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    12.
    发明专利
    未知

    公开(公告)号：IT1131116B

    公开(公告)日：1986-06-18

    申请号：IT2173180

    申请日：1980-05-02

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD LEROY

    IPC: B64C27/50 ,  B64C

    Abstract: In a fully articulated helicopter rotor head, utilizing an elastomeric bearing to support each rotor blade and react centrifugal flight loads, a blade restraint, effective in three axes is provided for use during blade folding for aircraft stowage purposes. The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing.

    13.
    发明专利
    未知

    公开(公告)号：IT1126494B

    公开(公告)日：1986-05-21

    申请号：IT2789179

    申请日：1979-12-07

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD LEROY ,  OGLE PETER CHASE

    IPC: B64C27/35 ,  B64C27/33 ,  B64C

    Abstract: A helicopter rotor having an even number of articulated blades wherein opposing blades are interconnected by a common spar passing across the rotor axis. Pitch change is introduced to the blade at the spar-blade attachment joint through a torque member connected at its outboard end to the blade joint and including a control horn at its inner end to receive pitch inputs. Drive for the rotor and support for each blade is provided by a spherical bearing directly connecting the torque member to the blade associated hub arm.

    14.
    发明专利
    未知

    公开(公告)号：NO148145B

    公开(公告)日：1983-05-09

    申请号：NO803955

    申请日：1980-12-30

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD LEROY

    IPC: B64C27/50

    Abstract: In a fully articulated helicopter rotor head, utilizing an elastomeric bearing to support each rotor blade and react centrifugal flight loads, a blade restraint, effective in three axes is provided for use during blade folding for aircraft stowage purposes. The restraint allows the blade to be folded through a predetermined fold plane, and held there while preventing or minimizing deflection of the elastomeric bearing.

    CROSS-BEAM ROTOR INCORPORATING BEARING MEANS
    15.
    发明专利
    CROSS-BEAM ROTOR INCORPORATING BEARING MEANS 未知

    公开(公告)号：AU525462B2

    公开(公告)日：1982-11-04

    申请号：AU5342779

    申请日：1979-12-04

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD LEROY ,  OGLE PETER CHASE

    IPC: B64C27/35 ,  B64C27/33 ,  B64C27/32

    Abstract: A helicopter rotor having an even number of articulated blades wherein opposing blades are interconnected by a common spar passing across the rotor axis. Pitch change is introduced to the blade at the spar-blade attachment joint through a torque member connected at its outboard end to the blade joint and including a control horn at its inner end to receive pitch inputs. Drive for the rotor and support for each blade is provided by a spherical bearing directly connecting the torque member to the blade associated hub arm.

    17.
    发明专利
    未知

    公开(公告)号：FR2376791A1

    公开(公告)日：1978-08-04

    申请号：FR7800269

    申请日：1978-01-06

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： FERRIS DONALD LEROY

    IPC: B64C27/33 ,  B64C27/35 ,  B64C27/38

    Abstract: A helicopter rotor having opposed blades interconnected by a common flexible spar which passes across the rotor axis is connected to the drive shaft by clamped hub plates. A spanwise extending torque tube having a pitch horn at its inner end forms a rigid connection with the spar and blade at its outboard end. A centering bearing assembly is positioned at the inner end of the torque tube and spar to react control loads, centralize the torque tube about the spar, and provide pitch, flap, and lead-lag decoupling.

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