| 摘要 |
PURPOSE:To miniaturize a combustion chamber and a fan in a burner, by dividing a burner port into two parts, and by feeding air to flames formed on the burner ports, from both sides of the secondary and the tertiary air ports. CONSTITUTION:The secondary air is injected into flames formed on burner ports 7, from both sides of the secondary air ports 8, while the tertiary air, being injected into the flames from the tertiary air ports 12 is injected, passing through the center passage. Accordingly, the air can be sufficiently mixed with unburnt component in the center part of flames, even if the injection speed to feed the air is small, and the length of flames can be shortened. With such arrangement, the sizes of a fan and a combustion chamber can be miniaturized at the same time, because low blast pressure is enough for the burner, when the injection speed of fed air is decreased. |
