公开(公告)号：US20150125300A1

公开(公告)日：2015-05-07

申请号：US14072511

申请日：2013-11-05

Applicant: Bell Helicopter Textron Inc.

Inventor： Frank B. Stamps ,  Richard Rauber ,  Hunter Jay Davis

IPC: B64C27/37 ,  B64C27/35

CPC classification number: B64C27/35 ,  B64C27/41

Abstract: A drive mechanism for a rotary aircraft includes an outer drive member having a plurality of drive trunnions extending therefrom; a middle drive member resiliently coupled to the outer drive member; and an inner drive member resiliently coupled to the middle drive member.

Abstract translation: 用于旋转飞行器的驱动机构包括具有从其延伸的多个驱动轴颈的外部驱动构件; 弹性地联接到所述外部驱动构件的中间驱动构件; 以及弹性地联接到所述中间驱动构件的内部驱动构件。

公开(公告)号：US10239609B2

公开(公告)日：2019-03-26

申请号：US15656929

申请日：2017-07-21

Applicant: Bell Helicopter Textron Inc.

Inventor： Hunter Jay Davis ,  Mark Adam Wiinikka

IPC: B64C27/54 ,  B64C27/605 ,  F16C7/06

Abstract: A system and method for measuring, or otherwise determining pitch length adjustments to a pitch link coupled to a rotor blade in a rotorcraft includes vertical track adjustment indicators machined onto an exterior of the tube of the pitch link and a vertical reference indicator machined onto an exterior of the upper or the lower rod of the pitch link. A metric of a pitch length adjustment can be determined by tracking or counting how many track adjustment indicators pass the reference indicator while the tube of the pitch link is being turned in either direction for increasing or decreasing the pitch length. The track adjustment indicators can be relied upon to track one or a series of adjustments for tracking a rotor blade installed in a rotor assembly.