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Bell Helicopter Textron Inc
Bell Helicopter Textron Inc_20131212

Bell Helicopter Textron Inc patents


Recent patent applications related to Bell Helicopter Textron Inc. Bell Helicopter Textron Inc is listed as an Agent/Assignee. Note: Bell Helicopter Textron Inc may have other listings under different names/spellings. We're not affiliated with Bell Helicopter Textron Inc, we're just tracking patents.

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Tiltrotor control

The present invention includes a thrust control apparatus, method and kit for a tiltrotor craft comprising a thrust control handle; a first and a second bar connected to the thrust control handle and connected to a floor support; a first end of a transverse bar connected to the first bar;... Bell Helicopter Textron Inc

Tiltrotor aircraft having spherical bearing mounted pylon assemblies

A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The... Bell Helicopter Textron Inc

Tiltrotor aircraft having pillow block mounted pylon assemblies

A pedestal assembly for receiving a pylon assembly of a tiltrotor aircraft having a helicopter mode and an airplane mode, the tiltrotor aircraft having an airframe including a fuselage and a wing. The pedestal assembly includes an inboard pedestal supported by the airframe and positioned above the wing. The inboard... Bell Helicopter Textron Inc

Tiltrotor aircraft having journal bearing mounted pylon assemblies

A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The... Bell Helicopter Textron Inc

Method and aircraft sensor and actuator failure protection using reconfigurable flight control laws

A method and apparatus for reconfiguring flight control of an aircraft during a failure while the aircraft is flying. The method and apparatus provide a control law that is software-implemented and configured to automatically send flight control data to a mixing/mapping matrix. The method and apparatus also provide a reconfiguration... Bell Helicopter Textron Inc

Articulated main rotor hub with inwardly cf bearing and 3% flapping hinge offset

A rotary system including a grip having an opening forming a first bridge for receiving a centrifugal force bearing that faces inwardly towards the rotor mast. A rotor blade couples to the grip and a pitch horn positioned outside the opening pitches the rotor blade during flight. A bearing assembly... Bell Helicopter Textron Inc

Non-contact infrared temperature sensor for health monitoring of rotorcraft bearings

The present invention includes an apparatus and method for measuring hysteretic heating or stress of one or more bearings of a craft comprising: one or more non-contact temperature sensors attached to the craft and directed toward the one or more bearings; and a computer connected to the one or more... Bell Helicopter Textron Inc

Method and assembly for manufacturing door skin and wall with doorway

A method of manufacturing a door skin and a fuselage wall having a doorway and a member extending into the doorway for abutting the door includes placing a first sheet of uncured composite material on a mold plate to define the door and fuselage skin, disposing an insert over the... Bell Helicopter Textron Inc

Aircraft drive system

The present invention includes an aircraft drive system comprising a main rotor gearbox comprising a first and a second input; a first drive system comprising a first engine reduction gearbox connecting a first engine to the first input of the main rotor gearbox at a reduced shaft speed; and a... Bell Helicopter Textron Inc

Oil filter with impending and full-bypass indicators

A removable oil filter system includes an oil filter mount, an oil filter element removably connected to the oil filter mount, an impending-bypass indicator connected to the oil filter mount and in fluid communication with an oil in the oil filter system, and a full-bypass indicator in fluid communication with... Bell Helicopter Textron Inc

Oil-level sensor for a gearbox

An apparatus for lubricating a non-pressurized gearbox includes a low-to-high lubricant level sensor configured to sense a static level of a lubricant within the gearbox and to display the static level of the lubricant.... Bell Helicopter Textron Inc

Articulating bifurcated integrated transition duct assembly

A transition duct assembly includes a shared connector, and a plurality of primary cooling pathways for cooling one or more systems or components. Each primary cooling pathway includes a transition duct in fluid communication with the shared connector, and a transition connector in fluid communication with the transition duct.... Bell Helicopter Textron Inc

Multi-drilled fasteners

The present invention includes a fastener comprising: a fastener body having a longitudinal axis and a first external male threaded portion, and two or more through-holes perpendicular to the longitudinal axis of the fastener body in the threaded portion.... Bell Helicopter Textron Inc

Active thermal management for fire-tolerant drive systems

The present invention includes a thermal management system and method including: a drive shaft; one or more fans or impellers in fluid communication with at least a portion of the drive shaft; and one or more air management baffles configured to direct air flow between the impeller and the portion... Bell Helicopter Textron Inc

High speed engine reduction gearboxes

An engine reduction gear system includes at least two self-contained, independent engine reduction gearboxes, each capable of connecting to an aircraft engine. Each of the engine reduction gearboxes provides redundant, reduced speed to a main rotor gearbox via a shaft.... Bell Helicopter Textron Inc

Fan with labyrinth seal for prevention of water damage to a gearbox

The present invention includes a system, method and kit for preventing or reducing water penetration of a gearbox, the system including: a fan or impeller coupled to the gearbox; and a hub coupled to the fan and shaped to provide a labyrinth seal that prevents or reduces water penetration into... Bell Helicopter Textron Inc

Convective cooling of a pressurized gearbox

The present invention includes a cooling system for a gearbox, the cooling system comprising: a pressurized housing in fluid communication with the gearbox configured to circulate a pressurized lubricant; and one or more cooling fins about the pressurized housing, wherein heat from the pressurized lubricant within the pressurized housing is... Bell Helicopter Textron Inc

Fan mounted on gearshaft

A cooling apparatus includes one or more fans and one or more shafts. Each of the one or more fans includes a fan blade assembly. Each of the one or more shafts is operably coupled to an engine or a gearbox that rotates the shaft. Each fan blade assembly of... Bell Helicopter Textron Inc

Redundant fans for cooling system

An apparatus includes a shared cooling device for cooling one or more systems or components, and a plurality of primary cooling pathways. Each of the primary cooling pathways includes a fan, and each fan is in fluid communication with the shared cooling device.... Bell Helicopter Textron Inc

Redundant cooling system

A cooling apparatus includes a shared cooling device for one or more systems or components, and a plurality of primary cooling pathways. Each of the primary cooling pathways includes a transition duct and a fan. The transition duct is in fluid communication with the shared cooling device. The fan is... Bell Helicopter Textron Inc

Non-pressurized accessory gearbox

A non-pressurized accessory gearbox for an aircraft includes: a housing, one or more gears disposed within the housing, an input rotating member to receive input from a main rotor gearbox via a shaft connected to the one or more gears, and one or more output rotating members in communication with... Bell Helicopter Textron Inc

Protective labyrinth over mast seal to protect from water intrusion

The present invention includes a helicopter rotor seal assembly comprising: a rotor mast having a longitudinal axis and an outer surface; a sleeve aligned longitudinally with the axis and surrounding a portion of the rotor mast, the sleeve having an outer surface, and an inner surface; an annular horizontal seal... Bell Helicopter Textron Inc

Adjustable position pitot probe mount

The present invention includes an adjustable Pitot tube and method for using the same for operating or flight testing an aircraft comprising: a Pitot probe; a streamline tube connected to the Pitot probe; a mount on the aircraft connected to the streamline tube, wherein the streamline tube can at least... Bell Helicopter Textron Inc

Modular payload systems for aircraft

A modular payload system for an aircraft includes a modular bay recessed within the aircraft. The modular bay includes a modular bay interface. The modular payload system includes a plurality of payload modules each having a respective function and a payload interface adapted to connect to at least a portion... Bell Helicopter Textron Inc

Cross-wing driveshaft channel

An aircraft wing including a fuel tank located in the wing, a channel defining a cavity in the fuel tank, the channel including at least two channel ends terminating at an upper or lower wing surface, a driveshaft located in the cavity; and an access panel located on the wing... Bell Helicopter Textron Inc

Wing pivot structure for tiltrotor aircraft

A wing pivot apparatus for rotating a wing between a flight orientation and a stowed orientation relative to a fuselage of a tiltrotor aircraft. The apparatus includes a stow ring that is rotatably mounted to the fuselage. Forward and aft wing attach assemblies are coupled respectively to forward and aft... Bell Helicopter Textron Inc

Wing pivot structures for tiltrotor aircraft

A wing pivot apparatus for rotating a wing between a flight orientation and a stowed orientation relative to a fuselage of a tiltrotor aircraft. The apparatus includes a guide ring that is fixably coupled to the fuselage. Forward and aft wing attach assemblies are coupled respectively to forward and aft... Bell Helicopter Textron Inc

Foldable aircraft with anhedral stabilizing wings

An aircraft including a fuselage having a longitudinal axis extending through the fuselage front end and the fuselage rear end; a foldable wing located on the fuselage and being movable between a flight position wherein the wing is generally perpendicular to the longitudinal axis, and a stowed position wherein the... Bell Helicopter Textron Inc

Chordwise folding and locking of rotor systems

An apparatus for chordwise folding and locking of rotor systems includes a grip assembly and a harness disposed at least partially within and coupled to the grip assembly. A rotor blade is rotatably coupled to the grip assembly and the harness. The rotor blade has a radially extended orientation and... Bell Helicopter Textron Inc

Wing extension winglets for tiltrotor aircraft

A pylon assembly for a tiltrotor aircraft includes a rotor assembly operable to rotate between a generally vertical orientation, in a VTOL flight mode, and a generally horizontal orientation, in a forward flight mode, and having an intermediate orientation therebetween, in a conversion flight mode. The rotor assembly includes a... Bell Helicopter Textron Inc

Storage modes for tiltrotor aircraft

A tiltrotor aircraft having a VTOL flight mode, a forward flight mode and a storage mode includes a fuselage having a wing rotatably mounted thereto. The wing has an orientation generally perpendicular to the fuselage, in the flight modes, and an orientation generally parallel to the fuselage, in the storage... Bell Helicopter Textron Inc

Storage modes for tiltrotor aircraft

A tiltrotor aircraft having a VTOL flight mode, a forward flight mode and a storage mode includes a fuselage having a wing rotatably mounted thereto. The wing has an orientation generally perpendicular to the fuselage, in the flight modes, and an orientation generally parallel to the fuselage, in the storage... Bell Helicopter Textron Inc

Storage modes for tiltrotor aircraft

A tiltrotor aircraft having a VTOL flight mode, a forward flight mode and a storage mode includes a fuselage having a wing rotatably mounted thereto. The wing has an orientation generally perpendicular to the fuselage, in the flight modes, and an orientation generally parallel to the fuselage, in the storage... Bell Helicopter Textron Inc

Storage modes for tiltrotor aircraft

A tiltrotor aircraft having a VTOL flight mode, a forward flight mode and a storage mode includes a fuselage having a wing rotatably mounted thereto. The wing has an orientation generally perpendicular to the fuselage, in the flight modes, and an orientation generally parallel to the fuselage, in the storage... Bell Helicopter Textron Inc

Rotating proprotor arrangement for a tiltrotor aircraft

A propulsion system includes an engine disposed within a fuselage, a first gearbox coupled to the engine, a wing member having an upper wing skin and torque box formed by a first rib, a second rib, a first spar and second spar, a drive shaft coupled to the first gearbox... Bell Helicopter Textron Inc

03/22/18 / #20180079480

Method and improving the crashworthiness of aircraft fluid systems

A fluid connection system for fluidly connecting a pair of fluid reservoirs, such as fuel cells, includes a bellowed portion surrounding a connection portion through which fluid can flow between the two reservoirs. The bellowed portion allows for relative movement between the two reservoirs without breaking the fluid-tight connection between... Bell Helicopter Textron Inc

03/22/18 / #20180079484

Fuselage mounted engine with wing stow

An aircraft has a fuselage, an engine disposed within the fuselage, a rotatable wing disposed above the fuselage and selectively rotatable about a wing rotation axis, and a plurality of interconnect driveshafts disposed within the rotatable wing, and at least one drive system component that is connected between the engine... Bell Helicopter Textron Inc

03/22/18 / #20180079487

Tiltrotor articulated wing extension

An aircraft has a wing, a pylon carried by the wing, at least one of a rotor system component and a drive system component disposed within the pylon, and a wing extension carried by the at least one of a rotor system component and drive system component, wherein the wing... Bell Helicopter Textron Inc

03/15/18 / #20180072409

Rotorcraft elastomeric bearing assembly

In some embodiments, a rotorcraft may include a yoke, a blade, a spindle associated with the yoke, and an elastomeric bearing assembly. The center length of the spindle may define a center axis that passes through a center of the elastomeric bearing assembly. The elastomeric bearing assembly may contain a... Bell Helicopter Textron Inc

03/08/18 / #20180067006

Method and system for measuring torque in a tiltrotor aircraft

A method for calculating torque through a rotor mast of a propulsion system of a tiltrotor aircraft includes receiving the torque being applied through a quill shaft of the rotorcraft. The quill shaft is located between a fixed gearbox and a spindle gearbox, and the spindle gearbox is rotatable about... Bell Helicopter Textron Inc

03/08/18 / #20180065328

Processes for repairing complex laminated composites

Complex laminated composites may be repaired by removal of individual damaged plies through peeling in order to exploit the weaker interlaminar properties of these composites. Upon removal of the individual damaged plies through peeling, replacement plies may be added to restore the laminated composite. In addition, when damage extends through... Bell Helicopter Textron Inc

03/01/18 / #20180057148

Tiltrotor aircraft having active wing extensions

A tiltrotor aircraft includes a fuselage supporting first and second wings each having an outboard end. First and second nacelles are respectively coupled to the outboard ends of the first and second wings. The first and second nacelles each have an outboard end. First and second wing extensions are rotatably... Bell Helicopter Textron Inc

03/01/18 / #20180057157

Tilting ducted fan aircraft generating a pitch control moment

In some embodiments, an aircraft includes a fuselage having a forward portion and an aft portion. First and second ducted fans are supported by the forward portion of the fuselage. The first and second ducted fans are tiltable relative to the fuselage between a generally horizontal orientation, in a vertical... Bell Helicopter Textron Inc

03/01/18 / #20180057159

Tiltrotor aircraft having rotatable wing extensions

A pylon assembly for a tiltrotor aircraft includes a fixed pylon having an outboard end. A rotor assembly is rotatably coupled to the fixed pylon and is operable to rotate between a generally vertical orientation in a vertical takeoff and landing mode and a generally horizontal orientation in a forward... Bell Helicopter Textron Inc

03/01/18 / #20180057160

Aircraft generating a triaxial dynamic thrust matrix

A tri-wing aircraft includes a fuselage having a longitudinally extending fuselage axis. Three wings extend generally radially outwardly from the fuselage axis and are circumferentially distributed generally uniformly about the fuselage at approximately 120-degree intervals. The wings have airfoil cross-sections including first and second surfaces having chordwise channels therebetween. A... Bell Helicopter Textron Inc

03/01/18 / #20180057161

Aircraft having dual rotor-to-wing conversion capabilities

A tail sitter aircraft includes a fuselage having a forward portion and an aft portion. The forward portion of the fuselage includes first and second rotor stations. A first rotor assembly is positioned proximate the first rotor station. A second rotor assembly is positioned proximate the second rotor station. A... Bell Helicopter Textron Inc

03/01/18 / #20180057162

Aircraft having rotor-to-wing conversion capabilities

A tail sitter aircraft includes a fuselage having a forward portion and an aft portion. The forward portion of the fuselage includes first and second rotor stations. A first rotor assembly is positioned proximate the first rotor station. A second rotor assembly is positioned proximate the second rotor station. A... Bell Helicopter Textron Inc

03/01/18 / #20180057178

Illuminated rope as an aircraft emergency egress aid

In some implementations, in an emergency in the vehicle, an emergency evacuation path is illuminated using the light emitted from the emergency evacuation rope where at least a portion of the emergency evacuation path extends to a location outside the vehicle. Egress of occupants along the emergency evacuation path is... Bell Helicopter Textron Inc

02/22/18 / #20180050792

Aircraft having radially extendable tailboom assembly

A tail sitter aircraft includes a fuselage having a forward portion, an aft portion and a longitudinally extending fuselage axis. A main lifting surface is supported by the forward portion of the fuselage. A propulsion system is operably associated with the main lifting surface and operable to provide thrust during... Bell Helicopter Textron Inc

02/22/18 / #20180050796

Braking systems for rotorcraft

In some embodiments, a rotorcraft includes a fuselage having a rotor hub assembly protruding therefrom that is rotatable relative thereto. A generator having an armature is mechanically coupled to the rotor hub assembly such that the armature is rotatable in response to rotation of the rotor hub assembly. A braking... Bell Helicopter Textron Inc

02/22/18 / #20180053358

Diagnostic method, system and device for a rotorcraft drive system

A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining rotational information associated with the component; receiving original data indicating the toothmesh frequency of the drive train; filtering the original data to remove energy above the toothmesh frequency; interpolating... Bell Helicopter Textron Inc

02/22/18 / #20180053359

Diagnostic method, system and device for a rotorcraft drive system

A method, system, and device for diagnosing an anomaly of a monitored component in a drive train, the method including obtaining original data based on samples of a vibration signal; converting the original data to an analytical signal having a real component and an imaginary component; determining complex magnitudes of... Bell Helicopter Textron Inc

02/22/18 / #20180051765

Liquid inertia vibration elimination system

A liquid inertia vibration elimination (LIVE) system having an upper end cap, a lower end cap, a spindle located between the upper end cap and the lower end cap, and an external tube connected between the upper end cap and the lower end cap.... Bell Helicopter Textron Inc

02/15/18 / #20180043984

Inflight connection of aircraft

An inflight connection system for aircraft having at least one wing with a wingtip includes, for each aircraft, a primary connector selectively extendable from the wingtip, an alignment connector selectively extendable from the wingtip and a male and female connector assembly disposed proximate the wingtip. The primary connectors extend a... Bell Helicopter Textron Inc

02/15/18 / #20180043986

Inlet duct selector for tiltrotor barrier filter

The present invention includes an air flow bypass for a tiltrotor engine comprising: a ram air inlet comprising bypass door(s) capable of at least partially or fully blocking a ram air flow through the ram air inlet; a barrier filter inlet positioned in a side, a bottom, and/or a top... Bell Helicopter Textron Inc

02/15/18 / #20180044009

Rotorcraft variable thrust cross-flow fan systems

In some embodiments, a rotorcraft includes a fuselage, a tailboom, a drive system and a variable thrust cross-flow fan system. The cross-flow fan system includes a cross-flow fan assembly that is mechanically coupled to a drive shaft and operable to rotate with the drive shaft about a longitudinal axis. The... Bell Helicopter Textron Inc

02/15/18 / #20180044010

Aircraft tail with cross-flow fan systems

In one aspect, there is provided an aircraft, including a fuselage having a longitudinal axis extending from a front portion through an aft portion; first and second tail members extending from the aft portion; a first cross-flow fan system rotatably mounted to the first tail member; and a second cross-flow... Bell Helicopter Textron Inc

02/15/18 / #20180044012

Aircraft with tilting cross-flow fan wings

An aspect provides an aircraft including a fuselage and a cross-flow fan system attached to the fuselage. The cross-flow fan system including a cross-flow fan assembly associated with a rotatable wing member having an exterior aerodynamic surface. In one aspect, there is provided an aircraft with a fuselage having a... Bell Helicopter Textron Inc

02/15/18 / #20180044013

Apparatus and directing thrust from tilting cross-flow fan wings on an aircraft

A variable thrust cross-flow fan system for an aircraft including a rotatable wing member having a first housing member; an actuator assembly operably coupled to the first housing member; and a variable thrust cross-flow fan assembly including a first and second driver plates having a plurality of blades rotatably mounted... Bell Helicopter Textron Inc

02/08/18 / #20180037318

Elastomeric bearing with tab for thermocouple and system for use

A laminated elastomeric bearing has layers of elastomeric material and layers of metal. A tab is located on a periphery of one of the layers of metal and protrudes from the bearing. A thermoelectric device is coupled to the tab, and heat generated within the bearing during use is conducted... Bell Helicopter Textron Inc

02/08/18 / #20180038439

Rotorcraft vibration suppression system in a four corner pylon mount configuration

The vibration suppression system includes a vibration isolator located in each corner in a four corner pylon mount structural assembly. The combination of four vibration isolators, two being forward of the transmission, and two being aft of the transmission, collectively are effective at isolating main rotor vertical shear, pitch moment,... Bell Helicopter Textron Inc

02/08/18 / #20180038474

Lubrication system with passive valve

A valve with supplemental media and a piston configured to open the valve when a first force is greater than a second force. The pressure of the supplemental media exerts a substantial portion of the first force. The valve also has a biasing member that changes volume as temperature changes... Bell Helicopter Textron Inc

02/01/18 / #20180029699

Rotor blade erosion protection systems

In some embodiments, a rotorcraft includes an engine, a rotor hub assembly mechanically coupled to the engine and a plurality of rotor blade assemblies rotatably mounted to the rotor hub assembly. Each of the rotor blade assemblies includes a rotor blade having a leading edge and an erosion shield system... Bell Helicopter Textron Inc

02/01/18 / #20180029700

Anti-drive mechanism for rise and fall rotating control systems

A rotor blade system includes a hub assembly pivotally attached to a rotor blade, a mast attached to the hub assembly, and a swashplate engaged with the mast, the swashplate includes a non-rotating ring and a rotating ring. The method to raise the swashplate includes using an anti-drive link system... Bell Helicopter Textron Inc

02/01/18 / #20180029701

Jam-tolerant rotary control motor for hydraulic actuator valve

According to one embodiment, a linear control motor includes a first permanent magnet, a coil, a shaft, a first non-magnetic material, and a joint coupled between the shaft and a spool operable to convert rotations of the shaft into axial movements of the spool. The first non-magnetic material is disposed... Bell Helicopter Textron Inc

Patent Packs
01/25/18 / #20180022462

Tip rib mounted pylon assemblies

A pedestal assembly receives a pylon assembly of a tiltrotor aircraft having an airframe including a fuselage and a wing. The pedestal assembly includes inboard and outboard tip ribs that extend above the wing and respectively define inboard and outboard slots. The pedestal assembly also includes inboard and outboard bearing... Bell Helicopter Textron Inc

01/25/18 / #20180025557

Adaptive algorithm-based engine health prediction

A system and algorithm-based method of determining engine health and assuring available propulsion power based on historical data reflecting the individual engine's unique performance “fingerprint.”... Bell Helicopter Textron Inc

01/18/18 / #20180017153

Flange-mounted ring gear for improved heat management

A ring gear includes a ring having one or more sets of inwardly facing teeth, a circumferential flange extending outward from the ring, and the flange is mounted between a first housing and a second housing. In addition, the flange protrudes into an ambient air outside the first housing and... Bell Helicopter Textron Inc

01/04/18 / #20180001579

Composite wing structure and methods of manufacture

In one aspect, there is a method of making a pre-cured laminate having a total number of plies in a mold, the mold having a periphery defined by a forward edge, an aft edge, and outboard ends. The method includes selecting a first plurality of resin impregnated plies that continuously... Bell Helicopter Textron Inc

01/04/18 / #20180001590

Composite wing structure and methods of manufacture

In one aspect, there is a method of making a composite skin for a tiltrotor aircraft including providing a first skin in a mold, the first skin having a periphery defined by a forward edge, an aft edge, and outboard ends; providing a plurality of honeycomb panels having an array... Bell Helicopter Textron Inc

01/04/18 / #20180001995

Rotorcraft fly-by-wire control laws

A flight control system includes a pilot control module configured to receive commands from a pilot, a flight control module operable to transmit an instruction to change at least one operating condition of an aircraft, and a flight control computer in communication between the flight control module and the pilot... Bell Helicopter Textron Inc

01/04/18 / #20180002009

Aircraft propulsion assembly

In some embodiments, a propulsion assembly for an aircraft includes a nacelle, at least one self-contained fuel tank disposed within the nacelle operable to contain a liquid fuel, an engine disposed within the nacelle operable to run on the liquid fuel, a drive system mechanically coupled to the engine and... Bell Helicopter Textron Inc

01/04/18 / #20180002011

Aircraft with selectively attachable passenger pod assembly

In some embodiments, an aircraft includes a flying frame having an airframe, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system wherein, the flying frame has a vertical takeoff and landing mode and a forward flight mode. A pod assembly is... Bell Helicopter Textron Inc

01/04/18 / #20180002012

Aircraft with independently controllable propulsion assemblies

In some embodiments, an aircraft includes a flying frame having an airframe, a distributed propulsion system attached to the airframe, a flight control system operably associated with the distributed propulsion system and a pod assembly selectively attachable to the flying frame. The distributed propulsion system includes a plurality of propulsion... Bell Helicopter Textron Inc

01/04/18 / #20180002013

Aircraft having manned and unmanned flight modes

In some embodiment, an aircraft includes an airframe, a propulsion system attached to the airframe and a flight control system operably associated with the propulsion system. A pod assembly is selectively attachable to the flying frame. The flying frame has a vertical takeoff and landing mode and a forward flight... Bell Helicopter Textron Inc

01/04/18 / #20180002014

Aircraft having autonomous and remote flight control capabilities

In some embodiments, an aircraft includes a flying frame having an airframe with first and second wing members having a plurality of pylons extending therebetween, a distributed propulsion system including a plurality of propulsion assemblies securably attached to the airframe and a flight control system operably associated with the distributed... Bell Helicopter Textron Inc

01/04/18 / #20180002015

Transportation selectively attachable pod assemblies

In some embodiments, a transportation method includes coupling a flying frame to a passenger pod assembly; lifting the passenger pod assembly into the air in a vertical takeoff and landing mode with the passenger pod assembly in a generally horizontal attitude; transitioning from the vertical takeoff and landing mode to... Bell Helicopter Textron Inc

01/04/18 / #20180002016

Passenger pod assembly transportation system

In some embodiments, a passenger pod assembly transportation system includes a transportation services provider computing system and a plurality of flying frame flight control systems, wherein the system is configured to receive, at the transportation services provider computing system, a request for transportation of a passenger pod assembly having a... Bell Helicopter Textron Inc

01/04/18 / #20180002026

Aircraft having a versatile propulsion system

An aircraft having a vertical takeoff and landing fight mode and a forward flight mode. The aircraft includes an airframe and a versatile propulsion system attached to the airframe. The versatile propulsion system includes a plurality of propulsion assemblies. A flight control system is operable to independently control the propulsion... Bell Helicopter Textron Inc

01/04/18 / #20180002027

Aircraft having a fault tolerant distributed propulsion system

In some embodiment, an aircraft includes a flying frame having an airframe, a distributed propulsion system attached to the airframe, the distributed propulsion system including a plurality of propulsion assemblies and a flight control system operably associated with the distributed propulsion system. The flying frame has a vertical takeoff and... Bell Helicopter Textron Inc

Patent Packs
12/28/17 / #20170370419

Helical drive coupling

A drive coupling has first and second coaxial end adapters. A first set of at least two coaxial helical elements has a first end of each element attached to the first end adapter, and a second end of each element is coupled to the second end adapter. At least one... Bell Helicopter Textron Inc

12/14/17 / #20170355448

Collective pitch integration with control power management system

A control system having at least a first control loop and a second control loop for determining the upper and lower cyclic limit increments due to the contribution of collective pitch in rotorcraft based at least on nacelle angle and airspeed. The aircraft is more robustly controlled by generating flight... Bell Helicopter Textron Inc

12/14/17 / #20170358153

Statistically equivalent level of safety modeling

Systems and methods are provided for statistically equivalent level of safety modeling. One method includes identifying sub-fleets within a fleet based upon usage profiles, determining a sub-fleet reliability value for each sub-fleet, determining a baseline fleet reliability for the fleet by combining the sub-fleet reliability values on a weighted basis,... Bell Helicopter Textron Inc

12/07/17 / #20170349273

Variable directional thrust for helicopter tail anti-torque system

The present invention includes an anti-torque assembly for a helicopter comprising a plurality of fixed blade pitch motors mounted on one or more pivots on the tail boom of the helicopter, wherein the plurality of fixed blade pitch motors on the one or more pivots are adapted to be oriented... Bell Helicopter Textron Inc

12/07/17 / #20170349274

Anti-torque control using matrix of fixed blade pitch motor modules

The present invention includes an a plurality of first variable speed motors arranged in a first matrix pattern and mounted on a tail boom of the helicopter; one or more fixed pitch blades attached to each of the plurality of first variable speed motors; and wherein a speed of one... Bell Helicopter Textron Inc

12/07/17 / #20170349276

Electric distributed propulsion anti-torque redundant power and control system

The present invention includes an electric distributed propulsion for anti-torque modules for a helicopter and methods of use comprising: two or more generators connected to a main gearbox transmission; at least a first and a second plurality of variable speed motors connected to one or more fixed pitch blades to... Bell Helicopter Textron Inc

11/23/17 / #20170334548

Structurally biased proprotor blade assembly

A tiltrotor aircraft includes a fuselage, a wing member extending from the fuselage, an engine disposed relative to the wing member and a proprotor mechanically coupled to the engine. The proprotor includes a plurality of proprotor blade assemblies each including a spar and a sheath extending spanwise along the spar... Bell Helicopter Textron Inc

11/23/17 / #20170334552

Aircraft load and vibration attenuation

In one embodiment, an apparatus comprises a particle damper for damping a component when the particle damper is attached to the component. The particle damper comprises a plurality of pockets configured to hold a plurality of particles, and the particle damper also comprises an attachment fitting for coupling the particle... Bell Helicopter Textron Inc

11/16/17 / #20170326808

System and constructing composite structures without tooling dams

The present invention includes methods of preparing a composite structure comprising: placing a first ply of a fibrous material with a curable material on a layup tool; adding one or more additional plies on the first ply, wherein each of the one or more additional plies has a perimeter that... Bell Helicopter Textron Inc

11/16/17 / #20170327205

Folding proprotor blade assembly having integral tang assembly

A tiltrotor aircraft includes a fuselage, a wing member extending from the fuselage, an engine disposed relative to the wing member, a rotor hub assembly mechanically coupled to the engine and a plurality of proprotor blade assemblies rotatably mounted to the rotor hub assembly and operable for beamwise folding relative... Bell Helicopter Textron Inc

11/09/17 / #20170320289

Composite core and making same

A composite core includes a plurality of tubes, each the plurality of tubes comprising a plurality of fibers disposed in a polymeric matrix. Adjacent tubes of the plurality of tubes are adhesively bonded to one another along sides of the adjacent tubes. A method of making a composite core includes... Bell Helicopter Textron Inc

11/09/17 / #20170320567

Rotor assembly with high lock-number blades

An aircraft rotor assembly has a central hub and a plurality of rotor blades coupled to the hub for rotation with the hub about an axis, each blade having a Lock number of approximately 5 or greater. A lead-lag pivot for each blade is formed by a flexure coupling the... Bell Helicopter Textron Inc

11/09/17 / #20170320586

Engine degredation management via multi-engine mechanical power control

A multi-engine power system is described that includes at least a first engine and a second engine configured to jointly provided mechanical power to the multi-engine power system. The multi-engine power system further includes a controller configured to estimate a deterioration factor of the first engine. The controller is further... Bell Helicopter Textron Inc

11/09/17 / #20170320590

Task-based health data monitoring of aircraft components

Systems, methods and non-transitory computer readable storage medium are provided for task-based health data monitoring relating to aircraft components of aircraft within an aircraft fleet. One method includes establishing a review item with a first data review state to create a review task relating to health data of an aircraft... Bell Helicopter Textron Inc

11/02/17 / #20170313434

Rotorcraft fuel system having enhanced crash resistance

A rotorcraft includes a fuselage having a fuel tank receiving assembly with a fuel tank positioned therein. The fuel tank including a plurality of interconnected fuel bags operable to contain liquid fuel. A network of straps is disposed about the fuel tank forming a restraint assembly. The network of straps... Bell Helicopter Textron Inc

11/02/17 / #20170314959

Center pedestal display

An aircraft system interface has a center pedestal and a touchscreen display carried by the center pedestal. The interface has one or more programs including instructions for displaying a virtual input device, instructions for detecting movement of an object on or near the touchscreen display, and instructions for rotating the... Bell Helicopter Textron Inc

11/02/17 / #20170316712

Aircraft procedural trainer interface

A control and simulation system (CSS) has a flight system configured to selectively provide flight mode of operation of an aircraft and a simulation system configured to selectively provide a simulation mode of operating the aircraft.... Bell Helicopter Textron Inc

10/26/17 / #20170305565

Tiltrotor aircraft having journal bearing mounted pylon assemblies

A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The... Bell Helicopter Textron Inc

10/26/17 / #20170305566

Tiltrotor aircraft having pillow block mounted pylon assemblies

A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The... Bell Helicopter Textron Inc

10/26/17 / #20170305567

Tiltrotor aircraft having spherical bearing mounted pylon assemblies

A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard pedestals are supported by the airframe and positioned above the wing. A pylon assembly is rotatably coupled between the inboard and outboard pedestals. The... Bell Helicopter Textron Inc

10/26/17 / #20170305568

Tiltrotor aircraft having tip rib mounted pylon assemblies

A propulsion system for a tiltrotor aircraft includes an engine supported by the airframe and a fixed gearbox operably coupled to the engine. Inboard and outboard tip ribs extend above the wing and define slots. Inboard and outboard bearing cartridges are received in respective slots. The inboard and outboard bearing... Bell Helicopter Textron Inc

10/26/17 / #20170307009

Increased capacity spherical lined bearings

A rotary system and method to control feathering movement of a rotor blade. The system having a yoke arm configured to rotate a rotor blade. A first bearing and a second bearing are utilized to secure the rotor blade to the yoke arm and are configured to restrict longitudinal and... Bell Helicopter Textron Inc








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