Patent ID: 6394795
Filing Date: 2002-05-28
Classification: F23D

Abstract:
An air heating burner adapted to be placed in an air flow, the air heating burner comprising:an elongate fuel manifold having a plurality of discharge ports aligned along its length for discharging fuel downstream along a flow axis; pair of mixing plates secured to the manifold on opposing sides of the flow axis, the mixing plates diverging from each other as the mixing plates extend downstream from the manifold, each mixing plate having a plurality of combustion air ports located at various distances downstream from the fuel manifold, the combustion air ports for mixing air flow with fuel flow to form a combustible air-fuel mixture between the mixing plates; and a pair of wings, one for each mixing plate, each wing covering a plurality of combustion air ports located in proximity to the manifold leaving combustion air ports downstream of the wings exposed, the wings spaced from their respective mixing plates to define a pair of chambers, the wings having a plurality of air flow holes for introducing air into the chambers, the air exiting the chambers at a location between the mixing plates beginning immediately downstream of the fuel manifold.