公开(公告)号：US11970284B2

公开(公告)日：2024-04-30

申请号：US16804137

申请日：2020-02-28

Applicant: Textron Innovations Inc.

Inventor： Kip Gregory Campbell

IPC: B64D43/02 ,  G01C23/00

CPC classification number: B64D43/02 ,  G01C23/00

Abstract: An exemplary method to determine an airspeed and an angle of attack of a propeller powered vehicle includes determining the power delivered to the propeller, the air density, a propeller power coefficient, an advance ratio for the propeller, and the airspeed using the advance ratio and determining the angle of attack using the airspeed.

公开(公告)号：US20240132206A1

公开(公告)日：2024-04-25

申请号：US18049181

申请日：2022-10-23

Applicant: Textron Innovations Inc.

Inventor： Douglas Robert Mueller ,  Jason DeWitt McPeak ,  Mark Alan Przybyla

IPC: B64C29/00 ,  B64D35/00 ,  F16H57/04

CPC classification number: B64C29/0033 ,  B64D35/00 ,  F16H57/0442

Abstract: A drive system for a rotorcraft includes first and second gearbox assemblies and a lubrication assembly. The lubrication assembly includes first and second lubrication systems and a valve connected between the first and second lubrication systems such that when the valve is in a first position, a test mode of operation of the lubrication assembly is enabled and when the valve is in a second position, a normal mode of operation of the lubrication assembly is enabled.
The lubrication assembly also includes a valve control unit operable to instruct the valve to selectively move between the first position and the second position.

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：US20240101250A1

公开(公告)日：2024-03-28

申请号：US18307343

申请日：2023-04-26

Applicant: TEXTRON INNOVATIONS INC.

Inventor： Carlos Alexander Fenny ,  Jouyoung Jason Choi

IPC: B64C27/08 ,  B64C39/06 ,  B64D27/26 ,  G05D1/02 ,  G05D1/08

CPC classification number: B64C27/08 ,  B64C39/062 ,  B64D27/26 ,  G05D1/0202 ,  G05D1/0808 ,  B64D2027/262

Abstract: An aircraft comprises a fuselage, a plurality of support structures coupled to the fuselage, and a first propeller and a second propeller connected to a motor and symmetrically distributed along the plurality of support structures, the first propeller configured to create a first thrust having a first horizontal force vector and the second propeller configured to create a second thrust having a second horizontal force vector. A summation of the first and second horizontal force vectors is substantially zero when the first thrust is substantially equal to the second thrust, and a first rotational axis of the first propeller and a second rotational axis of the second propeller are substantially coplanar with a vertical axis disposed between the first and second propeller. A movement of the aircraft is controlled by selectively increasing or decreasing a thrust of either the first propeller or the second propeller.

公开(公告)号：US11939077B2

公开(公告)日：2024-03-26

申请号：US17686347

申请日：2022-03-03

Applicant: Textron Innovations Inc.

Inventor： Alan Hisashi Steinert ,  Thomas Dewey Parsons ,  Troy Cyril Schank

IPC: B64D35/02 ,  B64D27/20 ,  F02C7/36 ,  F02K3/06 ,  F02K3/075 ,  F04D25/16 ,  B64C29/00

CPC classification number: B64D35/02 ,  B64D27/20 ,  F02C7/36 ,  F02K3/06 ,  F02K3/075 ,  F04D25/166 ,  B64C29/0033 ,  F05D2220/323 ,  F05D2240/12 ,  F05D2260/407 ,  F05D2260/408

Abstract: Systems and methods include providing an aircraft with a fuselage and a convertible engine disposed within the fuselage. The convertible engine is operable as a turbofan engine in a thrust mode and a turboshaft engine in a shaft power mode. The convertible engine includes a housing, an engine core having a low pressure turbine shaft, and a bypass fan system. The bypass fan system includes a bypass fan having a fan clutch. The fan clutch selectively couples at least a portion of the bypass fan to the low pressure turbine shaft when the convertible engine is operated in the thrust mode and decouples at least a portion of the bypass fan from the low pressure turbine shaft when the convertible engine is operated in the shaft power mode.

公开(公告)号：US11933814B2

公开(公告)日：2024-03-19

申请号：US17562501

申请日：2021-12-27

Applicant: Textron Innovations Inc.

Inventor： Kip Gregory Campbell

IPC: G01P5/02 ,  G01C23/00 ,  G05D1/00 ,  G05D1/08

CPC classification number: G01P5/02 ,  G01C23/00 ,  G05D1/0808

Abstract: According to one implementation of the present disclosure, a method for determining airspeed for an unpowered vehicle is disclosed. The method includes: determining first and second body-fixed load factor measurements; determining a body Z-force coefficient based on an angle-of-attack parameter; and determining an airspeed value based on the second body-fixed load factor measurement and the body Z-force coefficient.

公开(公告)号：US11914362B2

公开(公告)日：2024-02-27

申请号：US18311662

申请日：2023-05-03

Applicant: Textron Innovations Inc.

Inventor： Maurice D. Griffin ,  Aaron M. Hitchcock

IPC: G05D1/00 ,  G08G5/00 ,  G05D1/10 ,  G06V20/13 ,  G06T7/292 ,  G06V20/17

CPC classification number: G05D1/0011 ,  G05D1/0094 ,  G05D1/102 ,  G06T7/292 ,  G06V20/13 ,  G06V20/17 ,  G08G5/0047

Abstract: One embodiment is a navigation system for an aircraft including a positioning system to generate information related to a position of the aircraft, a group of cameras mounted to a body of the aircraft, each camera of the group of cameras to simultaneously capture images of a portion of an environment that surrounds the aircraft, and a processing component coupled to the positioning system and the group of cameras, the processing component to determine a current position of the aircraft based on the information related to the position of the aircraft and the images.

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：US11900821B2

公开(公告)日：2024-02-13

申请号：US17684088

申请日：2022-03-01

Applicant: Textron Innovations Inc.

Inventor： Grant Mark Bristow ,  Matthew David Holvey ,  Naveed Ahmed Siddiqui

IPC: G08G5/00 ,  G05D1/10 ,  G07C5/02 ,  H04W24/08

CPC classification number: G08G5/0069 ,  G05D1/101 ,  G07C5/02 ,  G08G5/0013 ,  H04W24/08

Abstract: An method for controlling an autonomous vehicle fleet, including obtaining, by a fleet controller, from a master schedule, a mission for a vehicle of a fleet of autonomous vehicles, where the mission is associated with a mission entry of the master schedule, generating vehicle commands according to mission parameters associated with the mission, maintaining a persistent connection with the vehicle, sending the vehicle commands to the vehicle using the connection, the vehicle commands causing the vehicle to execute the mission under control of the fleet controller, and monitoring operation of the vehicle during performance of the mission.

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.