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
  • F24C3/00—Stoves or ranges for gaseous fuels
  • F24C3/12—Arrangement or mounting of control or safety devices
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
  • F23L11/00—Arrangements of valves or dampers after the fire
  • F23L11/005—Arrangements of valves or dampers after the fire for closing the flue during interruption of burner function
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N1/00—Regulating fuel supply
  • F23N1/06—Regulating fuel supply conjointly with draught
  • F23N1/062—Regulating fuel supply conjointly with draught using electronic means
• • 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
  • F24C15/001—Details arrangements for discharging combustion gases
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N2221/00—Pretreatment or prehandling
  • F23N2221/10—Analysing fuel properties, e.g. density, calorific
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
  • F23N—REGULATING OR CONTROLLING COMBUSTION
  • F23N2225/00—Measuring
  • F23N2225/04—Measuring pressure
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
  • Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Definitions

• the present invention relates to a gas range oven wherein energy saving is provided.
• inflammable gases such as methane (CH4) known as natural gas or butane (C4H10) known as oil gas are used.
• CH4 methane
• C4H10 butane
• the discharge of gases and some of the heat from the exhaust duct after the burning in the oven results in thermal losses and the reduction of efficiency. Therefore, the gases discharged from the exhaust duct must be kept under control.
• the duct orifice for example that is optimum for methane gas may not be appropriate for butane gas or vice- versa.
• the cross-sectional area of the duct can be adjusted according to the type of gas; however, when adjustment cannot be made in accordance with the gas this results in inefficient burning and the increase in energy consumption.
• the aim of the present invention is the realization of an oven wherein the efficiency is increased by adjusting the exhaust duct cross- sectional area according to the type of gas used and wherein energy saving is provided.
• inflammable gases such methane, butane having different pressure values are delivered to the gas burners in the oven and on the cooking range and the waste gases and water vapor generated after the burning process in the cooking chamber is discharged out by means of an exhaust duct.
• a pressure sensor is disposed on the gas supply line that detects the pressure value of the said gases such as methane or butane and a shutter is disposed on the exhaust duct that moves by the triggering of the pressure sensor which adjusts the cross-sectional area of the exhaust duct according to the pressure values detected by the pressure sensor in the gas supply line.
• the shutter moves inside the exhaust duct by the triggering of the pressure sensor with the assistance of for example wheels or sliding bearings for adjusting the cross- sectional area of the exhaust duct and thus burning efficiency is increased by forming an exhaust duct orifice that is in accordance with the type of gas used.
• stoppers are disposed on the shutter or on the exhaust duct that enable the shutter moves by being activated by the pressure sensor to remain at positions appropriate for the type of gas thus adjusting the cross- sectional area of the duct.
• one end of the shutter is inside the pressure sensor disposed on the gas supply line and the other end projects from the pressure sensor extending up to the exhaust duct and thus the shutter is directly activated by the pressure sensor.
• an electromechanical motion mechanism such as a step motor is used to activate the shutter according to the pressure value detected by the pressure sensor.
• Figure 1 - is the schematic view of a gas oven.
• the oven (1) wherein flammable gases such as methane (CH4) or butane (C4H10) are used for the energy source, comprises a cooking chamber (2) wherein the cooking process is performed by burning flammable gases, gas burner (4) that provides the burning process inside the cooking chamber (2), a gas supply line (3) that delivers the flammable gases to the gas burner (4) and an exhaust duct (5) for discharging the waste gases and water vapor generated as a result of burning.
• flammable gases such as methane (CH4) or butane (C4H10) are used for the energy source
• the flammable gases used in the oven (1) are supplied with different pressures depending on the type of gas.
• the methane gas delivered to the gas burner (4) in the oven (1) by the gas supply line (3) has approximately 20 mbar pressure value while the butane gas has approximately 30 mbar pressure value.
• the oven (1) of the present invention comprises:
• a pressure sensor (6) disposed on the gas supply line (3) that detects the pressure values of different types of flammable gases delivered to the gas burner (4) by means of the gas supply line (3) and
• a shutter (7) situated on the exhaust duct (5) that moves by the triggering of the pressure sensor (6) and adjusts the cross-sectional area (A) of the exhaust duct (5) according to the pressure value detected by the pressure sensor (6) in the gas supply line (3).
• the gases such as methane, butane delivered to the gas burner (4) in the cooking chamber (2) by the gas supply line (3) have different pressure values.
• the waste gases generated in the cooking chamber (2) as a result of burning are discharged by the exhaust duct (5).
• the pressure values different from each other depending on the entering gas type, are detected by the pressure sensor (6) disposed on the gas supply line (3) and the shutter (7) on the exhaust duct (5) is triggered according to the detected pressure value and moves for example on wheels or sliding bearings for adjusting the cross-sectional area (A) of the exhaust duct (5) to change according to the gas type.
• the shutter (7) when butane gas with 30 mbar pressure is used, the shutter (7), triggered according to 30 mbar pressure detected by the pressure sensor (6), is pushed forwards and moves in the exhaust duct (5) to decrease the wide cross- sectional area (A) of the exhaust duct (5) providing a cross- sectional area (A) suitable for butane gas.
• the shutter (7) when methane gas with 20 mbar pressure is used, the shutter (7), triggered according to 20 mbar pressure detected by the pressure sensor (6), is pushed backwards and increases the narrow cross- sectional area (A) of the exhaust duct (5) providing a cross-sectional area (A) suitable for methane gas.
• the oven (1) comprises one or more stoppers (8, 108) that are disposed on the shutter (7) or on the exhaust duct (5) that enable the shutter (7), moving by being triggered by means of the pressure sensor (6), to remain at positions appropriate for the type of gas thus adjusting the cross- sectional area (A) of the exhaust duct (5).
• one end of the shutter (7) is inside the pressure sensor (6) that is disposed on the gas supply line (3) and the other end projects from the pressure sensor (6) extending up to the exhaust duct (5).
• the shutter (7) is affected with the pressure of the gas in the pressure sensor (6) and thus is directly activated by the pressure sensor (6).
• the oven (1) comprises an electromechanical motion mechanism (9) such as a step motor that moves the shutter (7) according to the pressure value detected by the pressure sensor (6).
• an electromechanical motion mechanism such as a step motor that moves the shutter (7) according to the pressure value detected by the pressure sensor (6).
• the shutter (7) can be moved in the desired amount depending on the pressure value detected by the pressure sensor (6) and the cross-sectional area (A) of the exhaust duct (5) can be precisely adjusted.
• the cross- sectional area (A) of the exhaust duct (5) is adjusted correctly and automatically by the pressure sensor (6) and the shutter (7) whereby energy saving is provided by enhancing the burning efficiency of the oven (1).

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Regulation And Control Of Combustion (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (2)

Families Citing this family (3)

Family Cites Families (6)

• 2007
  • 2007-12-25 EP EP07858138A patent/EP2104805A1/de not_active Withdrawn
  • 2007-12-25 WO PCT/EP2007/064540 patent/WO2008077967A1/en active Application Filing

Non-Patent Citations (1)

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