公开(公告)号：US20200023954A1

公开(公告)日：2020-01-23

申请号：US16038366

申请日：2018-07-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Amarjit Kizhakkepat ,  Tyler Wayne Baldwin ,  Michael Dearman ,  Abey Kurikesu

IPC: B64C27/48 ,  B29C70/08

Abstract: A composite yoke includes a plurality of packs of unidirectional plies and at least one pack of chopped fibers disposed between two adjacent packs of unidirectional plies. A method of manufacturing a composite yoke includes arranging a plurality of plies of unidirectional fibers to form a first pack of unidirectional plies, arranging a layer of chopped fibers on the first pack of unidirectional plies, arranging a plurality of plies of unidirectional fibers on to form a second pack of unidirectional plies on the layer of chopped fibers, curing the composite yoke to form a cured composite yoke, and cutting excess material from the first pack of unidirectional plies, the layer of chopped fibers, and the second pack of unidirectional plies to form a plurality of arms.

公开(公告)号：US20190337606A1

公开(公告)日：2019-11-07

申请号：US15968649

申请日：2018-05-01

Applicant: Bell Helicopter Textron Inc.

Inventor： Abey Kurikesu ,  Amarjit O. Kizhakkepat

IPC: B64C7/02 ,  B64C29/00

Abstract: An aircraft, including a fixed nacelle disposed on a wing of the aircraft, the fixed nacelle including a nacelle opening; a proprotor pylon disposed on the wing and rotatable relative to the fixed nacelle between a substantially horizontal position and a non-horizontal position, wherein rotation of the proprotor pylon to a non-horizontal position exposes the nacelle opening; and a movable cover disposed on at least one of the wing and fixed nacelle, said movable cover including a plurality of cover members that are movable between a closed position where at least a portion of the cover members collectively form a protective cover in front of the nacelle opening when the proprotor pylon is positioned in the non-horizontal position and a stowed position where at least a portion of the plurality of cover members are stowed. In other aspects, there is provide a method of covering a nacelle opening.