초록 ▼

A retention head for the end of the burner nozzle housing on a waste oil furnace controlS the flow of combustion air relative to the flame produced by the burner nozzle. The retention head is formed as a cup-shaped member that mounts in a detachable manner on the outside of the burner nozzle housing

A retention head for the end of the burner nozzle housing on a waste oil furnace controlS the flow of combustion air relative to the flame produced by the burner nozzle. The retention head is formed as a cup-shaped member that mounts in a detachable manner on the outside of the burner nozzle housing. The retention head has an operative face having a central opening through which a portion of the combustion air can flow and support the flame passing through the opening. A solid ring defining the central opening forces air into circumferential vented slots around the perimeter of the retention head. The vented slots have angled flaps that direct the combustion air into a spiraled flow pattern circumferentially around the flame. The retention head has an inwardly curved periphery to help direct combustion air into an inward pattern surrounding the flame. Slotted openings allow an adjustable positioning of the retention head relative to the burner nozzle housing to permit the head to be properly positioned in order to keep the spiraled flow of combustion air parallel to the orientation of the flame.

대표청구항 ▼

[ Having thus described the invention, what is claimed is:] [1.] A retention head for a burner housing of a multi-oil furnace to control the flow of combustion air into a burner chamber to support a flame, said multi-oil furnace including a burner nozzle having a nozzle tip from which said flame is

[ Having thus described the invention, what is claimed is:] [1.] A retention head for a burner housing of a multi-oil furnace to control the flow of combustion air into a burner chamber to support a flame, said multi-oil furnace including a burner nozzle having a nozzle tip from which said flame is created during operation of said burner nozzle, comprising:a generally cylindrical body member having a shape corresponding to said burner housing to permit mounting thereof on said burner housing and including,a base portion engageable with said burner housing to define a major axis of said retention head; andan inwardly tapered end portion terminating in an axially concentric opening through which said flame can extend during operation of said multi-oil furnace; anda face plate oriented generally orthogonally to said major axis and including,a solid ring portion defining an axially concentric opening, said nozzle tip projecting through said opening in said face plate such that said nozzle tip is positioned forwardly of the solid ring of said face plate; andan outer peripheral portion having a plurality of vented openings therethrough, each said vented opening having a deflector member oriented angularly relative to said major axis to deflect combustion air into a spiral pattern generally concentric with said major axis.