EP0154595B2 - Elektrischer Katalysator-Haushaltsherd mit Vorrichtung um die Ofenkammer in Unterdruck zu bringen und zu halten - Google Patents
Elektrischer Katalysator-Haushaltsherd mit Vorrichtung um die Ofenkammer in Unterdruck zu bringen und zu halten Download PDFInfo
- Publication number
- EP0154595B2 EP0154595B2 EP85440003A EP85440003A EP0154595B2 EP 0154595 B2 EP0154595 B2 EP 0154595B2 EP 85440003 A EP85440003 A EP 85440003A EP 85440003 A EP85440003 A EP 85440003A EP 0154595 B2 EP0154595 B2 EP 0154595B2
- Authority
- EP
- European Patent Office
- Prior art keywords
- oven
- oven according
- duct
- communication
- air
- 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
Links
Images
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
-
- 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 present invention relates to an improvement enabling the muffle to be placed under vacuum and maintained in an electrical household appliance with a catalytic reactor with or without pyrolytic cleaning.
- the passage time (RG) of these gases along the walls of the catalyst channels must approach the following optimum value:
- the dimensions of the reactor must be sufficient so as not to saturate it too quickly during cooking or cleaning.
- the present invention makes it possible to better fulfill the first condition, the following conditions being linked more particularly to the dimensions of the catalyst and to the operating temperature of the furnace.
- the gases exit by natural draft, either directly outside via a rear chimney; either in an auxiliary evacuation channel in the case of an outlet on the front face and of a catalyst passing through the upper wall of the muffle.
- the inventors have imagined a combination of means making it possible, without additional energy, to create a sufficient vacuum to direct all of the gases and fumes to the catalyst and to suck them out of the muffle, through that and remove them with the extracted air.
- the first patent is a double V-shaped channel, providing between its two branches a triangular volume at the point of fresh air.
- the branch located above the catalyst element is covered with a protective and insulating sheet to prevent the diffusion of heat upwards.
- This part cannot be used as a cover for the catalyst cartridge. Furthermore, it has no particular profile.
- the majority of the cartridge body is located outside the upper wall of the enclosure. It emerges through the ejection channel to pass along the sheath through the orifices that the latter has in the lower part.
- the cartridge body is thus surrounded by a coaxial air flow.
- the principle used consists in favoring the pulling by entrainment effect brought by a coaxial air flow.
- German patent 1811760 SIMPLEX relates to an air outlet for a heating chamber, the duct of which opens into an intermediate chamber.
- the outlet from said intermediate chamber is located in an ejection volume just below the main outlet orifice for the ventilation air of the device.
- This ejection volume receives both on the other hand, by adjacent channels, the ventilation air of the interior volume of the heater.
- the ejection of air from the heating chamber is favored by a driving movement provided by the general ventilation of the device.
- a channel for evacuating the extracted air is created above the enclosure, a channel which opens out under the control panel.
- a cartridge containing a catalyst element is disposed at the upper outlet of the heating chamber.
- the cartridge opens into the channel through a passage made in an inclined deflection plate forming the bottom wall of the deflection channel.
- the present invention proceeds from a completely different principle of depression inspired by aeronautical technique.
- the general inventive idea consists in using the vacuum effect caused by a hood shaped as an aerodynamic profile, and disposed on the outlet of the catalyst, in the exhaust air flow which generates a call for air at the level of the catalyst. .
- the invention consists in placing a hood shaped according to the upper surface of an aircraft wing, in the forced ventilation channel of the enclosure, above the outlet of the catalyst, the upper surface being provided with an orifice. suction in correspondence with the catalyst part.
- the invention has several particularly interesting advantages:
- the present invention applies mainly, but not exclusively, to household electrical ovens comprising an air extraction device between the insulation of the muffle and the casing by means of group 1 in the high position, with turbine 2 blowing the air extracted on the facade above the door 3 of the oven 4, by a horizontal ejection channel 5 with converging walls towards the outlet.
- the cooling of the walls comes from the circulation of air between the external enclosure 6 and the muffle 7 from the lower air inlet 8 to the outlet 9 of the air stream 10 on the facade, after its passage along channel 5.
- the invention will usually be used on ovens without catalytic reactor, but also on ovens provided with a catalytic reactor 11 disposed through the upper wall 12 of the muffle, for example in the central part, opening into the channel 5.
- the invention applies more particularly to pyrolysis and catalysis ovens which systematically include a catalytic reactor.
- This configuration causes a discharge of the combustion gases which generates an overpressure in the muffle and causes these gases to escape through the orifices which may be on the walls of the muffle (insufficiently tight door, braided seal, passage of the probe, thermostat , turbine, spit ).
- this suction orifice can have various technical forms depending on the effects and advantages which it is desired to obtain.
- the main variants are shown in figures from 5 to 7.
- the suction opening of the cover will have the shape of an opening, preferably rectangular, 17, with edges slightly offset from one another.
- a deflector 18 which has the purpose of deflecting and concentrating the air stream 10 on the cover 13 and in particular on its suction opening.
- This deflector itself constitutes a passage for air and occupies only part of the section of the channel 5 in height and in width, so as not to present any significant pressure drop for the turbine which would no longer operate in its normal conditions of use.
- the deflector 18 has, in a horizontal plane, a slightly divergent shape towards the front of the oven. It occupies a central position from the entry of the ejection channel 5. Its passage section is in principle rectangular, so that its lower wall 19 forms with the cover a suction volume 20 in double reverse convergence type Venturi which favors the suction effect. Its projected surface roughly covers that of the cover 13.
- the lower wall 19 presses the air gap on the cover and thus significantly increases the vacuum effect.
- the presence of the deflector makes it possible to separate the central air flow in the channel which tended to be concentrated along a central zone in the extension of the width of the turbine.
- two lateral channels are formed which ensure complete homogenization of the air and, consequently, better mixing in the ejection channel.
- the upstream edge 21 remains in the extension of the curvilinear attack inclination while the downstream edge 22 has a slight downward bending.
- This last variant increases the effect and the suction flow thanks to the shape of the edges of the opening which promotes the flow of the outgoing gases.
- the external shape of the cover may vary slightly as well as the position of the opening. Tests have shown for this purpose that these shapes and positions were not decisive and that the results were still obtained to a lesser degree, but little differed for neighboring shapes and positions.
- vacuum cover 13 has no need to be made separately and attached to the upper horizontal wall of the muffle.
- one of the advantages of the invention consists in conforming the cover 13 in the sheet of sheet metal constituting the upper external envelope of the block.
- the catalytic reactor operating at full efficiency, it is possible, in certain cases, to vary the flow rate of the gas slightly.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Claims (9)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8401889A FR2559241B1 (fr) | 1984-02-06 | 1984-02-06 | Perfectionnement permettant la mise et le maintien en depression du moufle d'un four electrodomestique a reacteur catalytique |
FR8401889 | 1984-02-06 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0154595A1 EP0154595A1 (de) | 1985-09-11 |
EP0154595B1 EP0154595B1 (de) | 1989-05-03 |
EP0154595B2 true EP0154595B2 (de) | 1992-05-06 |
Family
ID=9300853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP85440003A Expired - Lifetime EP0154595B2 (de) | 1984-02-06 | 1985-02-05 | Elektrischer Katalysator-Haushaltsherd mit Vorrichtung um die Ofenkammer in Unterdruck zu bringen und zu halten |
Country Status (4)
Country | Link |
---|---|
US (1) | US4654508A (de) |
EP (1) | EP0154595B2 (de) |
DE (1) | DE3569976D1 (de) |
FR (1) | FR2559241B1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0942235B1 (de) * | 1998-03-09 | 2003-11-05 | BSH Bosch und Siemens Hausgeräte GmbH | Backofen mit Sauggehäuse |
EP2474787B1 (de) | 2012-04-13 | 2016-10-12 | V-Zug AG | Dampfgargerät |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT206428Z2 (it) * | 1986-03-07 | 1987-08-10 | Erba Strumentazione | Dispositivo di riscaldamento specialmente per campionatori automatici. |
DE3703539A1 (de) * | 1987-02-06 | 1988-08-18 | Buderus Kuechentechnik | Vorrichtung zur steuerung der dampfleistung eines mit dampf betriebenen gargeraetes |
DE3741975A1 (de) * | 1987-12-11 | 1989-06-22 | Buderus Kuechentechnik | Vorrichtung zur steuerung eines mit dampf betriebenen gargeraetes und vorrichtung zum betreiben eines solchen geraetes |
FR2688297B1 (fr) * | 1992-03-03 | 1999-07-30 | Europ Equip Menager | Appareil de cuisson electromenager, notamment fours ou cuisinieres comportant un dispositif de mise en depression. |
DE4211755A1 (de) * | 1992-04-08 | 1993-10-14 | Licentia Gmbh | Back- und Bratofen mit einer Kühlabluft- und Wrasenabzugseinrichtung |
US5387779A (en) * | 1993-11-08 | 1995-02-07 | Suzuki; Kisaku | Rice oven with forced residual heat exhaust |
US6113702A (en) | 1995-09-01 | 2000-09-05 | Asm America, Inc. | Wafer support system |
SG70574A1 (en) * | 1996-06-20 | 2000-02-22 | Chua Boon Pen | Fluid extraction apparatus |
US6472640B2 (en) | 1999-09-13 | 2002-10-29 | Maytag Corporation | Preheat system for convection cooking appliance |
US6723961B2 (en) | 2000-08-29 | 2004-04-20 | Maytag Corporation | Self-cleaning system for convection cooking appliance |
SE0101920D0 (sv) * | 2001-05-31 | 2001-05-31 | Electrolux Ab | Anordning vid en inbyggnadsugn |
DE10202132B4 (de) * | 2002-01-21 | 2011-07-14 | BSH Bosch und Siemens Hausgeräte GmbH, 81739 | Backofen mit einem Wrasenkanal |
AU2003203444B2 (en) * | 2002-10-25 | 2005-01-06 | Fisher & Paykel Appliances Limited | Cooking Appliance Venting System |
MXPA05006788A (es) * | 2002-12-23 | 2005-11-04 | Premark Feg Llc | Un horno para cocinar comida. |
FR2849165B1 (fr) * | 2002-12-23 | 2005-03-04 | Premark Feg Llc | Four pour la cuisson d'aliments |
DE10328069A1 (de) * | 2003-06-23 | 2005-05-19 | BSH Bosch und Siemens Hausgeräte GmbH | Backofen |
ES2246144B1 (es) * | 2004-06-15 | 2006-11-01 | Fagor, S.Coop. | Horno domestico con dispositivo de evacuacion de vahos. |
EP2408263B1 (de) * | 2004-12-14 | 2014-02-12 | Enodis Corporation | Umwälzungs-/Konvektions-/Mikrowellenofen und Verfahren |
GB2438871A (en) * | 2006-06-09 | 2007-12-12 | David Pollak | Heating and cooking appliance comprising an air extractor |
US7468496B2 (en) * | 2006-11-15 | 2008-12-23 | Electrolux Home Products, Inc. | Dynamic flow oven cavity vent |
US8418684B2 (en) * | 2007-08-24 | 2013-04-16 | Catalytic Combustion Corporation | Catalytic converter unit and method for treating cooking emissions |
DE102007059770A1 (de) * | 2007-12-12 | 2009-06-18 | BSH Bosch und Siemens Hausgeräte GmbH | Gargerätvorrichtung |
TR201206974T1 (tr) * | 2009-12-31 | 2013-01-21 | Arçeli̇k Anoni̇m Şi̇rketi̇ | Havalandırma cihazı içeren bir fırın. |
EP2846100B1 (de) * | 2013-09-10 | 2018-05-30 | Electrolux Appliances Aktiebolag | Kühl- und Abzugsanlage für einen Backofen |
ITTO20130863A1 (it) * | 2013-10-25 | 2015-04-26 | Indesit Co Spa | Forno pirolitico con raffreddamento perfezionato |
USD787041S1 (en) | 2015-09-17 | 2017-05-16 | Whirlpool Corporation | Gas burner |
US10837651B2 (en) | 2015-09-24 | 2020-11-17 | Whirlpool Corporation | Oven cavity connector for operating power accessory trays for cooking appliance |
US11777190B2 (en) | 2015-12-29 | 2023-10-03 | Whirlpool Corporation | Appliance including an antenna using a portion of appliance as a ground plane |
US10145568B2 (en) | 2016-06-27 | 2018-12-04 | Whirlpool Corporation | High efficiency high power inner flame burner |
US10551056B2 (en) | 2017-02-23 | 2020-02-04 | Whirlpool Corporation | Burner base |
US10451290B2 (en) | 2017-03-07 | 2019-10-22 | Whirlpool Corporation | Forced convection steam assembly |
US10660162B2 (en) | 2017-03-16 | 2020-05-19 | Whirlpool Corporation | Power delivery system for an induction cooktop with multi-output inverters |
US10627116B2 (en) * | 2018-06-26 | 2020-04-21 | Whirlpool Corporation | Ventilation system for cooking appliance |
US10619862B2 (en) | 2018-06-28 | 2020-04-14 | Whirlpool Corporation | Frontal cooling towers for a ventilation system of a cooking appliance |
US10837652B2 (en) | 2018-07-18 | 2020-11-17 | Whirlpool Corporation | Appliance secondary door |
DE102018129615A1 (de) | 2018-11-23 | 2020-05-28 | Soler & Palau Research, S.L.U. | System zur Vermeidung von Geruchsbelästigungen |
DE102018129616A1 (de) | 2018-11-23 | 2020-05-28 | Soler & Palau Research, S.L.U. | Verfahren und System zur Beschleunigung und Verdünnung eines Abluftstroms |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2177223A (en) * | 1939-10-24 | Bake oven | ||
US2511328A (en) * | 1948-09-16 | 1950-06-13 | Newark Stove Company | Oven venting |
US3310046A (en) * | 1965-03-02 | 1967-03-21 | Gen Electric | Domestic oven with air cooling system |
GB1238465A (de) * | 1967-12-02 | 1971-07-07 | ||
US3499430A (en) * | 1968-04-03 | 1970-03-10 | Caloric Corp | High temperature oven structure |
GB1244257A (en) * | 1969-01-31 | 1971-08-25 | Gas Council | Improvements in or relating to forced convection ovens |
US3612032A (en) * | 1969-10-10 | 1971-10-12 | Inst Gas Technology | Muffle-type gas-fired self-cleaning oven |
DE2305025A1 (de) * | 1973-02-02 | 1974-08-08 | Burger Eisenwerke Ag | Verfahren zum selbsttaetigen reinigen der innenwaende eines brat- oder backofens |
DE2329024B2 (de) * | 1973-06-07 | 1978-09-21 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Herd, insbesondere Herd mit pyrolytischer Selbstreinigung des Bratraumes |
GB1503314A (en) * | 1975-05-08 | 1978-03-08 | British Gas Corp | Forced convection ovens |
US4163894A (en) * | 1977-12-08 | 1979-08-07 | Chambers Corporation | Oven having a diluting ventilation system |
-
1984
- 1984-02-06 FR FR8401889A patent/FR2559241B1/fr not_active Expired
-
1985
- 1985-02-05 EP EP85440003A patent/EP0154595B2/de not_active Expired - Lifetime
- 1985-02-05 DE DE8585440003T patent/DE3569976D1/de not_active Expired
- 1985-02-06 US US06/698,897 patent/US4654508A/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0942235B1 (de) * | 1998-03-09 | 2003-11-05 | BSH Bosch und Siemens Hausgeräte GmbH | Backofen mit Sauggehäuse |
EP2474787B1 (de) | 2012-04-13 | 2016-10-12 | V-Zug AG | Dampfgargerät |
Also Published As
Publication number | Publication date |
---|---|
FR2559241B1 (fr) | 1986-12-12 |
DE3569976D1 (en) | 1989-06-08 |
US4654508A (en) | 1987-03-31 |
EP0154595B1 (de) | 1989-05-03 |
EP0154595A1 (de) | 1985-09-11 |
FR2559241A1 (fr) | 1985-08-09 |
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