Patent ID: 6024083
Filing Date: 2000-02-15
Classification: F23D,F23L,F27D,Y02E

Abstract:
A nozzle adapted for installation in a burner attached to a fuel supply and a combustion air supply the burner directing fuel and air from the fuel and air supplies downstream along a longitudinal axis through the nozzle to mix downstream of the nozzle, the nozzle comprising:a collar adapted for attachment to the fuel supply;an outlet tube extending from the collar in the longitudinal axis the outlet tube having a passage extending through the outlet tube for fluid communication through the collar; anda mixing portion extending radially from the collar, a plurality of combustion air ports extending through the mixing portion each combustion air port being located at a radial distance from the longitudinal axis a plane thereby being formed by the combination of the longitudinal axis and the radial distance for each combustion air port each combustion air port being angled radially inwards at an axial angle relative to the longitudinal axis and towards the longitudinal axis each combustion air port being skewed at a tangential angle relative to its plane and therefore not lying in its plane for producing a swirling effect, the mixing portion further including first, second and third sets of combustion air ports the first set having at least one first combustion air port disposed at a first axial angle and at a first radial distance from the horizontal axis, the second set having at least one second combustion air port disposed at a second axial angle and at a second radial distance from the horizontal axis, the third set having at least one third combustion air port disposed at a third axial angle and at a third radial distance from the horizontal axis, the first second and third axial angles being different, the first, second and third radial distances being different.