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公开(公告)号:US11454280B2
公开(公告)日:2022-09-27
申请号:US16916353
申请日:2020-06-30
Applicant: Textron Innovations Inc.
Inventor: George Matthew Thompson , Joseph Richard Carpenter, Jr. , Paul Sherrill , Jonathan Andrew Knoll
Abstract: A bearing system includes an inboard bearing assembly and an outboard bearing assembly. The inboard bearing assembly includes an inboard fitting and an inboard race. The inboard fitting includes a plate with a convex mating surface and a first aperture formed through the plate for receiving a blade root of a rotor blade. The inboard race comprising a concave mating surface configured to receive the convex mating surface a second aperture formed the inboard race. The outboard bearing assembly includes an outboard bearing assembly comprising an outboard fitting having an aperture formed therethrough for receiving the blade root of the rotor blade.
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公开(公告)号:US20240300641A1
公开(公告)日:2024-09-12
申请号:US18178897
申请日:2023-03-06
Applicant: Textron Innovations Inc.
Inventor: David Shultz , Bryan Baskin , Jason Owens , Robert Self , Paul Sherrill , Nicholas Allen Torske
IPC: B64C27/00 , B64C27/473
CPC classification number: B64C27/008 , B64C27/001 , B64C27/473
Abstract: A rotorcraft has a rotor blade having a spar comprising an internal space. A weight system is disposed within the spar and the weight system includes a weight tray having an open top, a weight guide rod connected to the weight tray. The weight guide rod extends in a spanwise direction through an interior of the weight tray and a weight is disposed on the weight guide rod and vertically captured by at least one side wall of the weight tray. The weight guide rod is insertable into the weight tray from a location above the weight tray to restrict longitudinal movement of the weight guide rod relative to the weight tray.
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公开(公告)号:US12012200B2
公开(公告)日:2024-06-18
申请号:US17462546
申请日:2021-08-31
Applicant: Textron Innovations Inc.
Inventor: George Matthew Thompson , Jonathan Knoll , Paul Sherrill
Abstract: A rotor assembly has a rotor hub having a unitary structure. The rotor assembly further includes a unitary crosshead having a first upper tab and a first lower tab located vertically below the first upper tab. The first upper tab and the first lower tab define a slot therebetween to accept a first pin of the first rotor blade. A second upper tab and a second lower tab located vertically below the second upper tab define a slot therebetween to accept a second pin of the second rotor blade. A first recess is provided between the first lower tab and the second lower tab so that the crosshead comprises no material directly between at least a portion of the first lower tab and the second lower tab along at least one straight path.
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公开(公告)号:US20210387717A1
公开(公告)日:2021-12-16
申请号:US17462546
申请日:2021-08-31
Applicant: Textron Innovations Inc.
Inventor: George Matthew Thompson , Jonathan Knoll , Paul Sherrill
Abstract: A rotor assembly has a rotor hub having a unitary structure. The rotor assembly further includes a unitary crosshead having a first upper tab and a first lower tab located vertically below the first upper tab. The first upper tab and the first lower tab define a slot therebetween to accept a first pin of the first rotor blade. A second upper tab and a second lower tab located vertically below the second upper tab define a slot therebetween to accept a second pin of the second rotor blade. A first recess is provided between the first lower tab and the second lower tab so that the crosshead comprises no material directly between at least a portion of the first lower tab and the second lower tab along at least one straight path.
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公开(公告)号:US12110101B2
公开(公告)日:2024-10-08
申请号:US18178897
申请日:2023-03-06
Applicant: Textron Innovations Inc.
Inventor: David Shultz , Bryan Baskin , Jason Owens , Robert Self , Paul Sherrill , Nicholas Allen Torske
IPC: B64C27/00 , B64C27/473
CPC classification number: B64C27/008 , B64C27/001 , B64C27/473
Abstract: A rotorcraft has a rotor blade having a spar comprising an internal space. A weight system is disposed within the spar and the weight system includes a weight tray having an open top, a weight guide rod connected to the weight tray. The weight guide rod extends in a spanwise direction through an interior of the weight tray and a weight is disposed on the weight guide rod and vertically captured by at least one side wall of the weight tray. The weight guide rod is insertable into the weight tray from a location above the weight tray to restrict longitudinal movement of the weight guide rod relative to the weight tray.
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