Patent ID: 6027330
Filing Date: 2000-02-22
Classification: F23C,F23D

Abstract:
A burner assembly producing low NO.sub.x emissions having a longitudinal axis and comprising means forming an annulus about the axis and defining a downstream-facing, annular discharge opening; means for flowing combustion air in a downstream direction through the annulus; a tubular fuel gas header disposed in the annulus, located upstream of the discharge opening, having a tubular wall and including a multiplicity of orifices extending through the tubular wall and being oriented for discharging directionalized fuel gas streams through the orifices into the annulus, each of the gas streams including a radial component, an axial component, and a tangential component relative to a circle concentric with the axis; and energizing means imparting sufficient kinetic energy to the fuel gas streams so that they penetrate combustion air flowing through the annulus and mix with the air into a substantially uniform fuel gas-air mixture for discharge of the mixture from the downstream opening of the annulus.