公开(公告)号：US10526068B2

公开(公告)日：2020-01-07

申请号：US15428687

申请日：2017-02-09

Applicant: Bell Textron Inc.

Inventor： Troy Cyril Schank ,  Carlos Alexander Fenny ,  Andrew Maresh ,  Chyau-Song Tzeng

IPC: B64C27/54 ,  B64C11/28 ,  B64C29/00 ,  B64C27/30 ,  B64D27/20

Abstract: A mechanism for transitioning a tiltrotor aircraft between rotary and non rotary flight modes. The mechanism includes a gimbal lock positioned about a mast that is operable to selectively enable and disable a gimballing degree of freedom of a rotor assembly relative to the mast. A blade stop assembly, positioned about the mast, includes a plurality of arms having a radially contracted orientation and a radially extended orientation. A blade lock assembly is operably associated with each rotor blade assembly. Each blade lock assembly is operable to selectively enable and disable a folding degree of freedom and a pitching degree of freedom of the respective rotor blade assembly. A swash plate is operable to change the pitch of the rotor blade assemblies in the rotary flight mode and fold the rotor blade assemblies in the non rotary flight mode.