Burner for a cooking appliance
AssigneesBSH Home Appliances Corporation, BSH Hausgeräte GmbH
InventorsCharles Hanna, Brian Silva, Tyson White
Life of this patent
Estimating the term…
Abstract
Aspects and features of a burner for a cooking appliance include a first plate defining flame ports arranged in flow-sharing groups around a periphery of a combustion surface and a second plate coextensive with the first plate. Each plate is contoured so that the plates define an annular void within the burner. The annular void is fluidly coupled to the flame ports. In some aspects, each flow-sharing group includes clusters of flame ports, with each cluster including flame ports of two different diameters. The plates can each be made using the same tool such as a die, stamp, or mold, and the burner can be sized and installed in a cooking appliance so that it extends to cover a large portion of a wall of the cooking cavity of the appliance.
Claims20
A burner for a cooking appliance, the burner comprising:
- a first continuous plate having a first unbroken, planar central expanse surrounded by a first outer portion, the first plate defining a plurality of flame ports arranged in a plurality of flow-sharing groups on a face of a peripheral combustion surface;
- a second continuous plate having a second unbroken, planar central expanse surrounded by a second outer portion, the second plate coextensive with the first plate, wherein respective outer edges of the first plate and the second plate are coupled to each other such that the respective central expanses face each other;
- and
- wherein the outer portions of the first plate and the second plate are contoured to define an annular void that is within the burner and that is fluidly coupled to the plurality of flame ports, and an overall thickness of the burner is greater at the outer portions than at the central expanses.
A cooking appliance comprising:
- a housing defining a cooking cavity;
- and
- a burner in or on the housing sized and arranged so that at least one dimension of the burner is substantially coextensive with a wall of the cooking cavity, the burner further comprising:
- a cavity-facing first plate defining a plurality of flame ports arranged in a plurality of flow-sharing groups on a face of a peripheral combustion surface;
- and
- a housing-facing second plate couple to the first plate along an outer perimeter, wherein at least one of the cavity-facing first plate or the housing-facing second plate is contoured to be concave to define an annular void within the burner fluidly coupled to the plurality of flame ports;
- wherein the first and second plates include respective unbroken, planar central expanses spanning an inner perimeter of the annular void;
- and
- wherein an overall thickness of the burner is greater at the annular void than at the central expanses.
A method of producing a burner for a cooking appliance, the method comprising:
- forming a first plate of the burner from sheet metal using a tool so as to include a first concave contour running parallel to an edge of the first plate, leaving a first unbroken, planar central expanse surrounded by the first concave contour;
- forming a second plate of the burner from the sheet metal using the tool so that the second plate includes a second unbroken, planar expanse surrounded by a second concave contour running parallel to an edge of the second plate;
- forming flame ports in the first plate of the burner, the flame ports arranged in a plurality of flow-sharing groups on a face of a peripheral combustion surface of the first plate;
- rotating one of the first plate or the second plate about an axis to mirror another of the first plate or the second plate;
- and
- coupling the first plate to the second plate along an outer perimeter to form an annular void in the burner such that the central expanses face each other and the flame ports are fluidly coupled to the annular void;
- and
- wherein an overall thickness of the burner is greater at the annular void than at the central expanses.
Dependencies are inferred from the claim text.