公开(公告)号：US11498673B2

公开(公告)日：2022-11-15

申请号：US16584240

申请日：2019-09-26

Applicant: Bell Textron Inc.

Inventor： Michael Raymond Hull ,  Daniel Duane Donley

IPC: B64C27/72 ,  H04B10/116 ,  B64C27/32 ,  H04B10/80 ,  B64C27/82

Abstract: Embodiments are directed to a rotor system for an aircraft comprising a gearbox configured to receive torque from a drive train, a mast having a first end and a second end, wherein the first end is attached to the gearbox and the mast configured to rotate in response to the torque from the drive train, a rotor hub attached to the second end of the mast, a first light transceiver mounted adjacent to the first end of the mast, wherein the first light transceiver is does not rotate relative to the mast, and a second light transceiver mounted adjacent to the second end of the mast, wherein the second light transceiver rotates with the mast.

公开(公告)号：US20220359901A1

公开(公告)日：2022-11-10

申请号：US17315328

申请日：2021-05-09

Applicant: Bell Textron Inc.

Inventor： Phalgun Madhusudan

IPC: H01M8/248

Abstract: A method of constructing a fuel cell system includes providing an open cell structure to form a first end plate, filling at least part of the open cell structure with a stiffening material, disposing a fuel cell stack between the first end plate and a second end plate, and compressing the fuel cell stack by moving the first end plate toward the second end plate. A fuel cell system includes a first end plate comprising an open cell structure, a second end plate, and a fuel cell stack compressed between the first end plate and the second end plate.

公开(公告)号：US20220355924A1

公开(公告)日：2022-11-10

申请号：US17307845

申请日：2021-05-04

Applicant: Bell Textron Inc.

Inventor： Thomas C. Parham, JR. ,  Frank Bradley Stamps ,  Jouyoung Jason Choi ,  Albert Gerard Brand ,  Michael Scott Seifert ,  Richard E. Rauber ,  John E. Brunken, JR.

IPC: B64C29/00 ,  B64C11/00 ,  B64C11/06 ,  B64C11/32

Abstract: A gimbaled rotor assembly for an aircraft. The gimbaled rotor assembly including a static mast; a spherical bearing comprising an inner component and an outer component pivotable relative to each other about a bearing focus, the inner component fixedly coupled to the static mast; a rotor hub rotatably coupled to the outer component, allowing for relative rotation of the rotor hub about a rotor axis and for pivoting together with the outer component about the bearing focus; and a primary hub spring coupling the outer component to the static mast and configured for opposing pivoting of the rotor hub about the bearing focus from a neutral position.

公开(公告)号：US20220352555A1

公开(公告)日：2022-11-03

申请号：US17246704

申请日：2021-05-02

Applicant: Bell Textron Inc.

Inventor： Phalgun Madhusudan

IPC: H01M10/0587 ,  H01M50/107 ,  H01M10/04 ,  H01M50/147

Abstract: A battery cell assembly, including a cell having a first electrode and a second electrode rolled together to form a cylindrical shape; a first end cap disposed on a first end of the cell and contacting the first electrode; a second end cap disposed on a second end of the cell and contacting the second electrode; and a jacket configured to couple the first end cap and the second end cap to the cell, the jacket made from a non-conductive material.

公开(公告)号：US20220352539A1

公开(公告)日：2022-11-03

申请号：US17246702

申请日：2021-05-02

Applicant: Bell Textron Inc.

Inventor： Phalgun Madhusudan

IPC: H01M10/04 ,  H01M50/166

Abstract: A battery cell assembly, including a rolled cell formed from a first electrode and a second electrode rolled together about a longitudinal axis. The rolled cell includes a primary section in which the first electrode and the second electrode overlap in a radial direction from the longitudinal axis, and a first extension end extending from a first longitudinal end of the primary section and formed from a first edge section of the first electrode. The first edge section includes a first folded portion folded to contact an adjacent portion of the first edge section. The battery cell assembly further includes a first end cap coupled to the rolled cell and contacting the first folded portion.

公开(公告)号：US11485484B2

公开(公告)日：2022-11-01

申请号：US17186484

申请日：2021-02-26

Applicant: Bell Textron Inc.

Inventor： Mark Wiinikka ,  Scott Hemmen ,  Nathan P. Green ,  James Blake

IPC: B64C27/00 ,  B64D27/26 ,  F16F13/24 ,  F16F13/08 ,  F16F13/10

Abstract: A strut assembly for a vibration isolation device is disclosed, comprising a piston spindle; a first elastomeric member and a second elastomeric member bonded to the piston spindle and in contact with an upper housing and a lower housing, respectively; a first strut support and a second strut support attached to or integral with the upper housing and the lower housing, respectively; a first strut spindle and the second strut support configured to be placed in the first strut support and the second strut support, respectively; and one or more removable struts configured to be engaged to the first strut spindle and to the second strut spindle, wherein at least one of the first or second strut spindles is removable such that the one or more struts can be replaced without breaking a bonding of the first elastomeric member, the second elastomeric member, or both.

公开(公告)号：US11472544B2

公开(公告)日：2022-10-18

申请号：US16808836

申请日：2020-03-04

Applicant: Bell Textron Inc.

Inventor： William Kyle Heironimus ,  Stephen Yibum Chung

IPC: B64C27/68 ,  B64C29/00 ,  B64D27/24 ,  B64D33/08 ,  H02K9/06 ,  H02K5/22 ,  H02K7/108 ,  H02K7/116 ,  H02K9/193

Abstract: One embodiment is an electric drive system for an aircraft comprising a plurality of redundant motors, wherein power generated by the plurality of motors is used to drive a rotor system comprising a rotor shaft having a plurality of rotor blades connected thereto; a gear box associated with the plurality of redundant motors; a collective actuator for controlling a collective pitch of the rotor blades connected to the rotor shaft; and at least one structural element for retaining the redundant motors, the gear box, and the collective actuator together as a single integrated unit.

公开(公告)号：US11472533B2

公开(公告)日：2022-10-18

申请号：US16732106

申请日：2019-12-31

Applicant: Bell Textron Inc.

Inventor： Elizabeth Feeley ,  Karl Schroeder

IPC: B64C11/00 ,  B64C27/20 ,  B64C27/52 ,  B64C29/00

Abstract: A duct for a ducted-rotor aircraft includes a hub, a duct ring, and a plurality of stators that extend outward from the hub. The hub may be configured to support a motor. The duct ring defines a trailing edge. The duct ring is coupled to each of the plurality of stators such that all or substantially all of each of the plurality of stators is located aft of the trailing edge of the duct ring.

公开(公告)号：US11453491B2

公开(公告)日：2022-09-27

申请号：US17173860

申请日：2021-02-11

Applicant: Bell Textron Inc.

Inventor： Elizabeth Feeley ,  Karl H. Schroeder ,  George Matthew Thompson ,  Michael Mark Attaway ,  Joseph Richard Carpenter, Jr.

IPC: B64C11/00 ,  B64C27/82 ,  B64C29/00 ,  F01D5/02 ,  F04D29/54 ,  F01D9/04

Abstract: One embodiment is a rotor system comprising a duct ring; a hub disposed centrally to the duct ring; first and second stators each connected between the duct ring and the hub; first and second control vanes rotatably connected to the first and second stators, respectively; a structural hoop having a first end connected to the first control vane and a second end connected to the second control vane, the structural hoop for translating rotation of the first control vane about a vane axis to the second control vane; and a mechanism for restricting at least one of forward-aft movement and side-to-side movement of the structural hoop relative to the duct ring.

公开(公告)号：US20220297830A1

公开(公告)日：2022-09-22

申请号：US17306303

申请日：2021-05-03

Applicant: Bell Textron Inc.

Inventor： Kevin KNOTT ,  Vitthal Vishnuthreeth ARAKERI ,  Alvin JONES ,  Scott David POSTER ,  Steven Paul PAPE ,  Mark Adam WIINIKKA

IPC: B64C27/605 ,  B64C27/35 ,  B64C27/82

Abstract: An exemplary rotorcraft lockout system includes a main rotor lockout comprising a base operable to be attached to a bottom surface of a fuselage and a first and a second tension arm operable to be connected to the base and a main rotor hub, and a tail rotor lockout including a clamp operable to connect to a horizontal stabilizer, a rotor arm connector operable to connect to a tail rotor hub, and a tail rotor tension arm operable to interconnect the clamp and the rotor arm connector in tension.