公开(公告)号：US11731779B2

公开(公告)日：2023-08-22

申请号：US16889458

申请日：2020-06-01

Applicant: Textron Innovations Inc.

Inventor： Charles Hubert Speller ,  Cody Anderson

IPC: B64D35/08 ,  B64C29/00 ,  B64D27/24 ,  F16D41/069 ,  F16H1/28

CPC classification number: B64D35/08 ,  B64C29/0033 ,  B64D27/24 ,  F16D41/069 ,  F16H1/28 ,  F16D2300/06

Abstract: A rotorcraft includes a plurality of fan assemblies. Each fan assembly of the plurality of fan assemblies includes a drivetrain having a gearbox with an input shaft and a mast coaxially aligned with the input shaft, and a plurality of electric motors coupled to the input shaft. Each electric motor of the plurality of electric motors is coupled to the input shaft via a sprag clutch.

公开(公告)号：US11420760B2

公开(公告)日：2022-08-23

申请号：US16915602

申请日：2020-06-29

Applicant: Textron Innovations Inc.

Inventor： Charles Hubert Speller ,  George Matthew Thompson

IPC: F16H57/08 ,  B64D35/00 ,  F16H1/28 ,  F16J15/3268 ,  B64C29/00

Abstract: A seal system for coaxially aligned shafts includes an input shaft and an output shaft coaxially aligned with the input shaft. The seal system includes a seal adapter support housing coupled to the output shaft and a seal positioned between an end of the input shaft and an end of the seal adapter support housing. The input shaft is configured to rotate at a speed that is different than a speed of the output shaft.

公开(公告)号：US10960972B2

公开(公告)日：2021-03-30

申请号：US16148154

申请日：2018-10-01

Applicant: Textron Innovations Inc.

Inventor： Russell Lee Mueller ,  Charles Hubert Speller

IPC: B64C27/14 ,  B23K20/02 ,  B64F5/10 ,  B64C29/00

Abstract: A propulsion assembly for a rotorcraft includes a mast including a distal ridge and a proximal ridge forming a retaining pocket therebetween, a raceway receivable by the retaining pocket to form a press fit between the mast and the raceway and a mast bearing assembly including a plurality of bearings facing the mast to engage the raceway. The distal and proximal ridges are operable to reduce axial motion of the raceway along the mast, thereby securing the raceway in the retaining pocket.