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公开(公告)号：US11618557B2
公开(公告)日：2023-04-04
申请号：US17004919
申请日：2020-08-27
Applicant: Bell Textron Inc.
Inventor： Bryan Kenneth Baskin
Abstract: An elastomeric bearing assembly has a centrifugal force bearing axially captured relative to a sliding interface. The sliding interface has one or more low friction regions and one or more high friction regions. One or more piezo actuators are configured to force one or more corresponding high friction regions against the centrifugal force bearing when actuated. The sliding interface may have a circular shape, wherein the one or more low friction regions and the one or more high friction regions are alternating concentric segments of the sliding interface. The one or more high friction regions are recessed on the sliding interface relative to the one or more low friction regions.
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公开(公告)号：US20230095015A1
公开(公告)日：2023-03-30
申请号：US17484852
申请日：2021-09-24
Applicant: Bell Textron Inc.
Inventor： Timothy Brian Carr , Joshua Robert O'Neil
Abstract: An aircraft, such as a rotorcraft, may have (an) area(s) designated to house (a) fuel cell(s) and (an) aircraft structure(s) that may translate, during a drop impact of the aircraft, into the area(s) designated to house the fuel cell(s). (A) shaped fuel cell(s) may be provided and deployed therein, in accordance with the present systems and methods. Each respective shaped fuel cell may define (a) respective through-void(s) defined through the respective shaped fuel cell, and/or (an) respective edge cavit(y)(ies) defined along an edge of the shaped fuel cell, wherein the respective through-void(s) and/or the respective edge cavit(y)(ies) correspond to the respective aircraft structure(s) that may translate, during the drop impact of the aircraft, into the area(s) of the aircraft designated to house the respective fuel cell(s) to receive and accommodate the respective structure(s) during the drop impact.
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公开(公告)号：US11613375B2
公开(公告)日：2023-03-28
申请号：US16414402
申请日：2019-05-16
Applicant: Bell Textron Inc.
Inventor： Kirk L. Groninga , Daniel B. Robertson
Abstract: An exemplary dual motor input includes a common shaft for coupling to a member to be rotationally driven, a first motor rotationally coupled to a first drive shaft, the first drive shaft coupled to the common shaft, and a second motor rotationally coupled to a second drive shaft, the second drive shaft coupled to the common shaft.
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公开(公告)号：US11613355B2
公开(公告)日：2023-03-28
申请号：US16920017
申请日：2020-07-02
Applicant: Bell Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson , Andrew James Zahasky
IPC: B64C39/06 , B64D27/24 , B64C29/02 , B64C11/28 , B64C27/50 , B64C3/16 , B64C3/10 , B64C27/08 , B64C29/00 , B64C27/12 , B64D31/00 , B64C1/06 , B64C39/02 , B64C39/00 , B64C1/00 , B64D27/02
Abstract: An aircraft includes a closed wing, a fuselage at least partially disposed within a perimeter of the closed wing, and one or more spokes coupling the closed wing to the fuselage. A source of electric power is disposed within or attached to the closed wing, fuselage or one or more spokes. A plurality of electric motors are disposed within or attached to the one or more spokes in a distributed configuration. Each electric motor is connected to the source of electric power. A propeller is operably connected to each of the electric motors and proximate to a leading edge of the one or more spokes. One or more processors are communicably coupled to the plurality of electric motors. A longitudinal axis of the fuselage is substantially vertical in vertical takeoff and landing and stationary flight, and substantially in a direction of a forward flight in a forward flight mode.
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公开(公告)号：US20230061193A1
公开(公告)日：2023-03-02
申请号：US17410519
申请日：2021-08-24
Applicant: Bell Textron Inc.
Inventor： Grant Michael Beall , Michael Raymond Hull
IPC: H02K7/08 , F16C35/063
Abstract: An electric motor adapted to apply torque to a drive shaft rotatable about an axis, the electric motor includes a stator, a rotor adapted to rotate relative to the stator, a primary bearing interoperably coupled to the stator and adapted to provide bearing support between the stator and the rotor, an auxiliary bearing interoperably coupled to the drive shaft, an annular shear adapter connected to the primary bearing and the auxiliary bearing, and a shear pin interoperably coupled to the primary bearing via the annular shear adapter and configured to break responsive to torque between the annular shear adapter and the drive shaft exceeding a predetermined torque threshold.
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Patent Agency Ranking
公开(公告)号：US11577825B2
公开(公告)日：2023-02-14
申请号：US16862257
申请日：2020-04-29
Applicant: Bell Textron Inc.
Inventor： Frank Bradley Stamps , David Heverly
Abstract: A vibration attenuator for a rotor of an aircraft has a housing adapted for rotation with the rotor about an axis. A first ring is rotatably carried within the housing on a first bearing, a first weight being coupled to the first ring for rotation therewith relative to the housing about the axis. A second ring is rotatably carried by the first ring on a second bearing, a second weight being coupled to the second ring for rotation therewith relative to the housing and to the first ring. A first motor is configured for rotating the first ring relative to the housing, and a second motor is configured for rotating the second ring relative to the housing and to the first ring. The first and second motors are operated to rotate the weights within the housing and position the weights relative to each other for attenuating vibrations.
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公开(公告)号：US11577815B2
公开(公告)日：2023-02-14
申请号：US16777084
申请日：2020-01-30
Applicant: Bell Textron Inc.
Inventor： Tjepke Heeringa
Abstract: One embodiment includes a structural panel for an aerospace vehicle, including a single sheet of material, the material having a first raised pattern on a first side, and a second raised pattern on a reverse side, wherein a repeating portion of the first raised pattern is substantially identical in size and shape to a repeating portion of the second raised pattern, and is rotated at an angle θ to the first raised pattern.
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公开(公告)号：US11566701B1
公开(公告)日：2023-01-31
申请号：US17575756
申请日：2022-01-14
Applicant: Bell Textron Inc.
Inventor： Trenton A. Hamm , Gregory A. Spruce
Abstract: A propped cantilever carrier is described that can be used in planetary gear systems. The carrier can comprise cantilevered arms extending outward from a central hub. At the end of each cantilever a post can extend downward that is configured to receive bearings and gears. A plate can comprise a hole for each post in the carrier. When the plate is coupled to the carrier it can hold the bearings and gears in place and provide added strength to the carrier. The strength benefits are large compared to the light weight of the carrier (with plate) apparatus.
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公开(公告)号：US11554864B2
公开(公告)日：2023-01-17
申请号：US16832173
申请日：2020-03-27
Applicant: Bell Textron Inc.
Inventor： Amarjit Olenchery Kizhakkepat , Andrew Paul Haldeman , Gary Miller , Diana Tinlin
Abstract: One embodiment described herein is a damper for a rotor system, the damper comprising a cylindrical housing having a hollow interior; a piston disposed within the hollow interior and extending along a central axis of the housing; a first attachment member disposed on a first end of the damper and connected to the housing; a second attachment member disposed on a second end of the damper and connected to the piston; and a conductive cover wrapped around a portion of an exterior surface of the housing between the first attachment member and the second attachment member.
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公开(公告)号：US11554859B2
公开(公告)日：2023-01-17
申请号：US16808818
申请日：2020-03-04
Applicant: Bell Textron Inc.
Inventor： William Kyle Heironimus , Stephen Yibum Chung
Abstract: One embodiment is an electric drive system for an aircraft including a motor, a gear box associated with the motor, and a cooling fan for drawing air into the unit across an electronic component to cool the electronic component and for expelling air into an oil cooler for cooling oil contained therein. The electric drive system further includes an oil distribution system for distributing oil cooled by the oil cooler to at least one motor and at least one gearbox, the distributed oil being used to cool the motor and the gearbox, a reservoir for collecting the distributed oil after it has been used to cool the motor and the gearbox, and at least one structural element for retaining the motor, gearbox, the cooling fan, the oil distribution system, and the reservoir together as a unit.
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