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WO2014147239A1 - Appareil d'étanchéité et four dans lequel celui-ci est utilisé - Google Patents

Appareil d'étanchéité et four dans lequel celui-ci est utilisé Download PDF

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Publication number
WO2014147239A1
WO2014147239A1 PCT/EP2014/055738 EP2014055738W WO2014147239A1 WO 2014147239 A1 WO2014147239 A1 WO 2014147239A1 EP 2014055738 W EP2014055738 W EP 2014055738W WO 2014147239 A1 WO2014147239 A1 WO 2014147239A1
Authority
WO
WIPO (PCT)
Prior art keywords
gasket
shaft
cooking chamber
opening
sealing apparatus
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.)
Ceased
Application number
PCT/EP2014/055738
Other languages
English (en)
Inventor
Mehmet Zihni Gurlek
Erol Karaer
Oguz TAN
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.)
Arcelik AS
Original Assignee
Arcelik AS
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 Arcelik AS filed Critical Arcelik AS
Publication of WO2014147239A1 publication Critical patent/WO2014147239A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F24C15/32—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings
    • F16J15/3204—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip
    • F16J15/3224—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings with at least one lip capable of accommodating changes in distances or misalignment between the surfaces, e.g. able to compensate for defaults of eccentricity or angular deviations

Definitions

  • the present invention relates to an oven wherein hot air circulation is provided inside the cooking chamber by means of a fan.
  • the circulation of hot air inside the cooking chamber is provided by a motor and a fan disposed on the wall of the cooking chamber.
  • the fan that is disposed inside the cooking chamber is moved by the motor shaft.
  • An opening on the rear wall of the cooking chamber is required in order to connect the motor shaft to the fan inside the cooking chamber. This opening causes the hot and humid air to leak outside from the cooking chamber.
  • the hot air and the vapor leaking outside causes the energy consumption of the oven to increase and the motor to malfunction.
  • Hot air should be prevented from leaking through the opening by providing leak-proofing at the opening. Therefore, sealing gaskets are used between the said opening in ovens and the motor shaft, that provide leak-proofing between the cooking chamber and the outside environment.
  • the said sealing gaskets become insufficient in providing leak-proofing by losing their ability of sealing in the course of time due to the effect of heat and the vibration of the motor shaft.
  • the sealing apparatus causes the shaft hub to be strained. The noise level increases due to straining and the motor that drives the fan may malfunction.
  • the aim of the present invention is the realization of a sealing apparatus that can be easily mounted, that effectively provides leak-proofing between the cooking chamber and the outside environment and thus both enables energy saving and prevents malfunctioning of the motor that drives the fan, and the realization of an oven wherein the sealing apparatus is used.
  • the sealing apparatus realized in order to attain the aim of the present invention and explicated in the attached claims, is suitable to provide leak-proofing between the cooking chamber of an oven and the outside environment, and comprises a gasket disposed between the motor and the fan, around the shaft that extends from an opening on a wall of the cooking chamber into the cooking chamber, whereof the portion located around the shaft changes shape elastically in the radial direction and vertically to the shaft axis, and a fixing means that fixes the gasket in the rotational direction of the shaft and on the wall encircling the opening.
  • the oven realized in order to attain the aim of the present invention and explicated in the attached claims, comprises the sealing apparatus of the present invention.
  • the sealing apparatus of the present invention is preferably mounted to the rear wall of the oven cooking chamber.
  • the gasket located in the sealing apparatus of the present invention when mounted to an oven wherein the shaft axis is eccentric with respect to the center of the opening, changes shape elastically by being compressed or by being stretched in the radial direction the shaft vibrates, compensates the eccentricity of the shaft and effectively provides leak-proofing between the cooking chamber and the outside environment.
  • the fixing means located in the sealing apparatus enables the gasket to be mounted to the opening so as not to be dislodged in the course of time.
  • the gasket comprises flexible fins that contact the periphery of the shaft.
  • the fins compensate the eccentricity of the shaft axis, thus preventing the hot air from leaking through the gap between the shaft and the opening.
  • the gasket has a brushed structure and the brush tips that extend from its periphery towards the interior contact the periphery of the shaft.
  • the fixing means comprises a flange seated on the opening arranged at the wall of the cooking chamber and a pipe connected to the flange, having larger diameter than the shaft and through which the shaft passes.
  • the shaft extends freely through this pipe towards the interior of the cooking chamber and is connected to the fan.
  • a gap is left between the pipe and the shaft that is enough to compensate the eccentricity of the axis from the center of the opening such that the shaft does not hit the inner wall of the pipe while the motor operates.
  • the fixing means has screws and the gasket and the flange are fixed to the wall of the cooking chamber with screws.
  • the fixing means has claws disposed on the flange and retainers disposed between the gasket and the flange, and the gasket is grouped with the flange by means of the claws disposed on the flange and fixed to the cooking chamber wall by means of the retainers.
  • the fixing means is configured as a bayonet clutch comprising a ring-shaped frame wherein the gasket is mounted, feet disposed on the frame and holes opened into the wall wherein the feet are inserted.
  • the sealing apparatus of the present invention prevents the hot air from leaking from the cooking chamber to the outside environment and decreases the noise level by attenuating the vibrations of the shaft that enables the motor to drive the fan. Furthermore, the motor is prevented from malfunctioning by preventing the humid air leaving the cooking chamber from reaching the motor.
  • Figure 1 – is the schematic view of an oven.
  • Figure 2 – is the partial perspective view showing the openings on the rear wall of the oven cooking chamber and the position of the motor shaft in the opening.
  • Figure 3 – is the partial perspective view of the sealing apparatus connected to the rear wall of the oven cooking chamber in an embodiment of the present invention.
  • Figure 4 – is the partial perspective view of the sealing apparatus in Figure 3 from another angle.
  • Figure 5 — is the partial perspective view of the sealing apparatus connected to the rear wall of the oven cooking chamber in another embodiment of the present invention.
  • Figure 6 — is the partial perspective view of the sealing apparatus in Figure 5 from another angle.
  • Figure 7 – is the partial perspective view of a sealing apparatus that comprises the fixing means configured as a bayonet clutch and that is connected to the rear wall of the oven cooking chamber.
  • Figure 8 – is the partial perspective view of a sealing apparatus that comprises the fixing means configured as a groove and that is connected to the rear wall of the oven cooking chamber.
  • the sealing apparatus (50) is suitable for providing leak-proofing between the outside environment and a cooking chamber (1) disposed inside an oven (100), wherein the cooking process is performed, and comprises
  • a shaft (4) that extends into the cooking chamber (1) through one or more than one opening (3, 103) arranged on one or more than one wall (2, 102) defining the cooking chamber (1) and that enables a fan (16) disposed in the cooking chamber (1) to be driven by means of a motor (17), and a gasket (5) disposed at the opening (3, 103) around the shaft (4).
  • the sealing apparatus (50) of the present invention comprises,
  • a fixing means (6) that enables the gasket (5) to be fixed on the wall (2, 102) surrounding the opening (3, 103) and that prevents the gasket (5) from moving in the direction of the shaft (4) axis and dislodging from the opening (3, 103).
  • the fixing means (6) comprises a pipe (7) through which the shaft (4) passes and a flange (8) fixed to one end of the pipe (7), seated on the wall (2, 102) surrounding the opening (3, 103), and fixes the gasket (5) to the wall (2, 102) by means of the flange (8) ( Figure 3 and Figure 4).
  • the gasket (5), the flange (8) and the pipe (7) are grouped and preferably mounted to the rear wall (2, 102) of the oven (100).
  • the fixing means (6) has screws (9) that fix the flange (8) and the gasket (5) seated on the flange (8) together on the wall (2, 102) ( Figure 3 and Figure 4).
  • the gasket (5), the flange (8) and the pipe (7) are grouped and preferably fixed to the rear wall (2, 102) of the oven (100) with the screws (9).
  • the fixing means (6) comprises
  • the gasket (5), the flange (8) and the pipe (7) are grouped and preferably fixed to the rear wall (2, 102) of the oven (100) by means of the retainers (11).
  • the fixing means (6) is configured like a bayonet clutch having
  • the frame (12) is preferably fixed to the rear wall (2, 102) of the cooking chamber (1).
  • the sealing apparatus (50) comprises the gasket (5) and the fixing means (6) produced as a single piece.
  • the fixing means (6) is shaped as a circular groove formed around the gasket (5) and seated all around the edge of the opening (3, 103) from the inside ( Figure 8).
  • the sealing apparatus (50) is fixed preferably to the opening (3, 103) at the rear wall (2, 102) of the cooking chamber (1) by means of the groove-shaped fixing means (6) surrounding the periphery of the gasket (5).
  • the gasket (5) is produced from silicone.
  • the gasket (5) has flexible fins (15) that contact the periphery of the fan shaft (4) ( Figure 3 to Figure 6).
  • the gasket (5) is shaped as a brush, the tips of which contact the fan shaft (4) all around.
  • the oven (100) comprises
  • the sealing apparatus (50) of the present invention provides leak-proofing in the case the shaft (4) axis is eccentric with respect to the center of the opening (3, 103), preventing heat loss from the cooking chamber (1) of the oven (100) to the outside environment and decreases the noise level by attenuating the vibrations of the fan shaft (4).
  • the fixing means (6) located in the sealing apparatus (50) enables the gasket (5) to be firmly mounted to the rear wall (2, 102) of the cooking chamber (1) in the rotational axis direction of the fan shaft (4) and prevents the gasket (5) from being dislodged from the opening (3, 103) by being deformed due to vibration.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electric Stoves And Ranges (AREA)
  • Electric Ovens (AREA)

Abstract

La présente invention porte sur un appareil d'étanchéité (50), lequel appareil est adapté à produire une étanchéité aux fuites entre une chambre de cuisson (1) d'un four (100) et l'environnement extérieur, et lequel a un joint d'étanchéité (5) disposé autour d'un arbre (4) qui s'étend dans la chambre de cuisson (1) par passage à travers une ouverture (3, 103) disposée sur une paroi (2, 102) de la chambre de cuisson (1) et des moyens de fixation (6) qui permettent au joint d'étanchéité (5) d'être monté sur la paroi (2, 102) autour de l'ouverture (3, 103).
PCT/EP2014/055738 2013-03-22 2014-03-21 Appareil d'étanchéité et four dans lequel celui-ci est utilisé Ceased WO2014147239A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TRA2013/03515 2013-03-22
TR201303515 2013-03-22

Publications (1)

Publication Number Publication Date
WO2014147239A1 true WO2014147239A1 (fr) 2014-09-25

Family

ID=50342331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/055738 Ceased WO2014147239A1 (fr) 2013-03-22 2014-03-21 Appareil d'étanchéité et four dans lequel celui-ci est utilisé

Country Status (1)

Country Link
WO (1) WO2014147239A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786531A1 (fr) * 2019-09-02 2021-03-03 Arçelik Anonim Sirketi Dispositif de cuisson comprenant un élément d'étanchéité
EP3816519A1 (fr) * 2019-11-01 2021-05-05 Arçelik Anonim Sirketi Dispositif de cuisson

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323730A (en) * 1941-01-27 1943-07-06 Frick Co Shaft seal
DE3622547C1 (en) * 1986-07-04 1987-04-23 Eloma Gmbh Baking, cooking or grilling appliance
US6237207B1 (en) * 1995-07-25 2001-05-29 Cr Elastomere Gmbh Assembly aid for machine parts, in particular for housing closure units
US20030173744A1 (en) * 2002-02-05 2003-09-18 Duramax Marine, Llc Marine shaft seal with lip seal, bearing and gasket
WO2005003604A1 (fr) * 2003-07-04 2005-01-13 Carl Freudenberg Kg Couvercle de fermeture de carter
CA2712030A1 (fr) 2008-01-15 2009-07-23 Premark Feg L.L.C. Four de rotisserie autonettoyant avec dispositif d'etancheite d'arbre de ventilateur
EP2175178A1 (fr) * 2007-08-08 2010-04-14 Sharp Kabushiki Kaisha Garniture d'etancheite, dispositif de cuisson a la vapeur et procede de fabrication de ce dispositif
US20100201074A1 (en) * 2009-01-12 2010-08-12 Haynes George P Gas seal for aerospace engines and the like
WO2012082805A2 (fr) * 2010-12-13 2012-06-21 Sealeze A Unit Of Jason, Inc. Ensemble joint-brosse d'arbre de dispositif haute-température, joint-brosse, et agencement de montage
US20120306161A1 (en) * 2011-05-31 2012-12-06 Crown Iron Works Company Multi-segment seal retainer for rotating shafts

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2323730A (en) * 1941-01-27 1943-07-06 Frick Co Shaft seal
DE3622547C1 (en) * 1986-07-04 1987-04-23 Eloma Gmbh Baking, cooking or grilling appliance
US6237207B1 (en) * 1995-07-25 2001-05-29 Cr Elastomere Gmbh Assembly aid for machine parts, in particular for housing closure units
US20030173744A1 (en) * 2002-02-05 2003-09-18 Duramax Marine, Llc Marine shaft seal with lip seal, bearing and gasket
WO2005003604A1 (fr) * 2003-07-04 2005-01-13 Carl Freudenberg Kg Couvercle de fermeture de carter
EP2175178A1 (fr) * 2007-08-08 2010-04-14 Sharp Kabushiki Kaisha Garniture d'etancheite, dispositif de cuisson a la vapeur et procede de fabrication de ce dispositif
CA2712030A1 (fr) 2008-01-15 2009-07-23 Premark Feg L.L.C. Four de rotisserie autonettoyant avec dispositif d'etancheite d'arbre de ventilateur
US20100201074A1 (en) * 2009-01-12 2010-08-12 Haynes George P Gas seal for aerospace engines and the like
WO2012082805A2 (fr) * 2010-12-13 2012-06-21 Sealeze A Unit Of Jason, Inc. Ensemble joint-brosse d'arbre de dispositif haute-température, joint-brosse, et agencement de montage
US20120306161A1 (en) * 2011-05-31 2012-12-06 Crown Iron Works Company Multi-segment seal retainer for rotating shafts

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3786531A1 (fr) * 2019-09-02 2021-03-03 Arçelik Anonim Sirketi Dispositif de cuisson comprenant un élément d'étanchéité
EP3816519A1 (fr) * 2019-11-01 2021-05-05 Arçelik Anonim Sirketi Dispositif de cuisson

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