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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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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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

10/19/17 / #20170297679

Interconnect drive system

An interconnect drive system for an aircraft has a driveline and clutch control system. The driveline comprises a shaft for each propulsion assembly, each shaft for transferring torque to and from the associated propulsion assembly, and a clutch operably coupling the shafts and configured for selective engagement. The clutch is... Bell Helicopter Textron Inc

10/19/17 / #20170297695

System and assisting in rotor speed control

A method of assisting in rotor speed control in a rotorcraft can include measuring a rotor speed with a sensor; detecting a droop in the rotor speed beyond a lower droop limit; and commanding a decrease in collective in response to the rotor speed drooping beyond the lower droop limit.... Bell Helicopter Textron Inc

10/12/17 / #20170291406

Joining structural members using foam

One aspect of a process of forming an aircraft component includes bonding a first end of a honeycomb structure to a surface of an aircraft skin member, the honeycomb structure including multiple connected cells. Foam is sprayed on a second end of the honeycomb structure opposite the first end. The... Bell Helicopter Textron Inc

10/12/17 / #20170291698

Cable cutter system

Some examples of a cable cutting system include a first cutting apparatus that includes a recess to receive a cable. The system includes a second cutting apparatus separate from and attached to the first cutting apparatus. The second cutting apparatus includes multiple cutting surfaces arranged to cut the cable received... Bell Helicopter Textron Inc

10/12/17 / #20170291701

Fiber orientation to allow for automated ply placement with composite rotor yokes

An apparatus comprising a soft in plane rotor yoke comprising two longitudinal side portions connected together via two outboard portions, wherein the outboard portions comprise a plurality of first layers formed of a first composite fabric material having a plurality of first fibers oriented in a first direction, and a... Bell Helicopter Textron Inc

10/12/17 / #20170291726

Aircraft component regime recognition

A system has a flight measurement sensor configured to provide a flight measurement of an aircraft, a regime engine configured to identify a plurality of flight regimes that the aircraft operated in during a period of time, a component engine configured to assign a first flight regime of the plurality... Bell Helicopter Textron Inc

10/05/17 / #20170284535

Gearbox lubrication system

According to one embodiment, a rotorcraft includes a body, a rotor blade, a drive system that can be operated to rotate the rotor blade, and an emergency valve control unit. The drive system contains a first gearbox assembly, a second gearbox assembly, a first lubrication system that can deliver lubricant... Bell Helicopter Textron Inc

09/14/17 / #20170259521

Large cell core stiffened panels with solid inserts

A core stiffened panel includes first and second skins having a large cell core and a solid insert joined therebetween. The solid insert has a side surface at least a portion of which is adjacent to the large cell core and may be joined to the large cell core. The... Bell Helicopter Textron Inc

09/14/17 / #20170259904

Adhesively joining airframe members at solid insert

An airframe assembly for an aircraft. The airframe assembly includes a first airframe member having a first skin, a second skin, a large cell core joined between the first and second skins and a solid insert having a side surface. The solid insert is joined between the first and second... Bell Helicopter Textron Inc

09/14/17 / #20170259905

Mechanically joining airframe members at solid insert

An airframe assembly for an aircraft includes a first airframe member having first and second skins with a large cell core and a solid insert joined therebetween. The solid insert has a side surface at least a portion of which is adjacent to the large cell core. The first airframe... Bell Helicopter Textron Inc

09/14/17 / #20170259913

Gimbaled tail rotor hub with spherical elastomeric centrifugal force bearing for blade retention and pitch change articulation

A rotor hub comprises a gimbal assembly and an elastomeric centrifugal force bearing. The gimbal assembly is configured to transfer rotational movement of a mast to the rotor hub and to enable the rotor hub to flap relative to the mast. The elastomeric centrifugal force bearing is configured to withstand... Bell Helicopter Textron Inc

09/14/17 / #20170259916

Soft in-plane and stiff out-of-plane rotor system

A rotor assembly includes a yoke operably associated with a rotor blade. The yoke includes a first device and a second device that attach the rotor blade to the yoke. The first device is configured to allow transverse movement of the rotor blade about a chord axis and rotational movement... Bell Helicopter Textron Inc

09/14/17 / #20170259911

Rotor hub vibration attenuator

A vibration attenuation system for attenuating vibrations in a mast of an aircraft includes a weight attached to the mast but free to orbit about the mast. The weight can be comprised of one or more weight assemblies. Embodiments can include a single weight, or plural weight assemblies wherein each... Bell Helicopter Textron Inc

09/07/17 / #20170253327

Adjustable blade-to-hub lead-lag damper attachment

An aircraft includes a rotor blade and a rotor hub system. The rotor hub system includes a lead-lag damper having a rod end and being operably associated with the rotor blade; a blade adapter having a first arm and an opposing second arm; a pin carried by the blade adapter... Bell Helicopter Textron Inc

08/24/17 / #20170240265

Driveshaft thermal barrier

In one embodiment, an apparatus comprises a thermal barrier configured to surround at least a portion of a driveshaft and to protect the driveshaft from heat. The thermal barrier comprises an inner wall forming a cavity in which the driveshaft lies, an outer wall enclosing the inner wall, and a... Bell Helicopter Textron Inc

08/24/17 / #20170241474

System and rotating rotor blades from a distance

In one aspect, there is provided a rotary blade movement system including a retaining member configured to receive a rotor blade, a graspable arm, and a coupling mechanism operable to removably couple the retaining member to the graspable arm. The rotor blade movement system is configured to enable a user... Bell Helicopter Textron Inc

Patent Packs
08/17/17 / #20170234421

System and supporting a planetary carrier within a gearbox

An apparatus and system for supporting a planetary carrier within an aircraft gearbox includes a retainer for engaging a rotor mast and for supporting the planetary carrier.... Bell Helicopter Textron Inc

08/10/17 / #20170225366

Heating tool

In one aspect, a heating tool includes a heat source having a discharge outlet; and a manifold including an intake conduit configured to releasably connect to the discharge outlet of the heat source and a chamber coupled to the intake conduit having a ventilation path. The chamber includes a diverging... Bell Helicopter Textron Inc

08/10/17 / #20170225409

Method of forming pressure pad or other flexible element for use during cure of composite materials

A method of manufacturing a flexible element configured for pressing against composite material received on a mold surface of a mold during cure, including placing a porous material over the mold surface, forming a sealed enclosure containing the mold surface and the porous material, infusing a curable liquid material such... Bell Helicopter Textron Inc

08/10/17 / #20170225765

Spar for a composite wing structure

In one aspect, there is provided a spar member for an aircraft wing including a support beam having an interior surface, an exterior surface, and opposing ends configured for an aircraft wing, the interior surface and exterior surface disposed between the opposing ends; and a first spar flange extending generally... Bell Helicopter Textron Inc

08/10/17 / #20170225766

Composite rib assembly

In one aspect, there is a rib assembly for an aircraft wing including a rib web having a top and a bottom, the rib web includes a first laminate, a second laminate, and a honeycomb panel having an array of large cells disposed between the first laminate and the second... Bell Helicopter Textron Inc

08/10/17 / #20170225767

Engagement member for splicing a spar assembly

In one aspect, there is an engagement member for splicing a spar assembly in an aircraft wing including a joining portion having a first attachment for connecting to a first spar and a second attachment surface for connecting to a second spar; and a rib post extending from the joining... Bell Helicopter Textron Inc

08/10/17 / #20170225769

Composite wing structure and methods of manufacture

A method of manufacturing a tiltrotor wing structure including providing a spar mold having a plurality of bores extending from an exterior surface of the mold to an interior surface of the mold, the plurality of bores corresponding to a plurality of primary coordination holes in a spar member, the... Bell Helicopter Textron Inc

08/10/17 / #20170225770

Joint member for a composite wing structure

In one aspect, there is a joint member for a composite having a laminate layer including a support member having a first side and a second side; a first flange extending laterally from the first side and having an attachment surface for attachment to a structure; and a second flange... Bell Helicopter Textron Inc

08/10/17 / #20170225780

Maintaining drive system alignment in aircraft

A support assembly for coupling a first gearbox to an airframe of an aircraft. The first gearbox has an output gear operable to transfer torque to an input gear of a second gearbox via a common shaft rotatable about a longitudinal axis. The support assembly includes a fixed joint proximate... Bell Helicopter Textron Inc

08/03/17 / #20170217109

Systems and methods of constructing composite assemblies

A method of constructing a cured composite assembly includes positioning a composite assembly within a bonding tool, wherein the composite assembly comprises an uncured composite spar and a skin and performing a curing cycle on the composite assembly to simultaneously cure the uncured composite spar and bond the skin to... Bell Helicopter Textron Inc

08/03/17 / #20170217594

Sleeved bolt assemblies for aircraft engine mount assemblies

A rotorcraft, such as a tiltrotor aircraft having helicopter and airplane modes, includes an airframe, an engine and an engine mount assembly for coupling the engine to the airframe. The engine includes an engine lug forming an aperture. The engine mount assembly includes a mount having an aperture substantially aligned... Bell Helicopter Textron Inc

08/03/17 / #20170217595

Engine mount assemblies for aircraft

An engine mount assembly for coupling an engine to an airframe includes a torsion bar, a lateral movement control assembly and a vertical movement control assembly. The torsion bar has a torsional stiffness and is coupled between the engine and the airframe such that torsional movement of the engine causes... Bell Helicopter Textron Inc

08/03/17 / #20170217596

Clamped splines for aircraft engine mount assemblies

An engine mount assembly for coupling an engine to an airframe. The engine mount assembly includes a torsion bar coupled between the engine and the airframe. The torsion bar includes an external spline. The engine mount assembly also includes a bell crank having a clamp forming an internal spline with... Bell Helicopter Textron Inc

08/03/17 / #20170217597

Beam springs for aircraft engine mount assemblies

An engine mount assembly for coupling an engine to an airframe. The engine mount assembly includes a torsion bar coupled to the engine and a lateral movement control assembly coupled between the torsion bar and the airframe. The lateral movement control assembly includes a spring having a lateral stiffness. The... Bell Helicopter Textron Inc

08/03/17 / #20170217598

Tapered sockets for aircraft engine mount assemblies

An engine mount assembly for coupling an engine to an airframe. The engine mount assembly includes a torsion bar coupled between the engine and the airframe. The torsion bar has upper and lower tapered bosses. Upper and lower arm assemblies couple the engine to the torsion bar. Each arm assembly... Bell Helicopter Textron Inc

Patent Packs
07/20/17 / #20170203854

Multi-tiered conditional analysis engine

A regime recognition system for an aircraft has a regime engine configured to identify a sub-regime performance of the aircraft only after having identified a top tier or top level regime performance that can include the sub-regime performance.... Bell Helicopter Textron Inc

06/29/17 / #20170182730

Composite core with non-traditional geometries

A composite core with non-traditional geometries includes multiple elongate tubes arranged in a two-dimensional array. Each tube is made of a composite material. Each tube includes multiple curved sides. Each curved side inwardly curves toward a longitudinal axis passing through a geometric center of the tube to form a valley... Bell Helicopter Textron Inc

06/22/17 / #20170174363

Aircraft component regime recognition

According to one embodiment, a method of assessing health of two or more components includes receiving, from an aircraft, a plurality of flight measurements, the aircraft comprising a first component and a second component. At least two flight regimes that the aircraft operated in at the same time are identified.... Bell Helicopter Textron Inc

06/08/17 / #20170158306

Fuselage to wing attachment

According to one embodiment, an aircraft features a fuselage, a wing member, and two fuselage beam. The fuselage features a first plurality of structural supports, a second plurality of structural supports, a first opening disposed between the first plurality of structural supports, and a second opening disposed between the second... Bell Helicopter Textron Inc

06/08/17 / #20170158323

Tiltrotor with inboard engines

According to one embodiment, an aircraft features a fuselage, a wing coupled to the fuselage, and a first rotor system. The first rotor system includes a first proprotor system and a first engine. The first proprotor system is coupled proximate to a first wing tip of the wing and is... Bell Helicopter Textron Inc

05/25/17 / #20170144746

Tiltrotor aircraft having rotary and non rotary flight modes

A mechanism for transitioning a tiltrotor aircraft between rotary and non rotary flight modes. The mechanism includes a gimbal lock positioned about a mast that is operable to selectively enable and disable a gimballing degree of freedom of a rotor assembly relative to the mast. A blade stop assembly, positioned... Bell Helicopter Textron Inc

05/25/17 / #20170145919

Passive internal ice protection systems for engine inlets

A system includes an engine cover covering a side-facing rotorcraft engine and having an opening and an ice protection member mounted on the engine cover between the opening and the engine, an area of the ice protection member smaller than an area of the opening. The ice protection member is... Bell Helicopter Textron Inc

05/25/17 / #20170149402

Situation responsive audio system

A method of controlling an audio system includes generating a situation response model for a situation parameter, determining a situation parameter value, and at least one of (1) providing an audio system output as a function of the situation response model and the situation parameter value and (2) receiving an... Bell Helicopter Textron Inc

05/18/17 / #20170137113

Rotorcraft fly-by-wire control laws

According to one embodiment, a flight control system includes a pilot control assembly and a flight control computer. The pilot control assembly can receive commands from a pilot. The flight control computer can receive, from the pilot control assembly, a pilot command to change a first flight characteristic, wherein changing... Bell Helicopter Textron Inc

05/18/17 / #20170137122

Maintaining drive system alignment in tiltrotor aircraft

A drive system for a tiltrotor aircraft includes a first gearbox rotatably mounted to the airframe and rotatable about a longitudinal axis to operate the tiltrotor aircraft between helicopter and airplane modes. A second gearbox extends generally normal to the longitudinal axis of the first gearbox. A common shaft, rotatable... Bell Helicopter Textron Inc

05/11/17 / #20170129587

Strapped windshield assembly for rotorcraft

This description relates to a strapped windshield assembly for a rotorcraft. In some implementations, the rotorcraft includes an airframe, a windshield, and a plurality of independent straps connected to the airframe and the windshield, the straps operative to move independently with respect to one another. The independent movement of the... Bell Helicopter Textron Inc

05/04/17 / #20170121029

Tilt-rotor over-torque protection from asymmetric gust

A system includes a first mast torque transfer system, a second mast torque transfer system coupled to the first mast torque transfer system, and a torque limiting system. The torque limiting system includes a first sensor configured to determine a torque of the first mast torque transfer system, a second... Bell Helicopter Textron Inc

04/27/17 / #20170116684

Identification tags for tracking manufacturing of aircraft parts

According to one embodiment, an aircraft component is manufactured from a plurality of separate materials comprising a first material. The first material is physically associated with a tracking device comprising a first storage medium featuring line-of-sight accessible information and a second storage medium featuring non-line-of-sight accessible information. The line-of-sight accessible... Bell Helicopter Textron Inc

04/06/17 / #20170096219

Autorotative enhancement system

Embodiments refer generally to systems and methods for providing autorotative enhancement for helicopters using an autorotative assist unit coupled to the transmission of the helicopter. Methods of utilizing an autorotative assist unit as well as retrofitting an autorotative assist unit to an existing helicopter are also disclosed. By employing an... Bell Helicopter Textron Inc

03/30/17 / #20170088257

Unified control of multiple active systems for helicopter vibration suppression

A vibration control system for a rotorcraft includes at least one of an integrated actuator and an intermediate actuator associated with a first source of vibration, a sensor configured to sense vibration from the first source of vibration, a dedicated actuator configured for association with a fuselage, and a controller... Bell Helicopter Textron Inc

03/30/17 / #20170088286

Super capacitor based emergency lighting system

An emergency lighting system (ELS) for an aircraft has a capacitor, at least one of an onboard power system and a ground power unit configured to charge the capacitor, and a light emitting diode (LED) selectively powered by the capacitor.... Bell Helicopter Textron Inc

03/30/17 / #20170089449

Gear and lubricating a gear

In some embodiments, a gear includes a toothed portion that has a plurality of teeth, an inner wall that defines a cavity, and a lubricant feed aperture. The lubricant feed aperture extends from the inner wall portion to the toothed portion. The lubricant feed aperture can deliver lubricant from the... Bell Helicopter Textron Inc

03/30/17 / #20170089532

Hybrid emergency exit lighting system

An emergency lighting system (ELS) for an aircraft has a capacitor, a light emitting diode (LED) selectively powered by the capacitor, and at least one of a photoluminescent sign and a photoluminescent panel configured to receive light emitted from the LED.... Bell Helicopter Textron Inc

03/16/17 / #20170072597

Modular tooling for manufacturing multi-cavity composite structures

A method of manufacturing a monolithic component having internal wall(s), including separately placing uncured composite material on a mold parts, placing the mold parts on a support plate with a portion of the uncured composite material extending between and in contact with the adjacent mold parts, interconnecting the adjacent mold... Bell Helicopter Textron Inc

03/16/17 / #20170072598

Modular mandrel for monolithic composite fuselage

A method of manufacturing a self-supporting, monolithic fuselage body, including engaging peripheral mandrel sections around at least one central mandrel section, placing uncured composite material on the mold surface, curing the composite material on the mold surface, and sliding the central mandrel section(s) out of engagement with the peripheral mandrel... Bell Helicopter Textron Inc

03/16/17 / #20170073067

Composite rotor system using two race track style cantilevered yokes

A hub system comprises at least one yoke, at least one shear bearing, and at least one mast adapter. The at least one mast adapter is configured to support the at least one yoke and the at least one shear bearing, and the at least one yoke has a flapping... Bell Helicopter Textron Inc

03/16/17 / #20170075639

Ballistic-resistant cockpit display

According to one embodiment, a cockpit display system includes display tiles that together form a single, continuous display screen, a content generation unit configured to generate content instructions that instruct the display screen to display content comprising a plurality of information portions, a display feedback unit, and a content prioritization... Bell Helicopter Textron Inc








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