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:
Jan. 14, 1997
Filed:
Apr. 10, 1995
John F Hurley, Easton, CT (US);
Edward O Hartel, Orange, CT (US);
Combustion Components Associates, Inc., Monroe, CT (US);
Abstract
For reducing pollutant generation in a tangentially fired furnace, a method and apparatus for modification of a main air-fuel compartment. An extender dish for mounting on the discharge face of the compartment has a wide projection to extend across the discharge face half portion closer to the axis of the fireball in the furnace firing chamber and a narrow projection to extend across the discharge face half portion further from the fireball axis. Preferably a flow restricting plate is also provided to extend across a part of the discharge face portion closer to the axis of the fireball. These air restricting means cause a portion of the combustion air from the main air-fuel compartment discharge face to be directed outside the fireball therein reducing oxygen concentration and flame temperature thereby lowering pollutant generation. Working in concert with auxiliary air compartments, this method and apparatus are most efficient in pollutant reduction at low furnace loads where most pollution reduction is required.