EP0608670A2 - Four à gaz avec ventilation à haut rendement pour cuisinières - Google Patents

Four à gaz avec ventilation à haut rendement pour cuisinières Download PDF

Info

Publication number
EP0608670A2
EP0608670A2 EP93830499A EP93830499A EP0608670A2 EP 0608670 A2 EP0608670 A2 EP 0608670A2 EP 93830499 A EP93830499 A EP 93830499A EP 93830499 A EP93830499 A EP 93830499A EP 0608670 A2 EP0608670 A2 EP 0608670A2
Authority
EP
European Patent Office
Prior art keywords
chamber
slots
plate
high yield
gas oven
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Withdrawn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
EP93830499A
Other languages
German (de)
English (en)
Other versions
EP0608670A3 (fr
Inventor
Alberto Bacchiocchi
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.)
Fime - Fabbrica Italiana Motori Elettrici - Srl
Original Assignee
Fime - Fabbrica Italiana Motori Elettrici - Srl
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 Fime - Fabbrica Italiana Motori Elettrici - Srl filed Critical Fime - Fabbrica Italiana Motori Elettrici - Srl
Publication of EP0608670A2 publication Critical patent/EP0608670A2/fr
Publication of EP0608670A3 publication Critical patent/EP0608670A3/fr
Withdrawn legal-status Critical Current

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
    • F24C15/32—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

  • This design patent application concerns a ventilated gas oven for cookers having a high yield both in terms of the maximum obtainable temperatures and cooking times.
  • the first problem is the risk of accidental extinction of the burner flame while the second problem is the possible alteration of the gas and primary air mixture, namely that utilized for the combustible mixture; this consequently necessitates careful control and set up of the combustion process.
  • Ventilated gas ovens currently available on the market do not provide for the input of ambient air, but involve merely the circulation of hot air in the baking chamber by means of a standard exhaust fan which also recycles the air.
  • the purpose of this invention is to design a ventilated gas oven requiring less time to reach the operating temperature and providing higher maximum temperatures, with respect to current models.
  • the rear side of the airspace communicates with the base of a manifold abutting against the rear wall of the baking chamber, with slots at the centre and at the top which provide access to the baking chamber.
  • a centrifugal type fat is mounted at the back of the oven, whose suction inlet communicates with said manifold while the supply outlet leads to a pressurized chamber whose left and right ends communicate with the interior of the baking cell.
  • the bottom of the baking chamber according to this invention consists of two overlying and slightly spaced sheet plates, the bottom plate being in direct contact with the flame of the burner below.
  • the bottom plate features a number of slots at the front through which ambient air is drawn and consequently immediately reaches very high temperatures (in the region of approx. 430°C); this very hot air flows into the above manifold from which it is drawn together with a part of the hot air from the baking chamber, by means of the above centrifugal fan which forces into the chamber through the slots designed specifically for this purpose on the sides of the pressurized chamber.
  • the oven according to the invention consists of a conventional cube shaped baking chamber (1) constructed in box-shaped sheet plate, closed off at the front by a door (2) having a glass window (2a).
  • a conventional burner (3) is fitted on the bottom of this chamber (1) whose flames communicate directly with the bottom surface of the overlying plate (4) which seals the bottom of the baking chamber (1).
  • said plate (4) consists of two overlying slightly spaced sheet plates which create a space (4a) between the same into which air flows from beneath through the slots (4b) provided for this purpose along the front edge of the bottom sheet plate.
  • said airspace (4a) leads to a manifold (5) abutting against the internal face of the rear wall (1a) of the chamber (1), for a length equal almost to the width of said wall (1a).
  • Said manifold (5) communicates with the interior of the chamber (1) by means of slots (5a) along the top edge and by means of a large circular slot (5b) at the centre.
  • the exhaust fan (6) mounted on the back of the rear wall (1a) of the chamber (1) is housed in a pressurized chamber (6a) which extends transversely along the width of the rear wall (1a) and communicates with the interior of the chamber (1) by means of a series of narrow vertical slots (7) on the two sides, on the left and on the right, of said wall (1a).
  • the top edge of pressurized chamber (8a) features a pair of ascending pipes (8) for discharging a part of the hot air laden with odours from the food during baking, to the exterior.
  • the hot air from the chamber (1) thanks to the suction of the exhaust fan (6), flows into the manifold (5) via the top slots (5a) and the centre slot (5b) of the manifold, where it mixes with the hot ambient air from the airspace (4a), where, as mentioned previously, the ambient air is drawn through the slots (4b); it is worthy of note that the ambient air reaches the slots (4b) pre-heated thanks to the fact that it passes through the burner (3) housing.
  • LCC and LIC show the flow lines of the chamber-manifold and airspace-manifold.
  • fig. 2 shows that there are dividing baffles (4c) inside airspace (4a) which provide a zig-zag route for the pipes so as to increase the time the air remains within the airspace and consequently increase its temperature increment.
  • the hot air from the chamber (1) and the very hot air from the airspace (4a) are drawn simultaneously by the manifold (5) by means of the exhaust fan (6) which discharges the mixed air into the pressurized chamber (6a), from which most of the hot air mixture can return into the baking chamber through the above slots (7), while the remainder of the mixture flows into the pipes (8) and is then discharged to the exterior.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
EP93830499A 1993-01-27 1993-12-13 Four à gaz avec ventilation à haut rendement pour cuisinières. Withdrawn EP0608670A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMC930003 1993-01-27
IT93MC000003A IT1267036B1 (it) 1993-01-27 1993-01-27 Forno a gas per cucine di tipo ventilato, ad alto rendimento

Publications (2)

Publication Number Publication Date
EP0608670A2 true EP0608670A2 (fr) 1994-08-03
EP0608670A3 EP0608670A3 (fr) 1995-02-08

Family

ID=11356654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93830499A Withdrawn EP0608670A3 (fr) 1993-01-27 1993-12-13 Four à gaz avec ventilation à haut rendement pour cuisinières.

Country Status (3)

Country Link
EP (1) EP0608670A3 (fr)
IT (1) IT1267036B1 (fr)
PL (1) PL302017A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754922A1 (fr) * 1995-07-17 1997-01-22 Egon Kulbach Four combiné à convection et au gaz

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067951A1 (fr) * 1981-06-22 1982-12-29 G.S. Blodgett Co., Inc. Appareil de chauffage à circulation d'air forcée et méthode de conduite d'un tel appareil
DE3304059A1 (de) * 1983-02-07 1984-08-09 Frank'sche Eisenwerke Ag, 6340 Dillenburg Gasbetriebener mehrfunktionsbackofen
DE2950946C2 (de) * 1979-12-18 1984-08-09 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Backofen mit Umluftgebläse und Grillheizkörper
EP0580940A2 (fr) * 1992-07-27 1994-02-02 BOSCH-SIEMENS HAUSGERÄTE GmbH Four de cuisson

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2950946C2 (de) * 1979-12-18 1984-08-09 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Backofen mit Umluftgebläse und Grillheizkörper
EP0067951A1 (fr) * 1981-06-22 1982-12-29 G.S. Blodgett Co., Inc. Appareil de chauffage à circulation d'air forcée et méthode de conduite d'un tel appareil
DE3304059A1 (de) * 1983-02-07 1984-08-09 Frank'sche Eisenwerke Ag, 6340 Dillenburg Gasbetriebener mehrfunktionsbackofen
EP0580940A2 (fr) * 1992-07-27 1994-02-02 BOSCH-SIEMENS HAUSGERÄTE GmbH Four de cuisson

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0754922A1 (fr) * 1995-07-17 1997-01-22 Egon Kulbach Four combiné à convection et au gaz

Also Published As

Publication number Publication date
ITMC930003A0 (it) 1993-01-27
IT1267036B1 (it) 1997-01-24
EP0608670A3 (fr) 1995-02-08
ITMC930003A1 (it) 1994-07-27
PL302017A1 (en) 1994-08-08

Similar Documents

Publication Publication Date Title
US5655511A (en) Gas fired convection oven
US7422009B2 (en) Gas “true” convection bake oven
CA1238796A (fr) Friteuse
US4375213A (en) Self-clean oven
US3626922A (en) Forced convection oven
US3499430A (en) High temperature oven structure
US4109636A (en) Forced convection ovens
GB1426367A (en) Gas-heated oven for heating foodstuffs
US5479916A (en) Low profile gas burner fireplace table
US3785364A (en) Smooth top range
CA2327433A1 (fr) Appareil de cuisson a gaz avec debit isole d'air de combustion et de refroidissement
US4373504A (en) Gas burner convection oven
US4106474A (en) Heat conserving space heater
US4651709A (en) Fuel burning stove
US4648381A (en) Gas cooking oven
EP0608670A2 (fr) Four à gaz avec ventilation à haut rendement pour cuisinières
US5329915A (en) Gas fireplace capable of being installed without masonry work
GB2039029A (en) A gas oven with two oven compartments
US3624743A (en) Gas-cooking oven with oven scavenging means
US3496926A (en) Gas burner pilot control
CN217383018U (zh) 一种户外柴火炉二次燃烧辅助结构
GB1344856A (en) Hot air type cooking devices
GB1421251A (en) Cooking oven
US3695811A (en) Pilot and main fuel gas supply means for pressurized gas-fired space heater
CN211534088U (zh) 烤炉

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT

17P Request for examination filed

Effective date: 19950721

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

17Q First examination report despatched

Effective date: 19970717

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19980701