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.:

US 6823821 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 30, 2004

Filed:

Dec. 09, 2003
Applicant:
Inventors:

Toshihiro Kayahara, Matsuyama, JP;

Kazuhiro Tachino, Matsuyama, JP;

Noboru Takubo, Matsuyama, JP;

Kenji Matunari, Matsuyama, JP;

Kyosuke Okubo, Matsuyama, JP;

Assignee:

Miura Co., Ltd., Matsuyama, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F22B 2/306 ;
U.S. Cl.
CPC ...
F22B 2/306 ;
Abstract

Combustion method and apparatus for NO reduction are capable of easily achieving NO reduction to an exhaust NO value of 30 ppm or under. The combustion method is to perform in combination a first NO reduction step for suppressing generated NO value to 60 ppm or under (at 0% O in exhaust gas, dry basis) by a low NO burner, a second NO reduction step for recirculating exhaust gas of the low NO burner to a burning reaction zone formed by the low NO burner, and a third NO reduction step for adding water or steam to the burning reaction zone.


Find Patent Forward Citations

Kayahara, Toshihiro. (2004). Combustion method and apparatus for nox reduction (U.S. Patent No. 6823821). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6823821

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