US 12,410,727 B2
Propulsor blade imaging assembly method for an aircraft propulsion system
Scott Goyette, Moosup, CT (US); Gregory S. Hagen, Glastonbury, CT (US); Zaffir A. Chaudhry, South Glastonbury, CT (US); Paul Attridge, Colchester, CT (US); Janet Shaw, Tolland, CT (US); David L. Lincoln, Cromwell, CT (US); and Jeffrey P. King, Coventry, CT (US)
Assigned to RTX Corporation, Farmington, CT (US)
Filed by RTX Corporation, Farmington, CT (US)
Filed on Nov. 18, 2024, as Appl. No. 18/951,129.
Application 18/951,129 is a division of application No. 18/136,115, filed on Apr. 18, 2023, granted, now 12,146,416.
Prior Publication US 2025/0075631 A1, Mar. 6, 2025
Int. Cl. F01D 25/00 (2006.01); B08B 5/02 (2006.01); F01D 21/00 (2006.01); H04N 7/18 (2006.01); H04N 23/90 (2023.01)
CPC F01D 21/003 (2013.01) [H04N 7/188 (2013.01); H04N 23/90 (2023.01); F05D 2260/83 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for inspection of a plurality of propulsor blades for an aircraft propulsion system, the method comprising:
rotating the plurality of propulsor blades about a rotational axis at a first rotation speed;
shutting down the aircraft propulsion system;
capturing image data for each propulsor blade of the plurality of propulsor blades for the shutdown aircraft propulsion system subsequent to a rotation speed of the plurality of propulsor blades decreasing to or below a second rotation speed which is less than the first rotation speed and greater than zero (0) RPM;
identifying a presence or an absence of damage for each propulsor blade of the plurality of propulsor blades using the captured image data; and
wherein capturing the image data for each propulsor blade of the plurality of propulsor blades includes capturing the image data for each propulsor blade of the plurality of propulsor blades with a camera disposed at a propulsor nose cone axially adjacent the plurality of propulsor blades, the propulsor nose cone rotationally fixed relative to the rotational axis.