Patent · US Active

Method for detecting a roughness in an abradable layer in a fan casing

US11753957B2 · kind B2 · utility

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0References

13Claims

0Family size

Assignee

SAFRAN AIRCRAFT ENGINES · FR

Inventors

Clément Bourolleau · Moissy-Cramayel, FR
Alexandre Branco · Schweinfurt, DE
Serge Domingues · Moissy-Cramayel, FR
Vincent Pascal Fiore · Moissy-Cramayel, FR
Anwer Siraj · Moissy-Cramayel, FR

Key dates

Filing date	Apr 10, 2020
Grant date	Sep 12, 2023
Priority date	—
Expiry date	May 30, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A method for detecting at least one roughness in a face of an abradable layer in a fan casing is provided. The method includes a step of depositing on the abradable layer a first coating and a second coating covering the first coating. The first and second coatings have respective thicknesses (N1, N2) and a physical appearance that differ from one another. Local appearance of the first coating is indicative of a need for a localized touch-up, and local disappearance of the first coating and the second coating is indicative of a need for a localized replacement of the abradable layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.