公开(公告)号：US20200347656A1

公开(公告)日：2020-11-05

申请号：US16401475

申请日：2019-05-02

Applicant: Bell Textron Inc.

Inventor： Kirk Landon Groninga ,  Daniel Bryan Robertson

IPC: E05D15/58 ,  B64C1/14 ,  B60J5/04

Abstract: A versatile door system for an aircraft includes forward and aft door assemblies. The forward door assembly includes a forward hingeable door hingeably coupled to the airframe proximate a forward location of an aircraft opening and a forward slidable door slidably coupled to the forward hingeable door. The aft door assembly includes an aft hingeable door hingeably coupled to the airframe proximate an aft location of the aircraft opening and an aft slidable door slidably coupled to the aft hingeable door. In a closed configuration, the forward hingeable door, the forward slidable door, the aft hingeable door and the aft slidable door are securably disposed within the aircraft opening. In operation, the forward hingeable door, the forward slidable door, the aft hingeable door and the aft slidable door are individually operable to collectively provide access to a selectable width of the aircraft opening.

公开(公告)号：US20200340894A1

公开(公告)日：2020-10-29

申请号：US16923413

申请日：2020-07-08

Applicant: Bell Textron Inc.

Inventor： Wei-Yueh Lee ,  Michael Burnett ,  Michael Dearman

IPC: G01N3/08 ,  B29C70/56 ,  G01M5/00 ,  G01N3/02 ,  G01N3/04 ,  B29C70/32 ,  G06F30/23 ,  B29C70/30 ,  B29C70/54 ,  G01N3/22

Abstract: A method of offset load testing a tubular composite specimen with two pairs of aligned holes and having at least one defect, the method comprising: providing a testing apparatus having a pair of arms including a fixed arm and a mobile arm; securing the pair of arms using a fastener assembly in each of the two pairs of aligned holes; and moving the mobile arm to impart an offset load force to the tubular specimen. One aspect includes a method of offset load testing comprising: providing a testing apparatus having a pair of arms including a fixed arm and a mobile arm; providing a tubular composite specimen with a top portion and a bottom portion; securing the pair of arms to the top and bottom portions of the tubular composite specimen; and moving the mobile arm to impart an offset load force to the tubular composite specimen.

公开(公告)号：US20200317331A1

公开(公告)日：2020-10-08

申请号：US16886000

申请日：2020-05-28

Applicant: Bell Textron Inc.

Inventor： Carlos Fenny ,  Thomas Dewey Parsons, JR. ,  Erik John Oltheten

IPC: B64C27/82 ,  B64C27/04 ,  G05D1/08

Abstract: The present invention includes an a plurality of first variable speed motors 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 or more of the plurality of first variable speed motors is varied to provide an anti-torque thrust.

公开(公告)号：US20200317329A1

公开(公告)日：2020-10-08

申请号：US16372732

申请日：2019-04-02

Applicant: Bell Textron Inc.

Inventor： Mark Adam Wiinikka ,  John McCullough ,  Russell Steven Cole ,  William Russell Cleary, JR. ,  Zachary Edwin Dailey

IPC: B64C27/48 ,  B29C70/54

Abstract: An embodiment rotorcraft main rotor system, including a yoke, a rotor blade, and a grip assembly attaching the rotor blade to the yoke. The grip assembly includes a grip body formed from a contiguous laminated composite and has a substantially constant thickness, where the grip body has an upper extension, a lower extension and a connecting portion connected between an inboard end of the upper extension and an inboard end of the lower extension. An inside surface of the upper extension faces, and is substantially parallel to, an inside surface of the lower extension, and the upper extension has first features and the lower extension has second features that are aligned with the first features, where the first features and second features each include at least one of an edge contour, attachment holes, or first protective elements.

公开(公告)号：USD896730S1

公开(公告)日：2020-09-22

申请号：US29707474

申请日：2019-09-27

Applicant: Bell Textron Inc.

Designer： James Everett Kooiman ,  Michael Edwin Rinehart ,  Lynn Francis Eschete ,  Jason Paul Winter ,  Derek Ray Eddins ,  Steven Allen Robedeau, Jr. ,  Clegg Benjamin Brian Smith ,  Andrew Thomas Carter ,  Aaron Alexander Acee ,  Andrew Paul Haldeman

公开(公告)号：US20200290737A1

公开(公告)日：2020-09-17

申请号：US16743203

申请日：2020-01-15

Applicant: Bell Textron Inc.

Inventor： Steven Ray Ivans ,  Jason Paul Hurst ,  Brent Chadwick Ross ,  John Richard McCullough ,  Paul K. Oldroyd

IPC: B64C29/02 ,  G05D1/00 ,  B64C39/02 ,  B64D1/08 ,  B64C39/06 ,  B64D25/12

Abstract: An aircraft for capturing drones includes an airframe having a drone channel with first and second wings extending outboard thereof. A two-dimensional distributed thrust array includes a plurality of propulsion assemblies coupled to each of the first and second wings such that the rotor disc of each propulsion assembly is outboard of the drone channel. A flight control system is coupled to the airframe and is operable to independently control each of the propulsion assemblies. A mesh bag is coupled to the drone channel forming a drone capture net. The aircraft is configured to convert between thrust-borne lift in a VTOL orientation and wing-borne lift in a biplane orientation. The aircraft is also configured to overtake a drone during flight in the biplane orientation such that the drone passes through the drone channel into the mesh bag, thereby capturing the drone in the drone capture net.

公开(公告)号：US10773794B2

公开(公告)日：2020-09-15

申请号：US16244512

申请日：2019-01-10

Applicant: Bell Textron Inc.

Inventor： Colton Gilliland ,  Tyson Henry

IPC: B64C11/50 ,  F16H1/28

Abstract: A dynamic rotor-phasing unit can phase rotors in-flight for dynamic rotor tuning and in an idle state for aircraft storage. The input and output shafts can be clocked (e.g., rotated) from 0 degrees apart to in excess of 360 degrees apart or from 0 degrees apart to 140 degrees apart. Such rotation can minimize the footprint of an aircraft for stowing purposes, as the rotor blades can be folded to fit within a smaller area without disconnecting the drive system. Additionally, the unit can allow tiltrotor blades to be clocked during flight, which can allow the live-tuning of the aircraft's rotor dynamics. A fail-safe rotary actuator can rotate a stationary planet carrier to clock the input shaft and the output shaft. Alternatively, an actuator can position a slider housing to clock the input shaft and the output shaft.

公开(公告)号：US20200255132A1

公开(公告)日：2020-08-13

申请号：US16862257

申请日：2020-04-29

Applicant: Bell Textron Inc.

Inventor： Frank Bradley Stamps ,  David Heverly

IPC: B64C27/00 ,  B64C29/00 ,  F16F15/14 ,  H02K7/06

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.

公开(公告)号：US20200248760A1

公开(公告)日：2020-08-06

申请号：US16274520

申请日：2019-02-13

Applicant: Bell Textron Inc.

Inventor： Eric Stephen Olson ,  Mark Alan Przybyla ,  David R. Bockmiller

IPC: F16D41/07 ,  B64C27/12 ,  B64D35/08 ,  F16D1/10

Abstract: A selectable clutch assembly for a multimode powertrain of a rotorcraft. The selectable clutch assembly includes a freewheeling unit having input and output sides. The freewheeling unit has a driving mode wherein torque applied to the input side is transferred to the output side and an over running mode wherein torque applied to the output side is not transferred to the input side. A bypass assembly is coupled to and rotatable with the output side of the freewheeling unit and is actuatable between engaged and disengaged positions with the input side of the freewheeling unit. In the disengaged position, the freewheeling unit is operable in the driving and the over running modes such that the selectable clutch assembly is configured for unidirectional torque transfer. In the engaged position, the over running mode of the freewheeling unit is disabled such that the selectable clutch assembly is configured for bidirectional torque transfer.

公开(公告)号：US20200217206A1

公开(公告)日：2020-07-09

申请号：US16822716

申请日：2020-03-18

Applicant: Bell Textron Inc.

Inventor： Jeffrey Nissen ,  Jared M. Paulson ,  Thomas S. Chiang

IPC: F01D5/14 ,  B22F5/04 ,  B64C11/26 ,  B33Y80/00 ,  B33Y10/00 ,  B29C64/386 ,  B64F5/40 ,  B64C27/473 ,  B64F5/10 ,  B22F7/06 ,  B33Y50/00 ,  B22F3/105 ,  F03B3/12 ,  G06F30/17 ,  G06F30/23 ,  B33Y50/02 ,  B23K26/342 ,  B22F3/00 ,  B23K15/00 ,  B23P6/00 ,  B29C73/04 ,  F01D5/00

Abstract: An airfoil member having a root end, a tip end, a leading edge, and a trailing edge, the airfoil member including an upper skin; a lower skin; and a support network having a plurality of interconnected support members in a lattice arrangement and/or a reticulated arrangement, the support network being configured to provide tailored characteristics of the airfoil member. Also provided are methods and systems for repairing an airfoil member.