EP1639299A1 - Four de cuisson - Google Patents

Four de cuisson

Info

Publication number
EP1639299A1
EP1639299A1 EP04740132A EP04740132A EP1639299A1 EP 1639299 A1 EP1639299 A1 EP 1639299A1 EP 04740132 A EP04740132 A EP 04740132A EP 04740132 A EP04740132 A EP 04740132A EP 1639299 A1 EP1639299 A1 EP 1639299A1
Authority
EP
European Patent Office
Prior art keywords
air
oven
flap
cooling air
shaft
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.)
Withdrawn
Application number
EP04740132A
Other languages
German (de)
English (en)
Inventor
Josef Wurm
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 Bosch und Siemens 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 Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1639299A1 publication Critical patent/EP1639299A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F24C15/16—Shelves, racks or trays inside ovens; Supports therefor
    • F24C15/162—Co-operating with a door, e.g. operated by the door
    • 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
    • F24C14/00—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning
    • 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
    • F24C15/006—Arrangements for circulation of cooling air

Definitions

  • the invention relates to an oven with a thermal heating element containing, on different operating temperature levels such as normal baking and roasting temperature on the one hand and high temperature for the pyrolytic self-cleaning of the oven muffle on the other hand heated oven muffle within an oven housing and with one arranged between oven muffle and housing wall, adjustable to different fan powers Cooling air blower, the pressure side of which is connected to an open-ended, low-cross-section air duct.
  • a thermal heating element containing, on different operating temperature levels such as normal baking and roasting temperature on the one hand and high temperature for the pyrolytic self-cleaning of the oven muffle on the other hand heated oven muffle within an oven housing and with one arranged between oven muffle and housing wall, adjustable to different fan powers Cooling air blower, the pressure side of which is connected to an open-ended, low-cross-section air duct.
  • a cooling chamber communicating with the oven periphery is provided above the oven muffle, at the end of which facing the oven front there is a flow opening with a fan placed therein, which is in flow connection with an outside leading exhaust duct.
  • the named flow opening with fan can be closed by a shut-off flap during normal operation of the oven, while this shut-off flap is open in high-temperature operation in order to allow a cooling air flow and to serve as an indicator for the respective operating mode.
  • the present invention is based on the object to improve the oven described above with regard to the cooling air system so that without special effort z.
  • the partial area of the air duct immediately adjacent to the pressure-side flow opening of the cooling air blower is designed as a flap that can be adjusted automatically into different opening positions with respect to the blow-out opening of the cooling air blower by means of the respective back pressure.
  • the part of the air shaft which is preferably designed as a flap, adjusts solely by its weight automatically in a position in which a part of the air flow emanating from the cooling air blower is diverted and does not get into the air duct.
  • a dynamic pressure will not build up on the inlet side of the air shaft, so that the aforementioned problems no longer arise.
  • the amount of air introduced into the air shaft is still sufficient to
  • the flap In high-temperature operation, i.e. with increased engine output, the flap in turn automatically moves into a position in which the inlet end of the air shaft is enlarged in cross-section and the entire amount of air coming from the cooling air blower can get into the air shaft.
  • the portion of the air duct facing the blow-out opening of the cooling air blower is through the flap in a position that is at least approximately aligned with the full blow-out opening and in a position that is only partially aligned with this blow-out opening and only a subset of that starting from the blow-out opening Airflow receiving position adjustable.
  • the air shaft is advantageously designed such that the portion of the air shaft facing the cooling air blower has a cross-sectional shape that corresponds to the cross-sectional shape of the blow-out opening of the cooling air blower, with a lower and possibly lateral fixed shaft wall and an upper stop wall that can be rotated to a limited extent and forms the flap.
  • FIG. 1 shows the schematic sectional view of an oven containing the cooling air system according to the invention
  • FIG. 2 shows the enlarged representation of a cooling air system as a detail without the measures according to the invention
  • FIG. 3 and 4 enlarged details according to FIG. 2 in the construction according to the invention with different positions of the flap of the air shaft, specifically in FIG. 3 in normal operation and in FIG. 4 in high-temperature operation of the oven.
  • an oven muffle 2 surrounded by an insulating layer is arranged within an oven housing 1, the loading opening of which can be closed by an oven door 4 fastened at an angle to cables 3.
  • the trains are mounted in a known manner below the oven muffle 2 on rollers 5, 6 and can thus be moved like a drawer in the closing direction 7 or in the opening direction 8.
  • fastening elements 9 for hooked-in food carriers 10 are arranged on the inside of the oven door 4.
  • On the deck side inside the furnace muffle 2 there is a so-called top heat, a radiant heater 11, and a bottom heat 12 is arranged below the furnace muffle 2.
  • Also above the furnace muffle 2 is a very narrow air shaft 13 which is fluidically connected to the outlet opening of a z. B.
  • FIG. 1 In the upper area of the furnace housing 1 and above the air shaft 13 there is a space 17 indicated by dashed lines, in which electrical or electronic elements or devices are arranged, which, for. B. can be actuated by means of an operating element 18.
  • FIG. 2 shows the conventional design of a cooling air system with a narrow air duct 13, which widens like a funnel by an upwardly bent part 19 facing the cooling air blower 15 and whose inflow opening 20 essentially corresponds in cross section to the cross section of the blowout opening 14 of the cooling air blower 15, d. H. the aforementioned openings are essentially aligned with one another.
  • the cooling air blower 15 is partially surrounded in a known manner by a flow channel 21 with a suction opening 22 and the already mentioned outlet opening 14.
  • FIG. 1 that part of the air shaft 13 which is directly adjacent to the cooling air blower is designed as a flap 16, which flap can be pivoted about a pivot bearing 24.
  • Figure 4 shows the flap 16 when performing a high temperature operation, that is during a pyrolytically self-cleaning operating method of the oven. Due to the high air flow, the pivotable flap 16 is automatically pivoted up to the stop 23 in FIG. 4, so that the inflow opening 20 of the air shaft 13 essentially corresponds in cross section to the cross section of the blowout opening 14 of the cooling air blower 15, that is to say it is flush with it.
  • the same conditions prevail as in the example shown in FIG.
  • the cooling air blower 15 is operated with an engine power of 28 W.
  • the flap automatically drops downward into the position according to FIG. In this position, the inflow opening 20 'is only in cross-section with part of the cross-section of the blow-out opening 14 of the cooling air fan 15.
  • the flap 16 remains in the aforementioned position.
  • the air flow arriving from the cooling air blower 15 is divided into an air flow introduced into the air shaft 13 and into a secondary air flow according to the arrows 25, which does not get into the air shaft 13 and cannot contribute to the build-up of a high dynamic pressure.
  • the flap 16 remains in this position and there is the advantage that due to the relatively small flow rate no significant flow noises can be noticed, but the amount of air blown out is sufficient to allow the oven to operate during normal operation effective cooling.
  • the respective position of the flap 16 is thus automatically controlled depending on the engine power.
  • the air shaft is formed with a lower shaft wall immediately adjacent to the furnace muffle 2 and possibly with lateral, also fixed shaft walls, as well as with the flap 16, which, in order to reduce bearing frictional forces, preferably by means of a so-called cutting edge bearing on the upper, fixed part of the air shaft 13 is mounted smoothly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Baking, Grill, Roasting (AREA)

Abstract

L'invention concerne un four de cuisson comprenant : une moufle (2) qui contient des éléments thermiques de chauffage (11, 12) et qui peut être chauffée pour atteindre différents niveaux de température de fonctionnement, par exemple une température normale qui permet de cuire et de rôtir d'une part, et une température élevée (pyrolyse) d'autre part, et ; une soufflante d'air de refroidissement (15) qui est disposée en aval d'un puits d'air (13) menant à l'air libre et qui sert à évacuer l'air chaud produit à l'intérieur du four de cuisson. L'objectif de cette invention est d'éviter les mesures de commande complexes. A cet effet, au moins une partie du puits d'air peut être ajustée automatiquement, au moyen d'un clapet pouvant pivoter librement (16), en fonction des différentes puissances de soufflage, pour former différentes sections transversales d'écoulement.
EP04740132A 2003-06-23 2004-06-21 Four de cuisson Withdrawn EP1639299A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10328069A DE10328069A1 (de) 2003-06-23 2003-06-23 Backofen
PCT/EP2004/006697 WO2005001342A1 (fr) 2003-06-23 2004-06-21 Four de cuisson

Publications (1)

Publication Number Publication Date
EP1639299A1 true EP1639299A1 (fr) 2006-03-29

Family

ID=33546605

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04740132A Withdrawn EP1639299A1 (fr) 2003-06-23 2004-06-21 Four de cuisson

Country Status (4)

Country Link
US (1) US7282672B2 (fr)
EP (1) EP1639299A1 (fr)
DE (1) DE10328069A1 (fr)
WO (1) WO2005001342A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVE20090024A1 (it) * 2009-04-28 2010-10-29 Meneghetti S P A Forno da incasso.-
WO2013149095A1 (fr) * 2012-03-28 2013-10-03 B/E Aerospace, Inc. Four ayant un mécanisme de tiroir coulissant
CN102954017A (zh) * 2012-11-02 2013-03-06 合肥通用机械研究院 箱式单级直联高速鼓风机
EP2846100B1 (fr) * 2013-09-10 2018-05-30 Electrolux Appliances Aktiebolag Système de refroidissement et d'échappement destiné à un four de cuisson
DE102015225581A1 (de) 2015-12-17 2017-06-22 Convotherm Elektrogeräte GmbH Verfahren zum Betreiben eines gewerblichen Gargeräts
WO2018001796A1 (fr) * 2016-06-27 2018-01-04 Electrolux Appliances Aktiebolag Appareil ménager doté d'un dispositif d'éclairage et d'un conduit de refroidissement
CN112212372B (zh) * 2019-07-09 2022-12-13 宁波方太厨具有限公司 一种厨房灶具
CN110419545A (zh) * 2019-07-22 2019-11-08 宝应县鑫龙铸造有限公司 一种具有尾气处理的环保型焙烧炉
US12035845B1 (en) 2023-04-26 2024-07-16 Sharkninja Operating Llc Systems and methods for cooking pizza

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310046A (en) 1965-03-02 1967-03-21 Gen Electric Domestic oven with air cooling system
US3416509A (en) * 1966-11-23 1968-12-17 Inst Gas Technology Self-cleaning gas oven
US3659578A (en) * 1970-12-15 1972-05-02 Whirlpool Co Vent for a self-cleaning oven
DE2106869B2 (de) 1971-02-13 1977-08-25 Neff - Werke, Carl Neff Gmbh, 7518 Bretten Haushaltsbackofen
US3911893A (en) * 1974-06-24 1975-10-14 White Westinghouse Corp Ventilating system for self-cleaning wall oven
JPS569127Y2 (fr) * 1976-02-26 1981-02-27
FR2559241B1 (fr) * 1984-02-06 1986-12-12 Dietrich Sa Perfectionnement permettant la mise et le maintien en depression du moufle d'un four electrodomestique a reacteur catalytique
DE3839657C2 (de) * 1988-11-24 1993-11-18 Miele & Cie Luftführungssystem für einen Backofen
US5676044A (en) * 1996-01-03 1997-10-14 Lara, Jr.; George A. Rotary air impingement oven
JP2002516978A (ja) 1998-05-23 2002-06-11 エナシスト、ディヴェラップマント、センタ、エル、エル、シー 脂の処理及び煙の低減のできる高熱伝達率の対流オーブン
US6603102B2 (en) * 1999-09-13 2003-08-05 Maytag Corporation Pressure monitoring arrangement for heating system of a convection cooking appliance
JP2005149740A (ja) * 2003-11-11 2005-06-09 Matsushita Electric Ind Co Ltd 誘導加熱調理器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2005001342A1 *

Also Published As

Publication number Publication date
WO2005001342A1 (fr) 2005-01-06
US7282672B2 (en) 2007-10-16
US20070102416A1 (en) 2007-05-10
DE10328069A1 (de) 2005-05-19

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