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公开(公告)号：US20200298970A1
公开(公告)日：2020-09-24
申请号：US16358268
申请日：2019-03-19
Applicant: Bell Helicopter Textron Inc.
Inventor： Aaron Alexander ACEE , Andrew Paul HALDEMAN
Abstract: An exemplary anti-torque system for a helicopter includes two or more electric fans rotatably mounted on a tail boom, the two or more electric fans rotatable about a longitudinal axis of the tail boom.
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公开(公告)号：US20200290732A1
公开(公告)日：2020-09-17
申请号：US16354421
申请日：2019-03-15
Applicant: Bell Helicopter Textron Inc.
Inventor： Andrew Paul HALDEMAN , Gary MILLER
Abstract: A tension-torsion strap, for example for a rotor aircraft, including a continuous length of carbon fiber tow arranged in multiple loops to form an elongated member extending between opposing ends and a flexible cover encasing the carbon fiber tow.
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公开(公告)号：US20200130823A1
公开(公告)日：2020-04-30
申请号：US16173064
申请日：2018-10-29
Applicant: Bell Helicopter Textron Inc.
Abstract: An exemplary rotorcraft includes a power train with an engine coupled to a gearbox, a main rotor blade having a mast coupled to the power train, a control input linkage in communication between a pilot input device and the main rotor blade configured to communicate a control input force from the pilot input device to the main rotor blade, and a counterweight system in connection with the control input linkage and the power train to apply a centrifugal force to the control input linkage.
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公开(公告)号：US20190288493A1
公开(公告)日：2019-09-19
申请号：US15923201
申请日：2018-03-16
Applicant: Bell Helicopter Textron Inc.
Inventor： Chad JARRETT , Andrew Paul HALDEMAN , Zachary DAILEY
Abstract: A standpipe assembly for a rotorcraft includes a slip ring positioned within the mast of the rotorcraft. The slip ring includes a stator rotationally connected to a rotor. A flexible coupling is connected to the stator and a standpipe tube is connected to the flexible coupling. The flexible coupling is capable of angular, axial, and torsional displacement.
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