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:
Feb. 14, 2012
Filed:
Jun. 01, 2006
Hamid Sarv, Canton, OH (US);
Albert D. Larue, Uniontown, OH (US);
William J. Kahle, Canal Fulton, OH (US);
Alan N. Sayre, North Canton, OH (US);
Daniel R. Rowley, Alliance, OH (US);
Hamid Sarv, Canton, OH (US);
Albert D. LaRue, Uniontown, OH (US);
William J. Kahle, Canal Fulton, OH (US);
Alan N. Sayre, North Canton, OH (US);
Daniel R. Rowley, Alliance, OH (US);
Abstract
A large diameter mid-zone air separation cone is provided for decreasing NOx during burner operation by expanding the internal recirculation zone (IRZ) at the burner exit. The mid-zone air separation cone has a short cylindrical leading edge that fits in the outer air zone of a burner. The mid-zone air separation cone splits the outer air zone secondary air flow into two equal or unequal streams depending on the position of the air separation cone with respect to the outer air zone, and deflects a portion of the secondary air flow radially outward. Since the radial position of the air separation cone is farther from the burner centerline, the IRZ size is expanded and NOx emissions are minimized.