Patent ID: 9028217
Filing Date: 2015-05-12
Classification: F03D,F04D,Y02E

Abstract:
1. A rotor system comprising: a support; first and second rotating members coupled to the support, the first and second rotating members being able to rotate about a common axis; one or more flexible blades having two ends, a first end of each flexible blade being mounted on the first rotating member and a second end of each flexible blade being mounted on the second rotating member so that the first and second ends are rotatable about the common axis; and actuating means arranged to cause the first and second ends of each flexible blade to move closer together by movement of at least one of the first and second rotating members along the common axis; wherein the first and second rotating members are able to rotate relative to each other, said relative rotation allowing each of the one or more flexible blades to coil around a further axis.