公开(公告)号：US20230056974A1

公开(公告)日：2023-02-23

申请号：US17407108

申请日：2021-08-19

Applicant: Textron Innovations Inc.

Inventor： Christopher Edward Foskey ,  Robert Roe

IPC: B64C27/50 ,  B64C29/00 ,  B64D27/24 ,  B64C27/00 ,  B64C39/04 ,  B64C27/37

Abstract: A stowable lift rotor is coupled to an airframe of a VTOL aircraft. The VTOL aircraft is convertible between a VTOL flight mode and a forward flight mode. The stowable lift rotor includes a lift arm. The proximal end of the lift arm is coupled to the airframe of the VTOL aircraft. The stowable lift rotor also includes a rotor assembly including rotor blades coupled to the distal end of the lift arm. The lift arm is movable between various positions including an extended position in the VTOL flight mode, a stowed position in the forward flight mode and intermediate positions therebetween such that the distance between the rotor assembly and the airframe is greater in the extended position than in the stowed position.

公开(公告)号：US20200262549A1

公开(公告)日：2020-08-20

申请号：US16716264

申请日：2019-12-16

Applicant: Textron Innovations Inc.

Inventor： Christopher Edward Foskey ,  Frank Bradley Stamps ,  Michael Reaugh Smith

IPC: B64C27/00 ,  B64C27/10 ,  B64C27/82 ,  B64C27/22

Abstract: An advancing blade concept rotorcraft includes an airframe and a pylon assembly subject to vibration. The pylon assembly includes a dual rotor system having coaxially disposed top and bottom rotor assemblies that counter rotate relative to one another. The advancing blade concept rotorcraft includes a vibration isolation system including at least one pylon link coupled to the airframe and the pylon assembly. The pylon link includes a Liquid Inertia Vibration Eliminator unit operable to reduce transmission of the pylon assembly vibration to the airframe. The advancing blade concept rotorcraft includes active force generators adjacent to the pylon assembly. The active force generators include a first active force generator producing a force in a first direction and a second active force generator producing a force in a second direction to counteract multidirectional oscillations of the pylon assembly, thereby reducing vibration of the advancing blade concept rotorcraft.

公开(公告)号：US12202600B1

公开(公告)日：2025-01-21

申请号：US18377465

申请日：2023-10-06

Applicant: Textron Innovations Inc.

Inventor： Christopher Edward Foskey

IPC: B64C3/40 ,  B64C29/00

Abstract: A variable-sweep wing for a tiltrotor aircraft includes a fuselage link coupled to the fuselage and a pylon link coupled to a pylon. A wing airframe has a root end pivotably coupled to the fuselage link and a tip end pivotably coupled to the pylon link. A driveshaft is coupled between the fuselage link and the pylon link and is positioned within the wing airframe. The driveshaft is operable to transmit torque from the main gearbox to a proprotor gearbox. A crank is coupled between the fuselage link and the pylon link and is positioned within the wing airframe. The fuselage link, the pylon link, the driveshaft and the crank form a linkage such that pivoting the crank relative to the fuselage link causes the wing airframe to shift between a substantially straight wing configuration for low-speed forward flight and a swept wing configuration for high-speed forward flight.

公开(公告)号：US11603191B1

公开(公告)日：2023-03-14

申请号：US17407108

申请日：2021-08-19

Applicant: Textron Innovations Inc.

Inventor： Christopher Edward Foskey ,  Robert Roe

IPC: B64C27/00 ,  B64C29/00 ,  B64D27/24 ,  B64C39/04

Abstract: A stowable lift rotor is coupled to an airframe of a VTOL aircraft. The VTOL aircraft is convertible between a VTOL flight mode and a forward flight mode. The stowable lift rotor includes a lift arm. The proximal end of the lift arm is coupled to the airframe of the VTOL aircraft. The stowable lift rotor also includes a rotor assembly including rotor blades coupled to the distal end of the lift arm. The lift arm is movable between various positions including an extended position in the VTOL flight mode, a stowed position in the forward flight mode and intermediate positions therebetween such that the distance between the rotor assembly and the airframe is greater in the extended position than in the stowed position.

公开(公告)号：US11214362B2

公开(公告)日：2022-01-04

申请号：US16716264

申请日：2019-12-16

Applicant: Textron Innovations Inc.

Inventor： Christopher Edward Foskey ,  Frank Bradley Stamps ,  Michael Reaugh Smith

IPC: B64C27/00 ,  B64C27/22 ,  B64C27/10 ,  B64C27/82

Abstract: An advancing blade concept rotorcraft includes an airframe and a pylon assembly subject to vibration. The pylon assembly includes a dual rotor system having coaxially disposed top and bottom rotor assemblies that counter rotate relative to one another. The advancing blade concept rotorcraft includes a vibration isolation system including at least one pylon link coupled to the airframe and the pylon assembly. The pylon link includes a Liquid Inertia Vibration Eliminator unit operable to reduce transmission of the pylon assembly vibration to the airframe. The advancing blade concept rotorcraft includes active force generators adjacent to the pylon assembly. The active force generators include a first active force generator producing a force in a first direction and a second active force generator producing a force in a second direction to counteract multidirectional oscillations of the pylon assembly, thereby reducing vibration of the advancing blade concept rotorcraft.