Automated propeller feather testing
US11286806B2 · kind B2 · utility
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17References
24Claims
0Family size
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Key dates
| Filing date | Oct 17, 2019 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Feb 28, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
There is described herein methods and systems for testing a propeller feathering function. The method comprises monitoring a rotational speed over time of propeller blades of an aircraft, commanding an angle change of the propeller blades, comparing a post-angle change rotational speed of the propeller blades to an expected rotational speed without the commanded angle change and obtaining, by the processor, a rotational speed difference, and issuing a test passed signal when the rotational speed difference exceeds a threshold and a test failed signal when the rotational speed difference does not exceed the threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.