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:
May. 07, 1985
Filed:
Dec. 12, 1983
Applicant:
Inventors:
Shigeru Azuhata, Hitachi, JP;
Norio Arashi, Hitachi, JP;
Kiyoshi Narato, Ibaraki, JP;
Tooru Inada, Hitachi, JP;
Kenichi Souma, Hitachi, JP;
Keizou Ohtsuka, Hitachi, JP;
Yukio Hishinuma, Hitachi, JP;
Tadahisa Masai, Kure, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23K / ;
U.S. Cl.
CPC ...
110347 ; 110262 ; 110263 ; 110264 ;
Abstract
There are the primary fuel nozzle for jetting the first coal in the fine powder form with an air ratio up to 1, and the secondary fuel nozzle for jetting the second coal in the fine powder form with an air ratio at least 1 from the outer circumferential portion of the primary fuel nozzle. Swirl means are located at the top of the secondary fuel nozzle for swirling the second coal.