公开(公告)号：US20210403173A1

公开(公告)日：2021-12-30

申请号：US16915602

申请日：2020-06-29

Applicant: Bell Textron Inc.

Inventor： Charles Hubert SPELLER ,  George Matthew THOMPSON

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

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：US20210371120A1

公开(公告)日：2021-12-02

申请号：US16889458

申请日：2020-06-01

Applicant: Bell Textron Inc.

Inventor： Charles Hubert SPELLER ,  Cody ANDERSON

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

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：US20210332879A1

公开(公告)日：2021-10-28

申请号：US16861069

申请日：2020-04-28

Applicant: Bell Textron Inc.

Inventor： Amanda Christine SAVAGE ,  Charles Hubert SPELLER

IPC: F16H57/04 ,  F16H57/02 ,  B64C27/14 ,  F04C2/10

Abstract: A gearbox system for a rotorcraft includes a gearbox housing, an oil pump receiving bore formed into the gearbox housing and having formed therein a first opening having a first diameter and a second opening, and an oil pump positioned within the oil pump receiving bore. The second opening is bounded by a lip that extends radially into the second opening, the second opening having a second diameter that is smaller than the first diameter.