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:
Sep. 24, 1996
Filed:
Mar. 06, 1995
Rolf Althaus, Kobe, JP;
Jakob Keller, Redmond, WA (US);
ABB Management AG, Baden, CH;
Abstract
A premixing burner includes a pilot burner formed from two half conical shells and a plurality of main burners arranged around the pilot burner. Each of the main burners is formed with an cylindrical outer wall to contain a main flow. Each of the main burners includes a plurality of vortex generators arranged inside the cylindrical wall about a circumference. In addition, a venturi nozzle is disposed in each of the main burners downstream of the vortex generators. A fuel lance for each of the main burners injects one or both of a gaseous and liquid fuel into the burner as a secondary flow, and an outlet of the lance is positioned to inject the secondary flow in the region of the venturi nozzle having a maximum constriction.