Entries |
Document | Title | Date |
20080203217 | METHOD FOR MANAGING THE WHEEL STEERING CONTROL OF AN AIRCRAFT - The invention relates to a method for managing a steering control of an aircraft landing gear provided with at least one wheel steerable by the steering control, comprising the following steps:
| 08-28-2008 |
20080217466 | AUXILIARY ON BOARD POWER SYSTEM FOR AN AIRCRAFT - An auxiliary on board power system for an aircraft provides the capability of taxiing the aircraft on the ground without using the main aircraft engine(s). The power system includes a small driver mounted on the aircraft. In one embodiment of the invention, the driver may be mounted at any desirable location on the aircraft and is designed to provide sufficient thrust to taxi the aircraft. Such a suitable system may be provided as original equipment to an aircraft or retrofitted to existing aircraft. In another embodiment of the invention, the driver includes a speed reducer with an output shaft to drive the wheels of one of the landing gear assemblies to provide power to taxi the aircraft. In a further embodiment of the invention, the auxiliary on board power system, in addition to the taxiing function, may be incorporated with an alternator to provide electrical power, an environmental control unit, and an emergency power units as desired. | 09-11-2008 |
20080296429 | Apparatus for controlling aircraft ground movement - An apparatus for controlling the movement of an aircraft having a self-propelled nosewheel, on the ground, is disclosed. The apparatus comprises a control arm; a control unit; means for transmitting information to said self-propelled nosewheel; means for receiving information at said self-propelled nosewheel; and means for controlling at least one of the speed and direction of said nosewheel; whereby airport ground staff can intuitively control the movements of said aircraft by holding said arm and moving it in the direction of required movement of said aircraft. | 12-04-2008 |
20090045283 | System, method and apparatus for ground-based manipulation and control of aerial vehicle during non-flying operations - A device for controlling an aircraft during non-flying operations has a retractable tiller that extends with the nose landing gear of the aircraft. Ground crew use the control device to maneuver the aircraft for various ground-based operations. The tiller provides left and right directional input to the steering of the nose wheel. The tiller also provides throttle and brake controls, such as a twist-grip handle on the tiller. The throttle and brake controls are spring-loaded to an engine idle and braked position. Separate brakes also may be provided for additional braking control. The control device also includes various auxiliary controls for additional operations such as wing fold, tail hook extension and retraction, launch bar extension and retraction, etc. Other functions including engine start, engine shutdown, a vehicle system built in test and other functions and tests also may be provided on the control device. | 02-19-2009 |
20090090810 | Compact Steering Device For The Landing Gear Of An Aircraft - The invention relates to a steering device for the landing gear ( | 04-09-2009 |
20090114765 | Motor for driving aircraft, located adjacent to undercarriage wheel - The invention disclosed is a self-propelled aircraft undercarriage for driving an aircraft on the ground, comprising: an axle; a strut supporting said axle; at least one wheel rotatably mounted on said axle; and drive means for driving said at least one wheel; characterized in that said drive means is disk shaped and is external to said wheel. In one embodiment of the invention, said drive means is mounted on said axle between said strut and said wheel. In a second embodiment, said drive means is mounted on said axle, on the side of said wheel furthest from said strut. | 05-07-2009 |
20090127382 | APPARATUS AND METHOD FOR REDUCED BACKLASH STEERING TILLER - A method is disclosed for steering a mobile platform, where the method may involve: providing a steering component graspable and rotatable by an operator of the mobile platform from a neutral position to first and second positions; coupling an input shaft to the steering component; coupling an input arm to the input shaft so that rotational movement of the input shaft causes rotational movement of the input arm, the input arm being in the neutral position when the steering component is in the neutral position; supporting an idler arm adjacent the input arm and such that portions of the idler arm and the input arm are in contact when the steering component is in the neutral position; and using a biasing system configured to act on the steering arm and the idler arm to maintain the steering component in the neutral position when no force is being applied by the operator to the steering component, to reduce a backlash generated by at least one of the input arm and the idler arm, but to enable clockwise and counterclockwise motion of the input arm in response to an input from the operator using the steering component. | 05-21-2009 |
20090173821 | AIRCRAFT TAXIING SYSTEMS - Thrust systems for passenger aircraft provide at least one flight engine and a taxi engine wherein all flight engines together provide, in total, a takeoff thrust arranged in a takeoff thrust direction and the taxi engine provides a taxi thrust which does not exceed 15% of the takeoff thrust and is directed substantially the same as the takeoff thrust direction. The taxi thrust is thereby sufficient to taxi the aircraft along a taxi path. In a system embodiment, the taxi thrust does not exceed 7.5% of the flight thrust. In another system embodiment, the flight engines have, in total, a flight engine weight and the taxi engine has a taxi engine weight that does not exceed 10% of the flight engine weight. In a system embodiment, the taxi engine weight does not exceed 7.0% of the flight engine weight. In another system embodiment, the taxi engine has a rated thrust and is configured so that the taxi thrust is within 40% and 100% of the rated thrust. In another system embodiment, the taxi engine includes a rotatable engine portion to divert the taxi thrust over an azimuth angle to assist taxiing along the taxi path. The taxi engine significantly reduces fuel costs because when flight engines are used for taxiing, they operate in a very inefficient region of their rated thrust and consume excessive fuel. The taxi engine also significantly reduces the brake repair and adjustment that is incurred when the flight engines are used for taxiing and the brakes are frequently engaged to counter their high thrust. | 07-09-2009 |
20090218440 | INTEGRATED MULTIFUNCTIONAL POWERED WHEEL SYSTEM FOR AIRCRAFT - The invention relates to a powered wheel system for an aircraft, comprising at least one undercarriage with several rotatably held wheels, with the powered wheel system comprising two or more motors of which in each case at least one motor is coupled to at least one of the wheels, and comprising at least one control device that is coupled to the motors. A control device is equipped to control operation of the motors independently of each other as far as their respective rotary speeds and direction of rotation are concerned, so that the system is able, among other things, to effect taxiing; by means of rotary speed differentials on different motors to be able to steer the aircraft; prior to landing to bring the wheel circumference speeds to landing speed; and to boost the undercarriage brakes of the aircraft. Furthermore, by means of an improvement of the system according to the invention, the rotary speeds of the wheels may be determined with precision. The invention furthermore relates to a method for driving wheels of an aircraft. | 09-03-2009 |
20090242692 | Clutch Arrangement - A clutch arrangement comprises a rotatable drive input, a rotatable output, and an epicyclic gear arrangement comprising a ring gear, a series of planet gears meshing with the ring gear, a sun gear meshing with the planet gears, and a carrier upon which the planet gears are mounted, the drive input being connected to one of the ring gear and the carrier, the output being connected to the other of the ring gear and the carrier, and a clutch device operable to control relative rotation between the ring gear and the sun gear. The invention also relates to a nosewheel landing gear steering arrangement including such a clutch arrangement. | 10-01-2009 |
20090261197 | Nosewheel control apparatus - An apparatus for driving a taxiing aircraft is disclosed, comprising, in an aircraft, two self-propelled nosewheels, each having an electric motor; equipment for flight; dual-function controlling means for controlling said equipment for flight and said nosewheels, said dual-function controlling means being disposed in the cockpit of said aircraft; sensing means; and switching means,—wherein said switching means are operable to switch the function of said dual-function controlling means between controlling said equipment for flight and controlling said nosewheels. Said dual function controlling means may control speed and/or steering of the aircraft. Second controlling means may be provided, and may be disposed externally to the aircraft. | 10-22-2009 |
20090294577 | DEVICE FOR AUTONOMOUS MOVEMENT OF AN AIRCRAFT ON THE GROUND - In order to allow an aircraft to move around autonomously on the ground, a system turns at least one wheel of the aircraft. The wheel is coupled to rotational drive means ( | 12-03-2009 |
20090294578 | AIRCRAFT LANDING GEAR STEERING SYSTEM - An aircraft landing gear steering system comprising a turning member that is operably coupled to a landing gear leg through a harmonic drive mechanism. The landing gear steering system may be electrically driven. Additionally, the landing gear system has various advantages, including the provision of a safe failure mode should the harmonic drive mechanism fail. | 12-03-2009 |
20100044500 | PEDAL OPERATED APPARATUS FOR CONTROLLING AN AIRCRAFT NOSE WHEEL STEERING SYSTEM - A pedal operated apparatus controls an aircraft rudder during flight using a mechanical linkage and controls a nose wheel power steering system while the aircraft is on the ground. The apparatus includes a pair of foot pedals operatively connected to the rudder and also connected to the power steering system. Springs are operatively connected to the pedals only when the aircraft is on the ground to center the nose wheel after a turn. The springs are operatively disconnected when the aircraft is in flight. | 02-25-2010 |
20100065678 | SELF-PROPELLED WHEEL APPARATUS OF AIRCRAFT - In a self-propelled wheel apparatus of an aircraft, a drive mechanism composed of a wave gear drive and a motor is coaxially linked to an axle of a wheel via a one-way clutch, and rotational force in the reverse direction of the aircraft is transmitted to the wheel axle via the one-way clutch. When the aircraft moves forward, the link between the wheel axle and an output shaft of the wave gear drive is cut off by the one-way clutch, and motor rotational force is transmitted to the wheel axle, causing the wheel to rotate, only when the aircraft moves backward. | 03-18-2010 |
20100078517 | LANDING GEAR WITH LOCKING STEERING SYSTEM - A landing gear system for an aircraft comprises a truck beam ( | 04-01-2010 |
20100096494 | SYSTEM AND METHOD FOR TRANSFERRING AIRPLANES - Disclosed a method of transferring airplanes and an unmanned airplane transfer system. The transfer system comprises a transfer module adapted to transfer an airplane by moving a landing gear of the airplane; and a controller being assembled with the transfer system, coupled to the transfer module, and adapted to i) receive a transfer signal; ii) to control the transfer module in response to the transfer signal; and iii) to coordinate transferring the airplane by the unmanned airplane transfer system and at least one second unmanned airplane transfer system. The method of transferring an airplane by a plurality of unmanned airplane transfer systems comprises receiving by at least one unmanned airplane transfer system among said plurality of transfer systems a transfer signal, and in response to the transfer signal, coordinating the transfer of the airplane by at least two unmanned airplane transfer systems among said plurality of transfer systems. | 04-22-2010 |
20100140392 | TOWBARLESS AIRPLANE TUG - Disclosed a towbarless airplane tug and method of operating thereof. The tug comprises a chassis mounted on a plurality of tug wheels, at least some of said tug wheels being steerable tug wheels and at least some of said tug wheels being drivable tug wheels; an airplane wheel support turret assembly, rotatably mounted in connection with said chassis and operative to support at least one wheel of a nose landing gear of an airplane; at least one rotation sensor connected to said wheel support turret assembly and operative to sense rotation of said wheel support turret assembly relative to said chassis, said rotation resulting at least from steering control induced movement of the nose landing gear caused by pilot-controlled ground steering of said airplane, and to generate an output indicating a direction of said pilot-controlled ground steering of said airplane; at least one tug wheel driver unit operative to drive said drivable tug wheels; at least one tug wheel steering mechanism operative to steer said steerable tug wheels thereby providing steering of said chassis; and at least one tug controller operative to control operation of at least said tug wheel steering mechanism at least in response to said output of said rotation sensor, so as to cause steering said steerable tug wheels such that said chassis moves in the direction indicated in said output of said rotation sensor. | 06-10-2010 |
20100147995 | AIRCRAFT UNDERCARRIAGE WITH MOTORIZATION AND TRANSMISSION - The aircraft includes an undercarriage having an upper portion, at least one wheel for running on the ground, and a shock absorber connecting the wheel to the upper portion. The aircraft also includes a motor for driving the wheel, the motor being rigidly fastened to the upper portion. | 06-17-2010 |
20100252675 | APPARATUS FOR TAXIING AN AIRCRAFT - Apparatus indicated generally at | 10-07-2010 |
20100276535 | METHOD OF TAXIING AN AIRCRAFT - The invention provides a method of taxiing an aircraft having at least one nose undercarriage at the front of the aircraft and main undercarriages, each undercarriage having wheels, the method comprising the steps of:
| 11-04-2010 |
20100288873 | SELF-PROPELLED UNDERCARRIAGE WHEEL HAVING A LOW PROFILE TIRE - An undercarriage wheel is disclosed comprising an axle member that supports a drive member, for example but not limited to a compact high torque electric motor, a wheel member driven by said drive member, and a tire attached to the wheel member, wherein the tire bulges in the width dimension of the wheel, wherein the drive member protrudes from the wheel member and thus occupies at least some of the additional width made available by the bulge of the tire. A further aspect of the invention is an undercarriage wheel that comprises an axle member that supports a drive member, for example but not limited to a compact high torque electric motor, a wheel member driven by said drive member, and a low-profile tire attached to the wheel member. Since the profile of the tire is low, additional space is available inside the wheel for the drive member. Preferably, the drive member occupies at least some of this additional space, and has sufficient power to be able to propel an aircraft to which the undercarriage assembly is attached, either alone or in combination with other self-propelled undercarriage assemblies attached to the aircraft. | 11-18-2010 |
20100327109 | METHOD AND SYSTEM FOR TAXIING AN AIRCRAFT - The system is used for taxiing an aircraft and comprises at least one multi-spool gas turbine engine, the engine having an electrical motor in a torque-driving engagement with a low pressure spool of the engine. The low pressure spool has a propulsor connected thereon to generate thrust when rotated. A controller is connected to the electrical motor and an electrical power source to control an amount of electrical power provided from the power source to the electrical motor so as to drive the propulsor and cause at least a major portion of the thrust to be generated by the propulsor for moving the aircraft during taxiing. | 12-30-2010 |
20110073706 | AIRCRAFT TUG - An aircraft tug includes a tow bar which extends from a chassis, the tow bar operable to autonomously attach with an aircraft main landing gear assembly. | 03-31-2011 |
20110089289 | AIRCRAFT LANDING GEAR ARRANGEMENT AND A NOSE LANDING GEAR ASSEMBLY - An aircraft landing gear arrangement comprises a nose landing gear assembly and at least one main landing gear assembly. The nose landing gear assembly has a nose landing gear wheel with a high energy brake apparatus therein. The main landing gear assembly has a main landing gear wheel with a high energy brake apparatus therein and a main landing gear wheel with a motor therein. The motor is used for driving the main landing wheel during taxiing of the aircraft. | 04-21-2011 |
20110127366 | AUTOMATED SYSTEM FOR MANEUVERING AIRCRAFTS ON THE GROUND - The invention relates to an automatic system for maneuvering aircraft on the ground, based on driverless towing vehicles, (hereafter AGTV's), which can independently hold the undercarriage of the aircraft. In said system the AGTVs pull the aircraft from transfer areas on the taxiways of the runways to the stand and vice versa, allowing the propulsion systems of the aircraft to remain switched off during the taxiing process. The driverless AGTVs receive their driving jobs from a computer-aided guidance and management system which controls the AGTV fleet in a collision- and conflict-free manner. | 06-02-2011 |
20110147514 | APPARATUS AND METHOD FOR STEERING ANGLE MEASUREMENT OF AN AIRCRAFT LANDING GEAR AND AIRCRAFT LANDING GEAR - The present disclosure relates to a method and an apparatus for the contactless measurement of the steering angle of an aircraft landing gear, in particular of a nose landing gear. Furthermore, this present disclosure relates to an aircraft landing gear, in particular a nose landing gear, which allows a contactless measurement of the steering angle. | 06-23-2011 |
20110155846 | ANCILLARY DEVICE WITH AN AIR TURBINE FOR TAXIING AN AIRCRAFT ON THE GROUND - Device for driving at least one wheel of an aircraft landing gear, which includes at least one turbine machine incorporated into the landing gear of the aircraft. Advantageously, the turbine machine is a pneumatic turbine. | 06-30-2011 |
20110180658 | AIRCRAFT STEERING ACTUATOR - An aircraft steering actuator has a driving shaft for connection to a drive source, the driving shaft defining a first axis, and a driven shaft for substantially perpendicular connection to a landing gear axle of an aircraft, the driven shaft defining a driven axis substantially perpendicular to the first axis, in which the driving shaft and driven shaft are connected in driving engagement by a ball-worm gear. | 07-28-2011 |
20110180659 | AIRCRAFT TAXIING ACTUATOR - An aircraft wheel assembly comprising a wheel and an aircraft taxiing actuator comprising, a first shaft for connection to a drive source, the first shaft defining a first axis and a second shaft for connection to the wheel to rotate the wheel, the second shaft defining a second axis substantially perpendicular to the first axis, in which the first shaft and second shaft are connected in driving engagement by a ball-worm gear. | 07-28-2011 |
20110198439 | WHEEL DRIVE SYSTEM FOR AN AIRCRAFT COMPRISING A FUEL CELL AS AN ENERGY SOURCE - The invention pertains to a wheel drive system for an aircraft that features at least one electric motor and at least one fuel cell as energy source for the electric motor, wherein the electric motor is coupleable to at least one wheel of at least one landing gear of the aircraft. The inventive wheel drive system reduces the fuel consumption and lowers the emission of CO | 08-18-2011 |
20110215192 | LANDING GEAR STEERING SYSTEMS - A steering system for aircraft landing gear can be used, for example, for controlling one or more axles of a bogie style landing gear system, such as, but not limited to, a six-wheel bogie style landing gear system. The steering system includes a rack having a plurality of rack teeth. An actuator is operatively connected to move the rack in a linear direction. A pinion has a plurality of pinion teeth in meshing engagement with the rack teeth. The pinion includes a pinion body extending between the pinion teeth and a pinion pivot that is spaced apart from the pinion teeth. The actuator, rack, and pinion are configured and adapted so that linear motion of the rack imparted by the actuator results in rotation of the pinion about the pinion pivot for steering landing gear wheels. | 09-08-2011 |
20110248115 | Self-Tracking System For The Rear Axles of Trucks - A suspension system for use with a trailer or truck having a frame and front and rear axles. In one embodiment, the suspension system includes a front hanger having a lower portion, a bearing portion, and an upper portion engaged with the frame. The suspension system further includes a hanger assembly having a lower portion, a bearing portion, and an upper portion engaged with the frame and a rocker arm having first and second bearing portions. The suspension system further comprises a rear hanger engaged with the frame and having a bearing portion. The suspension system further comprises a first saddle engaged with the front axle and a second saddle engaged with the rear axle. The suspension system further comprises a leaf spring having a first end portion engaged with the bearing portion of the front hangar and a second end portion engaged with the first bearing portion of the rocker arm. The suspension system further comprises a torque bar having a first end portion engaged with the front hangar and a second end portion engaged with the first saddle of the front axle. The suspension system further comprises a leaf spring assembly comprising an upper leaf spring having a first end portion engaged with the second bearing portion of the rocker arm and a second end portion engaged with the bearing portion of the rear hangar. The first and second end portions of the upper leaf spring have a width that is substantially less than the width of the second bearing portion of the rocker arm and the bearing portion of the rear hanger. The suspension system further comprises a torque bar assembly having a first end portion engaged with the hangar and rocker assembly and a second end portion engaged with the second saddle of the rear axle. | 10-13-2011 |
20110259995 | METHOD FOR MOVING AN AIRCRAFT ALONG THE GROUND - A method according to which an aircraft is moved along the ground by means of at least two separate appliances connected to the aircraft independently from each other or other appliances. A control element is provided for moving an aircraft, said element sending instructions to at least two separate appliances in order to move the aircraft along the ground by means of the appliances. The invention also relates to an appliance for implementing the method, which can communicate with an identical appliance in order to transmit and/or receive at least one datum relating to a position and/or a movement of one of the appliances. | 10-27-2011 |
20110266388 | METHOD OF MANAGING A GROUND CONNECTION OF AN AIRCRAFT - A method of managing a ground connection of an aircraft having landing gear with wheels that are subjected to static loads, some of which wheels are fitted with respective braking devices and others are fitted with respective independent drive devices, the method including the step of causing a modification to a distribution of the static loading to which the wheels of the landing gear are subjected in such a manner as to:
| 11-03-2011 |
20110284685 | Wheel Structure for Integrating an Electric Drive Motor - A wheel design is provided for an aircraft landing gear wheel that is configured to maximize the space available within a landing gear wheel well to support a motor driver assembly that drives the aircraft wheel when the aircraft is on the ground. The wheel includes inboard and outboard support walls that are spaced apart a selected distance along the wheel axle so that the motor driver assembly components are substantially completely contained within the wheel space defined by the support walls. The preferred motor driver assembly includes an electric motor and a gear and clutch assembly operatively connected to the wheel to drive the wheel and move the aircraft on the ground. The wheel and motor driver assembly described herein may be retrofitted in an existing aircraft wheel without changing existing landing gear components, including tires, piston, and axle. | 11-24-2011 |
20110290933 | AIRCRAFT INCLUDING AN UNDERCARRIAGE MOTOR - The aircraft includes at least one engine suitable for propelling the aircraft in flight, at least one motor of an undercarriage, and automatic means arranged to cause the aircraft to taxi under drive directly from the engine, while simultaneously using the motor for taxiing, other than during takeoff or landing. | 12-01-2011 |
20110303785 | AIRCRAFT FITTED WITH AN INDEPENDENT DRIVE DEVICE - The invention relates to an aircraft having wheels fitted with hydraulically-actuating friction brake means and also hydraulically-actuated independent drive means for driving the wheels in rotation and enabling the aircraft to move in stages of independent drive in which the engines of the aircraft are inactive, wherein the aircraft is fitted simultaneously with a main hydraulic circuit including a pressure source that powers the brake means when said pressure source is active; with an alternative braking circuit for enabling brake means to be actuated at least when the engines of the aircraft are stopped, the alternative braking circuit including an accumulator that is normally used for parking braking and that is kept under pressure by the pressure source of the main circuit when said pressure source is active; and with an auxiliary hydraulic circuit pressurized by auxiliary pump means activated by an auxiliary power unit of the aircraft to enable the independent drive means to be actuated; the auxiliary hydraulic circuit being connected to the alternative braking circuit to maintain an operating pressure in the accumulator of the alternative braking circuit. | 12-15-2011 |
20120001018 | Electric Motor Integrated with a Wheel - An integral motor and wheel assembly for aircraft landing gear is provided that includes an electric motor packaged within at least one gear wheel and configured to fit completely within the space provided in an existing aircraft for the landing gear components. The motor is positioned within the wheel to minimize the spin-up weight and to maximize the space within a given volume allocated for the motor. Installation of this motor and gear wheel assembly in an existing aircraft landing gear is designed to permit the continued use of existing landing gear components, including tires, axles, and pistons, so that the assembly can be easily retrofitted into existing aircraft. | 01-05-2012 |
20120006935 | AIRCRAFT TAXIING AND SECONDARY PROPULSION SYSTEM - An on board secondary propulsion system for an aircraft provides the capability of taxiing the aircraft on the ground without using the main aircraft engine(s). The power system includes a small taxi engine mounted on or in the aircraft at a location suitable to provide a thrust sufficient only to taxi the aircraft. Such a suitable system may be provided as original equipment to an aircraft or retrofitted to existing aircraft. The on board secondary propulsion system, in addition to the taxiing function, can provide electrical power, an environmental control unit, power for the aircraft hydraulic system and an emergency power unit as desired. The system can also be used to supplement the main aircraft engines as necessary during takeoff and climb to further reduce fuel consumption, noise, engine emissions, maintenance costs and extend the life of the main aircraft engines, reduce the required takeoff distance of an aircraft when used in conjunction with the main engines and provide emergency glide support. | 01-12-2012 |
20120018573 | COMPACT SHIMMY DAMPER FOR AIRCRAFT LANDING GEAR - A shimmy damper for aircraft landing gear is provided. The shimmy damper comprises a housing, a rotor with a vane provided within the housing, and first and second fluid chambers, connected by a control orifice and separated from one another by the vane. | 01-26-2012 |
20120018574 | MOTOR CONTROLLER - This application describes the software invented to control an electric motor system. The electric motor system is mounted on one or more aircraft main wheels or nose wheels to drive an aircraft independently on the ground without aircraft engines or tow vehicles. The software uses closed-loop control together with several other control laws to operate the drive motor or motors. Knowledge of the current operating state of the drive motor, together with knowledge of the commands given to taxi forward, taxi in reverse, or brake in reverse, is used to configure the motors to optimal operating parameters. The software architecture is described along with the pilot interface and many details of software implementation. | 01-26-2012 |
20120091264 | SELECTIVE FORCE TRANSMISSION DEVICE AND AN UNDERCARRIAGE CONSISTING OF AN APPLICATION THEREOF - The invention relates to a device for selectively transmitting force, the device comprising a first element and a second element that is movably mounted on the first element, a friction member being arranged between the first element and the second element to exert a friction force between them, which force presents a maximum value that depends on prestress imparted by a presser member. The device includes control means for varying the prestress imparted by the presser member to the friction member and arranged, where appropriate, to substantially release the prestress imparted by the presser member so that the prestress becomes substantially zero. | 04-19-2012 |
20120104158 | COMPACT ELECTRIC TAXI ASSEMBLY FOR INSTALLATION ON AN AIRCRAFT - A electric taxi system (ETS) for an aircraft may comprise drive units mounted coaxially with wheels of the aircraft and dedicated motor control units for the drive units. The motor control units may be operable independently of one another so that a first one of the drive units can be operated at a speed different from an operating speed of a second one of the drive units. Independent operability of the drive units may provide enhanced maneuverability of the aircraft during taxiing. | 05-03-2012 |
20120104159 | COMPACT ELECTRIC TAXI ASSEMBLY FOR INSTALLATION ON AN AIRCRAFT - A electric taxi system (ETS) for an aircraft may comprise drive units mounted coaxially with wheels of the aircraft and dedicated motor control units for the drive units. The motor control units may be operable independently of one another so that a first one of the drive units can be operated at a speed different from an operating speed of a second one of the drive units. Independent operability of the drive units may provide enhanced maneuverability of the aircraft during taxiing. | 05-03-2012 |
20120104160 | AERODYNE INCLUDING MOTORIZED UNDERCARRIAGES - The aerodyne, e.g. an airplane, includes: an auxiliary power unit suitable for producing electricity; a first electricity distributor connected to the unit; at least one flight propulsion engine including an electricity generator; at least one undercarriage motor, the motor enabling the aerodyne to taxi; and a second electricity distributor connected to the generator and to the undercarriage motor in order to transmit electricity from the generator to the motor independently of the first distributor. | 05-03-2012 |
20120119018 | SYSTEM AND METHOD FOR TRANSFERRING AIRPLANES - An unmanned airplane transfer system, comprising: a transfer module adapted to transfer an airplane; a landing gear holder, adapted to firmly grip a landing gear of the airplane; wherein the landing gear holder is pivotally coupled to a structural element of the unmanned transfer system; and a controller, coupled to the transfer module, adapted to control the transfer module in response to a steering induced movement of the landing gear holder. | 05-17-2012 |
20120126053 | AIRCRAFT ELECTRIC TAXI SYSTEM WITH FRICTION ACTUATED, BI-DIRECTIONAL CLUTCH - An electric taxi system (ETS) for an aircraft may comprise drive motors mounted coaxially with wheels of the aircraft. A clutch assembly may be interposed between the drive motor the wheel. The clutch assembly may transmit torque from the motor to the wheel when the wheel and a rotor of the motor rotate at the same rotational speed. The clutch assembly may selfdisengage a rotor of the motor from the wheel when the wheel rotates faster than the rotor. | 05-24-2012 |
20120138734 | HYDRAULIC GROUND PROPULSION SYSTEM - A hydraulic ground propulsion system for an aircraft. The system comprises a wheel, axel, an aircraft power interface device, an electric motor, a hydraulic system, a drive assembly and a controller. The wheel is rotatably coupled to the wheel axel. The aircraft power interface device interfaces an aircraft power source. The electric motor is coupled to the aircraft power interface device and receives power from the aircraft power source through the aircraft power interface device. The hydraulic system is driven by the electric motor. The drive assembly mechanically couples the wheel axel to the hydraulic system. The drive assembly is mechanically driven by the hydraulic system. The drive assembly transfers energy from the hydraulic system to the wheel axel. The controller controls the electric motor and the hydraulic system based upon a pilot torque command. | 06-07-2012 |
20120138735 | DEVICE FOR BRAKING/DRIVING AN AIRCRAFT WHEEL - The invention relates to a device for braking/driving an aircraft wheel mounted tO rotate on an undercarriage axle, the device comprising: a stack of disks comprising disks that are constrained in rotation with the wheel and that alternate with disks that are constrained in rotation with a torsion tube; a support member mounted to rotate on the axle and constrained in rotation with the torsion tube; braking actuators carried by the support member for selectively pressing the disks together; and a drive member for selectively driving the support member in rotation; the support member carrying a secondary of a transformer having a primary arranged facing the support member while being stationary in rotation, the secondary being electrically connected to the actuators and the primary being adapted to being connected to a non-DC voltage source. | 06-07-2012 |
20120145823 | STEERING METHOD FOR TAXIING AIRCRAFT - Methods, non-transitory computer readable media, and aircraft for aircraft taxiing are provided. A particular method determines a location of an aircraft relative to a taxiway having a curved section. The method determines a first nose gear steering angle to steer the aircraft through at least a first portion of the curved section. The first nose gear steering angle is selected to cause nose gear of the aircraft to depart a taxiway centerline. The first nose gear steering angle is selected to keep a steering point of the aircraft substantially over the taxiway centerline as the aircraft traverses at least the first portion of the curved section. The steering point is located between the nose gear and main gear of the aircraft. | 06-14-2012 |
20120153075 | AIRCRAFT LANDING GEAR - An aircraft landing gear comprising: a shock-absorbing main leg having a sprung part for attachment to an aircraft and an un-sprung part including a slider and an axle carrying at least one wheel, the wheel having a toothed ring gear; a drive transmission mounted externally on the sprung part, or on the un-sprung part, of the main leg, the drive transmission having at least one motor and a drive pinion for meshing with the toothed ring of the wheel; and an actuator for lifting the drive transmission into and out of driving engagement with the toothed ring and for maintaining the driving engagement as the landing gear deflects during a ground taxiing operation. Also, a method of operating the aircraft landing gear. | 06-21-2012 |
20120160956 | DEVICE AND METHOD FOR A ROTATION OF THE WHEELS OF THE LANDING GEAR OF AIRCRAFT - The invention concerns a device and a method to cause the rotation of at least one wheel of the landing gear of aircraft, according to which between the supporting structure ( | 06-28-2012 |
20120168557 | Integrated Aircraft Ground Navigation Control System - An aircraft ground control system that moves an aircraft on the ground between landing and take off without external mechanical assistance from airport tugs or tow vehicles or reliance on thrust produced by the aircraft's engines is provided. The aircraft ground control system interfaces only with an aircraft auxiliary power unit or other aircraft power supply, but otherwise operates independently of aircraft systems. A system integrator and controller links cockpit controls designed to actuate the transmission of power to system components and to activate system components only under predetermined conditions with selectively activatable drivers in driving connection with one or more aircraft wheels to move the aircraft on the ground at selected torques and speeds. | 07-05-2012 |
20120187239 | Steering collar locking mechanism for retractable aircraft nose landing gear - A retractable nose landing gear assembly for an aircraft is disclosed, which includes an elongated strut cylinder defining a longitudinal axis, an elongated strut piston mounted for reciprocal movement relative to the strut cylinder between a shrunk condition when the landing gear is retracted into a wheel well of an aircraft and a fully extended condition when the landing gear is deployed from the wheel well for landing the aircraft, and wherein the strut piston is mounted for rotation about the axis of the strut cylinder for steering the aircraft while taxiing on the ground, and a locking mechanism operatively associated with the strut cylinder for preventing rotation of the strut piston about the axis of the strut cylinder when the landing gear is in a shrunk condition retracted within the wheel well of the aircraft during flight. | 07-26-2012 |
20120217339 | System and Method for Failsafe Operation of Aircraft Ground Movement System - A failsafe system and method for ensuring the safe operation of an aircraft with a ground movement system to drive the aircraft independently on the ground is provided. The system includes at least one aircraft nose or main drive wheel powered by an onboard wheel driver responsive to sensed aircraft and ground movement system operating parameters to continue operation in response to parameters within normal limits or to prevent continued operation if sensed parameters are outside normal limits and indicate continued operation to be unsafe. The onboard wheel driver includes a locking assembly responsive automatically or manually to signals indicating sensed parameters to lock the onboard wheel driver in an activated or an inactivated condition, depending on whether operation of the ground movement system can be continued safely. | 08-30-2012 |
20120217340 | SYSTEM FOR MOTORIZING A WHEEL CONNECTED TO A SUSPENSION - The invention relates to a motorizing system for powering a wheel ( | 08-30-2012 |
20120318909 | LANDING GEAR - Aircraft landing gear including an axle pivotally connected to a bogie beam and a locking device. The locking couples the axle to the bogie beam, and has a movable member and a follower. The movable member is movable between first and second configurations. Movement of the movable member towards the second configuration causes corresponding movement of the follower so as to transfer a steering force to the axle through the follower which causes the axle to rotate in a first direction. With the movable member in the first configuration, the follower is in a first configuration that inhibits the movable member being moved by an external force applied to the axle. With the movable member in the second configuration, the follower in a second configuration that permits the movable member to be moved by an external force applied to the axle. | 12-20-2012 |
20130001355 | METHOD OF REDUCING FUEL CARRIED BY AN AIRCRAFT IN FLIGHT - A method for reducing the amount of fuel required to be carried in flight by an aircraft is provided that substantially reduces the taxi margin amount of fuel required by an aircraft, thereby reducing the aircraft's weight and producing significant increases in fuel use efficiency and savings in fuel costs. The substantially reduced taxi margin amount of fuel is produced by equipping an aircraft with at least one drive wheel powered by at least one onboard drive means that cooperatively drive the aircraft on the ground during taxi between takeoff and landing without reliance on the operation of the aircraft main engines. | 01-03-2013 |
20130015290 | METHOD OF MANAGING THE STEERING OF AIRCRAFT WHEELS, IN PARTICULAR IN THE EVENT OF A TIRE BURSTING OR DEFLATINGAANM BENMOUSSA; MichaelAACI AntonyAACO FRAAGP BENMOUSSA; Michael Antony FRAANM FRAVAL; JeromeAACI Velizy VillacoublayAACO FRAAGP FRAVAL; Jerome Velizy Villacoublay FR - The invention relates to a method of managing the steering of aircraft undercarriage wheels carried by a steerable bottom portion of the undercarriage, the bottom portion being associated with steering control including a steering member suitable for steering the bottom portion of the undercarriage in response to a steering order. According to the invention, the method comprises the steps of:
| 01-17-2013 |
20130020430 | Method of Extending and Improving Aircraft Life and Efficiency - A method for extending the useful and economic life of an aircraft and improving aircraft efficiency is provided. This method produces significant fuel savings on the ground and in flight as well as cost-effective and efficient operation of and reduced maintenance requirements for older aircraft. The increased economic viability of the continued use of older aircraft is achieved by equipping an aircraft with at least one onboard drive wheel assembly controllably powered to drive the aircraft during ground travel independently of aircraft engines or external tow vehicles. The substantial elimination of damage to an aircraft's airframe, brakes, landing gear, and engine components resulting from tow vehicle attachment, brake application during ground travel with operating aircraft engines, or by FOD produces cleaner, more efficient engine operation during flight. Significant and substantial potential cost savings realized by the present method makes the continued use of older aircraft a viable option. | 01-24-2013 |
20130020431 | STEERABLE AXLE - There is described a landing gear having a bogie including a elongated beam ( | 01-24-2013 |
20130026284 | AIRCRAFT TAXI SYSTEM INCLUDING DRIVE CHAIN - An aircraft taxi drive system includes a motor that is configured to transfer power to an aircraft wheel via a drive chain, such that the motor rotates the aircraft wheel via the drive chain. In some examples, the drive chain is movable between first and second positions. In the first position, the drive chain, such as an exterior surface of the drive chain, is engaged with a driven sprocket that is mechanically connected to an aircraft wheel. In the second position, the drive chain is disengaged from the driven sprocket. | 01-31-2013 |
20130056580 | SPLIT CIRCUMFERENCE AIRCRAFT WHEEL ASSEMBLY WITH INTEGRATED DRIVE MOTOR ASSEMBLY - A split circumference wheel assembly is provided for an aircraft landing gear wheel configured to maximize the space available within a landing gear wheel well to support a motor driver assembly with drive means that drives the aircraft wheel on the ground. The split circumference wheel assembly includes separable inboard and outboard support walls that are spaced axially apart a maximized distance so that the motor driver assembly is completely contained within the maximized space defined. A preferred wheel assembly employs a demountable flange and a locking ring to integrally and removably support the motor driver assembly within the maximized wheel volume to drive one or more aircraft wheels and move the aircraft independently on the ground. The wheel and motor driver assembly described herein are designed to be retrofitted in an existing aircraft wheel. | 03-07-2013 |
20130062459 | METHOD FOR ENHANCING PILOT EFFICIENCY AND AIRCRAFT SAFETY DURING GROUND TRAVEL - A method for enhancing pilot and cockpit crew efficiency and increasing aircraft safety during aircraft ground travel between landing and takeoff is provided. The present method is most effective in enhancing pilot efficiency and aircraft safety in an aircraft equipped with at least one powered, self-propelled drive wheel that drives the aircraft on the ground independently of the aircraft main engines or external tow vehicles that is controlled by the pilot and cockpit crew to maneuver the aircraft during ground travel. | 03-14-2013 |
20130087654 | APPARATUS FOR RECOVERING KINETIC ENERGY RELEASED DURING LANDING OF AN AIRCRAFT AFTER CONTACT WITH THE GROUND, AND METHOD - At least one energy storage system is provided for receiving and releasing at least a part of the converted kinetic energy from a landing aircraft. The system has a high degree of multiple utilisation and enables, for example, manoeuvring of a landed aircraft on the taxiway independently of the engines, where the aircraft is substantially moved with the braking energy recovered during the landing process. As a result of the main engines no longer being required for manoeuvring, there is a considerable potential for saving energy and the use of motor-operated tow vehicles is eliminated. The apparatus also contributes in the sense of a “green” and economical technology to saving aircraft fuel and better fulfils future requirements of airports, particularly with a view to noise and pollutant reduction. In addition, the invention has as its subject matter a method for recovering braking energy of an aircraft. | 04-11-2013 |
20130112805 | METHOD FOR REDUCING REQUIREMENTS FOR AIRCRAFT BRAKE SIZE, COMPLEXITY, AND HEAT DISSIPATION - A method is provided for optimizing requirements for brake size, complexity, and heat dissipation capability in an aircraft, wherein the aircraft is powered during ground travel by an onboard wheel drive assembly, including controllable drive means, mounted on at least one aircraft wheel, and ground travel is controlled by the pilot to move the aircraft on the ground without relying on the operation of the aircraft engines, while substantially minimizing brake use between landing and takeoff. Brakes can be optimally sized and configured to meet landing and taxi requirements, resulting in reduced brake size and complexity and increased effective heat dissipation. Substantially minimizing brake use during taxi produces improved brake cooling, substantially eliminating delays caused by slow brake heat shedding and enables rapid aircraft turnaround between landing and takeoff. | 05-09-2013 |
20130112806 | DRIVE SYSTEM WITH HARMONIC DRIVE FOR SELF-PROPELLED AIRCRAFT WHEEL - A drive system with harmonic drive designed to meet the high power and torque requirements required to drive an aircraft independently on the ground is provided. The drive system includes an electric motor driven by a harmonic drive assembly that may be configured to be integral with the motor. This drive system with harmonic drive can be effectively installed in an existing aircraft nose wheel or main wheel without changes to other components. | 05-09-2013 |
20130112807 | METHOD FOR REDUCING AIRCRAFT MAINTENANCE COSTS AND TIME OUT OF SERVICE - A method for reducing both an aircraft's scheduled and unscheduled maintenance costs and an aircraft's time out of service for maintenance, repair, and overhaul is provided. The present method is implemented by providing onboard drive means on an aircraft capable of translating torque through aircraft wheels and controllable to move the aircraft independently on the ground without reliance on the aircraft's engines or external tow vehicles. Substantially eliminating the use of an aircraft's main engines and tow vehicles to move the aircraft on the ground between landing and takeoff significantly reduces and may substantially eliminate aircraft maintenance requirements and aircraft time out of service and produces quantifiable substantial cost savings. | 05-09-2013 |
20130119190 | Motor for Driving Aircraft, Located Adjacent to Undercarriage Wheel - The invention disclosed is a self-propelled aircraft undercarriage for driving an aircraft on the ground, comprising: an axle; a strut supporting said axle; at least one wheel rotatably mounted on said axle; and drive means for driving said at least one wheel; characterized in that said drive means is disk shaped and is external to said wheel. In one embodiment of the invention, said drive means is mounted on said axle between said strut and said wheel. In a second embodiment, said drive means is mounted on said axle, on the side of said wheel furthest from said strut. | 05-16-2013 |
20130146704 | Landing Gear - A landing gear ( | 06-13-2013 |
20130161445 | LANDING GEAR WITH STEERABLE AXLE - There is described a landing gear having a bogie including a elongated beam ( | 06-27-2013 |
20130175388 | METHOD AND DEVICE FOR DRIVING AT LEAST ONE LANDING GEAR WHEEL OF AN AIRCRAFT BY MEANS OF A WHEEL MOTOR - The invention relates to a device for driving at least one landing gear wheel of an aircraft by means of a wheel motor, which is intended to be used in the stage when the aircraft is traveling on the ground, said aircraft having turbojet engines ( | 07-11-2013 |
20130181088 | AIRCRAFT VERSATILE POWER SYSTEM - An aircraft versatile power system ( | 07-18-2013 |
20130193267 | Nose-Wheel Steering Actuator - An actuator comprises a shaft | 08-01-2013 |
20130200209 | SYSTEM AND METHOD FOR MAINTAINING AIRCRAFT GROUND TRAVEL SPEED AND DIRECTION - A system and method for setting, controlling, or maintaining a selected taxi speed and route for one or more aircraft equipped with an onboard non-engine powered drive means powering one or more aircraft wheels to move the aircraft during taxi is provided. Taxi speed and/or route can be set, maintained, or controlled by the aircraft pilot or ground traffic control in conjunction with taxi speed and travel of other aircraft and ground vehicles. A pilot activates a speed control to set and control taxi speed. The aircraft will automatically travel on the ground at that speed without input from the pilot until it is necessary to change the speed manually or automatically. Airport ground traffic control can generate taxi profiles for all non-engine driven aircraft to automatically control, subject to pilot capability to override, the taxi of multiple aircraft at an airport in conjunction with ground vehicle movement. | 08-08-2013 |
20130200210 | DRIVE UNIT FOR AIRCRAFT RUNNING GEAR - A drive unit ( | 08-08-2013 |
20130214089 | METHOD FOR IMPROVING GROUND TRAVEL CAPABILITY AND ENHANCING STEALTH IN UNMANNED AERIAL VEHICLES - A method for improving ground movement capability and enhancing stealth in unmanned aerial vehicles is provided. The present method comprises providing, in an unmanned aerial vehicle equipped with wheels, one or more onboard drive means capable of translating torque through the vehicle wheels and controllable to move the unmanned aerial vehicle on the ground without reliance on the unmanned aerial vehicle main motive power source. The onboard drive means is controllably powered by a power source with substantially no acoustic signature to move the unmanned aerial vehicle quietly on the ground with only a minimal audible or visible footprint. This method provides a significant expansion of ground movement capability and expands the potential ground uses of unmanned aerial vehicles, particularly in military applications. The present method can also be applied to move any manned aerial vehicle or aircraft on the ground with only minimal audible or visible footprints. | 08-22-2013 |
20130233966 | METHOD OF RESETTING THE ORIENTATION OF AN AIRCRAFT UNDERCARRIAGE HAVING A STEERABLE BOTTOM PORTION - The invention provides a steering resetting method for an aircraft undercarriage that includes a leg in which a steerable bottom portion is mounted to slide against a suspension force generated by a shock absorber, the undercarriage being provided with a controllable steering member for causing the steerable bottom portion to swivel in response to an angular position setpoint, the undercarriage also including at least one angular position sensor adapted to generate an electrical signal representative of the angular position of the steerable bottom portion and suitable for use in controlling the steering member; the method comprises the step, performed when the steerable bottom portion is in an indexed angular position while the aircraft is in flight and the undercarriage is fully extended, of setting the electrical signal from the sensor to a determined reset value. | 09-12-2013 |
20130240664 | METHOD FOR DETERMINING RELATIONAL SPEED AND POSITION IN AN AIRCRAFT EQUIPPED WITH A LANDING GEAR DRIVE WHEEL - A method is provided for determining a relational speed and position of two moving components, preferably an aircraft landing gear drive wheel, a component of the drive wheel, a drive means driving the landing gear drive wheel, or a component of the drive means, using fiber optic technology. Speed and positional information relating to the relative positions of a part of a landing gear drive wheel and a part of a drive means driving the drive wheel can be obtained to ensure their proper engagement or interaction. A single optical fiber preferably provides information relating to drive wheel speed, drive means speed, drive wheel position, and drive means position, therefore enabling efficient autonomous ground travel of an aircraft equipped with this system. The present method can also be employed to monitor aircraft wheel speed in aircraft that use thrust from the engines to move an aircraft on the ground. | 09-19-2013 |
20130240665 | METHOD FOR IMPROVING EFFICIENCY OF AIRPORT DEICING OPERATIONS - A method for improving the efficiency of airport deicing operations is provided. The present method equips aircraft using an airport with onboard non-engine drive means powered to drive one or more landing gear wheels to move the aircraft on the ground autonomously during taxi without reliance on the aircraft's engines. Decreasing or substantially eliminating the operation of aircraft engines during taxi substantially eliminates the likelihood that ice, snow, slush, and other runway contaminants moved by the jet blast produced by aircraft engine operation during taxi will be sprayed from the runway onto surfaces of taxiing aircraft, both prior to deicing and after deicing. Deicing operations can be conducted more quickly, and repeated deicing operations on a single aircraft can be avoided. | 09-19-2013 |
20130256452 | DRIVING DEVICE FOR WHEEL OF AIRPLANE - The device of this invention comprises a revolution drive disc | 10-03-2013 |
20130264414 | COAXIAL CONTRA-ROTATING MOTORS FOR DIFFERENTIAL LANDING GEAR STEERING - A landing gear for an aircraft has a pair of spaced wheels, and a drive and steering arrangement operable to drive each of the wheels in either rotational direction. The drive and steering arrangement includes two permanent magnet rotors, with each of the permanent magnet rotors connected to rotate with one of the wheels. A single stator is positioned to drive both of the rotors. The drive and steering arrangement is mounted between the pair of wheels. | 10-10-2013 |
20130264415 | TRANSVERSE FLUX MACHINE UTILIZED AS PART OF A COMBINED LANDING GEAR SYSTEM - A landing gear for an aircraft has a set of axially spaced wheels rotatable about a common axis drive by a transverse flux drive. In another feature, a transverse flux drive includes a first rotor and a second rotor. One of the first and second rotors is positioned radially inwardly of the other. A single stator is positioned radially intermediate the first and second rotors. In another feature, a landing gear combination for use on an aircraft has a nose wheel assembly including at least one nose wheel to be associated with a nose cone on an aircraft. A main landing gear assembly is also associated with the aircraft. A transverse flux motor provides on-ground propulsion and/or braking to the aircraft. | 10-10-2013 |
20130284854 | COMPACT ELECTRIC TAXI ASSEMBLY FOR INSTALLATION ON AN AIRCRAFT - A method of taxing an aircraft with an electric taxi system (ETS) comprising of drive units producing airflow through rotors to pre-cool drive motors and produce rotation of aircraft wheels. The drive motors may be used to produce reverse motion of the aircraft and of operating the drive motors independently of one another so one can operate at a rate of speed and/or direction that is different from the second one of the drive units which may provide enhanced maneuverability of the aircraft during taxing. The drive motors may be controlled to produce regenerative power producing a deceleration of the aircraft that does not shift a center of gravity of the aircraft. | 10-31-2013 |
20130327884 | DEVICE FOR BRAKING AND ROTATING AN AIRCRAFT WHEEL - The invention relates to a device for braking and driving rotation of a wheel ( | 12-12-2013 |
20140027567 | LANDING GEAR ASSEMBLY OF AIRCRAFT - A landing gear assembly includes a control system configured to output an amount of operation corresponding to an operated physical amount; a wheel; a landing gear supported by a frame of the aircraft, and configured to rotatably support the wheel; a steering system configured to steer the wheel using the amount of operation as a command value; and a detection sensor configured not to output a detection signal when the aircraft flies in air, and to output the detection signal when the aircraft stays on ground. When the detection sensor does not output the detection signal, or when speed of the aircraft is higher than first limitation speed, the steering system orients rotation of the wheel in a longitudinal direction of the aircraft in disregard of the amount of operation. | 01-30-2014 |
20140048645 | LANDING GEAR ASSEMBLY - A landing gear assembly for an aircraft, the landing gear assembly including: an elongate bogie beam; a first axle bearing having an outer part rotatably coupled to an inner part, the outer part being coupled to the bogie beam, the inner part including a mounting aperture; and an elongate axle provided through the mounting aperture of the inner part and coupled thereto, wherein the axle is coupled to the inner part of the first axle bearing in a configuration such that the longitudinal axis of the axle is spaced from the axis of rotation of the inner part, such that rotation of the inner part causes a change in the orientation of the axle relative to the bogie beam. | 02-20-2014 |
20140061372 | AIRCRAFT LANDING GEAR - The invention provides an aircraft landing gear arrangement, comprising a bogie including a steerable axle pivotally mounted to said bogie. A locking mechanism is provided to lock the steerable axle in the straight ahead position, where the locking mechanism includes an over-centre linkage arrangement. | 03-06-2014 |
20140061373 | CONTROLS FOR AIRCRAFT E-TAXI - An e-Taxi system has a landing gear wheel and a motor for the landing gear wheel. A main controller communicates with an aircraft tiller, which is operable to send signals to the main control relative to desired steering through the landing gear wheel. A disable/enable switch selectively enables or disables the e-Taxi drive of the landing gear wheel and a reverse/forward switch is provided comparable to demand a desired direction of drive of the landing gear wheel. | 03-06-2014 |
20140061374 | METHOD FOR INCREASING LANDING GEAR EFFECTIVE LIFE AND AIRCRAFT LANDING CYCLES - A method for reducing maintenance and increasing the effective life of an aircraft's landing gear, thereby increasing the aircraft's flight and landing cycles is provided. The present method eliminates adverse stresses and forces produced on landing gear components by the operation of a tow vehicle to tow the aircraft on the ground by providing an onboard wheel driver that is powered to drive at least one of the aircraft's nose wheels or main wheels to move the aircraft on the ground. Movement of the aircraft on the ground is controlled by the operation of the driver-powered drive wheel, eliminating the possibility of damage to landing gear components associated with tug operation. | 03-06-2014 |
20140091173 | AIRCRAFT WHEEL WITH A UNIVERSAL DRIVE DOG - The invention relates to an aircraft wheel comprising a rim adapted to receive a tire, and a hub connected to the rim ( | 04-03-2014 |
20140124617 | AIRCRAFT ELECTRIC TAXI SYSTEM WITH FRICTION ACTUATED, BI-DIRECTIONAL CLUTCH - An electric taxi system (ETS) for an aircraft may comprise drive motors mounted coaxially with wheels of the aircraft. A clutch assembly may be interposed between the drive motor the wheel. The clutch assembly may transmit torque from the motor to the wheel when the wheel and a rotor of the motor rotate at the same rotational speed. The clutch assembly may self-disengage a rotor of the motor from the wheel when the wheel rotates faster than the rotor. | 05-08-2014 |
20140138478 | METHOD FOR REDUCING AIRLINE FLEET CARBON EMISSIONS AND CARBON EMISSIONS FEES - A method for reducing airline fleet carbon dioxide and greenhouse gas emissions and fees associated with the emission of greenhouse gases is provided. The method is implemented by equipping at least a substantial portion or all of the aircraft in an airline's fleet with onboard wheel drive means capable of translating torque through aircraft wheels and controllable to move the aircraft on the ground independently without complete reliance on the aircraft's engines or the use of external tow vehicles. One or more drive wheels, each of which may be powered by onboard electric, hydraulic, or other wheel drive means, are controllable to move each aircraft efficiently during ground travel without increasing carbon emissions. | 05-22-2014 |
20140138479 | DEVICE FOR ELECTRICALLY POWERING AN AIRCRAFT ON THE GROUND - An electrical power supply device for an aircraft on the ground, the device including two electricity generators driven by an auxiliary power unit, wherein the first generator is connected by a selective connection/disconnection mechanism to an aircraft network and to an electrical taxiing network, and is configured to deliver either a first AC voltage to the aircraft network when it is connected to that network, or an AC voltage or a power to the taxiing network when it is connected to that network, and wherein the second generator is connected by the connection/disconnection mechanism to the aircraft network to deliver the first AC voltage to that network solely when the first generator is powering the taxiing network. | 05-22-2014 |
20140158820 | AIRCRAFT LANDING GEAR - An aircraft landing gear comprising: a shock-absorbing main leg having a sprung part for attachment to an aircraft and an un-sprung part including a slider and an axle carrying at least one wheel, the wheel having a toothed ring gear; a drive transmission mounted externally on the sprung part, or on the un-sprung part, of the main leg, the drive transmission having at least one motor and a drive pinion for meshing with the toothed ring of the wheel; and an actuator for lifting the drive transmission into and out of driving engagement with the toothed ring and for maintaining the driving engagement as the landing gear deflects during a ground taxiing operation. Also, a method of operating the aircraft landing gear. | 06-12-2014 |
20140203136 | AIRPORT CAPACITY FROM TAKEOFF ASSIST - Systems and methods for ground-based aircraft thrust systems are provided. In particular, some embodiments use an electromechanical thrust assembly to accelerate aircraft using ground-based energy for takeoff. The assembly can include one or more sleds, one or more maglev tracks, and/or one or more linear motors. Airplanes are loaded onto a sled (e.g., a saddle-shaped sled) that supports and balances the airplane instead of the landing gear aboard the aircraft. The sled levitates above the ground using high-density permanent magnet arrays. Magnetic levitation forces are varied along the assembly to account for lift provided by airflow over the wings. An aircraft thrust system includes a magnetically levitated saddle-shaped sled with airbags that support an aircraft during takeoff acceleration coupled with a linear motor that spans the length of the distance needed for takeoff. | 07-24-2014 |
20140209733 | NOVEL HELICOPTER TUG SYSTEM - A helicopter tug system features a helicopter with skids. A powered track assembly features a microprocessor connected to a power supply, a drive hub and an idler hub, a track located on the drive hub and the idler hub, a motor connected to the drive hub and the power supply, a receiver connected to the microprocessor, and a clamp located on a track assembly top. A caster support features a caster support frame having a wheel and the clamp located on a caster support frame top. The system features a radio control unit with a transmitter and a radio control power supply. A first powered track assembly is attached to the first helicopter skid and a first caster support is attached to the second helicopter skid. The radio control unit sends a first signal to the first track assembly to move the helicopter. | 07-31-2014 |
20140239119 | MAIN LANDING GEAR COMPACT AXLE STEERING - A landing gear system comprises a bogie beam, a landing gear axle pivotally mounted to the bogie beam, a steering rack, a linear actuator assembly, and a steering control link. The steering rack is secured transversely to the bogie beam and is longitudinally spaced apart from the landing gear axle. The linear actuator assembly is operable to laterally translate the steering rack. The steering control link is longitudinally extendable and has an actuator end secured to the steering rack, and an axle end of the steering control link engaged with the landing gear axle. The steering control link and the landing gear axle are pivotable relative to the bogie beam about a common axis. | 08-28-2014 |
20140239120 | MAIN LANDING GEAR BIAS AXLE STEERING - A bias steered landing gear system comprises a bogie beam, a first landing gear axle pivotally mounted to the bogie beam, and a steering actuator assembly. The first landing gear axle is pivotable through an axle steering range which includes a maximum inboard steering angle and a maximum outboard steering angle. The steering actuator assembly is operable to apply a steering force to steer the first landing gear axle through the axle steering range between the maximum inboard steering angle and the maximum outboard steering angle. The maximum inboard steering angle is substantially larger than the maximum outboard steering angle. | 08-28-2014 |
20140246539 | LANDING GEAR DRIVE SYSTEMS - A drive system for rotating a wheel of an aircraft landing gear includes a motor operable to rotate a first drive pinion via a first drive path and a driven gear adapted to be fixed to the wheel. The drive system has a first configuration in which the first drive pinion is capable of meshing with the driven gear to permit the motor to drive the driven gear via the first drive path. One of the first drive pinion and the driven gear comprises a first sprocket and the other of the first drive pinion and the driven gear comprises a series of rollers arranged to form a ring. Each roller being rotatable about a roller axis at a fixed distance from an axis of rotation of the first drive pinion or driven gear, respectively. | 09-04-2014 |
20140284421 | BETWEEN-WHEEL BOGIE MOUNTED TAXI SYSTEM - A motor-driven landing gear apparatus for an aircraft may include one or more motors attached to a bogie of the landing gear. At least one wheel-driving device may be attached to an axle of the landing gear. At least one telescoping shaft may interconnect the at least one motor and the at least one wheel-driving device. | 09-25-2014 |
20140332622 | AIRCRAFT SELECTIVELY ENGAGEABLE ELECTRIC TAXI SYSTEM - An electric taxi system (ETS) for an aircraft may include an annular output gearbox positioned between a wheel and a main strut of a main landing gear of the aircraft. The output gearbox may surround a brake piston assembly of the wheel of the aircraft. One or more selectively operable engaging assemblies, for selectively coupling the ETS with the wheel of the aircraft, may be positioned between the output gearbox and the wheel of the aircraft. The one or more selectively operable engaging assemblies may be coupled with an output gear of the output gearbox to rotate with the output gear. | 11-13-2014 |
20140353423 | INTEGRATED HYDROSTATIC TRANSMISSION FOR ELECTRONIC TAXIING OPERATIONS - A system, method and apparatus for propelling an object across a surface is disclosed. A motor is disposed at a location of a wheel of the object and draws electrical power directly from a power supply in order to generate a constant mechanical motion such as a constant rotation. A transmission receives the constant mechanical motion from the motor and generates a variable mechanical motion such as a variable-speed rotation at a wheel. Rotation of the wheel propels the object across the surface. | 12-04-2014 |
20150021431 | METHOD FOR ACCELERATED POWERED SELF PUSH BACK OF AN AIRCRAFT - A method for accelerated power push back of an aircraft equipped with a pilot-controlled engines-off taxi system that drives the aircraft without reliance on the aircraft's main engines or tugs is provided. An aircraft is quickly and efficiently moved out of a gate where it is positioned in a nose-in orientation. The pilot controls the taxi system to drive the aircraft in reverse along a perpendicular path away from the terminal to a location where there is sufficient space for the aircraft to stop and turn, and the aircraft is turned and driven in a forward direction to a takeoff runway. Pilot reliance on ground personnel guidance during push back maneuvers is minimized by providing a monitoring system designed to monitor gate and ramp areas around the aircraft in any visibility or environmental conditions and provide feedback to the pilot. | 01-22-2015 |
20150034761 | COUPLING DEVICE OF A MOTORIZED WHEEL OF AIRCRAFT LANDING GEAR - An elastic device for coupling between an aircraft landing gear wheel and a coaxial motorization member for motorization of the wheel. The elastic device comprises a plurality of arms to be rotationally coupled to the motorization member adjacent a first radially inner end and which are to be linked to the wheel adjacent their radially outer opposite end, the arms being substantially rigid in a plane perpendicular to the rotational axis of the wheel and flexible in directions substantially transverse to the plane. | 02-05-2015 |
20150076280 | SYSTEM AND METHOD FOR IMPROVING EFFICIENCY OF AIRCRAFT GATE SERVICES AND TURNAROUND - A system and method is provided for improving efficiency of aircraft gate services and reducing time spent by an aircraft parked parallel to an airport terminal wherein aircraft utilities and gate services provided during turnaround are supported by an arrangement of flexibly movable, service and utility-carrying extendable passenger boarding bridges that enable passenger and baggage exchange concurrently with connection of utilities and provision of gate services to the aircraft. Baggage transfer is facilitated by conveyors mounted on one or more loading bridges and designed to provide a direct connection between an aircraft and a terminal. Aircraft are maneuvered by a pilot into and out of a parallel parking location in a forward direction by an engines-off electric taxi system, enabling loading bridge, utility, and service connections to be made to multiple aircraft doors as soon as the aircraft reaches a parking location and then quickly disconnected upon departure. | 03-19-2015 |
20150097077 | PASSIVE FAIL SAFE COUPLING MECHANISM - A ground propulsion assembly for an aircraft includes an axle, a wheel rotatably connected to the axle, and a transmission. The transmission includes a housing mounted proximate the axle and a drive element disposed at least partially outside of the housing and operatively connected to a power input. A disengagement spring is disposed between the transmission and the axle and the disengagement spring is configured to urge the drive element out of engagement with the wheel. An actuator is operatively connected between the transmission and the axle, the actuator being configured to selectively generate a force in opposition to the disengagement spring such that the drive element moves relative the wheel and operatively engages the wheel to transfer torque to the wheel. | 04-09-2015 |
20150097078 | DRIVE UNIT FOR AIRCRAFT LANDING GEAR WITH INTEGRATED COOLING - A drive unit for an aircraft ground wheel associated with a brake unit for braking the ground wheel includes: a driving motor drivingly coupleable to the ground wheel; and a cooling system including at least a drive cooling unit configured to generate a drive cooling air stream for cooling the drive unit and a brake cooling unit configured to generate a brake cooling air stream by sucking in air from the brake unit. A method of controlling such drive unit in which the cooling system is driven by the driving motor of the drive unit includes: decoupling the driving motor from the ground wheel and increasing the rotational speed of the driving motor to increase the amount of generated drive cooling air, when an operating condition of the ground wheel and/or of the drive unit is switched from a propulsion mode to a non-propulsion mode. | 04-09-2015 |
20150129712 | METHOD FOR IMPROVING AIRPORT RAMP THROUGHPUT - A method for improving airport and ramp throughput is provided. The method minimizes the time interval between an aircraft's landing and takeoff by independently moving the aircraft with an onboard electric driver that drives at least one of the aircraft's wheels on the ground without the aircraft's engines. Turnaround time and aircraft idle time are reduced by eliminating engine operation while the aircraft is moving in the ramp area. The time between when an aircraft is not moving between pushback and taxi forward is substantially eliminated, leading to more efficient ramp operations as ramp space is freed for through traffic. | 05-14-2015 |
20150129713 | STEERING CONTROL IN AN AIRCRAFT EQUIPPED WITH A WHEEL DRIVE SYSTEM - Control of aircraft steering during ground travel is provided in an aircraft equipped with an engines-off wheel drive system controllable to move the aircraft autonomously on the ground without reliance on the aircraft's main engines or external tow vehicles. The wheel drive system is designed to interact with the aircraft's nose wheel hydraulic steering system to augment or replace the hydraulic steering system with the operation of the wheel drive system at taxi speeds, particularly at very low taxi speeds and even when the aircraft is stopped, to steer the aircraft as it maneuvers through turns during ground travel between landing and takeoff and at other times. | 05-14-2015 |
20150136899 | AIRCRAFT WHEEL - An aircraft wheel which is provided with rotational driving unit ( | 05-21-2015 |
20150314863 | WHEEL DRIVE UNIT FOR ATTACHMENT TO AN AIRCRAFT RUNNING GEAR - Wheel drive unit for attachment to an aircraft running gear, said wheel drive unit including a drive motor or a drive motor with subsequent transmission and comprising the following features: (a) a mounting component adapted to be mounted to a supporting component of the aircraft running gear; (b) a coupling component releasably anchored to the mounting component in non-rotatable fashion; (c) the drive motor being supported by means of the coupling component such that the coupling component provides for torque support of the drive motor; (d) and a pluggable connection for connecting at least one pair of electric line sections and/or at least one pair of fluid line sections: (e) the torque output of the drive motor or of the subsequent transmission being adapted to establish a torque-transmitting connection to a wheel of the aircraft running gear when the wheel drive unit is attached to the aircraft running gear; (f) and the wheel drive unit—without the mounting component—, when the anchoring to the mounting component is released, being demountable from the aircraft running gear which also separates the two parts of the pluggable connection from each other. | 11-05-2015 |
20150323019 | LANDING GEAR WITH A BI-DIRECTIONAL CLUTCH - An aircraft landing gear including a wheel rotatable about an axle, a motor, and a bi-directional overrunning clutch, such as a roller or sprag clutch, operable to either connect the wheel with the motor or disconnect the wheel from the motor. The bi-directional clutch includes a ring-shaped overrunning track connected to the wheel, a ring-shaped drive track connected to the motor and concentrically aligned with the overrunning track, and a plurality of movable elements retained between the overrunning track and the drive track. The movable elements are movable between: a driven configuration in which they prevent relative rotation between the drive track and the overrunning track to thereby permit the wheel to be driven by the motor; and an overrunning configuration in which they permit relative rotation between the drive track and the overrunning track to thereby disconnect the wheel from the motor. | 11-12-2015 |
20150336660 | ELECTRIC POWER CONNECTOR FOR AIRCRAFT DRIVE WHEEL DRIVE SYSTEM - An electric connector assembly is provided that is designed to provide a simple and reliable electric connection between a source of electric power on an aircraft and a plurality of electrical connections, such as those from stator windings, in an electric drive means powering an aircraft landing gear drive wheel. The plurality of drive means electrical connections are individually connected to power distribution elements designed to significantly reduce the number of connectors required to establish an electrical connection between the drive means and an aircraft power supply. The reduced number of connectors is directed out of the wheel and guided along a path by a path guide element to a connector element designed to connect directly with a wire harness or other connection with an aircraft source of electric power. This electric connector design facilitates disconnection and reconnection when removal and remounting of the drive wheel is required. | 11-26-2015 |
20150367938 | OCEAN - AIR VEHICLE - A vehicle having a wing, a forward propeller configured for forward flight, and an aft propeller configured for submerged travel in a rearward direction. The vehicle center of mass is aft of its floating center of buoyancy, and center of mass and the floating center of buoyancy lie between the first and second propellers. The vehicle has a natural floating orientation in which the vehicle, while floating, has its first propeller located in the air and positioned for initiating airborne flight in a forward direction, and in which the vehicle has its second propeller located in the liquid and positioned for initiating submerged travel in a rearward direction. | 12-24-2015 |
20150375853 | THRUST MANAGEMENT AND INTERFACE FOR AIRCRAFT TAXI OPERATIONS - An aircraft electric taxi drive system may provide electric taxiing of an aircraft by integrating control of an electric drive and an engine during the taxi phase of a flight plan. In some embodiments, the engine may provide supplemental drive to the aircraft's wheels during electric taxiing. The engine may be maintained on while the electric drive provides the main driving force to the wheels. A controller may determine the criteria to operate the engine as the electric drive taxis the aircraft to achieve a target ground speed. In some embodiments, a pilot interface may integrate control of the electric drive and the engine into a single throttle control providing the pilot an intuitive and singular point to throttle the aircraft without having to decide which taxi source is providing the taxi driving force. | 12-31-2015 |
20150375854 | DIFFERENTIAL STEERING CONTROL OF ELECTRIC TAXI LANDING GEAR - An aircraft taxi control system may include a left main gear (MG) drive motor, a right MG motor, a first motor drive controller configured to produce a left motor torque signal responsively to nose gear angle (NGA) and nose wheel speed (NGS), and a second motor drive controller configured to produce a right motor toque signal responsively to the NGA and the NGS. The left motor torque signal and the right motor torque signal may be coordinated to reduce lateral loading of the nose wheel during a turning maneuver. | 12-31-2015 |
20160009383 | DRIVE UNIT FOR AIRCRAFT RUNNING GEAR | 01-14-2016 |
20160016658 | Aircraft Auxiliary Drive Wheel Taxi System - An auxiliary drive wheel taxi system for driving an aircraft autonomously without reliance on engine operation during ground travel is designed for installation in an aircraft location other than on nose or main landing gear components. The auxiliary drive wheel taxi system may be mounted in an integral housing located internally or externally on an aircraft's body at a selected location relative to main or nose landing gears and includes one or more auxiliary drive wheels mounted on an extensible strut adapted to extend from and retract into the housing. An electric, hydraulic, or pneumatic non-engine drive means controllable to provide torque required to rotate the drive wheel and drive the aircraft at desired taxi speeds may be mounted in a selected location to drive the auxiliary drive wheel. The manually or automatically controllable auxiliary taxi system is operable only to drive the aircraft during taxi. | 01-21-2016 |
20160016659 | METHOD FOR ADDING VALUE TO OPERATION OF LONG HAUL AIRCRAFT - A method is provided for adding value to operation of long haul aircraft when aircraft designed for long haul flight are moved quietly and efficiently on the ground without operation of aircraft engines. The number of long haul aircraft at airports with slot controls, including airports that are constrained from operation at certain times by curfews that limit hours when long haul aircraft are able to operate, can be increased significantly. Long haul aircraft powered by onboard non-engine drive means or moved manually or automatically by tugs, tow vehicles, or other transfer apparatus have the capability to move quietly and efficiently to a runway to be ready for takeoff as soon as curfew is lifted and to move without engines to an airport arrival location after landing right before curfew starts, effectively expanding and increasing the number of available long haul slots and the value of operating long haul aircraft. | 01-21-2016 |
20160039535 | AIRPORT CAPACITY FROM TAKEOFF ASSIST - Systems and methods for ground-based aircraft thrust systems are provided. A sled can be adapted to support at least wings and a fuselage of an aircraft. A guideway can be configured to receive the sled and move the sled along the guideway for assisted takeoff of the aircraft. A magnetic propulsion system can be configured to levitate the sled and propel the sled along the guideway independent of thrust provided by the aircraft. | 02-11-2016 |
20160096618 | AIRCRAFT TAXIING SYSTEM - A taxiing system for an aircraft including an undercarriage having a wheel, includes an electric motor associated with the wheel, an electric controller of the electric motor, connected to an output of an electrical power supply, and a taxiing control computer configured to determine control instructions for the electric motor and to transmit these instructions to the electric controller. The taxiing control computer is configured to receive braking of the aircraft commands during the taxiing of the aircraft and to determine control instructions for the electric motor corresponding to operation of the motor in generator mode when it receives a braking command. The electric controller is connected to an energy absorber making it possible to absorb the electric energy produced by the electric motor when the latter is operating in generator mode. | 04-07-2016 |
20160096620 | AIRCRAFT TAXIING SYSTEM - An aircraft taxiing system includes a drive wheel, mounted between the wheels of an aircraft's landing gear. The drive wheel is selectively deployable through an actuation system into a position in which it engages the ground in order to move the aircraft. The drive wheel incorporates a hub motor. | 04-07-2016 |
20160101849 | AIRCRAFT LANDING GEAR - The invention relates to an aircraft landing gear equipped with a steering device ( | 04-14-2016 |
20160122008 | Roller Traction Drive System for an Aircraft Drive Wheel Drive System - A roller traction drive system integral with a non-engine drive means and a clutch assembly in an aircraft drive wheel drive system capable of moving an aircraft autonomously on the ground is provided. The roller traction drive system is selectively activated by the clutch assembly into and out of actuating contact with the non-engine drive means to drive the aircraft drive wheel. Roller traction drive system components are made of materials designed to enable dry running and operation at the torques, drive means speeds, and reduction ratios required to actuate a drive means and drive a drive wheel for autonomous aircraft ground movement. Roller traction drive materials may be selected to maintain effective torque transfer between roller traction drive system components and the non-engine drive means as well as to minimize undesirable thermal expansion. | 05-05-2016 |
20160137293 | ENCLOSED DRONE APPARATUS AND METHOD FOR USE THEREOF - An unmanned aerial vehicle apparatus ( | 05-19-2016 |
20160144981 | DEVICE FOR MOVING AIRCRAFT ALONG THE GROUND - A device for moving aircraft along the ground includes at least one runway and at least one aircraft. The aircraft is secured to a tractor element having a magnetic mass formed mainly of type II superconductor material and the runway includes stator coils arranged in the runway with at least one line of coils parallel to an axis of the runway. A command/control system supplies power to the stator coils to generate a magnetic field that levitates the tractor element, magnetized beforehand into a phase II superconducting state, above the runway. | 05-26-2016 |
20160167772 | CONTROL METHOD AND APPARATUS FOR AN AIRCRAFT WHEN TAXIING | 06-16-2016 |
20160176514 | ROTARY WING DRONE | 06-23-2016 |
20160176515 | LANDING GEAR METHOD AND APPARATUS FOR BRAKING AND MANEUVERING | 06-23-2016 |
20160176517 | COCKPIT CONTROL SYSTEM FOR CONTROLLING GROUND TRAVEL IN AIRCRAFT EQUIPPED WITH ENGINE-FREE ELECTRIC TAXI SYSTEM | 06-23-2016 |
20160185452 | Clutch Driven Aircraft Electric Taxi System and Method - A clutch driven aircraft electric taxi system is provided with a clutch assembly designed to be automatically selectively engaged or disengaged as required to drive an aircraft autonomously during ground operations. The clutch assembly is mounted integrally with other electric taxi system components completely within an aircraft landing gear wheel and may be designed with one way overrunning or selectable clutch engagement capability in one or both rotational directions, preferably using an arrangement of ratcheting struts and clutch elements adapted specifically for use in an aircraft landing gear drive wheel environment. The clutch assembly may automatically disengage in response to predetermined defined conditions or operating parameters. A failsafe overrunning capability ensures that the clutch assembly will not engage taxi system drive components so that an aircraft's wheel will not be driven during aircraft operation when safety considerations dictate that the aircraft electric taxi system should not be engaged. | 06-30-2016 |
20160200425 | Torque Transmission in an Aircraft Drive Wheel Drive System | 07-14-2016 |
20160200428 | AIRCRAFT AUTONOMOUS PUSHBACK | 07-14-2016 |
20160375992 | AIRCRAFT LANDING GEAR ARRANGEMENT AND A NOSE LANDING GEAR ASSEMBLY - An aircraft landing gear arrangement comprises a nose landing gear assembly and at least one main landing gear assembly. The nose landing gear assembly has a nose landing gear wheel with a high energy brake apparatus therein. The main landing gear assembly has a main landing gear wheel with a high energy brake apparatus therein and a main landing gear wheel with a motor therein. The motor is used for driving the main landing wheel during taxiing of the aircraft. | 12-29-2016 |
20190144103 | DRIVE SYSTEM FOR AIRCRAFT LANDING GEAR | 05-16-2019 |