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. 16, 1978
Filed:
May. 20, 1977
Donald Arthur Smith, Haddam, CT (US);
David Joseph Horan, Westfield, MA (US);
Combustion Engineering, Inc., Windsor, CT (US);
Abstract
A fuel admission assembly for a tangentially fired furnace that utilizes oil, gas, or other utility grade fuels. The assembly disclosed has the ability to achieve a positive control of the air flow through a specially designed swirler. Because of this unique feature of its design, this assembly will permit efficient tangential boiler operation at 5% excess air or less over a fuel turndown ratio of at least 3 to 1 on each assembly. At the same time, it will not produce unacceptable levels of noxious emissions such as oxides of nitrogen, carbonaceous soot or sulfur smuts over its full operating range. Finally, it requires no additional fan head (windbox pressure drop).