BURNER BASE

• US 20200132297A1
• Filed: 12/24/2019
• Published: 04/30/2020
• Est. Priority Date: 02/23/2017
• Status: Active Grant

• Current Assignee: Whirlpool Corporation
• Original Assignee: Whirlpool Corporation
• Inventors: Caloca, Victor Gerardo, Geng, Tao, Manrique, Victor, Silva, Ana Katia
• Granted Patent: US 11,808,447 B2
• Time in Patent Office: Days
• CPC Class Codes: F23D 14/06 with radial outlets at the burner head
• CPC Class Codes: F23D 2203/00 Gaseous fuel burners

Abstract

A burner base for a stacked burner assembly to secure a uniform distribution of gas flow. The burner base couples with a top burner cover and together define an internal gas mixture chamber. The burner base includes a barrier structure along a perimeter having a plurality of structural zones. A first structural zone includes a semi-circular barrier structure having a height that is taller at a middle portion than at the end portions. A second structural zone includes an arc structure having a height that is taller than the heights of adjacent structural zone heights. A third structural zone includes a semi-circular structure having a consistent height along the structure. A fourth structural zone includes a non-raised semi-circular structure. The barrier structure is configured to facilitate the distribution of the gas within the mixture chamber.

Claims

1. A burner base, comprising:

an internal perimeter lip;

a perimeter edge defining a barrier lip disposed radially outward of the internal perimeter lip;

a bottom surface extending outwardly from the internal perimeter lip toward the barrier lip, a gas inlet being defined in the bottom surface;

a first barrier structure disposed along the perimeter edge adjacent the gas inlet and having a middle section height above the bottom surface that is greater than an end height above the bottom surface;

a second barrier structure circumferentially adjacent to the first barrier structure and defining an arc inwardly directed from the barrier lip toward the internal perimeter lip; and

a third barrier structure extending circumferentially away from the second barrier structure and defining a constant height along a length of the third barrier structure.

2. The burner base of claim 1, wherein the end height of the first barrier structure includes a first end height above the bottom surface and a second end height, the second end height being defined by a downward slope from the middle section height.

3. The burner base of claim 1, wherein the first barrier structure has a top surface that slopes toward an end of the first barrier structure.

4. The burner base of claim 1, wherein the second barrier structure defines a first interface height adjacent the second barrier structure defined between a bottom surface of the burner base and a top surface of the perimeter edge.

5. The burner base of claim 1, wherein the third barrier structure is radially disposed above the bottom surface at a uniform height.

6. The burner base of claim 1, further including:

a first structural zone that includes the first barrier structure;

a second structural zone that includes the second barrier structure;

a third structural zone that includes the third barrier structure;

wherein;

the bottom surface slopes downwardly from the internal perimeter lip toward the perimeter edge; and

the first, second, and third structural zones are each partially defined by the bottom surface of the burner base.

7. The burner base of claim 1, further including:

an ignition barrier structure defined by a top surface of the perimeter edge and having an arc structure with a peak oriented toward the internal perimeter lip.

8. A gas mixture chamber for a burner base, comprising:

an internal perimeter lip centrally positioned within the gas mixture chamber;

an outer perimeter edge radially outward of the internal perimeter lip;

a bottom surface circumferentially disposed between the internal perimeter lip and outer perimeter edge and downwardly sloping from the internal perimeter lip toward the outer perimeter edge, a gas inlet being defined in the bottom surface; and

a structural zone circumferentially adjacent to the bottom surface and the outer perimeter edge and extending circumferentially away from the gas inlet, the structural zone along with the bottom surface, the internal perimeter lip, and the outer perimeter edge promoting a symmetrical flow of gas away from the gas inlet within the gas mixture chamber.

9. The gas mixture chamber of claim 8, wherein the structural zone defines at least one barrier structure radially disposed along the outer perimeter edge, and wherein the at least one barrier structure is further defined by the bottom surface of the chamber.

10. The gas mixture chamber of claim 9, wherein the at least one barrier structure includes:

a first barrier structure circumferentially adjacent to the outer perimeter edge;

a second barrier structure having a first interface height defined by the first barrier structure, the bottom surface, and a top surface of the outer perimeter edge; and

a third barrier structure adjacent to the second barrier structure and defining a second interface height of the second barrier structure.

11. The gas mixture chamber of claim 10, wherein the second barrier structure has a midpoint height above the bottom surface that is smaller than the first and second interface heights.

12. The gas mixture chamber of claim 10, wherein the at least one barrier structure further defines a fourth barrier structure circumferentially extending from the third barrier structure to define a stepped edge of the third barrier structure, and wherein the third barrier structure is positioned at a height above the fourth barrier structure.

13. The gas mixture chamber of claim 8, wherein the internal perimeter lip, bottom surface, and the structural zone defines a symmetrical flow path of gas away from the gas inlet and within the chamber.

14. The gas mixture chamber of claim 8, wherein a top surface of a barrier structure is defined by the structural zone and lies along a plane with a top surface of the outer perimeter edge.

15. A gas mixture chamber for a burner assembly, comprising:

a first barrier structure disposed along an outer perimeter of the chamber;

a second barrier structure defining a peak oriented toward a center of the chamber, the second barrier structure circumferentially adjacent to the first barrier and promotes a symmetrical flow of gas relative to the first barrier structure;

a third barrier structure radially extending from the second barrier structure to define a planar surface at a height below the second barrier structure; and

a fourth barrier structure radially extending from the third barrier structure to define a stepped portion of the third barrier structure, the fourth barrier structure along with the first, second, and third barrier structures promote a symmetrical flow of gas within the chamber away from an eccentric gas inlet positioned within the chamber.

16. The gas mixture chamber of claim 15, further including:

an ignition barrier structure with an arc and defining a midpoint height, a first end height, and a second height, wherein the midpoint height is smaller than the first and second end heights of the ignition barrier.

17. The gas mixture chamber of claim 15, wherein the second barrier structure defines a midpoint height, a first interface height, and a second interface height, the midpoint height being smaller than the first and second interface heights to define a downward slope of the second barrier structure relative to the outer perimeter edge.

18. The gas mixture chamber of claim 15, wherein the fourth barrier structure circumferentially spans a portion of the outer perimeter edge between the third barrier structure and the ignition barrier.

19. The gas mixture chamber of claim 15, wherein the third barrier structure has a first end defined by the second barrier structure and a second end from which the fourth barrier structure circumferentially extends.

20. The gas mixture chamber of claim 19, wherein the first end defines the third barrier structure at the height below the second barrier structure and the second end defines the stepped edge at a height above the fourth barrier structure.