PURPOSE: To avoid contact of a flame with the end injection unit of an air passage and to prevent the overheating of the injection unit by forming a cooling air passage at the outer periphery of a burner combustion chamber, and providing the injection unit of the passage toward a direction perpendicular to the burner shaft at the injection outlet of the chamber.
CONSTITUTION: A cooling air passage 2 is formed at the outer periphery of a burner combustion chamber 1, and the end injection unit 3 of the passage 2 is formed to protrude toward a direction perpendicular to the burner axis at the injection outlet 4 of the chamber 1. The air is injected in the direction perpendicular to the burner axis from the unit 3 of the passage 2, and a flame is throttled according to the momentum of the air. That is, the injecting flame to be injected from the outlet 4 of the chamber 1 is throttled in the flame diameter by the momentum of the cooling air injected in the perpendicular direction without using a special tip throttle. Thus, the contact of the flame with the unit 3 of the air passage, thereby preventing the overheating of the unit 3.
| JP2024063702 | Premix combustion device |
KATO ISAO
YUMOTO NORIO
HOSOYAMA NEKKI KK