To improve a swozzle-type burner so as to be operable with liquid fuel without water injection for NOx reduction or an air passage for atomizing liquid fuel.
The burner comprises an outer peripheral wall, a burner center body, and a fuel/air premixer including an air inlet, a gas fuel injection hole, a liquid fuel injection opening and an annular mixing passage 3. The fuel/air premixer selectively mixes gas fuel and air or liquid fuel and air within the annular mixing passage, and comprises a swozzle assembly downstream of the air inlet. The swozzle assembly includes swozzle assembly turning vanes, and each vane includes an internal gas fuel passage communicating with the gas fuel injection hole, and a gas fuel inlet for introducing gas fuel into the internal gas fuel passage. The swozzle assembly further comprises an internal liquid fuel passage communicating with the liquid fuel injection opening, and a liquid fuel inlet for introducing liquid fuel into the internal liquid fuel passage.
NADKARNI VAIBHAV
VIJ ATUL KUMAR
Hirokazu Ogura
Toshihisa Kurokawa
Arakawa Satoshi