Patent ID: 6895759
Filing Date: 2005-05-24
Classification: F23D,F23R

Abstract:
1. A premix burner, suitable for forming at least one stable flame front in a combustion chamber, for use with means for supplying fuel and air to said premix burner, and with means for mixing fuel and air to form a fuel/air mixture for subsequent combustion in the combustion chamber, said burner comprising: a premix burner casing, having an upstream end and a downstream end defining a flow direction, said burner casing comprising a tube which is open at an upstream end, has a transition contour, and is in fluid communication with the combustion chamber at a tube downstream end via the transition contour, for flowing air therethrough; a burner lance comprising an inner tube having an outer wall and projecting into the interior of the premix burner casing on the premix burner casing upstream end to form an annular flow duct with the burner casing, the burner lance having: