公开(公告)号：US11008094B2

公开(公告)日：2021-05-18

申请号：US16168028

申请日：2018-10-23

Applicant: Bell Helicopter Textron Inc.

Inventor： Kyle Thomas Cravener

IPC: B64C27/32

Abstract: The present invention includes a passive hub flapping lock including stop wedges; frames coupled to the stop wedges; rods coupled to the frames, and each rod comprising a bracket; lever arms, each lever arm rotatably coupled to a pivot and coupled at a first lever arm end to one of the rods at the bracket of the rod; weight sets, each weight set coupled to a second lever arm end; and pivot torsion springs, each pivot torsion spring positioned at a pivot and biased to hold the flapping lock in an engaged position when stationary or at a rotational speed below a specified rotational speed; wherein the flapping lock is in an engaged position below the specified rotational speed and in a disengaged position above the specified rotational speed and the weight sets move outward, rotating the lever arms.

公开(公告)号：US20200325937A1

公开(公告)日：2020-10-15

申请号：US16381106

申请日：2019-04-11

Applicant: Bell Helicopter Textron Inc.

Inventor： Tyler Wayne Baldwin ,  Kyle Thomas Cravener ,  Tyson Henry

IPC: F16C33/66 ,  F16D33/18 ,  B64C27/12

Abstract: Embodiments are directed to solid lubricant assemblies for providing over temperature protection for bearings and gears in rotorcraft systems. A solid lubricant enters a fluid state above a certain temperature and is positioned so that fluid lubricant is applied to the bearings or gears.

公开(公告)号：US10703461B2

公开(公告)日：2020-07-07

申请号：US15963516

申请日：2018-04-26

Applicant: Bell Helicopter Textron Inc.

Inventor： Kyle Thomas Cravener ,  Glenn Shimek

IPC: B64C11/28 ,  B64C29/00 ,  B64C3/56 ,  B64C11/06 ,  F16C17/02 ,  B64C11/30

Abstract: A folding rotor blade assembly for an aircraft a yoke, an inboard beam coupled to the yoke, an inboard centrifugal force bearing coupled to the inboard beam, a grip coupled to the inboard beam, an outboard bearing housing coupled to the grip, and a rotor blade pivotally coupled to the grip by a blade fold bolt that is positioned outboard of the outboard bearing housing.

公开(公告)号：US20190233097A1

公开(公告)日：2019-08-01

申请号：US15882573

申请日：2018-01-29

Applicant: Bell Helicopter Textron Inc.

Inventor： Kyle Thomas Cravener ,  Tyler Wayne Baldwin ,  Nicholas Allen Torske

IPC: B64C27/33 ,  B64C27/50

CPC classification number: B64C27/33 ,  B64C27/50 ,  B64C29/0033

Abstract: A multi-piece inboard beam assembly for use in a rotor blade assembly of a rotorcraft. The inboard beam assembly includes an inboard beam connected to an inboard beam fitting with an anti-rotational connection. The inboard beam is connected to a yoke via bearings and the inboard beam fitting is connected to a grip in a double shear condition. In use, the grip, the inboard beam fitting with the double shear connection, the inboard beam, a centrifugal force bearing held by the inboard beam, and the yoke carry the centrifugal force created upon rotation of the rotor blade assembly.

公开(公告)号：US20190185141A1

公开(公告)日：2019-06-20

申请号：US15845928

申请日：2017-12-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Jared Mark Paulson ,  Tyler Wayne Baldwin ,  Kyle Thomas Cravener

IPC: B64C11/28 ,  B64C3/56 ,  B64C29/00

Abstract: A folding rotor blade assembly for a tiltrotor aircraft comprising a rotor blade pivotally connected to a yoke with dual concentric blade bolts having a common central axis providing a pivotal axis inboard of an outboard shear bearing. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.

公开(公告)号：US11097837B2

公开(公告)日：2021-08-24

申请号：US16004689

申请日：2018-06-11

Applicant: Bell Helicopter Textron Inc.

Inventor： Tyler Wayne Baldwin ,  Kyle Thomas Cravener

IPC: B64C27/41 ,  F16C11/02 ,  F16C17/02 ,  F16C33/20 ,  F16D3/205 ,  B64C29/00 ,  F16D3/202

Abstract: A gimbal joint may employ a plurality of wear sleeves, each disposed between a pin or pin receptive bore of a first structure and a corresponding bore or pin of a second structure and between another pin or bore of the second structure and a corresponding bore or pin of a third structure. Each of these structures may be adapted to rotate in a single plane, with one structure adapted to also tilt about a first axis, and one other structure adapted to tilt about a second axis. Each integral flanged wear sleeve may comprise a right circular hollow cylindrical body portion, which may be interiorly sized to be retained on one of the pins and externally sized to be retained in one of the pin receptive bores, and a flange portion may radiate from one end of the cylindrical body portion.

公开(公告)号：US11009080B2

公开(公告)日：2021-05-18

申请号：US15916134

申请日：2018-03-08

Applicant: Bell Helicopter Textron Inc.

Inventor： Tyler Wayne Baldwin ,  Ryan T. Ehinger ,  Jared Mark Paulson ,  Michael Christopher Burnett ,  Kyle Thomas Cravener

IPC: F16D3/62 ,  F16C7/04 ,  B64C11/02 ,  B64C29/00

Abstract: A link includes an outer composite portion substantially encircling at least two bearing pockets and a central substantially incompressible portion disposed between the at least two bearing pockets.

公开(公告)号：US10703460B2

公开(公告)日：2020-07-07

申请号：US15845967

申请日：2017-12-18

Applicant: Bell Helicopter Textron Inc.

Inventor： Jared Mark Paulson ,  Tyler Wayne Baldwin ,  Kyle Thomas Cravener

IPC: B64C11/28 ,  B64C3/56 ,  B64C27/50 ,  B64C29/00

Abstract: A folding rotor blade assembly for a tiltrotor aircraft comprising a rotor blade pivotally connected to a grip with dual concentric blade bolts having a common central axis providing a pivotal axis inboard of an outboard bearing. A folding spindle connects the outboard bearing to an outboard tip of a yoke. The outboard bearing and the spindle fold with the rotor blade relative to the yoke. In use, the compact folded arrangement of the rotor blades reduces folded aircraft dimensions in response to ever increasing restricted storage space parameters.

公开(公告)号：US10583916B2

公开(公告)日：2020-03-10

申请号：US16401332

申请日：2019-05-02

Applicant: Bell Helicopter Textron Inc.

Inventor： Kyle Thomas Cravener ,  Brady Garrett Atkins ,  Stuart Benjamin Cook ,  Joaquin Vargas Calvet ,  Andrew Michael White ,  Karl Bailey ,  Corrine Jagneaux ,  Maika Lopati Mauga

IPC: B64C27/06 ,  B64C13/16 ,  B64C27/00 ,  B64C27/52 ,  B64C11/06 ,  B06B1/06 ,  B64C11/30 ,  B64C19/02

Abstract: The aircraft includes a rotor. The rotor includes a plurality of rotor blades. The aircraft further includes a non-rotating aircraft component. A proximity sensor is disposed with at least one of the non-rotating aircraft component and the rotor blades. A flight control computer is electrically coupled to the proximity sensor.

公开(公告)号：US20200001988A1

公开(公告)日：2020-01-02

申请号：US16024986

申请日：2018-07-02

Applicant: Bell Helicopter Textron Inc.

Inventor： Kyle Thomas Cravener ,  Paul Sherrill

IPC: B64C27/00 ,  B64C27/57

Abstract: The aircraft includes a rotor. The rotor includes a plurality of rotor blades. The aircraft further includes a non-rotating aircraft component. A proximity sensor is disposed with at least one of the non-rotating aircraft component and the rotor blades. A flight control computer is electrically coupled to the proximity sensor.