公开(公告)号：US20210394896A1

公开(公告)日：2021-12-23

申请号：US16905657

申请日：2020-06-18

Applicant: Bell Textron Inc.

Inventor： Chen KUANG ,  Marc BUSTAMANTE ,  Thuvaragan SENTHILNATHAN ,  Marc OUELLET ,  Guillaume BIRON

IPC: B64C27/82 ,  B64D27/24 ,  B64D31/04 ,  B64D43/00 ,  B64D31/06 ,  B64C27/06 ,  H02P5/50 ,  H02P9/06 ,  H02P9/08

Abstract: An architecture for an electric distributed propulsion system includes one or more generators connected to a gearbox, a first and a second plurality of motors connected to the one or more generators, each motor of the plurality of motors connected to a blade to provide thrust, a first and a second power bus electrically connected between the one or more generators and the first and the second plurality of motors, each power bus independent of the other power bus, a first and a second controller independently connected to each of the first and second plurality of motors, each of the first and second controllers serving as a primary and a backup controller to provide redundant control to both the first and the second plurality of motors, and dual channels in communication between pilot input sensors and the first and the second controllers, each channel of the dual channels independent of the other channels, and the dual channels including an additional channel to provide redundant communication to the first and second controllers.

公开(公告)号：US20210384850A1

公开(公告)日：2021-12-09

申请号：US16891971

申请日：2020-06-03

Applicant: Bell Textron Inc.

Inventor： Marc BUSTAMANTE ,  Chen KUANG ,  Thuvaragan SENTHILNATHAN ,  Marc OUELLET ,  Guillaume BIRON

IPC: H02P5/48 ,  B64D31/06 ,  B64D27/02 ,  B64C27/82 ,  B64C27/78 ,  B64C27/64

Abstract: An exemplary distributed propulsion system with thermal management includes two or more rotors individually controlled by associated motors and an input control connected to the associated motors to demand the associated motors produce a demanded thrust, wherein a motor power output of each motor of the associated motors is independently controlled to produce the demanded thrust and to control a motor temperature of one or more of the associated motors.

公开(公告)号：US20210380221A1

公开(公告)日：2021-12-09

申请号：US16893029

申请日：2020-06-04

Applicant: Bell Textron Inc.

Inventor： Guillaume BIRON ,  Marc OUELLET ,  Alexis DUGRÉ

IPC: B64C11/34 ,  B64C27/39

Abstract: An exemplary continuous variable pitch rotor system includes a blade extending radially from a hub along a longitudinal axis, the blade rotationally coupled to the hub to permit limited rotation of the blade about the longitudinal axis in response to a change in a rotational speed of the hub. In some embodiments, the blade is held in a radially fixed position relative to the hub. In some embodiments, the blade is permitted to translate radially.