System for detecting an impact on an aircraft engine impeller wheel

US8942886B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8942886-B2
Application numberUS-201313754186-A
CountryUS
Kind codeB2
Filing dateJan 30, 2013
Priority dateJan 30, 2012
Publication dateJan 27, 2015
Grant dateJan 27, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A method and a system for detecting an impact on an impeller wheel of an aircraft engine. A device acquires a revolutions per minute of the engine and a series of deflection signals representative of the deflections on the blades of the impeller wheel at the revolutions per minute. A device constructs signals for detecting impact on the impeller wheel by correlating each of the deflection signals with a predetermined signature of a shock on a blade at the revolutions per minute.

First claim

Opening claim text (preview).

The invention claimed is: 1. A system for detecting an impact on an impeller wheel of an aircraft engine, comprising: acquisition means for acquiring a revolutions per minute of said engine and a series of deflection signals representative of the deflections on the blades of said impeller wheel at said revolutions per minute, a deflection signal being defined by a modification of the position of a blade at the moment when it passes in front of a sensor in relation to its reference…

Assignees

Inventors

Classifications

  • Cross-Sectional Technologies · mapped topic

  • Mechanical Engineering · mapped topic

  • B64D45/00Primary

    Operations & Transport · mapped topic

  • F01D21/003Primary

    Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

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What does patent US8942886B2 cover?
A method and a system for detecting an impact on an impeller wheel of an aircraft engine. A device acquires a revolutions per minute of the engine and a series of deflection signals representative of the deflections on the blades of the impeller wheel at the revolutions per minute. A device constructs signals for detecting impact on the impeller wheel by correlating each of the deflection signa…
Who is the assignee on this patent?
Snecma
What technology area does this patent fall under?
Primary CPC classification B64D45/00. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 27 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).