Patent ID: 8127549

Claim:
A burner comprising: an air hole member provided with a plurality of air holes arranged in a plurality of concentric rows on a combustion gas flow directional upstream side of a chamber adapted to generate combustion gas; and fuel nozzles adapted to jet out fuel to the corresponding air holes from a fuel jetting-out directional upstream side of said air hole member, an inlet center of each of the air holes being located on a central axis of a corresponding one of said fuel nozzles; wherein the air holes of said air hole member are each formed to have a central axis inclined relative to a central axis of the burner; a first fuel nozzle has a leading end portion configured to be able to suppress turbulence of air-flow flowing on an outer circumferential side of the first fuel nozzle, and a tip of the first fuel nozzle is disposed on a fuel jetting-out directional downstream side of the air hole inlet; and a second fuel nozzle has a tip disposed on a fuel jetting-out directional upstream side of the air hole inlet.