| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent adhesion of soot on a combustion cone outer surface. <P>SOLUTION: In the burner, a fuel injection nozzle 1 is arranged in a center part, and air nozzles 6 are arranged in a periphery of the fuel injection nozzle 1. The combustion cone 7 with a tapered structure such that a downstream side opening diameter becomes smaller than an upstream side opening diameter is provided in a downstream side of installation positions of the fuel injection nozzle 1 and the air nozzles 6. Fuel injected from the fuel injection nozzle 1 and air injected from the air nozzles 6 are mixed in the combustion cone 7. Combustion is carried out while injecting fuel-air mixture gas into a combustion chamber from a combustion cone downstream side opening 8. In the self-recirculating burner, by generating a vortex flow of one part of the fuel-air mixture gas injected from the combustion cone downstream side opening 8 in an outer side of the combustion cone 7, combustion progressed combustion gas is circulated into a fuel-gas mixture gas flow. A combustion cone side wall opening 9 sending out air from a combustion cone interior to an exterior is provided on a side wall of the combustion cone 7. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
