| 摘要 |
<p>A premixing nozzle (800) has a swirler vane (300) in a nozzle barrel (10) for stirring combustion air. The swirler vane (300) is attached at one end thereof to the nozzle barrel (10) and connected at the other end to a hub (100). The front end (200a) of a fuel nozzle shaft (200) is conical and part of the front end (200a) is disposed in the hub (100). Combustion air flows into the hub (100) from between the front end (200a) of the fuel nozzle shaft (200) and the upstream end (100b) of the hub (100), passing between the front end (200a) and the inner peripheral surface of the hub (100) to flow downstream of the hub (100).</p> |
