The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1979
Filed:
Dec. 09, 1976
Applicant:
Inventors:
Shoichi Tsuzi, Hoya, JP;
Kiyoshi Aoki, Chiba, JP;
Takeshi Sakai, Chiba, JP;
Hiroshige Ikebe, Kashiwa, JP;
Dogi So, Tokyo, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
F23L / ;
U.S. Cl.
CPC ...
431115 ;
Abstract
Disclosed is a furnace whose NOx emission may be reduced to a minimum degree so far unattainable in any prior art furnaces by optimumly controlling the ratio of exhaust gas mixed with the combustion air to be supplied to the burners to the exhaust gas to be mixed with the two-stage combustion air which is admitted through air nozzles into the combustion chamber and also by optimumly controlling the distribution of the two-stage combustion air in the combustion chamber depending upon the operating conditions. The present invention may be applied to any types of furnaces.