CPC Subgroup
F23C 5/32 to obtain rotating flames, i.e. flames moving helically or spirally
Full Title
Disposition of burners with respect to the combustion chamber or to one another; Mounting of burners in combustion apparatus (F23C1/00, F23C15/00 take precedence) > Disposition of burners > to obtain rotating flames, i.e. flames moving helically or spirally