Browdy and Neimark
Metal-brazing pulse burner
 In a metal-brazing pulse burner, a gas/air mixing pipe being comprised of a pipe member having a diameter larger than those of a combustion air supply pipe and a mixed gas supply pipe, and an air injection nozzle connected to the combustion air supply pipe to project therefrom along a central line of the pipe member, the nozzle having an injection opening at its tip end which opening is located nearby an opening of the combustion gas supply pipe opened at a sidewall of the pipe member, thereby a gas in the combustion gas supply pipe is drawn and supplied by air flow injected from the air injection nozzle. With this arrangement, a pilot flame is not blown off and quenched, and a stable pulse combustion can always be conducted. 
Y F
Y10S F23C
additional inventional
Makoto
Nishimura