公开(公告)号：US11142300B2

公开(公告)日：2021-10-12

申请号：US16655400

申请日：2019-10-17

Applicant: Bell Textron Inc.

Inventor： Kyle Thomas Cravener ,  Andrew Maresh ,  Chyausong Tzeng

IPC: B64C11/28 ,  F16C7/06 ,  B64C29/00 ,  B64C27/57 ,  B64C27/80 ,  B64C11/32 ,  B64C27/605

Abstract: An exemplary length adjustable link includes a tube having an internal bore and internal surface, a first rod end having a first shaft disposed in a first end of the internal bore, a second rod end having a second shaft disposed in a second end of the internal bore, and a member threadably connecting the first rod end to the second rod end.

公开(公告)号：US11136116B2

公开(公告)日：2021-10-05

申请号：US16561516

申请日：2019-09-05

Applicant: Bell Textron Inc.

Inventor： Andrew Ryan Maresh ,  Chyausong Tzeng ,  Russell Mueller

IPC: B64C27/41 ,  B64C27/35 ,  B64C27/12

Abstract: Embodiments are directed to a double Hooke's joint gimbal in a rotor system. An upper Hooke's joint has four arms extending radially outward to define first and second axes, and a lower Hooke's joint has four arms extending radially outward to define third and fourth axes. A pair of connectors couple the upper Hooke's joint and the lower Hooke's joint. A first set of bearings are positioned between arms on the upper and lower Hooke's joints and the connectors. The first set of bearings comprise an elastomer, such as elastomeric journal bearings. The upper Hooke's joint is coupled to a yoke and rotor blades by a driver assembly that allows rotor blade flapping. The lower Hooke's joint is coupled to and driven by a mast. A spherical bearing allows the upper Hooke's joint to move laterally along the mast.

公开(公告)号：US20210070432A1

公开(公告)日：2021-03-11

申请号：US16561516

申请日：2019-09-05

Applicant: Bell Textron Inc.

Inventor： Andrew Ryan Maresh ,  Chyausong Tzeng ,  Russell Mueller

IPC: B64C27/35 ,  F01D25/16 ,  F16C17/03

Abstract: Embodiments are directed to a double Hooke's joint gimbal in a rotor system. An upper Hooke's joint has four arms extending radially outward to define first and second axes, and a lower Hooke's joint has four arms extending radially outward to define third and fourth axes. A pair of connectors couple the upper Hooke's joint and the lower Hooke's joint. A first set of bearings are positioned between arms on the upper and lower Hooke's joints and the connectors. The first set of bearings comprise an elastomer, such as elastomeric journal bearings. The upper Hooke's joint is coupled to a yoke and rotor blades by a driver assembly that allows rotor blade flapping. The lower Hooke's joint is coupled to and driven by a mast. A spherical bearing allows the upper Hooke's joint to move laterally along the mast.