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. 17, 2015
Filed:
Mar. 11, 2013
Applicant:
Snecma, Paris, FR;
Inventors:
Geoffroy Nicq, Thomery, FR;
Valerio Gerez, Yerres, FR;
Assignee:
SNECMA, Paris, FR;
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G01N 3/30 (2006.01); F01D 21/00 (2006.01); F01D 21/14 (2006.01);
U.S. Cl.
CPC ...
G01N 3/30 (2013.01); F01D 21/003 (2013.01); F01D 21/14 (2013.01);
Abstract
A method and an on-board system for detecting impact on an impeller wheel of an aircraft engine. Deflection signals representative of the deflections on the blades of the impeller wheel are acquired. Each of the deflection signals is correlated with a pulse signal typical of an impact on a sound blade at the rotation frequency of the engine, in order to identify impacts on the impeller wheel. The impact signals are extracted from among the deflection signals. The impact signals are transmitted to the ground in order that the signals are analyzed to detect defects on the blades of the impeller wheel.