| Patents for B64C 11 - Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (3,644) |
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| 02/16/2011 | EP2282932A2 Propeller device, vehicle drive unit and energy conversion unit |
| 02/16/2011 | CN201745744U Circular folding type propeller |
| 02/16/2011 | CN101978170A Device for changing a pitch of a blade of an impeller/propeller and a fan comprising the device |
| 02/16/2011 | CN101978150A System of counter-rotating propellers with a feathering device for propeller blades |
| 02/16/2011 | CN101973392A Four-rotor aircraft with telescopic body |
| 02/16/2011 | CN101973391A Lip and spread angle variable efficient duct |
| 02/10/2011 | WO2011017071A2 Method and apparatus for pressure adaptive morphing structure |
| 02/10/2011 | WO2011015475A1 Hub for a propeller having variable pitch blades |
| 02/10/2011 | WO2010128240A3 Deicing device for propfan-type propeller blades |
| 02/10/2011 | CA2769696A1 Hub for a propeller having variable pitch blades |
| 02/09/2011 | EP2281746A2 Titanium sheath and airfoil assembly |
| 02/03/2011 | US20110026361 Stirring blade and sealed stirring apparatus |
| 02/03/2011 | DE102009035689A1 Fluid-dynamic effective rotor e.g. propeller, for use in e.g. ship, has contour regions arranged in relationship e.g. coincidental relationship, of part of rotor blades so that regions blow-out waves of specific wavelength and frequency |
| 02/02/2011 | EP2279943A1 Vertical take-off and vertical landing gyroplane |
| 02/02/2011 | CN201729270U Electric screw pitch changing device for screw propeller-driven unmanned aircraft |
| 02/02/2011 | CN201729269U Efficiency increasing propeller |
| 01/27/2011 | WO2011010059A2 Device for retaining a blade for a turbine engine propeller |
| 01/27/2011 | WO2011009702A1 Mechanical joint |
| 01/27/2011 | CA2768537A1 Device for retaining a blade for a turbine engine propeller |
| 01/26/2011 | CN101954970A Ventilating propeller hub of propeller tip jet helicopter |
| 01/25/2011 | US7874801 Device for measuring the displacement travel of a hydraulic displacement mechanism |
| 01/25/2011 | CA2609917C Rotor hub fairing system for a counter-rotating, coaxial rotor system |
| 01/25/2011 | CA2558869C Improved velocity profile impeller vane |
| 01/20/2011 | WO2011008337A2 Fluid dynamic section having escapelet openings for reducing induced and interference drag, and energizing stagnant flow |
| 01/20/2011 | WO2010136686A3 Device for controlling the orientation of the blades of a turboprop fan |
| 01/20/2011 | WO2010136685A3 Movable actuator device for controlling the orientation of the blades of a turboprop fan |
| 01/20/2011 | WO2008105704A3 A mathematical minimal surface propeller |
| 01/20/2011 | US20110014046 System of counter-rotating propellers with a feathering device for propeller blades |
| 01/20/2011 | DE102009032719A1 Propeller Propeller |
| 01/19/2011 | EP2275721A1 Rotary coupling |
| 01/19/2011 | EP2275344A1 Propeller |
| 01/19/2011 | CN201712785U Cycloidal propeller |
| 01/13/2011 | WO2011003196A1 Blade orientation of an impeller or propeller |
| 01/13/2011 | US20110008175 Rotor blade for a wind turbine and method for its production |
| 01/06/2011 | WO2011000943A1 Propeller hub |
| 01/06/2011 | CA2766661A1 Propeller hub |
| 01/05/2011 | EP2270750A2 Compression of partially-masked image data |
| 01/05/2011 | EP2270312A1 Aero- or hydrodynamic construction |
| 01/04/2011 | US7863768 Pliant mechanisms for extracting power from moving fluid |
| 01/04/2011 | US7862301 Laminated impeller |
| 01/04/2011 | US7861604 Turbine water meter having spinner blades with semi-parabolic edges and mechanical reinforcing elements |
| 12/30/2010 | US20100329880 Hybrid composite for erosion resistant helicopter blades |
| 12/30/2010 | US20100329866 Variable control rotor hub with self-contained energy storage reservoir |
| 12/28/2010 | US7857598 Variable-twist rotor blade controlled by hub pitch angle and rotational speed |
| 12/28/2010 | US7857594 Turbine exhaust strut airfoil profile |
| 12/28/2010 | US7857590 Folding rotor for a rotorcraft |
| 12/28/2010 | US7857587 Turbine blades and turbine blade cooling systems and methods |
| 12/23/2010 | US20100322773 Impeller of a suction-enforced type and fan-motor having the same |
| 12/22/2010 | EP1722106B1 Method for increasing a blade performance (variants) |
| 12/21/2010 | US7854594 Segmented wind turbine blade |
| 12/16/2010 | WO2010144003A1 Main rotor arrangement of an uav-helicopter |
| 12/15/2010 | EP2261115A2 System for driving a propeller pitch change mechanism |
| 12/15/2010 | EP2261114A2 Pitch change actuation system for a counter-rotating propeller |
| 12/15/2010 | EP2260197A1 Contra-rotating propeller system with device for feathering propeller blades |
| 12/15/2010 | EP1485288B1 Actuation system for a controllable pitch propeller |
| 12/15/2010 | CN101918273A System and method for controlling a turbine blade |
| 12/14/2010 | US7850417 Engine arrangement |
| 12/09/2010 | WO2010140933A1 Rotor damper and tail rotor with such a rotor damper |
| 12/09/2010 | US20100310374 Retractable blade structure with a split trailing edge |
| 12/09/2010 | US20100308597 Wind turbine with vertical axis and wind power plant |
| 12/09/2010 | US20100308157 Mechanical device for combining first and second control orders, and an aircraft provided with such a device |
| 12/09/2010 | US20100308155 Helicopter, rotor thereof, and control method thereof |
| 12/08/2010 | EP2257468A2 Single-piece propeller and method of making |
| 12/04/2010 | CA2705655A1 Yaw control method for a hybrid helicopter, and hybrid helicopter equipped with a yaw control device able to implement these methods |
| 12/02/2010 | WO2010137052A1 A safety system for wind turbines and related wind turbine |
| 12/02/2010 | WO2010136686A2 Device for controlling the orientation of the blades of a turboprop fan |
| 12/02/2010 | WO2010136685A2 Movable actuator device for controlling the orientation of the blades of a turboprop fan |
| 12/02/2010 | WO2010136684A1 Stationary actuator device for controlling the orientation of the blades of a turboprop fan |
| 12/02/2010 | US20100303634 Fluid dynamic section having escapelet openings for reducing induced and interference drag, and energizing stagnant flow |
| 12/02/2010 | US20100301607 Upwind wind turbine and operation method thereof |
| 12/02/2010 | CA2763415A1 Stationary actuator device for controlling the orientation of the blades of a turboprop fan |
| 12/02/2010 | CA2762830A1 Movable actuator device for controlling the orientation of the blades of a turboprop fan |
| 12/02/2010 | CA2762229A1 Device for controlling the orientation of the blades of a turboprop fan |
| 12/01/2010 | EP2132089B1 Governor for a rotor with a variable maximum collective pitch and method |
| 12/01/2010 | CN101903240A Rotor blade and method of making same |
| 11/30/2010 | US7842375 Fiber retention system for metal matrix composite preform |
| 11/30/2010 | US7841831 Asymmetrically changing rotating blade shape (ACRBS) propeller and its airplane and wind turbine applications |
| 11/25/2010 | WO2010135597A1 Optimization of premium fiber material usage in wing turbine spars |
| 11/25/2010 | WO2010135593A1 Shell structure of wind turbine blade having regions of low shear modulus |
| 11/25/2010 | WO2010086338A3 Engine, in particular cror drive, for an aircraft |
| 11/25/2010 | US20100296932 Horizontal axis wind turbine |
| 11/25/2010 | DE102008023082B4 Rotorblatt und Rotor The rotor blade and rotor |
| 11/24/2010 | EP2253536A1 Method of flying within an extended speed range with controlled force vector propellers |
| 11/24/2010 | EP1502851B1 Aerodynamic lifting-thrusting propulsion device |
| 11/24/2010 | CN101891016A Invisible autogyro |
| 11/18/2010 | WO2010130893A1 Unducted propeller including variable pitch blades for a turbine engine |
| 11/18/2010 | WO2010108576A3 A mechanical arrangement |
| 11/18/2010 | US20100290918 Hub for a wind turbine |
| 11/18/2010 | US20100290909 Device to adjust the pitch angle of propeller blades for a model engine |
| 11/18/2010 | US20100290908 A blade pitch control mechanism |
| 11/18/2010 | CA2761497A1 Unducted propeller including variable pitch blades for a turbine engine |
| 11/17/2010 | EP2251548A2 Hydraulic stepper motor |
| 11/17/2010 | EP2250082A2 Thrust and carrying force generator |
| 11/17/2010 | CN101886608A Full-blade impeller |
| 11/16/2010 | US7834476 Method for running in a drive train component of a wind energy plant and wind energy plant for executing this method |
| 11/11/2010 | WO2010128241A2 Electric generator disposed on a rotating turboprop part |
| 11/11/2010 | WO2010128240A2 Deicing device for propfan-type propeller blades |
| 11/11/2010 | WO2010128239A2 Electric deicing device for propfan-type propeller blades |
| 11/10/2010 | CN101376433B Helicopter rotor operation method and system |
| 11/10/2010 | CN101337581B Blade equipped with a spar with horizontal coil and method for manufacturing such a spar |