| 摘要 |
<p>The tip has a burner tip portion (21) provided with a burner tip wall (21A). The burner tip portion is provided with a hollow space that extends to an end wall (47). The burner tip wall is provided with an inner side that faces toward the hollow space. A displacement body (15) is arranged in the hollow space. The displacement body is provided with an outer side that faces toward the inner side of the burner tip wall. A flow channel (20) is formed between the inner side of the burner tip wall and the outer side of the displacement body.</p> |
