Stall prediction method for axial flow compressor
Patent 6715984 Issued on April 6, 2004. Estimated Expiration Date: 
June 10, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 10, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCompressor stall and surge control using airflow asymmetry measurement Method and apparatus for predicting and stabilizing compressor stall Control system for preventing compressor stall Patent #: 6231306 InventorsAssigneeApplicationNo. 10165927 filed on 06/10/2002US Classes:415/1, METHOD OF OPERATION415/118, WITH INSPECTION, SIGNALING, INDICATING OR MEASURING MEANS415/914DEVICE TO CONTROL BOUNDARY LAYERExaminersPrimary: Nguyen, Ninh H.Attorney, Agent or FirmInternational ClassF01D 2500AbstractIn order to provide a stall prediction method for an axial flow compressor, a high response pressure sensor is provided in a duct wall adjacent to the leading edge of the rotor blade and a rotating stall is predicted by computing autocorrelation of pressure data obtained as a time history data. The initiation of rotating stall is determined when the autocorrelation of the time history data starts dropping rapidly. When it is determined that the rotating stall is imminent, generation of the rotating stall is prevented by taking necessary countermeasures such as to reduce the fuel supply. | |
