公开(公告)号：US20240270381A1

公开(公告)日：2024-08-15

申请号：US18646221

申请日：2024-04-25

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Alessandro Rutilio ,  Stefano Poggi ,  Fabrizio Losi

IPC: B64C27/82 ,  B64C27/59 ,  B64C27/72

CPC classification number: B64C27/82 ,  B64C27/72 ,  B64C27/59

Abstract: An anti-torque rotor includes a mast rotatable about a first axis; a plurality of blades; an element slidable along the first axis, rotating integrally with the mast and operatively connected to the blades. The rotor also has a slidable control rod; a first bearing with a rotatable first ring, a second ring radially internal to the first ring and a plurality of first rolling bodies; a third ring slidable along the first axis and angularly fixed with respect to the first axis; and a locking element arranged in a first configuration, in which it prevents the relative rotation of the second and third rings and is movable from the first configuration to at least one emergency configuration, in which it renders the second ring free to rotate with respect to the third ring, when the first bearing is in a failure condition.

公开(公告)号：US20240270380A1

公开(公告)日：2024-08-15

申请号：US18646214

申请日：2024-04-25

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Alessandro Rutilio ,  Stefano Poggi ,  Fabrizio Losi

IPC: B64C27/82 ,  B64C27/59 ,  B64C27/72

CPC classification number: B64C27/82 ,  B64C27/72 ,  B64C27/59

Abstract: An anti-torque rotor includes a mast rotatable about a first axis; a plurality of blades; an element slidable along the first axis, rotating integrally with the mast and operatively connected to the blades. The rotor also has a slidable control rod; a first bearing with a rotatable first ring, a second ring radially internal to the first ring and a plurality of first rolling bodies; a third ring slidable along the first axis and angularly fixed with respect to the first axis; and a locking element arranged in a first configuration, in which it prevents the relative rotation of the second and third rings and is movable from the first configuration to at least one emergency configuration, in which it renders the second ring free to rotate with respect to the third ring, when the first bearing is in a failure condition.

公开(公告)号：US12091168B2

公开(公告)日：2024-09-17

申请号：US17621475

申请日：2020-05-26

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Alessandro Rutilio ,  Stefano Poggi ,  Fabrizio Losi

IPC: B64C27/82 ,  B64C27/59 ,  B64C27/72

CPC classification number: B64C27/82 ,  B64C27/72 ,  B64C27/59

Abstract: An anti-torque rotor includes a mast rotatable about a first axis; a plurality of blades; an element slidable along the first axis, rotating integrally with the mast and operatively connected to the blades. The rotor also has a slidable control rod; a first bearing with a rotatable first ring, a second ring radially internal to the first ring and a plurality of first rolling bodies; a third ring slidable along the first axis and angularly fixed with respect to the first axis; and a locking element arranged in a first configuration, in which it prevents the relative rotation of the second and third rings and is movable from the first configuration to at least one emergency configuration, in which it renders the second ring free to rotate with respect to the third ring, when the first bearing is in a failure condition.

公开(公告)号：US20220340272A1

公开(公告)日：2022-10-27

申请号：US17621475

申请日：2020-05-26

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Alessandro Rutilio ,  Stefano Poggi ,  Fabrizio Losi

IPC: B64C27/82 ,  B64C27/72

Abstract: An anti-torque rotor is described comprising: a mast rotatable about a first axis; a plurality of blades rotatable about respective second axes; an element slidable along the first axis with respect to the mast, rotating integrally with the mast and operatively connected to the blades; a control rod slidable along axis; a first bearing with a first ring rotating integrally with element, a second ring radially internal to the first ring with respect to the first axis and a plurality of first rolling bodies; a third ring sliding integrally with the control rod along the first axis and angularly fixed with respect to the first axis; and a locking element arranged in a standard configuration, in which it prevents the relative rotation of the second and third rings and movable from the standard configuration to at least one emergency configuration, in which it renders the second ring free to rotate with respect to the third ring, when the first bearing is in a failure condition.