US 6,851,420 B2 · Burner with piloting ports

Abstract

A cooking appliance includes burners having ports that are aligned in a defined alignment with respect to an adjacent structure of a burner body or the cooking appliance within a piloting zone so that the adjacent structure guides the formation of a flame kernel at an outlet of the port. The adjacent structure may be ports which also form flame kernels withing the piloting zone of the burner port outlet, a structural portion of the burner body such as an extended lip protruding beyond the burner port or a separate structure such as a flame rod or other target that stabilizes the flame kernels at the burner port outlet. Such structures provide a method for improving the turndown ratio of burners by preventing lifting or backlash of the flame kernels generated at the burner port outlets by aligning the ports in conjunction with an adjacent structure within a piloting zone.

Claims8

Dependent claims

A method for improving turn down ratio of a sealed gas burner having a burner body with a plurality of radially projecting fingers defining a plurality of peripheral ports above an orbicular base with a portion extending beyond the finger sealed to a cooktop comprising:

aligning at least one port of said plurality of peripheral ports to a defined alignment with respect to an adjacent structure positioned within a piloting zone at a proximal end of each finger over said extending portion of said base, wherein said adjacent structure guides formation of a flame kernel at an outlet of said at least one port.

Dependencies are inferred from the claim text.

Burner with piloting ports

Life of this patent

Burner with piloting ports

Life of this patent

Abstract

Claims8