公开(公告)号：US11975825B2

公开(公告)日：2024-05-07

申请号：US17101688

申请日：2020-11-23

Applicant: Bell Textron Inc.

Inventor： Nathaniel Ross Bernklau

IPC: B64C27/14 ,  B64C1/06 ,  B64D27/02 ,  F16C3/02 ,  F16D3/06 ,  F16D1/10

CPC classification number: B64C27/14 ,  B64C1/061 ,  B64D27/02 ,  F16C3/02 ,  F16C3/023 ,  F16D3/06 ,  F16C2223/30 ,  F16C2326/43 ,  F16D2001/103 ,  F16D2200/0052 ,  F16D2250/0046 ,  Y10T403/7032

Abstract: A spline assembly, including a spline shaft having a first end and a second end, wherein the first end is splined to engage a spline receiver of a primary drive system and includes a substantially spherical alignment head, wherein the spherical alignment head comprises an expendable hydrocarbon material that is caused to melt by operation of the primary drive system over time.

公开(公告)号：US11975817B2

公开(公告)日：2024-05-07

申请号：US17175327

申请日：2021-02-12

Applicant: Bell Textron Inc.

Inventor： John R. Wittmaak, Jr. ,  Russell C. Peters ,  Nathaniel G. Lundie

IPC: G05D1/00 ,  B64C13/16 ,  B64C29/02 ,  B64F5/60

CPC classification number: B64C13/16 ,  B64C29/02 ,  B64F5/60

Abstract: A method for reducing form drag on a tailsitter aircraft during at least one of takeoff or landing includes vertically taking off from the ground in a tailsitter orientation. The method also includes determining an actual pitch of the tail sitter aircraft in the tailsitter orientation. The method also includes determining a difference between the actual pitch and a predetermined pitch. The method also includes adjusting a heading of the tailsitter aircraft based on the difference to minimize a pitch angle to reduce the form drag on the tailsitter aircraft.

公开(公告)号：US20240138292A1

公开(公告)日：2024-05-02

申请号：US18498555

申请日：2023-10-31

Applicant: TEXTRON INC.

Inventor： Jamie M. CLEMENTS ,  Robert Johns ,  Fahad HARITH

IPC: A01D34/37 ,  A01D34/44 ,  B60L50/60

CPC classification number: A01D34/37 ,  A01D34/44 ,  B60L50/66

Abstract: An all-electric turf vehicle, wherein the vehicle comprises a chassis; a plurality of ground engaging wheels operatively connected to the chassis, wherein at least one of the ground engaging wheels is a steerable wheel; a plurality of electric wheel drive and tractions motors, wherein each electric wheel drive and tractions motor is operatively connected to a respective one of the plurality of ground engaging wheels and is structured and operable to deliver motive power to the respective ground engaging wheel; a plurality of turf cutting units; and an operator station. The operator station comprises a seat in which a vehicle operator can be seated; and a control and support arm pivotally movable so that the control and support arm can be positioned to not obstruct a line of sight of the vehicle operator to an outer edge of an outermost of the plurality of cutting units.

公开(公告)号：US11972692B2

公开(公告)日：2024-04-30

申请号：US17154602

申请日：2021-01-21

Applicant: Bell Textron Inc.

Inventor： John R. Wittmaak, Jr. ,  Joshua A. Edler ,  Alan H. Steinert ,  Joshua A Duckett

IPC: G08G5/00 ,  B64C39/02 ,  B64D45/00 ,  G07C5/08 ,  G08G5/04 ,  B64U101/00

CPC classification number: G08G5/045 ,  B64C39/024 ,  B64D45/00 ,  G07C5/0816 ,  G08G5/003 ,  B64D2045/0085 ,  B64U2101/00

Abstract: Methods and systems are described for increasing the safety of unmanned vehicles. Failure rates of components can be combined and adjusted if necessary given sensor data or statistical or historical data that impacts failure rates. The failure rates of components can be combined to give an overall failure or success rate for a vehicle and can be compared to an accepted failure or success rate in connection with a hazard. Hazards with heightened safety requirements can be avoided by a contingency maneuver if the unmanned vehicle's failure or success rate is not acceptable.

公开(公告)号：US11965461B2

公开(公告)日：2024-04-23

申请号：US16846377

申请日：2020-04-12

Applicant: Bell Textron Inc.

Inventor： Daniel John Simpson ,  Tim Nobel ,  Mitchell Jay Griffith ,  Henry Rodger Bredenkamp, Jr. ,  Dave H. Loe ,  Paul Park

IPC: F02C7/057 ,  B64D29/00 ,  B64D33/02 ,  F02C7/05

CPC classification number: F02C7/057 ,  B64D29/00 ,  B64D33/02 ,  F02C7/05 ,  B64D2033/0246

Abstract: A rotatable nacelle includes an engine inlet configured to receive air and an inlet air management system (IAMS). The IAMS includes a primary inlet configured to selectively allow air to flow into a duct associated with the engine air inlet via the primary inlet and a secondary inlet configured to selectively allow air to flow into the duct associated with the engine air inlet via the secondary inlet. The secondary inlet is configured to receive an air filter.

公开(公告)号：US11912403B2

公开(公告)日：2024-02-27

申请号：US17306610

申请日：2021-05-03

Applicant: Bell Textron Inc.

Inventor： Kevin Knott ,  Vitthal Vishnuthreeth Arakeri

IPC: B64C27/605 ,  F01D7/00

CPC classification number: B64C27/605 ,  F01D7/00 ,  F05D2220/90

Abstract: An exemplary pitch link centering tool includes a rod having a longitudinal axis, a front face, a rear face, a first rod end and a second rod end, the first rod end having a first aperture with a first rotational axis, the second rod end having a second aperture with a second rotational axis, a first connector coupled to the first rod end, the first connector having a first slot extending in a first radial direction relative to the longitudinal axis and a second connector coupled to the second rod end, the second connector having a second slot extending in a second radial direction relative to the longitudinal axis different from the first radial direction.

公开(公告)号：US11891169B2

公开(公告)日：2024-02-06

申请号：US16563732

申请日：2019-09-06

Applicant: Bell Textron Inc.

Inventor： Paul Branson Sherrill ,  Robert Alan Self

IPC: B64C27/473 ,  F01D5/14 ,  B64F5/10 ,  B29K705/08 ,  B29C70/48 ,  B29L31/08

CPC classification number: B64C27/473 ,  B64F5/10 ,  F01D5/147 ,  B29C70/48 ,  B29K2705/08 ,  B29L2031/082 ,  B64C2027/4733 ,  F05D2230/50 ,  F05D2300/2263 ,  F05D2300/44

Abstract: In an implementation, a rotor blade (alternatively referred to herein as “blade”) for a helicopter or other aircraft may include an outer layer. The outer layer may define a cavity. The outer layer may at least partially correspond to an airfoil, e.g., a wing. One or more inserts may be included within the cavity and be encompassed thereby. The first insert may have a density of at least 0.6 pounds per cubic inch.

公开(公告)号：US11866169B2

公开(公告)日：2024-01-09

申请号：US16988375

申请日：2020-08-07

Applicant: Bell Textron Inc.

Inventor： Joseph Dean Rainville

IPC: B64C7/02 ,  B64C39/02 ,  H01M8/0267 ,  H01M8/04014 ,  B64U50/19

CPC classification number: B64C7/02 ,  B64C39/024 ,  H01M8/0267 ,  H01M8/04014 ,  B64U50/19 ,  H01M2250/20

Abstract: An unmanned aerial vehicle (UAV) has an air-cooled fuel cell, an air channel comprising a forward facing opening for receiving ram air and connected to the air-cooled fuel cell, and a passive ram air filtration system (PRAFS) configured to filter particulate matter from ram air received into the air channel via the opening.

公开(公告)号：US20230415448A1

公开(公告)日：2023-12-28

申请号：US18464414

申请日：2023-09-11

Applicant: BELL TEXTRON INC.

Inventor： Suvankar Mishra ,  Robert Mark Chris ,  Michael D. Ishmael ,  Ronald J. Turner

IPC: B32B3/12 ,  B32B37/06 ,  B32B41/00 ,  B32B27/38 ,  B32B27/28 ,  B32B7/04 ,  B32B5/02 ,  B32B3/06 ,  B32B27/16 ,  B32B27/12 ,  B32B3/20 ,  B32B37/14

CPC classification number: B32B3/12 ,  B32B37/06 ,  B32B41/00 ,  B32B27/38 ,  B32B27/285 ,  B32B7/04 ,  B32B27/281 ,  B32B5/02 ,  B32B3/06 ,  B32B27/28 ,  B32B27/16 ,  B32B27/12 ,  B32B3/20 ,  B32B37/146 ,  B32B2309/68 ,  B32B2309/02 ,  B32B2605/18 ,  B32B2307/544 ,  B32B2603/00 ,  B32B2307/712 ,  B32B2260/023 ,  B32B2605/12 ,  B32B2307/552 ,  B32B2439/00 ,  B32B2307/546 ,  B32B2607/00 ,  B32B2605/00 ,  B32B2307/558 ,  B32B2307/54 ,  B32B2250/40 ,  B32B2439/62 ,  B32B2307/732 ,  B32B2260/046 ,  B32B2305/024

Abstract: In accordance with one embodiment of the present disclosure, a method for manufacturing a honeycomb core sandwich panel includes placing a thermoset facesheet in contact with a thermoplastic honeycomb core without using a separate adhesive and attaching the thermoset facesheet to the thermoplastic honeycomb core by using a curing profile comprising a temperature that is lower than a gel point temperature of the thermoset facesheet and higher than a softening point temperature of the thermoplastic honeycomb core.

公开(公告)号：US11814163B2

公开(公告)日：2023-11-14

申请号：US17148307

申请日：2021-01-13

Applicant: Bell Textron Inc.

Inventor： Jonathan Andrew Knoll ,  George Matthew Thompson ,  Charles Hubert Speller ,  Grant Michael Beall

IPC: B64C29/00 ,  B64D27/24 ,  B64D29/02 ,  B64D35/02 ,  B64D35/04 ,  H02K7/108 ,  F16D41/00 ,  H02K7/116

CPC classification number: B64C29/0033 ,  B64D27/24 ,  B64D29/02 ,  B64D35/02 ,  B64D35/04 ,  H02K7/108 ,  H02K7/116 ,  F16D41/00

Abstract: A rotor system for an aircraft includes an open rotor assembly comprising a plurality of rotor blades connected to a rotor mast via a yoke, wherein the rotor assembly is tiltable between a first position corresponding to an airplane mode and a second position corresponding to a helicopter mode; and a drive system for providing rotational energy to the open rotor assembly via the rotor mast, the drive system comprising at least one electric motor for providing rotational energy to a drive shaft and a gearbox connected to the drive shaft for receiving rotational energy from the at least one electric motor via the drive shaft and providing rotational energy to the rotor mast via a rotor shaft; wherein the drive system is rotatable relative to the wing about a tilt axis and the rotor shaft is coaxial with the drive shaft.