EP0831277A1 - Four avec un catalyseur - Google Patents

Four avec un catalyseur Download PDF

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Publication number
EP0831277A1
EP0831277A1 EP97114675A EP97114675A EP0831277A1 EP 0831277 A1 EP0831277 A1 EP 0831277A1 EP 97114675 A EP97114675 A EP 97114675A EP 97114675 A EP97114675 A EP 97114675A EP 0831277 A1 EP0831277 A1 EP 0831277A1
Authority
EP
European Patent Office
Prior art keywords
catalyst
catalytic converter
oven
oven muffle
partial
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.)
Granted
Application number
EP97114675A
Other languages
German (de)
English (en)
Other versions
EP0831277B1 (fr
Inventor
Johann Klement
Christian Dipl.-Ing. Zimmermann
Erich-Olaf Fischer
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 EP0831277A1 publication Critical patent/EP0831277A1/fr
Application granted granted Critical
Publication of EP0831277B1 publication Critical patent/EP0831277B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes
    • F24C15/2007—Removing cooking fumes from oven cavities
    • F24C15/2014—Removing cooking fumes from oven cavities with means for oxidation of cooking fumes
    • 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
    • F24C14/02—Stoves or ranges having self-cleaning provisions, e.g. continuous catalytic cleaning or electrostatic cleaning pyrolytic type

Definitions

  • the present invention relates to a catalyst for use in an oven with a lockable oven muffle by at least one heating element is heated, an effective surface of the catalyst by a Precious metal layer is formed.
  • Such a catalyst is known from German specification DE 28 17 101, the catalyst passing through a ceramic disc with a plurality of holes small diameter is formed. During the cooking process or during a subsequent pyrolytic self-cleaning process flow the resulting Gases through the catalyst and are burned there or converted catalytically.
  • Another catalyst is known from German published application DE 41 39 904 A1, the catalyst being made from a self-supporting knitted wire.
  • An aluminum-containing alloy is particularly suitable as the wire, if appropriate Contains cerium. With the help of the catalyst is in the closed oven muffle circulating air cleaned.
  • a catalyst is known from German published patent application DE 41 42 336 A1 known that in a vapor outlet opening in the ceiling area of the oven muffle sits. As a result, vapors removed from the oven become a catalytic reaction for burning or neutralizing unpleasant odors.
  • the object of the present invention is to provide a catalyst with which improved cleaning of the gases is possible.
  • this is achieved in that the catalyst for the breakdown of the Heating the oven muffle released formaldehyde is used.
  • the catalyst for the breakdown of the Heating the oven muffle released formaldehyde is used.
  • formaldehyde concentration by both the catalyst Baking process and the self-cleaning process significantly reduced. So far the formation of formaldehyde only when the oven is first heated considered its first commissioning as relevant. This creates the formaldehyde when burning production-related oil or grease residues on the Oven muffle. It was therefore always recommended during the first heating process ventilate the kitchen when starting up the oven and at the same time to leave. Appropriate instructions for the pyrolytic self-cleaning operation are generally unknown so far.
  • the catalyst is advantageously formed by a wire mesh, in particular good flowability of the catalyst and at the same time a large surface area to provide for the catalytic reaction.
  • the catalyst is in a flow-through, Pot-shaped housing arranged. This facilitates the manufacture and the Assembly of the catalytic converter. The same purpose and the easy cleanability of the The measures according to claim 4 serve as a catalyst.
  • the Catalyst at least two partial catalysts arranged one behind the other in terms of flow technology on. While, for example, palladium as a catalyst material for degradation of formaldehyde, a platinum coating contributes in particular to the reduction of carbon monoxide at. So there is a risk of adverse mutual influence of smells of the two partial catalysts is reduced, is between the at least two partial catalysts an uncoated, possibly coarse mesh Neutral filter arranged. This also helps to even out the Flow through the catalyst.
  • the catalytic effect is particularly pronounced at the high temperatures occur in pyrolytic self-cleaning operation.
  • An oven 1 has a housing 3 which encloses an oven muffle 5. This is clad in a manner known per se with a thermal insulation material and on its front can be closed with an oven door 7.
  • the door consists of one metallic door floor 9, in which a viewing window 11 is held. In the front area the door 7 is on the door bottom 9 a front window spaced from the viewing window 13 attached. Between the door floor 9 and an oven flange 15 is a essentially 17 sealing the entire muffle opening arranged.
  • At the oven 1 is for pyrolytic self-cleaning operation suitable, whereby all components according to the occurring particularly high operating temperatures are designed.
  • a vapor opening 21 is also provided in this, which consists of several individual openings 22 (Fig. 2). Via a funnel-shaped connector 23, the vapor opening 21 is connected to a blow-out duct 25 which opens into the open above the door 7 in the front area of the oven 1. In the blow-out duct 25, a fan 27 for sucking air from the oven muffle 5 is arranged.
  • a catalyst 35 is arranged in the area of the vapor opening 21.
  • the catalyst has a cup-shaped housing 37 made of a good heat-conducting material, in particular Aluminum, in the bottom of which several suction openings 39 are formed are.
  • an attachment opening 41 In the middle of the bottom of the housing 37 there is an attachment opening 41, through which a fastening screw 43 is pushed through the catalyst 35 can be and in a mounting plate 45 of the top wall 20 of the Oven muffle 5 can be screwed.
  • a bent peripheral edge 47 of the Catalyst housing 37 is pressed against the top wall 20. In the direction of flow three flat wire meshes are arranged one behind the other, the large contact surfaces with each other and to the inner wall of the housing 37 and the Have top wall 20.
  • the first wire mesh forms the first partial catalyst 49.
  • the wire used for this is coated with palladium and serves in particular for the reduction of formaldehyde.
  • the second wire mesh is through an uncoated one Metal wire formed as a neutral filter 51.
  • the flow resistance of the neutral filter 51 is less than that of the first partial catalytic converter 49 and a second partial catalytic converter 53, the flow technology after the neutral filter 51 and by the first partial catalytic converter 49 is arranged spatially separated.
  • the knitted fabric of the second Partial catalyst 53 is formed from a platinum-coated metal wire for Burn or neutralize other odors or pollutants.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Incineration Of Waste (AREA)
EP97114675A 1996-09-20 1997-08-25 Four avec un catalyseur Expired - Lifetime EP0831277B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19638665A DE19638665A1 (de) 1996-09-20 1996-09-20 Backofen mit einem Katalysator
DE19638665 1996-09-20

Publications (2)

Publication Number Publication Date
EP0831277A1 true EP0831277A1 (fr) 1998-03-25
EP0831277B1 EP0831277B1 (fr) 2003-11-19

Family

ID=7806399

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97114675A Expired - Lifetime EP0831277B1 (fr) 1996-09-20 1997-08-25 Four avec un catalyseur

Country Status (2)

Country Link
EP (1) EP0831277B1 (fr)
DE (2) DE19638665A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952404A2 (fr) * 1998-04-23 1999-10-27 BSH Bosch und Siemens Hausgeräte GmbH Four de cuisson avec un boîtier filtrant
EP1160514A1 (fr) * 2000-06-02 2001-12-05 Whirlpool Corporation Four à nettoyage par pyrolyse
WO2002081973A1 (fr) * 2001-04-06 2002-10-17 Realist Technology, Inc. Dispositif catalytique monte par attache
EP1666799A1 (fr) * 2004-11-16 2006-06-07 Electrolux Home Products Corporation N.V. Moufle d'un four de cuisson avec un catalyseur
EP2273202A1 (fr) * 2009-07-08 2011-01-12 Electrolux Home Products Corporation N.V. Four de cuisson avec système de filtre catalytique
EP1686322A3 (fr) * 2005-01-28 2011-06-08 Electrolux Home Products Corporation N.V. Appareil de cuisson
US8197568B2 (en) 2006-02-08 2012-06-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Filter element for extractor hood
EP2657615A1 (fr) * 2012-04-27 2013-10-30 Miele & Cie. KG Appareil de cuisson et dispositif de catalyseur
WO2016150661A1 (fr) * 2015-03-26 2016-09-29 BSH Hausgeräte GmbH Appareil de cuisson pourvu d'un catalyseur d'air sortant
DE102022102905A1 (de) 2022-02-08 2023-08-10 Miele & Cie. Kg Gargerät mit Wrasenreinigung und Verfahren zum Betreiben des Gargeräts

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19907554A1 (de) * 1999-02-22 2000-08-31 Bsh Bosch Siemens Hausgeraete Katalysator für einen Backofen
DE19912453A1 (de) * 1999-03-19 2000-09-21 Bsh Bosch Siemens Hausgeraete Katalysator für den Backofen
DE10013884C2 (de) * 2000-03-21 2002-05-08 Aeg Hausgeraete Gmbh Garofen
DE102005045276A1 (de) * 2005-09-22 2007-04-05 Electrolux Home Products Corporation N.V. Ofen, insbesonder Küchen-Gar- oder Backofen
DE102013107361A1 (de) * 2013-07-11 2015-01-15 Miele & Cie. Kg Gargerät und Katalysatoreinrichtung
DE102021212941A1 (de) 2021-11-17 2023-05-17 BSH Hausgeräte GmbH Backofen mit spezifischem Katalysator, Verfahren

Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB775549A (en) * 1953-09-21 1957-05-29 Harold Russell Suter Improvements in or relating to catalytic fume incineration
US2828404A (en) 1955-07-01 1958-03-25 Gen Motors Corp Domestic appliance
US2846557A (en) 1955-09-09 1958-08-05 Philco Corp Vapor treating means
DE1801668A1 (de) 1967-10-13 1969-08-07 United Carr Inc Katalytischer Brenner und Verfahren zur Bildung einer katalytischen Einheit
DE1817529A1 (de) 1968-01-02 1969-08-14 Gen Electric Tuer fuer einen kombinierten elektrischen und elektronischen Herd
US3474226A (en) 1967-08-10 1969-10-21 Kelvinator Inc Range oven heating control circuit for pyrolytic oven cleaning
US3536457A (en) 1968-02-21 1970-10-27 Gen Electric Catalytic oxidation unit for domestic oven exhaust
DE1954744A1 (de) 1969-10-30 1971-05-06 Taste Master Inc Ofen mit einem Gehaeuse und einem ins Freie hinausfuehrenden Auslassdurchgang
DE2305025A1 (de) 1973-02-02 1974-08-08 Burger Eisenwerke Ag Verfahren zum selbsttaetigen reinigen der innenwaende eines brat- oder backofens
DE2309873A1 (de) 1973-02-28 1974-08-29 Burger Eisenwerke Ag Verfahren zum selbsttaetigen reinigen der innenwaende eines brat- oder backofens
DE1289281B (fr) 1962-12-13 1977-12-15
DE2803910A1 (de) 1977-02-11 1978-08-17 Philips Nv Kochofen mit gezwungenem heizgasumlauf in der muffel und mit katalytischen filterelementen
DE7836631U1 (de) 1978-12-11 1979-03-22 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Garbehaelter
DE2817101A1 (de) * 1978-04-19 1979-10-25 Bosch Siemens Hausgeraete Elektrisch beheizter garbehaelter, insbesondere pyrolytisch selbstreinigender backofen
DE2640684C2 (de) 1975-09-11 1981-11-26 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Brat- bzw. Kochofen
CH633305A5 (en) * 1977-04-27 1982-11-30 Enigma Nv Reactive catalyst for the polycondensation of amino resins
DE2811650C2 (de) 1978-03-17 1983-02-03 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Katalytischer Nachverbrenner
US4481404A (en) 1982-12-22 1984-11-06 General Electric Company Turn-off control circuit for self-cleaning ovens
DE3346019C2 (de) 1983-12-20 1985-11-07 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Backofen
EP0209887A2 (fr) 1985-07-23 1987-01-28 E.G.O. Elektro-Geräte Blanc u. Fischer Catalyseur pour un four électrique
EP0220119B1 (fr) 1985-10-16 1989-11-02 Compagnie Europeenne Pour L'equipement Menager "Cepem" Four de cuisson à nettoyage par pyrolyse
DE3929251A1 (de) 1989-09-02 1991-03-07 Scheffer Kludi Armaturen Sanitaere einhebelmischbatterie
EP0500471A1 (fr) 1991-02-21 1992-08-26 Société SCHOLTES Four de cuisson domestique
DE4139904A1 (de) 1991-12-04 1993-06-09 Kueppersbusch Ag, 4650 Gelsenkirchen, De Back- oder bratofen mit einem katalysator
DE4142336A1 (de) 1991-12-20 1993-06-24 Bosch Siemens Hausgeraete Wrasenleitung
EP0605291A1 (fr) * 1992-12-30 1994-07-06 Produits Berger S.A. Dispositif de désodorisation, par destruction catalytique des espèces organiques présentes dans l'air à épurer

Patent Citations (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB775549A (en) * 1953-09-21 1957-05-29 Harold Russell Suter Improvements in or relating to catalytic fume incineration
US2828404A (en) 1955-07-01 1958-03-25 Gen Motors Corp Domestic appliance
US2846557A (en) 1955-09-09 1958-08-05 Philco Corp Vapor treating means
DE1289281B (fr) 1962-12-13 1977-12-15
US3474226A (en) 1967-08-10 1969-10-21 Kelvinator Inc Range oven heating control circuit for pyrolytic oven cleaning
DE1801668A1 (de) 1967-10-13 1969-08-07 United Carr Inc Katalytischer Brenner und Verfahren zur Bildung einer katalytischen Einheit
DE1817529A1 (de) 1968-01-02 1969-08-14 Gen Electric Tuer fuer einen kombinierten elektrischen und elektronischen Herd
US3536457A (en) 1968-02-21 1970-10-27 Gen Electric Catalytic oxidation unit for domestic oven exhaust
DE1954744A1 (de) 1969-10-30 1971-05-06 Taste Master Inc Ofen mit einem Gehaeuse und einem ins Freie hinausfuehrenden Auslassdurchgang
DE2305025A1 (de) 1973-02-02 1974-08-08 Burger Eisenwerke Ag Verfahren zum selbsttaetigen reinigen der innenwaende eines brat- oder backofens
DE2309873A1 (de) 1973-02-28 1974-08-29 Burger Eisenwerke Ag Verfahren zum selbsttaetigen reinigen der innenwaende eines brat- oder backofens
DE2640684C2 (de) 1975-09-11 1981-11-26 Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka Brat- bzw. Kochofen
DE2803910A1 (de) 1977-02-11 1978-08-17 Philips Nv Kochofen mit gezwungenem heizgasumlauf in der muffel und mit katalytischen filterelementen
CH633305A5 (en) * 1977-04-27 1982-11-30 Enigma Nv Reactive catalyst for the polycondensation of amino resins
DE2811650C2 (de) 1978-03-17 1983-02-03 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Katalytischer Nachverbrenner
DE2817101A1 (de) * 1978-04-19 1979-10-25 Bosch Siemens Hausgeraete Elektrisch beheizter garbehaelter, insbesondere pyrolytisch selbstreinigender backofen
DE7836631U1 (de) 1978-12-11 1979-03-22 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Garbehaelter
US4481404A (en) 1982-12-22 1984-11-06 General Electric Company Turn-off control circuit for self-cleaning ovens
DE3346019C2 (de) 1983-12-20 1985-11-07 Bosch-Siemens Hausgeraete Gmbh, 7000 Stuttgart Backofen
EP0209887A2 (fr) 1985-07-23 1987-01-28 E.G.O. Elektro-Geräte Blanc u. Fischer Catalyseur pour un four électrique
EP0220119B1 (fr) 1985-10-16 1989-11-02 Compagnie Europeenne Pour L'equipement Menager "Cepem" Four de cuisson à nettoyage par pyrolyse
DE3929251A1 (de) 1989-09-02 1991-03-07 Scheffer Kludi Armaturen Sanitaere einhebelmischbatterie
EP0500471A1 (fr) 1991-02-21 1992-08-26 Société SCHOLTES Four de cuisson domestique
DE4139904A1 (de) 1991-12-04 1993-06-09 Kueppersbusch Ag, 4650 Gelsenkirchen, De Back- oder bratofen mit einem katalysator
DE4142336A1 (de) 1991-12-20 1993-06-24 Bosch Siemens Hausgeraete Wrasenleitung
EP0605291A1 (fr) * 1992-12-30 1994-07-06 Produits Berger S.A. Dispositif de désodorisation, par destruction catalytique des espèces organiques présentes dans l'air à épurer

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0952404A3 (fr) * 1998-04-23 1999-11-24 BSH Bosch und Siemens Hausgeräte GmbH Four de cuisson avec un boítier filtrant
EP0952404A2 (fr) * 1998-04-23 1999-10-27 BSH Bosch und Siemens Hausgeräte GmbH Four de cuisson avec un boîtier filtrant
EP1160514A1 (fr) * 2000-06-02 2001-12-05 Whirlpool Corporation Four à nettoyage par pyrolyse
US6437294B2 (en) 2000-06-02 2002-08-20 Whirlpool Corporation Pyrolytic self-cleaning oven
WO2002081973A1 (fr) * 2001-04-06 2002-10-17 Realist Technology, Inc. Dispositif catalytique monte par attache
US7138092B2 (en) 2001-04-06 2006-11-21 Realist Technology Ltd. Clip-mounted catalyst device
US7575726B2 (en) 2001-04-06 2009-08-18 Applied Technology Limited Partnership Snap-fit catalyst device
EP1666799A1 (fr) * 2004-11-16 2006-06-07 Electrolux Home Products Corporation N.V. Moufle d'un four de cuisson avec un catalyseur
EP1686322A3 (fr) * 2005-01-28 2011-06-08 Electrolux Home Products Corporation N.V. Appareil de cuisson
EP2818800A1 (fr) * 2005-01-28 2014-12-31 Electrolux Home Products Corporation N.V. Appareil de cuisson
US8197568B2 (en) 2006-02-08 2012-06-12 Bsh Bosch Und Siemens Hausgeraete Gmbh Filter element for extractor hood
CN102472502A (zh) * 2009-07-08 2012-05-23 伊莱克斯家用产品股份有限公司 具有催化过滤器系统的烹饪烤箱
WO2011003504A3 (fr) * 2009-07-08 2011-03-17 Electrolux Home Products Corporation N.V. Four de cuisson doté d’un système de filtre catalytique
US8847119B2 (en) 2009-07-08 2014-09-30 Electrolux Home Products Corporation N.V. Cooking oven with a catalytic filter system
EP2273202A1 (fr) * 2009-07-08 2011-01-12 Electrolux Home Products Corporation N.V. Four de cuisson avec système de filtre catalytique
AU2010268881B2 (en) * 2009-07-08 2015-02-19 Electrolux Home Products Corporation N.V. A cooking oven and catalytic filter system
EP2657615A1 (fr) * 2012-04-27 2013-10-30 Miele & Cie. KG Appareil de cuisson et dispositif de catalyseur
WO2016150661A1 (fr) * 2015-03-26 2016-09-29 BSH Hausgeräte GmbH Appareil de cuisson pourvu d'un catalyseur d'air sortant
DE102022102905A1 (de) 2022-02-08 2023-08-10 Miele & Cie. Kg Gargerät mit Wrasenreinigung und Verfahren zum Betreiben des Gargeräts

Also Published As

Publication number Publication date
DE59711022D1 (de) 2003-12-24
DE19638665A1 (de) 1998-03-26
EP0831277B1 (fr) 2003-11-19

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