| 摘要 |
A fuel burner is provided for introducing liquid fuel and air into a combustion furnace. An air tube (40) is disposed about a jet tube (36) adapted to supply a fuel-air mixture to the combustion chamber. The annular passage (10) formed between the air tube (40) and the jet tube (36) merges into an annular outlet port (22) defined by a constricting conical wall (24) to converge the flow of primary air into the combustion chamber. Swirler means comprising a plurality of swirler blades (20) are arranged in the annular passage to impart a vortex motion to the converging primary air flow.
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