WO2005048796A1 - Dispositif pour chauffer des aliments avec de l'air chaud - Google Patents

Dispositif pour chauffer des aliments avec de l'air chaud Download PDF

Info

Publication number
WO2005048796A1
WO2005048796A1 PCT/CH2003/000771 CH0300771W WO2005048796A1 WO 2005048796 A1 WO2005048796 A1 WO 2005048796A1 CH 0300771 W CH0300771 W CH 0300771W WO 2005048796 A1 WO2005048796 A1 WO 2005048796A1
Authority
WO
WIPO (PCT)
Prior art keywords
oven
receptacle
container
heating
hot air
Prior art date
Application number
PCT/CH2003/000771
Other languages
English (en)
Inventor
Patrick Boesch
Thierry Rolland
Original Assignee
Soparfin Sa
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 Soparfin Sa filed Critical Soparfin Sa
Priority to AU2003280273A priority Critical patent/AU2003280273A1/en
Priority to DK03770838T priority patent/DK1686880T3/da
Priority to AT03770838T priority patent/ATE413128T1/de
Priority to ES03770838T priority patent/ES2316832T3/es
Priority to PCT/CH2003/000771 priority patent/WO2005048796A1/fr
Priority to EP03770838A priority patent/EP1686880B1/fr
Priority to PT03770838T priority patent/PT1686880E/pt
Priority to US10/595,893 priority patent/US20070125354A1/en
Priority to CA002547789A priority patent/CA2547789A1/fr
Priority to SI200331498T priority patent/SI1686880T1/sl
Priority to DE60324612T priority patent/DE60324612D1/de
Publication of WO2005048796A1 publication Critical patent/WO2005048796A1/fr

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
    • F24C15/32—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 present invention relates to an oven for heating foodstuff, in particular french fries, by means of hot air circulating in a substantially closed circle, wherein circulation of the air is forced, preferably by a fan or a blower. It in particular relates to an oven which is suited for heating individual portions or a small number of portions within a very short amount of time.
  • the key feature of the invention is therefore the fact that hot air is entering the region in which the foodstuff is to be heated from an upper side, impinges onto the tilted side wall of the container, the tilt angle of which is smaller than 90°, and is thus deviated into the receptacle through the penetrable tilted side wall of the receptacle correspondingly being guided through the foodstuff kept in the receptacle. Due to the fact that the tilt angles ⁇ and ⁇ are different from each other, and due to the fact that is larger than ⁇ , there is provided a region between the receptacle and the container which opens up towards the bottom of the container and/or the receptacle.
  • the receptacle furthermore comprises a horizontal grid portion adjacent to the tilted front grid substantially in the plane of the opening towards the upper side of the receptacle. This horizontal grid portion is then first penetrated prior to entering the region between the two tilted walls.
  • the bottom wall of the container is preferentially spaced from the bottom grid of the receptacle by e.g. 1 centimetre.
  • This nose or protrusion is preferentially made of the same material as the side walls of the receptacle, i.e. may be an extension made of metal grid or the like.
  • a slidable insert into which the receptacle is inserted, and which can be shifted into the oven and thus into the stream of hot air of the oven.
  • the slidable insert into which the container is removably incorporated is drawn out of the oven, the receptacle filled with foodstuff is inserted into the container from the top and thus into this part of the insert, and the whole insert is subsequently shifted back into the main body of the oven, thus moving it into the circulating hot air.
  • the container can be taken out of the insert and cleaned separately.
  • filtering means for the air.
  • These filtering means may be perforated or mesh- like structures made of metal or synthetic material, preferably additionally retaining condensed water present in the circulating hot air.
  • the filtering means can be a semi- permeable membrane permeable to air and steam but impermeable to condensed water. Possible is for example a GoreTex ® membrane.
  • the present invention furthermore relates to a method for heating foodstuff by means of hot air in a substantially closed circle, preferably using an oven as described above.
  • the method is preferentially characterised in that the circulating hot air is heated to a temperature in the range of 180-250° C, preferentially heating a portion of french fries within a time-span in the range of one minute.
  • the foodstuff is not substantially moving within the receptacle, thus avoiding (partial) destruction of the foodstuff.
  • Particularly easy operation is made possible if the heating process is initiated after having read a barcode e.g. provided on the package of the foodstuff to be heated, preferentially indicating particular heating conditions adapted to the foodstuff contained in the package.
  • the oven 1 comprises an upper part, in which the heating cavity 8 as well as the means for the propulsion of the stream of air is located. Propulsion of the air is achieved by a fan 20, which is located in a housing 7.
  • the fan 20 is energised by a motor 6.
  • Such a motor normally has a power in the range of 195 Watt leading to an effective circulation of air of about 200m 3 /h at a static pressure of 500 Pa. In conjunction with the regulated air temperature at the exit of the blower of in the range of 195 to 205 °C this leads to heating of the food within about 2 minutes. If the machine is to be designed in other dimensions for example for taking up more portions, the power as well as the circulation have to be scaled up accordingly.
  • the axis of the motor is arranged parallel to the front side of the oven.
  • the basket 2 furthermore comprises a nose 26, which makes sure that the basket 2, if inserted into the container 4 does not touch the bottom of the container, i.e. that there remains an empty space 13 between the two bottom walls 2b and 4b.
  • This empty space 13 furthermore improves homogeneous and efficient circulation of the air around the basket and homogeneous entry into the basket and through the foodstuff located in the basket.
  • Arrows indicate the dimensions chosen for individual parts of the oven 1, so the length a of the heating cavity 8 is 205 mm, the height b of the heating cavity is 145 mm, the width d of the channel " for entry of air into the heating cavity 8 is 130 millimetre, the height e of the housing for the fan is 265 mm, the width f of this housing is 106 nim, and the width g of the room for the motor is 130mm.
  • FIG 2a shows the basket 2. It can be seen, that there is provided a handle 14, made of a bent thick metal wire, and which, if the basket 2 is. inserted into the container 4 and into the insert 16 in the oven 1 sticks out of the oven. It allows easy handling of the basket for filling it with foodstuff and inserting and removing the basket into and from the oven. It may be slightly bent downwards to facilitate handling, and extends approximately 15 to 20 cm away from the edge of the basket 2.
  • the basket has a depth of 90 mm, and if for the angle ⁇ a value of 35° is chosen, the bottom part of the basket has a length of 60 mm.
  • the basket furthermore has a height of 140mm and a length at its top edge of 160 mm.
  • the horizontal grid portion 3 has a length of approximately 35mm.
  • Figure 2b shows the container 4 if removed from the insert 16.
  • Figure 2c shows the insert 16, which comprises a front wall of or front plate 18 as well as two lateral track rails 17 as means for easy shifting of the insert into and out of the oven 1. It furthermore comprises an opening 19 on the top, adapted to take up the container 4 such that its border 4e comes to lie on top of the edge portion of the insert 16 thus supporting the container 4 in the insert 16.
  • the lateral side walls 4c of the container are spaced from each other by 92mm (depth), the height of the container is 155mm and its length on the bottom side is 230 mm.
  • the opening on the top has a size of 298 x 92 mm.
  • the angle ⁇ is chosen to be 66°.
  • the border 4e has a width of approximately 10-15 mm.
  • Figure 2 d shows a view of the lower housing of the oven and as well as of the top parts of it.
  • a basically rectangular box into which the insert 16 fits and can be shifted into and out of by means of movable rails 15.
  • the heating cavity on the left side is provided with an opening 9 for entry of the air having passed the foodstuff region into the heating cavity 8.
  • the housing 7 for the fan 20 is provided on the right side of the top portion of the oven 1 adapted to take in the air from the heating cavity 8 and to blow it into the lower part via an exit 11.
  • FIG 3 shows the principal air flows in an oven according to another preferred embodiment.
  • the hot air gets heated by means of heating elements 21 along which or through which the hot air is flowing.
  • the surface of these heating elements may have temperatures of about 500° C, while the heating elements 21 are regulated to give rise to a temperature of the air in the range of 200°C. This choice was found to lead to an optimal heating of the foodstuff, but also for user safety reasons higher temperatures should be avoided.
  • the filters 25 and 24 can be metal wire meshes, wherein the metal wires (INOX) have a thickness of 0.5 mm and are spaced from each other by 1.5 mm.
  • INOX metal wires
  • filters can be substituted or supplemented by filters additionally eliminating condensed water from the circulating hot air. This is for example possible by filters with semi-permeable membranes made of polytefrafluoroethylene, like e.g. available under the trade name GoreTex ® . LIST OF REFERENCE NUMERALS

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Drying Of Solid Materials (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • General Preparation And Processing Of Foods (AREA)

Abstract

La présente invention concerne un four (1) pour chauffer des aliments (28), en particulier des frittes (28), au moyen d'air chaud (22, 23) circulant sensiblement en circuit fermé, la circulation de l'air (22, 23) étant forcée, de préférence par un ventilateur (20) ou une soufflerie. On obtient une manière de chauffer particulièrement efficace et rapide, pour des aliments qui sont idéalement croustillants, grâce au fait que: les aliments (28) sont contenus dans au moins un réceptacle (2) dont au moins deux des parois (2a-2d) peuvent être pénétrées par l'air chaud en circulation (22, 23); le réceptacle (2) est au moins partiellement entouré au niveau de ses parois pénétrables (2a-2d), par des parois (4a-4d) d'un récipient (4), un espace étant ménagé entre les parois respectives (2a-2d) du réceptacle et les parois (4a-4d) du récipient (4); l'air chaud (22) pénètre dans le réceptacle (2) et/ou dans le récipient (4) sensiblement depuis un côté supérieur; dans la zone (12) dans laquelle l'air chaud (22) pénètre dans le réceptacle (2) et/ou dans le récipient (4), la paroi latérale (4a) du récipient (4) est inclinée par rapport à un plan horizontal, d'un premier angle (α), et une paroi latérale pénétrable (2a) correspondante du réceptacle (2), est inclinée par rapport audit plan horizontal, d'un second angle (β), le premier angle (α) ayant une valeur supérieure à celle du second angle (β).
PCT/CH2003/000771 2003-11-21 2003-11-21 Dispositif pour chauffer des aliments avec de l'air chaud WO2005048796A1 (fr)

Priority Applications (11)

Application Number Priority Date Filing Date Title
AU2003280273A AU2003280273A1 (en) 2003-11-21 2003-11-21 Device for heating foodstuff with hot air
DK03770838T DK1686880T3 (da) 2003-11-21 2003-11-21 Indretning til at opvarme födevarer med varm luft
AT03770838T ATE413128T1 (de) 2003-11-21 2003-11-21 Vorrichtng zum erhitzen von lebensmitteln mit heissluft
ES03770838T ES2316832T3 (es) 2003-11-21 2003-11-21 Dispositivo para calentar alimentos con aire caliente.
PCT/CH2003/000771 WO2005048796A1 (fr) 2003-11-21 2003-11-21 Dispositif pour chauffer des aliments avec de l'air chaud
EP03770838A EP1686880B1 (fr) 2003-11-21 2003-11-21 Dispositif pour chauffer des aliments avec de l'air chaud
PT03770838T PT1686880E (pt) 2003-11-21 2003-11-21 Dispositivo para o aquecimento de produtos alimentares com ar quente
US10/595,893 US20070125354A1 (en) 2003-11-21 2003-11-21 Device for heating foodstuff with hot air
CA002547789A CA2547789A1 (fr) 2003-11-21 2003-11-21 Dispositif pour chauffer des aliments avec de l'air chaud
SI200331498T SI1686880T1 (sl) 2003-11-21 2003-11-21 Naprava za segrevanje ĺ˝ivil s toplim zrakom
DE60324612T DE60324612D1 (de) 2003-11-21 2003-11-21 Vorrichtng zum erhitzen von lebensmitteln mit heissluft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH2003/000771 WO2005048796A1 (fr) 2003-11-21 2003-11-21 Dispositif pour chauffer des aliments avec de l'air chaud

Publications (1)

Publication Number Publication Date
WO2005048796A1 true WO2005048796A1 (fr) 2005-06-02

Family

ID=34596912

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH2003/000771 WO2005048796A1 (fr) 2003-11-21 2003-11-21 Dispositif pour chauffer des aliments avec de l'air chaud

Country Status (11)

Country Link
US (1) US20070125354A1 (fr)
EP (1) EP1686880B1 (fr)
AT (1) ATE413128T1 (fr)
AU (1) AU2003280273A1 (fr)
CA (1) CA2547789A1 (fr)
DE (1) DE60324612D1 (fr)
DK (1) DK1686880T3 (fr)
ES (1) ES2316832T3 (fr)
PT (1) PT1686880E (fr)
SI (1) SI1686880T1 (fr)
WO (1) WO2005048796A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867264A1 (fr) * 2006-06-16 2007-12-19 Kavaring Cooking Systems B.V. i.o. Appareil pour la préparation de produits alimentaires
ITVI20090174A1 (it) * 2009-07-14 2011-01-15 Giovanni Magnabosco Sistema di pulizia, detersione e sanificazione di contenitori ed apparecchi impiegati nella lavorazione di prodotti alimentari
US9980605B2 (en) 2013-06-04 2018-05-29 Koninklijke Philips N.V. Air fryer
US10264917B2 (en) 2013-06-04 2019-04-23 Koninklijke Philips N.V. Air-based fryer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2449213B (en) 2007-05-18 2011-06-29 Kraft Foods R & D Inc Improvements in or relating to beverage preparation machines and beverage cartridges
DE102008026907A1 (de) * 2008-06-05 2009-12-10 Rational Ag Zubehör und Gargerät mit solch einem Zubehör
CN113633193B (zh) * 2021-09-08 2023-01-31 广东美的厨房电器制造有限公司 壳体组件及具有其的烹饪器具

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865864A (en) * 1985-03-27 1989-09-12 Rijswijck Willem V Air heated oven and heating method
US5445073A (en) 1992-04-14 1995-08-29 Gilwood; William C. Apparatus and process for cooking potatoes
DE4436035A1 (de) * 1994-10-10 1996-04-25 Ubert Gastrotechnik Gmbh Verfahren für die Zubereitung von Lebensmitteln in einem Heißluftofen
US5533444A (en) * 1994-01-07 1996-07-09 Food And Agrosystems, Inc. High air velocity convection oven
US5676870A (en) * 1994-05-25 1997-10-14 Ultravection International, Inc. Convectively-enhanced radiant heat oven
WO1997037575A1 (fr) 1996-04-09 1997-10-16 Hoverdale N.V. Four et procede permettant de finir la cuisson d'un produit alimentaire dans ce four
US5690018A (en) 1993-11-19 1997-11-25 Hansen; Ejner Bjorn Apparatus for heat treatment of a particular food product

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4961849A (en) * 1988-12-19 1990-10-09 Hull Harold L Magnetically attached filter
JP3082574B2 (ja) * 1994-07-25 2000-08-28 株式会社日立製作所 ガス絶縁開閉装置
US5762667A (en) * 1996-06-11 1998-06-09 Amway Corporation Air treatment system
US5970853A (en) * 1998-05-14 1999-10-26 Liberty Food Service Equipment, Inc. Food cooking assembly, restaurant system, and restaurant methods
CA2279957A1 (fr) * 1999-08-09 2001-02-09 Speed Fry Corporation Dispositif et methode de friture automatique d'aliments

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4865864A (en) * 1985-03-27 1989-09-12 Rijswijck Willem V Air heated oven and heating method
US5445073A (en) 1992-04-14 1995-08-29 Gilwood; William C. Apparatus and process for cooking potatoes
US5690018A (en) 1993-11-19 1997-11-25 Hansen; Ejner Bjorn Apparatus for heat treatment of a particular food product
US5533444A (en) * 1994-01-07 1996-07-09 Food And Agrosystems, Inc. High air velocity convection oven
US5676870A (en) * 1994-05-25 1997-10-14 Ultravection International, Inc. Convectively-enhanced radiant heat oven
DE4436035A1 (de) * 1994-10-10 1996-04-25 Ubert Gastrotechnik Gmbh Verfahren für die Zubereitung von Lebensmitteln in einem Heißluftofen
WO1997037575A1 (fr) 1996-04-09 1997-10-16 Hoverdale N.V. Four et procede permettant de finir la cuisson d'un produit alimentaire dans ce four

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1867264A1 (fr) * 2006-06-16 2007-12-19 Kavaring Cooking Systems B.V. i.o. Appareil pour la préparation de produits alimentaires
WO2007144432A1 (fr) * 2006-06-16 2007-12-21 Kavaring Cooking Systems B.V. Appareil permettant de préparer des aliments et organe de guidage d'air pour celui-ci
US8299404B2 (en) 2006-06-16 2012-10-30 Kavaring Cooking Systems B.V. Apparatus for preparing food and air guide member therefor
ITVI20090174A1 (it) * 2009-07-14 2011-01-15 Giovanni Magnabosco Sistema di pulizia, detersione e sanificazione di contenitori ed apparecchi impiegati nella lavorazione di prodotti alimentari
US9980605B2 (en) 2013-06-04 2018-05-29 Koninklijke Philips N.V. Air fryer
US10264917B2 (en) 2013-06-04 2019-04-23 Koninklijke Philips N.V. Air-based fryer

Also Published As

Publication number Publication date
DK1686880T3 (da) 2009-03-16
DE60324612D1 (de) 2008-12-18
CA2547789A1 (fr) 2005-06-02
ES2316832T3 (es) 2009-04-16
US20070125354A1 (en) 2007-06-07
PT1686880E (pt) 2009-02-10
EP1686880A1 (fr) 2006-08-09
SI1686880T1 (sl) 2009-04-30
ATE413128T1 (de) 2008-11-15
AU2003280273A1 (en) 2005-06-08
EP1686880B1 (fr) 2008-11-05

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