Forced draft burner
A fuel burner is described which consists of: a housing having a rectangular base and a pair of opposed side walls; a cylindrical blast tube extending from the housing adapted to be connected to a source of forced-draft combustion air; an inner tube substantially concentric with and spaced from the blast tube, defining an annular space therebetween, the inner tube extending from within the housing through the blast tube; the pair of substantially concentric tubes having inlet and outlet ends, the inlet end of the inner tube having a substantially 90/sup 0/ bend whereby the inlet end of the inner tube abuts a housing side wall inner side, and the outlet end of the inner tube extending beyond the outlet end of the blast tube, the inner tube outlet end having a closed end with equispaced discharge outlets formed around the periphery of the inner tube extending beyond the blast tube forming a nozzle for discharging fuel radially outwardly from the inner tube; means for removably connecting the inner tube inlet end to the housing side wall inner side, the housing side wall having an opening therein for communicating a source of fluid fuel to the inner tube; vane means positioned within the annular space, the vane means being fastened to the inner tube at a pre-selected point between the inlet and outlet ends; a circular spinner blade mounted at the outlet end of the blast tube, the spinner blade having a diameter smaller than the diameter of the blast tube to define a narrow annular slot adjacent the blast tube and the spinner blade having a plurality of vanes about its periphery, for the discharge of an annular flow of outer air with a swirling flow of inner air; the inner tube being axially removable from the blast tube and housing without substantially changing the position of the vanes in relation to the inner tube; and means to ignite the fuel.
- Assignee:
- Pendell Boiler, Ltd., Toronto
- Patent Number(s):
- US 4595355
- OSTI ID:
- 5500403
- Resource Relation:
- Patent File Date: Filed date 29 Jan 1985
- Country of Publication:
- United States
- Language:
- English
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