71960 ⎘
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft Blade pitch-changing mechanisms
Sub-classes:AIRCRAFT WITH AN UNDUCTED FAN PROPULSOR
#2ADJUSTING PITCH FOR AIRFOILS OF AN AIRCRAFT PROPULSION SYSTEM
#3ELECTRIC VERTICAL TAKE-OFF AND LANDING AIRCRAFT
#4PROPULSION UNIT FOR AN AIRCRAFT
#5HYBRID AIRCRAFT POWER PLANT AND METHOD OF OPERATION
#6SYSTEM FOR CONTROLLING THE PITCH SETTING OF A PROPELLER VANE FOR AN AIRCRAFT TURBINE ENGINE
#7AUTOMATED PROPELLER FEATHERING TEST
#8TWIN FAN, REDUNDANTLY CONFIGURED VERTICAL LIFT VEHICLE
#9System and method for controlling a propulsor for a hybrid-electric aircraft propulsion system
#10AIRCRAFT COOLING SYSTEM AND AIRCRAFT
#11PROPELLER FOR A TURBINE ENGINE OF AN AIRCRAFT WITH A VARIABLE-PITCH VANE AND A GEARED COUNTERWEIGHT DEVICE
#12HYBRID PROPULSION SYSTEMS WITH POWER SHARING
#13HYBRID PROPULSION SYSTEMS WITH POWER SHARING
#14ELECTRIC AIR VEHICLE
#15Propelling System with Variable Aerodynamic Controls
#16Linear actuator system
#17Propelling System with Variable Aerodynamic Controls
#18Rotatable Blade Apparatus With Individually Adjustable Blades
#19AIRCRAFT TURBINE ENGINE COMPRISING VARIABLE-PITCH PROPELLER VANES
#20Aircraft turbine engine comprising variable pitch propeller blades
#21Control device of flying object
#22System for controlling propeller and rotor RPM of aerial vehicle having multiple power devices
#23Automatic aircraft powerplant control
#24Automatic aircraft powerplant control
#25Automatic aircraft powerplant control
#26System for controlling the cyclic setting of blades
#27Free Wing Multirotor Transitional S/VTOL Aircraft
#28Aerially distributable communications device
#29APPARATUS AND METHOD FOR FLUID MANIPULATION
#30Operating a turboprop engine for in-flight restart
#31Vertical air vehicle takeoff and landing stabilization apparatuses, systems, and methods
#32Automated propeller feather testing
#33System and method for detecting propeller malfunction
#34Method for piloting a hybrid helicopter having an airframe maintained at constant incidence by regulating a position of at least one mobile tail unit surface
#35APPARATUS AND METHODS FOR AIRCRAFT PROPELLER CONTROL
#36Efficient low-noise aircraft propulsion system
#37ROTATABLE BLADE APPARATUS WITH INDIVIDUALLY ADJUSTABLE BLADES
#38Aircraft propulsion system
#39Rotor assembly and method of assembling same
#40BREACHING FOR SUBMERGIBLE FIXED WING AIRCRAFT
#41Variable pitch bladed disc
#42Method for controlling at least one aerodynamic stabilizer member of a hybrid helicopter, and a hybrid helicopter
#43Noise mitigation system for an unducted propulsive rotor of an aircraft
#44EFFICIENT LOW-NOISE AIRCRAFT PROPULSION SYSTEM
#45Rotorcraft having propeller generated power during autorotations
#46Rotor assembly and method of assembling same
#47Signal amplification in blade angle position feedback system
#48Multi-rotor noise control by automated distribution propulsion
#49SYSTEM AND METHOD FOR STABILIZING AND RESTRAINING AIR DISTURBANCES ON ELECTRICALLY PROPELLED AIRCRAFT
#50Rotor systems and methods
#51Blade angle position feedback system with extended markers
#52Aircraft turboprop engine propeller pitch control system including a controllable feather valve
#53Device for structure testing
#54System and method for operating a gas turbine engine coupled to an aircraft propeller
#55Apparatus and methods for aircraft propeller control
#56Autothrottle control for turboprop engines
#57Method and system for improving transition lift-fan performance
#58NEUTRAL AXIS DUCT WITH TANDEM TELESCOPIC THRUST VECTORING LEADING AND TRAILING EDGE PROPELLERS FOR MULTI-MODE SPATIAL VEHICLE
#59Reverse thrust in multi-engine propeller aircraft
#60Aerial vehicle propellers having variable force-torque ratios
#61Pipe props rotary wing
#62Pusher rotorcraft drivetrain
#63Automated propeller feather testing
#64Pitch control system
#65Propeller blade angle feedback arrangement and method
#66Integrated wireless data system for avionics performance indication
#67Blade fold method and apparatus for a tilt rotor hub
#68Blade comprising a structure made of composite material and method for manufacturing the same
#69Aircraft having split wing and monoplane configurations
#70Efficient low-noise aircraft propulsion system
#71Rotor systems and methods
#72Adaptable rotor control system for a variable number of blades
#73Composite fan blades with integral attachment mechanism
#74Fan
#75Non-intrusive measurement of the pitch of a blade
#76Multirotor aircraft with collective for autorotation
#77Rotatable blade apparatus with individually adjustable blades
#78HYBRID AIRCRAFT
#79Predictive blade adjustment
#80Hybrid aircraft propulsors having electrically-driven augmentor fans
#81Adaptable rotor control system for a variable number of blades
#82Method of controlling gas generator power and torque output
#83Vertical takeoff and landing aircraft having a forward thrust propulsor
#84Aircraft gas turbine engine variable fan blade mechanism
#85AIRCRAFT WITH ELECTRIC AND FUEL ENGINES
#86Convertible propeller
#87ROTOR ASSEMBLIES AND RELATED CONTROL SYSTEMS
#88TRANSFORMABLE UNMANNED AERIAL VEHICLE
#89Autothrottle control for turboprop engines
#90Propulsion system for an aircraft
#91Propeller drives and vehicles
#92Control member, a rotary wing aircraft, and a method
#93AIRCRAFT HAVING A DRAG COMPENSATION DEVICE BASED ON A BOUNDARY LAYER INGESTING FAN
#94VTOL airplane or drone utilizing at least two tilting propellers located in front of wings center of gravity.
#95Fan module with adjustable pitch blades and power system
#96Combined AC and DC turboelectric distributed propulsion system
#97Rotor blade control horn arrangements
#98Electric control member, a rotary wing aircraft, and a method
#99Propeller health monitoring
#100Apparatus and methods for aircraft propeller control
#101System and method for electronic propeller blade angle position feedback with angled pairs of teeth
#102Pitch change module for turbine engine and corresponding turbine engine
#103Integrated wireless data system for avionics performance indication
#104Aircraft engine assembly comprising a pylon leading edge incorporated with an annular row of unfaired after-guide vanes
#105Blade pitch control
#106Propeller for an aircraft turbo engine, including safety means for controlling blade angle of attack
#107QUAD ROTOR TAIL-SITTER AIRCRAFT WITH ROTOR BLOWN WING (RBW) CONFIGURATION
#108Variable pitch bladed disc
#109Aerial vehicle with different propeller blade configurations
#110Aerial vehicle propulsion mechanism with coaxially aligned and independently rotatable propellers
#111Telescoping propeller blades for aerial vehicles
#112Variable pitch bladed disc
#113Aerial vehicle propulsion mechanism with coaxially aligned propellers
#114Propulsion system for an aircraft
#115System and method for coordinating a propeller with an electronic engine control
#116Rotary wing aircraft pitch control system
#117Pitch control system for an aircraft
#118Variable-pitch fan with low pitch of a turbine engine
#119Failure tolerant rotor blade pitch angle controlling device
#120Pitch range for a variable pitch fan
#121Tilt-rotor over-torque protection from asymmetric gust
#122System and method for propeller pitch control
#123Shape memory alloy-actuated propeller blades and shape memory alloy-actuated propeller assemblies
#124Hub assembly and propeller assemblies
#125Aircraft electrical network
#126Automated propeller feather testing
#127Solar powered aircraft with a variable geometry wing and telecommunications networks utilizing such aircraft
#128Rotatable blade apparatus with individually adjustable blades
#129Hydraulic adjusting device
#130SYSTEM AND METHOD FOR IMPROVING TRANSITION LIFT-FAN PERFORMANCE
#131Rotary wing aircraft having a non-ducted tail rotor with at least five blades
#132Device and method for controlling the pitch of blades
#133AIRCRAFT PROPELLERS
#134Relative acceleration blade position measurement
#135EMERGENCY POWER GENERATION VIA LIMITED VARIABLE PITCH FAN BLADE
#136ELECTRICALLY DRIVEN AIRCRAFT
#137Rotorcraft rotor including primary pitch horns and secondary horns
#138Predictive Blade Adjustment
#139Turbo engine with propeller(s) for an aircraft with a system for changing the pitch of the propeller
#140Monitoring and control system
#141System and method for improving transition lift-fan performance
#142Axial displacement and rotational speed monitoring
#143Aircraft propellers
#144Control quadrant
#145Hydraulic fluid transfer coupling
#146Blade pitch actuation mechanism
#147Step-over blade-pitch control system
#148Mounting assembly for a propeller system component
#149Integrated actuator for a propeller system
#150Asymmetrically changing rotating blade shape (ACRBS) propeller and its airplane and wind turbine applications
#151Rotatable blade apparatus with individually adjustable blades
#152Propeller actuation system
#153Rotary wing-fixed wing convertible morphing aircraft
#154Power generation and transfer using variable-pitch propeller
#155Electrically driven blade control for rotorcraft
#156Flapping hinge for a fan blade
#157Ring cam and ring cam assembly for dynamically controlling pitch of cycloidal rotor blades
#158Methods and apparatus to retain a rotor blade
#159Electrically driven blade control for rotorcraft