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. 12, 2013
Filed:
Feb. 26, 2009
Jamine Lee, Burlington, MA (US);
Neil Goldstein, Belmont, MA (US);
Jason A. Cline, Burlington, MA (US);
Fritz Bien, Concord, MA (US);
Timothy C. Perkins, Billerica, MA (US);
Brian F. Gregor, Waltham, MA (US);
Jamine Lee, Burlington, MA (US);
Neil Goldstein, Belmont, MA (US);
Jason A. Cline, Burlington, MA (US);
Fritz Bien, Concord, MA (US);
Timothy C. Perkins, Billerica, MA (US);
Brian F. Gregor, Waltham, MA (US);
Spectral Sciences, Inc., Burlington, MA (US);
Abstract
A system for controlling the uniformity of combustion over a range of operating conditions in a combustor with a plurality of fuel nozzles. The system includes a number of optical sensors, each sensor comprising an optical probe that collects naturally occurring optical radiation emanating from a segment of the combustor or combustor exhaust, and at least one transducer that receives the radiation collected by the probes, compares the intensity of collected radiation from each sensor in a plurality of spectral pass-bands that are indicative of the fuel/air ratio in the combustor segments, and produces output signals that are indicative of the state of combustion in the combustor segments. A control system receives the output signals from the transducers and in response controls the fuel flow to the fuel nozzles to achieve an output from each of the sensors that has been determined to be indicative of a predetermined state of combustion.