| 摘要 |
A burner unit comprising three simple subassemblies which may be readily assembled to form the completed burner unit. The subassemblies include a front housing assembly including a front disk and a front tube; a back housing assembly including a back disk and a back tube; and a burner subassembly including a burner nozzle and a control assembly offset with respect to the central axis of the burner nozzle. The burner is assembled by inserting the burner nozzle into the inboard end of the front tube of the front housing subassembly to position the burner nozzle, in coaxial relation within the front tube and position the control assembly in an offset position relative to the axis of the front tube and the burner nozzle, whereafter the inboard end of the back tube of the back housing subassembly is telescoped over the inboard end of the front tube of the front housing subassembly and a suitable dust cover is positioned over the outer peripheries of the disks of the front and back housing subassemblies to complete the enclosure. Coacting slots and cutouts in the inboard ends of the telescoped tubes coact to define an opening allowing the piping interconnecting the burner nozzle and the control assembly to pass outwardly through the telescoped tubes. |
