中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

41 records (took 0.027 seconds)

    Rotor blade locking assembly
    31.
    发明授权
    Rotor blade locking assembly 有权

    公开(公告)号：US10773793B2

    公开(公告)日：2020-09-15

    申请号：US16055121

    申请日：2018-08-05

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Kyle Thomas Cravener ,  Tyler Wayne Baldwin ,  Jared Mark Paulson

    IPC: B64C11/28 ,  B64C29/00 ,  B64C27/50

    Abstract: A rotor blade locking assembly for locking a rotor blade in a deployed position. The rotor blade locking assembly comprises a locking mechanism configured to be coupled to a blade grip. The locking mechanism comprises a latch and an actuator configured to cause the latch to move between an unlocked position and a locked position. The assembly comprises a locking plate configured to be coupled to the rotor blade. The locking plate comprises a bearing surface configured to bear against a contact surface of the latch, when the latch is in the locked position.

    COMPOSITE YOKE FOR ROTOR SYSTEM USING A COMBINATION OF BROAD GOODS AND CHOPPPED FIBER LAYUP
    34.
    发明申请
    COMPOSITE YOKE FOR ROTOR SYSTEM USING A COMBINATION OF BROAD GOODS AND CHOPPPED FIBER LAYUP 审中-公开

    公开(公告)号：US20200023954A1

    公开(公告)日：2020-01-23

    申请号：US16038366

    申请日：2018-07-18

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Amarjit Kizhakkepat ,  Tyler Wayne Baldwin ,  Michael Dearman ,  Abey Kurikesu

    IPC: B64C27/48 ,  B29C70/08

    Abstract: A composite yoke includes a plurality of packs of unidirectional plies and at least one pack of chopped fibers disposed between two adjacent packs of unidirectional plies. A method of manufacturing a composite yoke includes arranging a plurality of plies of unidirectional fibers to form a first pack of unidirectional plies, arranging a layer of chopped fibers on the first pack of unidirectional plies, arranging a plurality of plies of unidirectional fibers on to form a second pack of unidirectional plies on the layer of chopped fibers, curing the composite yoke to form a cured composite yoke, and cutting excess material from the first pack of unidirectional plies, the layer of chopped fibers, and the second pack of unidirectional plies to form a plurality of arms.

    Inboard bearing assemblies having load transfer shoe bolts
    35.
    发明授权
    Inboard bearing assemblies having load transfer shoe bolts 有权

    公开(公告)号：US10479497B2

    公开(公告)日：2019-11-19

    申请号：US15990624

    申请日：2018-05-26

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Robert Patrick Wardlaw ,  John Richard McCullough ,  Amarjit Olenchery Kizhakkepat ,  Tyler Wayne Baldwin

    IPC: B64C27/35 ,  B64C29/00 ,  B64C11/06 ,  F16C33/06 ,  F16C17/10

    Abstract: A proprotor system for a tiltrotor aircraft having helicopter and airplane flight modes includes a yoke having a plurality of blade arms each having an inboard pocket with an outboard surface. Each of a plurality of bearing assemblies is disposed at least partially within one of the inboard pockets with each bearing assembly including a shear bearing and a centrifugal force bearing having an integral shoe with an outboard surface. Each of a plurality of inboard beams is disposed at least partially between one of the centrifugal force bearings and one of the shear bearings. Each of a plurality of proprotor blades is coupled to one of the inboard beams. The integral shoes are coupled to the yoke such that there is a spaced apart relationship between the outboard surfaces of the integral shoes and the outboard surfaces of the pockets to prevent centrifugal force load transfer therebetween.

    HYBRID YOKE
    37.
    发明申请
    HYBRID YOKE 审中-公开

    公开(公告)号：US20190233095A1

    公开(公告)日：2019-08-01

    申请号：US15881980

    申请日：2018-01-29

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Tyler Wayne Baldwin ,  Kyle Thomas Cravener

    IPC: B64C27/33

    Abstract: A hybrid yoke including a center and yoke arms connected to flexure arms. An inboard centrifugal force bearing assembly connects to the yoke arm and a grip and an outboard shear bearing assembly connects to the flexure arm and the grip. In use, the center and yoke arms carry the centrifugal force at a position inboard of the flexure arm.

    High stiffness hub assembly for proprotor systems
    39.
    发明授权
    High stiffness hub assembly for proprotor systems 有权

    公开(公告)号：US10232932B2

    公开(公告)日：2019-03-19

    申请号：US15466825

    申请日：2017-03-22

    Applicant: Bell Helicopter Textron Inc.

    Inventor： Tyler Wayne Baldwin ,  Jouyoung Jason Choi ,  Richard Erler Rauber ,  Frank Bradley Stamps

    IPC: B63H1/06 ,  B64C11/34 ,  B64C29/00 ,  B64C11/00 ,  B64C27/605 ,  F16D3/62

    Abstract: A high stiffness hub assembly for a proprotor system operable to rotate with a mast of a tiltrotor aircraft having helicopter and airplane flight modes. The hub assembly includes a yoke and a constant velocity joint assembly. The yoke has four blade arms each adapted to hold a proprotor blade. The constant velocity joint assembly provides a torque path from the mast to the yoke that includes a trunnion assembly, four drive links and four pillow blocks. The trunnion assembly is coupled to the mast and has four outwardly extending trunnions. Each drive link has a leading bearing coupled to one of the trunnions and a trailing bearing coupled to one of the pillow blocks. Each pillow block is independently mounted between an upper surface of the yoke and a hub plate with two connection members that extend through the yoke and the pillow block.

Patent Agency Ranking