公开(公告)号：US20200023946A1

公开(公告)日：2020-01-23

申请号：US16297617

申请日：2019-03-09

Applicant: Bell Helicopter Textron Inc.

Inventor： Adam Bryant Anderson ,  Steven Ray Ivans ,  Jeremy Robert Chavez

IPC: B64C23/06 ,  B64C3/38 ,  B64C29/00

Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly rotatably coupled to a fixed pylon and operable to rotate between a vertical takeoff and landing orientation and a forward flight orientation. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension is rotatably disposed to the outboard end of the fixed pylon such that the rotor assembly and the wing extension are separated by at least a portion of the fixed pylon. The wing extension has a forward edge and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a forward edge. The wing extension and the winglet are configured to rotate in synchrony with the rotor assembly such that the forward edges of the wing extension and the winglet remain in the slipstream of the proprotor.

公开(公告)号：US20180079493A1

公开(公告)日：2018-03-22

申请号：US15269862

申请日：2016-09-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Adam Bryant Anderson ,  Steven Ray Ivans ,  Jeremy Robert Chavez

IPC: B64C23/06 ,  B64C29/00 ,  B64C3/38

CPC classification number: B64C23/072 ,  B64C3/385 ,  B64C23/069 ,  B64C29/0033 ,  Y02T50/164

Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly operable to rotate between a generally vertical orientation, in a VTOL flight mode, and a generally horizontal orientation, in a forward flight mode, and having an intermediate orientation therebetween, in a conversion flight mode. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension, positioned outboard of the rotor assembly, has a minimal dimension and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a minimal dimension. The wing extension and the winglet are operable to rotate generally with the rotor assembly such that the minimal dimensions of the wing extension and the winglet remain in the slipstream of the proprotor.

公开(公告)号：US10266252B2

公开(公告)日：2019-04-23

申请号：US15269862

申请日：2016-09-19

Applicant: Bell Helicopter Textron Inc.

Inventor： Adam Bryant Anderson ,  Steven Ray Ivans ,  Jeremy Robert Chavez

IPC: B64C23/06 ,  B64C3/38 ,  B64C29/00

Abstract: A pylon assembly for a tiltrotor aircraft includes a rotor assembly operable to rotate between a generally vertical orientation, in a VTOL flight mode, and a generally horizontal orientation, in a forward flight mode, and having an intermediate orientation therebetween, in a conversion flight mode. The rotor assembly includes a proprotor operable to produce a slipstream. A wing extension, positioned outboard of the rotor assembly, has a minimal dimension and an outboard end. A winglet is coupled to the outboard end of the wing extension and has a minimal dimension. The wing extension and the winglet are operable to rotate generally with the rotor assembly such that the minimal dimensions of the wing extension and the winglet remain in the slipstream of the proprotor.