Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David R. Danielson0
Robert H. Perkinson0
Paul A. Carvalho0
Mark Raes0
Date of Patent
August 1, 2017
0Patent Application Number
131092250
Date Filed
May 17, 2011
0Patent Citations Received
Patent Primary Examiner
Patent 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.
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