公开(公告)号：US20190077502A1

公开(公告)日：2019-03-14

申请号：US15699677

申请日：2017-09-08

Applicant: Bell Helicopter Textron Inc.

Inventor： Jason C. Owens ,  Frank B. Stamps ,  Andrew Paul Haldeman ,  Robert P. Wardlaw ,  John R. McCullough ,  Gary Miller ,  Andrew Ryan Maresh ,  Drew A. Sutton

IPC: B64C27/35 ,  B64C27/51 ,  B64C27/48 ,  F16C27/00

Abstract: In one embodiment, a rotor hub comprises a hub plate, a yoke for attaching a plurality of rotor blades, a plurality of yoke support bearings, and a plurality of cushioned damper bearings for attaching a plurality of dampers.

公开(公告)号：US10371243B2

公开(公告)日：2019-08-06

申请号：US14735577

申请日：2015-06-10

Applicant: Bell Helicopter Textron Inc.

Inventor： Brian Modrzejewski ,  Doug Mueller ,  Brad Ekstrom ,  Robert P. Wardlaw

IPC: F16H55/06 ,  B64C27/12 ,  F16H55/12 ,  F16B11/00

Abstract: According to one embodiment, a gear includes a steel portion that is oriented on a center axis. The steel portion includes a hub, a cylindrical rim, a web, and a plurality of engagement features. The hub is centered about the center axis. The rim has an exterior surface and an interior surface that surrounds the hub and is centered about the center axis. The web extends from an exterior surface of the hub to the interior surface of the rim. The engagement features are on the exterior surface of the cylindrical rim. The gear also includes a first composite piece adjacent to a first side of the web, the first composite piece extending from the hub to the interior surface of the rim, wherein the first composite piece does not extend past the hub towards the center axis.