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:
Nov. 23, 2004
Filed:
Mar. 28, 2003
David K. Faymon, Phoenix, AZ (US);
Darrell C. Mays, Lakewood, CA (US);
Yufei Xiong, Phoenix, AZ (US);
Honeywell International, Inc., Morristown, NJ (US);
Abstract
A method and system for surge detection within a gas turbine engine, comprises: measuring the compressor discharge pressure (CDP) of the gas turbine over a period of time; determining a time derivative (CDP ) of the measured (CDP) correcting the CDP for altitude, (CDP ); estimating a short-term average of CDP ; estimating a short-term average of CDP ; and determining a short-term variance of corrected CDP rate of change (CDP ) based upon the short-term average of CDP and the short-term average of CDP . The method and system then compares the short-term variance of corrected CDP rate of change with a pre-determined threshold (CDP ) and signals an output when CDP >CDP . The method and system provides a signal of a surge within the gas turbine engine when CDP remains>CDP for pre-determined period of time.