71972 ⎘
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms fluid, e.g. hydraulic
Sub-classes:PROTECTION FOR A CIRCUIT FOR CONTROLLING THE ORIENTATION OF PROPELLER BLADES OF AN AIRCRAFT ENGINE
#2PITCH CHANGE MECHANISM WITH AN ACTUATOR SURROUNDING A FLUID TRANSFER BEARING
#3MODULE FOR AN AIRCRAFT TURBINE ENGINE
#4PROPULSOR EXTERNAL HYDRAULIC CONTROL SYSTEM
#5HYDRAULIC CONTROL CIRCUIT FOR CONTROLLING FAN BLADE PITCH
#6HYDRAULIC ASSEMBLY FOR AN AIRCRAFT ENGINE
#7REVERSIBLE HYDRAULIC PUMP FOR SETTING PROPELLOR PITCH, AND ASSOCIATED HYDRAULIC SYSTEM, TURBOPROP AND AIRCRAFT
#8MODULE FOR AN AIRCRAFT TURBINE ENGINE
#9AUXILIARY OIL SUPPLY DEVICE FOR AN AIRCRAFT TURBINE ENGINE
#10METHODS AND APPARATUS TO CONTROL PROPELLER PITCH IN DUAL ACTING PROPELLERS
#11VARIABLE PITCH FAN
#12ELECTROHYDRAULIC PITCH SETTING WITH REVERSIBLE PUMP
#13PITCH CHANGE MECHANISM COMPRISING AN IMPROVED ELECTROHYDRAULIC ACTUATOR
#14SYSTEMS AND METHODS FOR CONTROLLING PROPELLER CONTROL UNIT FLUID PRESSURE
#15ROTOR ASSEMBLY
#16Propeller blade pitch change actuation system
#17System and method for detecting and mitigating a propeller failure condition
#18Propeller control unit
#19Method and system for integrated pitch control mechanism actuator hydraulic fluid transfer
#20Dual-concentric control valve with direct drive control and failed motor protection
#21Turbine engine comprising a rotor supporting variable-pitch blades
#22Fan module comprising variable-pitch blades
#23Turbine engine comprising a rotor with variable-pitch blades
#24Control system and method for an electro-hydraulic servo-actuator, in particular of a turbopropeller engine
#25Propeller control unit with bypass drain line
#26Dual actuator hydraulic pitch-lock propeller system
#27Hydraulic actuation system
#28Rotor hubs having pitch control systems and related methods
#29Aircraft turboprop engine propeller pitch control system including a controllable feather valve
#30System and method of locating feathering propeller blade angular position
#31Propeller pitch control system for aircraft turboprop engines
#32Pitch-changing system equipped with means for lubricating a load-transfer bearing
#33Method and system for integrated pitch control mechanism actuator hydraulic fluid transfer
#34Aircraft gas turbine engine blade pitch change mechanism
#35Hydraulic rotary feed-through
#36Pitch control assembly
#37Dual-Concentric Control Valve with Direct Drive Control and Failed Motor Protection
#38Hydraulic line routing plate
#39Oil transfer for a control system regulating the propeller pitch of a turbine engine
#40Propeller control unit
#41Hydraulic actuator
#42Device for controlling a propeller, having variable-pitch blades, of a turboprop engine
#43Hydraulic actuation system
#44Shock absorber assembly for hydraulically and electrically connecting an unducted fan
#45Propeller blade angle control system
#46Propeller pitch control actuation system
#47Pitch change system equipped with means for supplying fluid to a control means and corresponding turbine engine
#48Propeller blade angle control system
#49Hydraulic actuation systems
#50Propeller pitch change actuation system
#51Method and system for integrated pitch control mechanism actuator hydraulic fluid transfer
#52Actuation system for varying blade pitch
#53Assembly for turbine machine with open rotor contra-rotating propellers, comprising a small duct for the passage of ancillaries
#54Oil transfer assembly for supplying oil into a rotating and translating tube
#55System and method for controlling propeller pitch
#56Pitch control assembly and propeller assembly and method of adjusting pitch
#57Hydraulic line routing plate
#58Pitch control assembly
#59Device for supplying hydraulic fluid to a ram and mechanism for controlling the pitch of the blades of a turbine engine propeller comprising the ram
#60Turbomachine provided with an assembly for controlling the pitch variation of a propeller
#61Propulsion unit with a pair of propellers for an aircraft
#62Device for supplying oil under pressure to a linear actuator of a turbine engine
#63ELECTRICALLY DRIVEN AIRCRAFT
#64Fluid pressure regulating system
#65Vent valve
#66System for changing the pitch of the blades of a propeller
#67Hydraulic system for controlling the orientation of fan blades
#68Device for feeding fluid to a hydraulic actuator for controlling the pitch of the fan blades of a two-propeller turboprop
#69Device for supplying and distributing fluid
#70Hydraulic control valve, a device for adjusting blade pitch, and an aircraft provided with such a hydraulic control valve
#71Propeller blade pitch actuation system
#72Elastomeric signal transmission and motion amplification
#73Hydraulic device of a control device, such as a blade pitch-change device
#74System for controlling pitch variation of the blades of a propeller, a propeller, and an aircraft
#75Device for controlling the pitch of turboprop fan blades
#76Hydraulic fluid transfer coupling
#77Propulsion engine
#78Propeller pitchlock un-locking device
#79Pitch change apparatus for counter-rotating propellers
#80Arrangement For Adjusting An Aircraft Propeller
#81Passive cyclic pitch control
#82Remote pitch controller for a variable pitch propeller
#83HYDRAULIC STEPPER MOTOR
#84Hydraulic valve, a hybrid helicopter provided with such a hydraulic valve, and a method implemented by the hydraulic valve
#85Blade pitch actuation mechanism
#86Propeller blade pitch control system
#87Rigid hydraulic control shaft and a control system for varying the pitch of a propeller
#88Translational thrust system for a rotary wing aircraft
#89Propeller pitch change system
#90Propeller actuation system
#91Reversible driving apparatus for PCU pumps
#92Pressurized oil supply for propeller engine system