Turbine overspeed protection
US-2024368999-A1 · Nov 7, 2024 · US
Method of detecting shaft break
US9506401B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9506401-B2 |
| Application number | US-201213984639-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 24, 2012 |
| Priority date | Mar 9, 2011 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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A method of detecting shaft break in a gas turbine engine having a shaft system. The shaft system including a shaft that couples a compressor and a turbine. First construct a frequency model of the shaft system. Then determine a notch frequency and a first torsional frequency for the shaft system from the model. Then in real time measure a rotational speed of the shaft; detect the presence or absence of a feature at least one of the notch frequency and the first torsional frequency in the measured speed; and generate a shaft break signal in response to the absence of at least one of the features.
First claim
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The invention claimed is: 1. A method of detecting shaft break in a gas turbine engine having a shaft system, the shaft system comprising a shaft that couples a compressor and a turbine; the method comprising: constructing a frequency response model of the shaft system; determining a notch frequency and a first torsional frequency for the shaft system from the frequency response model; measuring a rotational speed of the shaft; detecting whether a feature exists at least at on…
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Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Physics · mapped topic
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Frequently asked questions
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- What does patent US9506401B2 cover?
- A method of detecting shaft break in a gas turbine engine having a shaft system. The shaft system including a shaft that couples a compressor and a turbine. First construct a frequency model of the shaft system. Then determine a notch frequency and a first torsional frequency for the shaft system from the model. Then in real time measure a rotational speed of the shaft; detect the presence or a…
- Who is the assignee on this patent?
- Bacic Marko, Garner Stephen Granville, Rolls Royce Plc
- What technology area does this patent fall under?
- Primary CPC classification F02C7/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Nov 29 2016 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).