Invention Grant
- Patent Title: System and method for inspecting fan blade tip clearance relative to an abradable fan case
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Application No.: US17667793Application Date: 2022-02-09
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Publication No.: US11885228B2Publication Date: 2024-01-30
- Inventor: Subramanya Shankar , Marc Christopfel , Brian G. Quinn , Omar A. Ramirez , Sean M. O′Melia
- Applicant: General Electric Company
- Applicant Address: US NY Schenectady
- Assignee: General Electric Company
- Current Assignee: General Electric Company
- Current Assignee Address: US NY Schenectady
- Agency: Carter, DeLuca & Farrell LLP
- Agent George Likourezos; Jason B. Scher
- Main IPC: F01D21/00
- IPC: F01D21/00 ; F01D11/14 ; G01B11/14 ; G01C9/02

Abstract:
A system and method for inspecting fan blade clearances in a fan stator module are presented. The method includes rotating a fan rotor assembly that includes an attached bracket situated between adjacent fan blades connected to the fan rotor assembly. The bracket includes a laser module and an inclinometer configured to measure a circumferential position of the laser module. The method further includes projecting a laser beam from the laser module to the fan case to determine a distance measurement between the laser module and the fan case at multiple circumferential points around the fan case. The distance measurement and circumferential position data is processed by a computing device to determine a clearance distance between a fan blade and the fan case.
Public/Granted literature
- US20230250730A1 SYSTEM AND METHOD FOR INSPECTING FAN BLADE TIP CLEARANCE RELATIVE TO AN ABRADABLE FAN CASE Public/Granted day:2023-08-10
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