobei die Schaufeln 24 des Laufrads 20 mit Abscheideelementes 25 versehen sind, um zu verhindern, dass die Fett- oder Öltröpfchen nicht mehr auf die Heizelemente treffen. Aus der EP 1306623 A2 ist zwar ein gewerbliches Gargerät, wobei in dem Motorraum gibt es eine Zusatzfördereinheit zur Erzeugung eines den Motorraum gegen Wrasen abdichtenden Gasdrucks.From the DE 103 51 476 A1 A method and a cooking device for improving the supply of fresh air are known, in which a flow guide member is provided opposite an opening into the cooking chamber housing, but care must be taken to ensure that the fresh air supplied is not accelerated in a first intermediate space, for which it is necessary maintain a minimum distance between the rear wall and the flow guide. This means that this flow guide element neither slows down nor accelerates the fresh air flowing in through the mouth, but rather, due to the distance to be maintained from the rear wall, simply introduces the inflowing fresh air without any acceleration into a second space in which the sucked in fresh air is set in rotation so that a sets the desired volume flow. From the DE 10315341 A1 is a commercial cooking appliance, with the blades 24 of the impeller 20 being provided with a separating element 25 to prevent the fat or oil droplets from hitting the heating elements. From the EP 1306623 A2 is a commercial cooking appliance, and in the engine compartment there is an additional delivery unit to generate a gas pressure that seals the engine compartment against vapors.

Die Unteransprüche haben vorteilhafte Weiterbildungen der Erfindung zum Inhalt.The subclaims contain advantageous developments of the invention.

Die Beschleunigungseinrichtung kann vom Prinzip her an einer der Frischlufteinlassöffnungen benachbarten Montagestelle des Garraums bzw. des Gehäuses oder unmittelbar am Lüfterrad angebracht werden.In principle, the acceleration device can be attached to an assembly point of the cooking chamber or housing adjacent to the fresh air inlet openings or directly to the fan wheel.

Erfindungsgemäß umfasst die Beschleunigungseinrichtung zwei Luftleitbleche, die im Gehäuse bzw. im Garraum montiert sind und im montierten Zustand derart zusammenwirken, dass eine Beschleunigung der Garraumluftströmung, insbesondere des Strömungsbereiches, der über die Hauptschaufeln läuft, ermöglicht wird.According to the invention, this includes Acceleration device two air baffles, which are mounted in the housing or in the cooking chamber and, in the assembled state, interact in such a way that an acceleration of the cooking chamber air flow, in particular the flow area that runs over the main blades, is made possible.

Sind zwei derartiger Luftleitbleche vorgesehen, können diese derart zueinander angeordnet werden, dass sich eine Düse ergibt, durch die die Garraumströmung hindurchgeleitet wird und durch die diese Strömung aufgrund der sich verengenden Düse beschleunigt wird.If two such air baffles are provided, they can be arranged relative to one another in such a way that a nozzle is created through which the cooking chamber flow is directed and through which this flow is accelerated due to the narrowing nozzle.

Erfindungsgemäß sind zwei derartige Luftleitbleche derart angeordnet, dass sie in einem Winkel zur Garraumrückwand vorgesehen sind und die Frischlufteinlassöffnung begrenzen, was mit anderen Worten bedeutet, dass die Frischlufteinlassöffnung von ihrem Eintritt in der Garraumrückwand in den Bereich der winkelig angeordneten Luftleitbleche versetzt wird und somit die beschleunigte Garraumströmung unmittelbar an der Frischlufteinlassöffnung vorbeiströmt, was die Unterdruckverhältnisse und damit die Ansaugwirkung von Frischluft deutlich verbessert.According to the invention, two such air baffles are arranged in such a way that they are provided at an angle to the rear wall of the cooking space and delimit the fresh air inlet opening, which in other words means that the fresh air inlet opening is offset from its entry in the rear wall of the cooking space into the area of the angled air baffles and thus accelerated Cooking chamber flow flows directly past the fresh air inlet opening, which significantly improves the negative pressure conditions and thus the suction effect of fresh air.

Weitere Einzelheiten, Vorteile und Merkmale der vorliegenden Erfindung ergeben sich aus nachfolgender Beschreibung von Ausführungsbeispielen anhand der Zeichnung. Darin zeigt:

Fig. 1
eine schematisch stark vereinfachte Prinzipdarstellung eines Beispiel eines nicht erfindungsgemäßen Gargeräts, bei der rein schematisch eine Beschleunigungsrichtung in Form eines diese Einrichtung repräsentierenden Blocks dargestellt ist,
Fig. 2
eine schematisch stark vereinfachte Teildarstellung des erfindungsgemäßen Gargeräts zur Erläuterung der erfindungsgemäßen Beschleunigungseinrichtung, und
Fig. 3
eine der Fig. 2 entsprechende Teildarstellung einer weiteren Ausführungsform des erfindungsgemäßen Gargeräts.
Further details, advantages and features of the present invention result from the following description of exemplary embodiments based on the drawing. It shows:
Fig. 1
a schematically very simplified basic representation of an example of a cooking device not according to the invention, in which an acceleration direction is shown purely schematically in the form of a block representing this device,
Fig. 2
a schematically greatly simplified partial representation of the cooking appliance according to the invention to explain the acceleration device according to the invention, and
Fig. 3
one of the Fig. 2 Corresponding partial representation of a further embodiment of the cooking appliance according to the invention.

Das in Fig. 1 dargestellte Gargerät 1 ist bevorzugterweise ein gewerbliches Gargerät. Dieses Gargerät 1 weist ein Gehäuse 2 auf, in dessen Inneren ein Garraum 3 angeordnet ist, der mit Hilfe einer öffen- und schließbaren Garraumtür 13 zugänglich ist bzw. verschlossen werden kann.This in Fig. 1 Cooking appliance 1 shown is preferably a commercial cooking appliance. This cooking appliance 1 has a housing 2, in the interior of which a cooking chamber 3 is arranged, which is accessible or can be closed with the aid of an openable and closable cooking chamber door 13.

Im Garraum 3 ist benachbart zu einer Garraumrückwand 4 ein Lüfterrad 5 angeordnet, das beispielsweise über einen geeigneten Elektromotor in Drehung versetzt werden kann und über seine dem Garraum 3 zugewandten Hauptschaufeln 7 eine Garraumströmung GRS erzeugen kann, die dazu dient, im Garraum 3 angeordnete Garprodukte beispielsweise durch Heißluft oder durch Dampf zu garen.In the cooking chamber 3, a fan wheel 5 is arranged adjacent to a cooking chamber rear wall 4, which can be set in rotation, for example via a suitable electric motor, and can generate a cooking chamber flow GRS via its main blades 7 facing the cooking chamber 3, which can do this serves to cook cooking products arranged in the cooking space 3, for example using hot air or steam.

Das Lüfterrad 5 weist neben den zuvor erwähnten Hauptschaufeln 7 Hilfsschaufeln auf, von denen in Fig. 1 repräsentativ zwei Hilfsschaufeln 8A und 8B dargestellt sind, die auf die Garraumrückwand 4 weisen und damit einer Frischlufteinlassöffnung 9 benachbart angeordnet sind, die in der Garraumrückwand 4 angeordnet ist. Wie Fig. 1 verdeutlicht, ist die Frischlufteinlassöffnung 9 insbesondere in einem Wandbereich 10 der Garraumrückwand 4 angeordnet, an dem die Hilfsschaufeln 8A und 8B bei Drehung des Lüfterrades 5 vorbeistreichen.In addition to the previously mentioned main blades, the fan wheel 5 has 7 auxiliary blades, of which in Fig. 1 Representatively two auxiliary blades 8A and 8B are shown, which point towards the rear wall of the cooking space 4 and are therefore arranged adjacent to a fresh air inlet opening 9 which is arranged in the rear wall of the cooking space 4. How Fig. 1 clarified, the fresh air inlet opening 9 is arranged in particular in a wall area 10 of the cooking chamber rear wall 4, which the auxiliary blades 8A and 8B sweep past when the fan wheel 5 rotates.

Fig. 1 verdeutlicht ferner einen durch einen Punkt symbolisierten Unterdruck Pa, der dazu dient, Frischluft FL durch eine Frischluftzuführleitung 14 der Frischlufteinlassöffnung 9 zuzuführen, von wo aus diese Frischluft FL mit Hilfe der Hilfsschaufeln 8A und 8B in den Garraum 3 eingeleitet werden kann. Fig. 1 further illustrates a negative pressure Pa, symbolized by a point, which serves to supply fresh air FL through a fresh air supply line 14 to the fresh air inlet opening 9, from where this fresh air FL can be introduced into the cooking space 3 with the help of the auxiliary blades 8A and 8B.

Fig. 1 verdeutlicht ferner eine Beschleunigungseinrichtung 11, alternativ oder zusätzlich 11', die, wie eingangs erläutert, in dieser Zeichnung lediglich als Block dargestellt ist, um ihre Anordnung in einen Bereich zu verdeutlichen, der zwischen der Garraumrückwand 4 und einer strichlierten Linie 16 liegt und in Fig. 1 durch die Bezugsziffer 15 gekennzeichnet ist. Dieser Bereich 15 stellt den Bereich dar, in dem durch Beschleunigung der Garraumströmung GRS mit Hilfe der Beschleunigungseinrichtung 11 eine Erhöhung des Unterdrucks PU möglich ist, wobei die Größe dieses Bereiches 15 von dem Gargerätetyp, der Antriebsleistung des Lüfterrades 5 sowie der Ausgestaltung des Lüfterrades 5 und der Anordnung der Frischlufteinlassöffnung 9 abhängt und dementsprechend einstellbar ist. Fig. 1 further illustrates an acceleration device 11, alternatively or additionally 11 ', which, as explained at the beginning, is only shown as a block in this drawing in order to clarify its arrangement in an area which lies between the rear wall of the cooking space 4 and a dashed line 16 and in Fig. 1 is identified by reference number 15. This area 15 represents the area in which an increase in the negative pressure PU is possible by accelerating the cooking chamber flow GRS with the aid of the acceleration device 11, the size of this area 15 depending on the type of cooking appliance, the drive power of the fan wheel 5 and the design of the fan wheel 5 and the arrangement of the fresh air inlet opening 9 depends and can be adjusted accordingly.

Erfindungsgemäß sind gemäß Fig. 2 zwei Luftleitbleche 11A und 11B vorgesehen. Hierbei ist das Luftleitblech 11A an einem Wandbereich 10' der Gehäuseraumrückwand 4 angeordnet, der vom Garraum 3 weg in Richtung auf die Zuführleitung 14 versetzt angeordnet ist. Das Luftleitblech 11B ist am Wandbereich 10 angeordnet. Beide Luftleitbleche 11A und 11B nehmen zu ihren zugeordneten Wandbereichen 10 bzw. 10' jeweils einen Winkel α ein, was bedeutet, dass die Frischlufteinlassöffnung 9 zwischen den Luftleitblechen 11A und 11B liegt bzw. von diesen begrenzt wird, so dass die Garraumströmung GRS unmittelbar an der Frischlufteinlassöffnung 9 vorbeigeleitet werden kann, was die gewünschte Beschleunigung und damit Unterdruckerhöhung ergibt.According to the invention are according to Fig. 2 two air baffles 11A and 11B are provided. Here, the air baffle 11A is arranged on a wall region 10 'of the rear wall of the housing 4, which is offset away from the cooking chamber 3 in the direction of the supply line 14. The air baffle 11B is arranged on the wall area 10. Both air baffles 11A and 11B each assume an angle α to their assigned wall areas 10 and 10 ', which means that the fresh air inlet opening 9 lies between the air baffles 11A and 11B or is limited by them, so that the cooking space flow GRS is directly at the Fresh air inlet opening 9 can be passed, which results in the desired acceleration and thus an increase in negative pressure.

Bei der Ausführungsform gemäß Fig. 3 ist zusätzlich zu den Merkmalen der Fig. 2 eine Hilfsschaufel bzw. mehrere Hilfsschaufeln 8A' vorgesehen, die eine Strömungskante 8A" aufweisen, die zumindest im Wesentlichen parallel zu den abgewinkelten Luftleitflächen 11A und 11B angeordnet sind, wie sich dies im Einzelnen aus der Darstellung der Fig. 3 ergibt.In the embodiment according to Fig. 3 is in addition to the features of the Fig. 2 an auxiliary blade or several auxiliary blades 8A' are provided, which have a flow edge 8A", which are arranged at least essentially parallel to the angled air guide surfaces 11A and 11B, as can be seen in detail from the illustration in Fig. 3 results.

Dies ergibt eine weitere Verbesserung der Strömungs- und Druckverhältnisse, wobei ansonsten auf die Ausführungen zu Fig. 2 verwiesen werden kann.This results in a further improvement in the flow and pressure conditions, otherwise the explanations apply Fig. 2 can be referred.

Claims (3)

  1. Commercial cooking apparatus (1)
    - having a housing (2),
    • in which a cooking chamber (3) is arranged, and
    • which has a cooking chamber rear wall (4),
    - having an impeller (5),
    • which is arranged in a region (6) of the housing (2) that is adjacent to the cooking chamber rear wall (4), and
    • which has main blades (7) facing the cooking chamber (3) for producing a cooking chamber flow (GRS),
    - having a fresh air inlet opening (9), which is arranged on the cooking chamber rear wall (4),
    - having a fresh air feeding line (14) to supply fresh air (FL) to the fresh air inlet opening (9),
    - having an acceleration device (11) for the cooking chamber flow (GRS),
    wherein the acceleration device (11) is mounted on the cooking chamber (3), characterized in that:
    the acceleration device (11) has two air deflectors (11A, 11B) which are arranged at an angle (α) to the cooking chamber rear wall (4) and limit the fresh air inlet opening (9),
    a first air deflector (11A) is arranged on a first wall area (10') of the housing chamber rear wall (4), which is offset away from the cooking chamber (3) in the direction of the fresh air feeding line (14),
    a second air deflector (11B) is arranged on a second wall area (10) of the housing chamber rear wall (4),
    both air deflectors (11A, 11B) are at an angle (α) with respect to their corresponding wall areas (10', 10),
    so that the cooking chamber flow (GRS) can be channelled directly past the fresh air inlet opening (9).
  2. Apparatus according to claim 1, characterised in that the acceleration device (11) is arranged adjacent to the fresh air inlet opening (9).
  3. Commercial cooking apparatus according to claim 1 or 2, characterised in that the fresh air inlet opening (9) is arranged above the upper edge of the fan wheel (5) in a wall area (10) of the cooking chamber rear wall (4).
EP20159251.6A 2016-07-04 2017-07-03 Commercial cooking apparatus Active EP3686497B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102016212162.6A DE102016212162A1 (en) 2016-07-04 2016-07-04 Commercial cooking appliance
EP17734736.6A EP3479028A1 (en) 2016-07-04 2017-07-03 Industrial cooking device
PCT/EP2017/066501 WO2018007318A1 (en) 2016-07-04 2017-07-03 Industrial cooking device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP17734736.6A Division EP3479028A1 (en) 2016-07-04 2017-07-03 Industrial cooking device

Publications (2)

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EP3686497A1 EP3686497A1 (en) 2020-07-29
EP3686497B1 true EP3686497B1 (en) 2023-11-01

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EP20159251.6A Active EP3686497B1 (en) 2016-07-04 2017-07-03 Commercial cooking apparatus
EP17734736.6A Pending EP3479028A1 (en) 2016-07-04 2017-07-03 Industrial cooking device

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17734736.6A Pending EP3479028A1 (en) 2016-07-04 2017-07-03 Industrial cooking device

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DE (1) DE102016212162A1 (en)
WO (1) WO2018007318A1 (en)

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US11578905B2 (en) 2020-01-18 2023-02-14 True Manufacturing Co., Inc. Ice maker, ice dispensing assembly, and method of deploying ice maker
US11656017B2 (en) 2020-01-18 2023-05-23 True Manufacturing Co., Inc. Ice maker
US11802727B2 (en) 2020-01-18 2023-10-31 True Manufacturing Co., Inc. Ice maker
US11913699B2 (en) 2020-01-18 2024-02-27 True Manufacturing Co., Inc. Ice maker
US11391500B2 (en) 2020-01-18 2022-07-19 True Manufacturing Co., Inc. Ice maker
US11255589B2 (en) 2020-01-18 2022-02-22 True Manufacturing Co., Inc. Ice maker
US11519652B2 (en) 2020-03-18 2022-12-06 True Manufacturing Co., Inc. Ice maker
US11674731B2 (en) 2021-01-13 2023-06-13 True Manufacturing Co., Inc. Ice maker
US11686519B2 (en) 2021-07-19 2023-06-27 True Manufacturing Co., Inc. Ice maker with pulsed fill routine

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Also Published As

Publication number Publication date
WO2018007318A1 (en) 2018-01-11
EP3479028A1 (en) 2019-05-08
EP3686497A1 (en) 2020-07-29
DE102016212162A1 (en) 2018-01-04

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