| 主权项 |
1. A gas burner for a cooking appliance, comprising:
a burner body comprising a first combustion chamber with a first gas inlet and a second combustion chamber with a second gas inlet, the first and second combustion chambers being separate and being independently supplied with combustible gas via the first and second gas inlets, respectively, the first and second combustion chambers cooperating to form a substantially annular outer flame ring and a substantially annular inner flame ring; an electric igniter being configured to ignite the inner flame ring; first and second burner caps for independently closing off a top of each of the first and second combustion chambers, respectively, so as to substantially preclude the escape of combustible gas therefrom; a plurality of flame channels disposed between the first and second combustion chambers and configured to trigger ignition of the outer flame ring subsequent to ignition of the inner flame ring; and at least one transfer burner port providing gas flow communication with the combustible gas in one of the first and second combustion chambers that is ignited within one of the plurality of flame channels by the inner flame ring, wherein the outer flame ring is subsequently ignited by the at least one transfer burner port, wherein the first and second burner caps are configured to extend a distance over the plurality flame channels in an at least partially covering relationship to at least partially retain said combustible gas within said respective flame channel, and wherein the first and second burner caps are further configured to provide an upper opening for each of the plurality of flame channels, and wherein the upper opening provides fluid communication between the flame channels and an external environment and is configured to reduce flame flash during ignition of the outer flame ring, and wherein each of the flame channels is defined by opposing side walls extending along a channel axis, and the plurality of flame channels are arranged in an opposed manner such that the respective channel axes are substantially coaxial, and wherein at least one transfer burner port extends through at least one side wall of each of the plurality of flame channels, and is arranged at an angle relative to the respective channel axis, and wherein the angle of each transfer burner port is arranged to position an outlet thereof relatively closer to the outer flame ring than the inner flame ring. |
