Counter-rotating open-rotor (CROR)
US9718536B2 · kind B2 · utility
6Cited by
29References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 17, 2011 |
| Grant date | Aug 1, 2017 |
| Priority date | — |
| Expiry date | Jul 31, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method of controlling a Counter-Rotating Open-Rotor (CROR) includes mechanically linking a pitch change system of a first rotor with a pitch change system of a second rotor and commanding a Blade Angle (Beta1 commanded) of the first rotor such that a Blade Angle (Beta2 Actual) of the second rotor is a function of the commanded Blade Angle (Beta1 commanded) to provide a linear relationship between an actual Blade angle (Beta1 Actual) and Beta1 commanded of the first rotor and a non-linear relationship between Beta2 Actual and Beta1 commanded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.