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:
Oct. 17, 2017
Filed:
Oct. 14, 2014
Siemens Energy, Inc., Orlando, FL (US);
Heiko Claussen, North Brunswick, NJ (US);
Nancy H. Ulerich, Longwood, FL (US);
Zainul Momin, Winter Park, FL (US);
Patrick Ronald Flohr, Mülheim a.d. Ruhr, DE;
SIEMENS ENERGY, INC., Orlando, FL (US);
SIEMENS AKTIENGESELLSCHAFT, München, DE;
Abstract
The state of a flame in a gas turbine engine combustor is acoustically monitored using a dynamic pressure sensor within the combustor. A spectral pattern of a dynamic pressure sensor output signal from the sensor is compared with a characteristic frequency pattern that includes information about an acoustic pattern of the flame and information about acoustic signal canceling due to reflections within the combustor. The spectral pattern may also be compared with a characteristic frequency pattern including information about a flame-out condition in the combustor.