Triple flame section burner

• US 8,747,108 B2
• Filed: 12/16/2010
• Issued: 06/10/2014
• Est. Priority Date: 12/18/2009
• Status: Active Grant

• Current Assignee: MABE SA de CV (Controladora MABE SA de CV)
• Original Assignee: MABE SA de CV (Controladora MABE SA de CV)
• Inventors: Lona Santoyo, Jose Arturo, Arias Del Campo, Ernesto, Cabrera Botello, Roberto
• Primary Examiner(s): Savani, Avinash
• Assistant Examiner(s): Hailey, III, John C
• Application Number:
  US12/970,311
• Publication Number:
  US 20110151385A1
• Time in Patent Office: 1,272 Days
• Field of Search: 431/2, 431/284, 431/285, 431/354, 126/39.E, 126/39.B, 126/39.K, 126/39.H
• US Class Current: 431/284
• CPC Class Codes: F23D 14/06 with radial outlets at the burner head
• CPC Class Codes: F23D 2900/14062 for cooking ranges having multiple flame rings
• CPC Class Codes: F23D 2900/14063 for cooking ranges having one flame ring fed by multiple venturis

Abstract

The present invention relates to the field of burners, particularly in burners intended for household use, such as stoves. A three ring burner is described, which produces longer and more inclined flames through which a more efficient heating is accomplished; combustion ports in the rings with straight or helicoid arrangements; where the inner ring can function in conjunction with or independently from the other two flame rings, thus controlling the heating intensity and the flame by means of controlling the velocity of the gas-air current; as main parts comprising; a burner head, which contains three concentric flame rings, one inner ring, one intermediate ring and one outer ring, each flame ring containing combustion ports, the collection of combustion ports are helicoid both in their inner ring as well as the outer ring, two lids on the burner head, one inner and the other outer; one cover for the burners which forms the surface of the heating apparatus; Venturi ducts on the lower part of the burner head; a support firmly joined to the surface of the heating apparatus, in this support are lodged Venturi ducts from the burner head; a gas distributor lodged in the lower part of the support, where the gas distributor has three gas exits, two laterals and one central.

Claims

1. A burner having at least two concentric flame sections, the burner comprising:

a burner head, which contains the at least two concentric flame sections, wherein each section comprises an intermediate segment, an outer segment and a main channel located between the outer segment and the intermediate segment, wherein each segment comprises respective combustion ports, the respective combustion ports of the outer segment comprising a helicoid structure, which defines an inclination to produce inclined flames, the combustion ports of the intermediate segment comprising a straight structure, wherein each combustion port of the intermediate segment comprises a labyrinth;

a flame moving chamber disposed between each flame section, wherein the flame sections are covered by a lid;

at least one Venturi duct in each flame section with an exit to the main channel; and

at least one exit disposed on a lower surface of the burner head to aerate the burner head, wherein the combustion ports comprise a main combustion port having a cross-sectional area defined by a plurality of steps, the plurality of steps defining a slope sequence arranged to control a velocity of a combustion mixture flowing there through, the slope sequence defined by the plurality of steps comprising a first slope in a range from 10°

to 30°

, a second slope in a range from 0°

to 15°

, a third slope in a range from 30°

to 80° and

a fourth slope in a range from 0°

to 15°

, wherein the combustion ports of the central burner head define an inclination, wherein the inclination of the burner head and the inclination of the central burner are arranged in a clockwise direction or in a counter-clockwise direction, and the inclination directions in both burners is the same or opposite with respect to one another.

2. The burner according to claim 1, wherein the burner further comprises:

a support joined to a surface of a heating element, wherein each Venturi duct is disposed in the support;

a gas distributor disposed in a lower part of the support, the gas distributor including a gas exit for each Venturi duct; and

a gas nozzle exit in each Venturi duct.

3. The burner according to claim 1, wherein the burner includes a central burner head joined to a remaining portion of the burner head by at least one arm, wherein the central burner head comprises a lid, a Venturi duct and a plurality of combustion ports.

4. The burner according to claim 1, wherein each labyrinth comprises respective walls or flow restrictors, wherein each labyrinth is located upstream from the combustion ports of the intermediate segment.

5. The burner according to claim 1, wherein the flame moving chambers have a radial stair-stepped combustion port, with at least two mini-combustion ports arranged to feed a combustion mixture.

6. The burner according to claim 2, wherein the support is circular and joined in a fixed manner to a burner cover, wherein the support comprises at least two spaces which project towards the lower part of the support, wherein the support further comprises two lateral spaces and one central space arranged to communicate between the lateral spaces and placed in a diametric axis of the support, the lateral spaces are hinged by vertical walls, wherein a respective lower part of each lateral space is open, wherein the central space has no walls, wherein in an assembled condition one or more lateral Venturi ducts are disposed in the lateral spaces.

7. The burner according to claim 2, wherein the support is sealed or without apertures, except for an upper part thereof, wherein an air volume is trapped, and said air volume is maintained due to a separation between the burner head and the support, wherein spaces in a lower part of the support feed a respective distal end of said at least one Venturi duct, wherein the spaces in the support are covered so that air enters through a top of a burner cover or wherein the support comprises a spider structure arranged as a support for the nozzles and a tube aligned with said at least one Venturi duct.

8. The burner according to claim 2, wherein the gas distributor comprises nozzles in at least two of its exits.

9. The burner according to claim 2, wherein the burner comprises a base and a wall in the intermediate segment configured to form an edge underneath the combustion ports, wherein the edge defines a bevel or a transition.

10. The burner according to claim 1, wherein the burner has an area of combustion ports for dissipation of flow velocity.

11. A burner having at least two concentric flame sections, the burner comprising:

a burner head, which contains the at least two concentric flame sections, wherein each section comprises an intermediate segment, an outer segment and a main channel located between the outer segment and the intermediate segment, wherein each segment comprises respective combustion ports, wherein the combustion ports of the outer segment and the combustion ports of the intermediate segment are straight;

a flame moving chamber between each section;

at least one Venturi duct in each flame section with an exit to the main channel;

at least one exit disposed on a lower surface of the burner head to aerate the burner head; and

a barrier rail disposed between the combustion ports of the outer segment and proximate to the exit of said at least one Venturi duct, wherein the combustion ports comprise a main combustion port having a cross-sectional area defined by a plurality of steps, the plurality of steps defining a slope sequence arranged to control a velocity of a combustion mixture passing there through, the slope sequence defined by the plurality of steps comprising a first slope in a range from 10°

to 30°

, a second slope in a range from 0°

to 15°

, a third slope in a range from 30°

to 80° and

a fourth slope in a range from 0°

to 15, wherein the combustion ports of the central burner allow a clockwise, anti-clockwise or bidirectional flame inclination.

12. The burner according to claim 11, wherein the burner further comprises:

a support joined to a surface of a heating element, the support arranged to accommodate said at least one Venturi duct;

a gas distributor disposed in a lower part of the support, the gas distributor including a gas exit for each Venturi duct; and

a gas nozzle exit in each Venturi duct.

13. The burner according to claim 11, wherein the burner includes a central burner head joined to a remaining portion of the burner head by at least one arm, wherein the central burner head has a lid, a Venturi duct and a plurality of combustion ports.

14. The burner according to claim 11, wherein the flame moving chambers have a radial stair-stepped combustion port, with at least two mini-combustion ports arranged to feed a combustion mixture.

15. The burner according to claim 12, wherein the support is circular and joined in a fixed manner to a burner cover, wherein the support comprises at least two spaces which project towards the lower part of the support, wherein the support further comprises two lateral spaces and one central space arranged to communicate between the two lateral spaces and placed in a diametric axis of the support, the lateral spaces are hinged by vertical walls, wherein a respective lower part is open, wherein the central space has no walls, wherein in an assembled condition one or more lateral Venturi ducts are disposed in the lateral spaces.

16. The burner according to claim 12, wherein the support is f-sealed or without apertures, except for an upper part thereof, wherein an air volume is trapped and said air volume is maintained due to a separation between the burner head and the support, wherein spaces in a lower part of the support feed a distal end of said at least one Venturi duct, wherein the spaces in the support are covered so that air enters through a top of a burner cover or wherein the support comprises a spider structure arranged as a support for the nozzles and a tubes aligned with said at least one Venturi duct.

17. The burner according to claim 12, wherein the gas distributor comprises nozzles in at least two of its exits.

18. The burner according to claim 12, wherein the burner comprises a base and a wall in the intermediate segment configured to form an edge underneath the combustion ports, wherein the edge defines a bevel or a transition.

19. An igniting method for a burner having at least two flame sections, wherein each section comprise an outer segment and an intermediate segment, the outer segments configured to produce one of inclined flames and straight flames, with a spark plug in close proximity to an inner ring, the method comprising:

lighting the inner ring with the spark plug;

moving the flame of the inner ring to the intermediate segments;

moving the flame of the intermediate segments to the outer segments;

arranging in a main combustion port a plurality of steps which define a cross sectional area in said main combustion port; and

controlling a velocity of a combustion mixture passing through the main combustion port based on a slope sequence defined by the plurality of steps, wherein the slope sequence defined by the plurality of steps comprises a first slope in a range from 10°

to 30°

, a second slope in a range from 0°

to 15°

, a third slope in a range from 30°

to 80° and

a fourth slope in a range from 0°

to 15, wherein the combustion ports allow a clockwise, anti-clockwise or bidirectional flame inclination.

20. The method according to claim 19, wherein the moving of the flame between the intermediate segments and the outer segments occurs by way of a moving chamber between each one of the sections.