A soft-in-plane proprotor system (100) for a tiltrotor aircraft (10) having a helicopter mode and an airplane mode. The proprotor system (100) includes a hub (102), a plurality of proprotor blades (104) and a plurality of loop yokes (120), each coupling one of the proprotor blades (104) with the hub (102) and each including first (204) and second (206) longitudinal sections extending between inboard (208) and outboard (210) arcuate sections and a bearing assembly (118) disposed between the inboard (208) and outboard (210) arcuate sections of each loop yoke (120). Each bearing assembly (118) includes a flapping bearing (122) disposed generally within the inboard arcuate section (208) of the respective loop yoke (120) and coupled to the hub (102), a lead-lag damper (128) coupled to the hub (108), a centrifugal force bearing (138) disposed generally within the outboard arcuate section (210) of the respective loop yoke (120) and a blade anchor (130) coupled between the lead-lag damper (128) and the centrifugal force bearing (138). The blade anchor (130) is also coupled to the respective proprotor blade (104).


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    Title :

    SOFT-IN-PLANE PROPROTOR SYSTEMS


    Additional title:

    SOFT-IN-PLANE PROPROTORSYSTEME
    SYSTÈMES DE ROTOR ORIENTABLE SOUPLE DANS LE PLAN



    Publication date :

    2019-05-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B64C AEROPLANES , Flugzeuge



    Soft-in-plane proprotor systems

    STAMPS FRANK BRADLEY / CHOI JOUYOUNG JASON / PARHAM JR THOMAS CLEMENT et al. | European Patent Office | 2020

    Free access

    SOFT-IN-PLANE PROPROTOR SYSTEMS

    PARHAM THOMAS CLEMENT / CHOI JOUYOUNG JASON / MILLER GARY et al. | European Patent Office | 2019

    Free access

    Soft-in-plane proprotor systems

    PARHAM JR THOMAS CLEMENT / CHOI JOUYOUNG JASON / MILLER GARY et al. | European Patent Office | 2019

    Free access

    Soft-in-Plane Proprotor Systems

    PARHAM JR THOMAS CLEMENT / CHOI JOUYOUNG JASON / MILLER GARY et al. | European Patent Office | 2018

    Free access

    Soft-in-Plane Proprotor Systems

    STAMPS FRANK BRADLEY / CHOI JOUYOUNG JASON / PARHAM JR THOMAS CLEMENT et al. | European Patent Office | 2018

    Free access