| 摘要 |
<p>A fluent fuel burner capable of efficiently overcoming high system resistances to combustion gas flow by providing a construction which includes a housing that contains at least one combustion air fan whose rotor is straddled by airflow channels extending along its radial sides and discharging through the fan outlet into a by-pass which communicates with a collecting chamber located within range of the burner discharge nozzle and the diffuser. The collecting chamber includes a guide element which cooperates with the by-pass to virtually provide an axial approach to the diffuser thereby resulting in a compact construction with very low airflow pressure losses.</p> |
