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公开(公告)号：US20200070996A1
公开(公告)日：2020-03-05
申请号：US16120676
申请日：2018-09-04
Applicant: Bell Helicopter Textron Inc.
Inventor： Levi C. Hefner , Frank B. Stamps , Alan C. Ewing , Jaret F. Burgess , Carey W. Cannon
Abstract: A pusher rotorcraft is provided in one example embodiment and may include at least one engine in mechanical communication with a drop-down gearbox; a driveshaft in mechanical communication with the drop-down gearbox, a main rotor gearbox, and a tail system gearbox; a main rotor system in mechanical communication with the main rotor gearbox; an anti-torque system in mechanical communication with the tail system gearbox; and a pusher propeller system in mechanical communication with the tail system gearbox.
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252.发明授权公开(公告)号：US10577079B2
公开(公告)日：2020-03-03
申请号：US15845928
申请日：2017-12-18
Applicant: Bell Helicopter Textron Inc.
Inventor： Jared Mark Paulson , Tyler Wayne Baldwin , Kyle Thomas Cravener
Abstract: A folding rotor blade assembly for a tiltrotor aircraft comprising a rotor blade pivotally connected to a yoke with dual concentric blade bolts having a common central axis providing a pivotal axis inboard of an outboard shear bearing. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.
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公开(公告)号：US10574066B2
公开(公告)日：2020-02-25
申请号：US15830875
申请日：2017-12-04
Applicant: Bell Helicopter Textron Inc.
Inventor： Gary S. Froman
IPC: G01R27/26 , H02J7/00 , G01R31/02 , B64D45/02 , H02H5/10 , B64D43/00 , G01R31/00 , H02J7/34 , H02H1/00 , H02H3/04 , H05F1/00
Abstract: In one embodiment, an aircraft electronics system includes a hardware processor, a charge collection circuit to collect charge; a switching circuit controlled by the hardware processor to discharge the charge collected on the charge collection circuit through a bonding circuit formed from a chassis and a bonding surface; and a voltage measurement circuit to measure a voltage difference between measurement terminals across the chassis and the bonding surface.
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254.发明授权公开(公告)号：US10569866B2
公开(公告)日：2020-02-25
申请号：US16024986
申请日：2018-07-02
Applicant: Bell Helicopter Textron Inc.
Inventor： Kyle Thomas Cravener , Paul Sherrill
Abstract: The aircraft includes a rotor. The rotor includes a plurality of rotor blades. The aircraft further includes a non-rotating aircraft component. A proximity sensor is disposed with at least one of the non-rotating aircraft component and the rotor blades. A flight control computer is electrically coupled to the proximity sensor.
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公开(公告)号：US20200055586A1
公开(公告)日：2020-02-20
申请号：US16105215
申请日：2018-08-20
Applicant: Bell Helicopter Textron Inc.
Inventor： Christopher Edward Foskey , Michael Christopher Burnett
Abstract: Embodiments are directed to an aerodynamic spinner fairing having a sidewall and one or more airflow intakes in the sidewall. The airflow intakes are closed during a first phase of flight and open during a second phase of flight. The first phase of flight may be an airplane mode for a tiltrotor aircraft, and the second phase of flight may be a helicopter mode for the tiltrotor aircraft. The airflow intakes may comprise an opening in the sidewall, and a door that is configured to move between a first position covering the opening and a second position exposing the opening to external airflow. An actuator coupled to the door may operate to move the door between the first position and the second position. One or more guide vanes within the aerodynamic spinner fairing may be configured to direct air received via the airflow intakes to provide convection cooling.
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Patent Agency Ranking
公开(公告)号：US10562617B2
公开(公告)日：2020-02-18
申请号：US15350073
申请日：2016-11-13
Applicant: Bell Helicopter Textron, Inc.
Inventor： Jouyoung Jason Choi , David Heverly , Michael Seifert , Michael Smith , Frank Brad Stamps , Thomas Parham, Jr. , Amarjit Olenchery Kizhakkepat
Abstract: 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 weight assembly can include a mechanical interconnecting mechanism so that each weight assembly receives feedback regarding the position and movement of one or more other weight assemblies. Each weight can be associated with a spring that urges the weight towards a neutral position. Rotation of the mast can cause the weight to orbit about the mast and self-excite such that the weight acts against the urging of the spring towards an attenuating position.
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公开(公告)号：US20200047879A1
公开(公告)日：2020-02-13
申请号：US16056610
申请日：2018-08-07
Applicant: Bell Helicopter Textron Inc.
IPC: B64C27/473 , B29C70/30 , B29C70/54 , B32B1/08 , B32B5/12 , B32B5/02 , B32B5/26 , B32B37/18 , B32B38/18
Abstract: Embodiments are directed to systems and methods for creating a tubular composite structure. In one embodiment, a device comprises multiple layers of cured composite fabric bonded together to form a tubular composite structure, wherein alternating groups of the multiple layers comprise on-axis fabric and off-axis fabric. The tubular composite structure may form a spar for an aerodynamic component. The composite fabric may comprise one or more of carbon, fiberglass, or other composite materials, or a combination of materials. One or more stacks of the fabric wrap completely around the tubular composite structure, and other stacks of fabric may not wrap completely around the tubular composite structure.
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公开(公告)号：US10556680B2
公开(公告)日：2020-02-11
申请号：US15593458
申请日：2017-05-12
Applicant: Bell Helicopter Textron Inc.
Inventor： Carlos Alexander Fenny , Rohn Lee Olson
IPC: B64C29/02 , B64D27/24 , B64C39/06 , B64C11/28 , B64C29/00 , B64C3/10 , B64C27/08 , B64C27/12 , B64D31/00 , B64C1/06 , B64C39/02 , B64C27/50 , B64C1/00 , B64D27/02
Abstract: The present invention includes a distributed propulsion system for a craft that comprises a frame, a plurality of hydraulic or electric motors disposed within or attached to the frame in a distributed configuration; a propeller operably connected to each of the hydraulic or electric motors, a source of hydraulic or electric power disposed within or attached to the frame and coupled to each of the disposed within or attached to the frame, wherein the source of hydraulic or electric power provides sufficient energy density for the craft to attain and maintain operations of the craft, a controller coupled to each of the hydraulic or electric motors, and one or more processors communicably coupled to each controller that control an operation and speed of the plurality of hydraulic or electric motors.
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公开(公告)号：US10549854B2
公开(公告)日：2020-02-04
申请号：US15082839
申请日：2016-03-28
Applicant: Bell Helicopter Textron Inc.
Inventor： Jeremy Robert Chavez , Steven W. Kihara
Abstract: An aircraft has a wing and at least a portion of a hoist system disposed within the wing. A method of hoisting an item includes disposing at least a portion of a hoist system within a wing of an aircraft and extending a cable of the hoist system through an access hole of an exterior wall of the wing.
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公开(公告)号：US10543916B2
公开(公告)日：2020-01-28
申请号：US15603019
申请日：2017-05-23
Applicant: BELL HELICOPTER TEXTRON INC.
Inventor： Ken Shundo , Mithat Yuce , Frank B. Stamps
Abstract: 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 about a pitch-change axis. The second device is configured to allow rotational movement of the rotor blade solely about the pitch-change axis. The method includes rotating rotor assembly about a first plane of rotation, while retaining a relatively stiff out-of-plane rotation and a relatively soft in-plane rotation during flight.
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