公开(公告)号：US12181038B2

公开(公告)日：2024-12-31

申请号：US18549272

申请日：2022-03-01

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Andrea Gabrielli ,  Federico Montagna ,  Diego Scaltritti

IPC: F16H57/08 ,  B64D35/02

Abstract: An aircraft capable of hovering is described, comprising a motor member; a rotor connected to the motor member; a transmission shaft rotatable around a first axis and adapted to drive the rotor; and a transmission interposed between the motor member and the rotor and comprising a planetary gear formed by a sun rotatable around a second axis; a crown that is angularly fixed; and two satellites meshing, each, with the crown and the sun, and rotatable around respective third axes, which are, in turn, rotatable around the second axis; and a satellite carrier rotatable around the second axis and comprising two first pins with respect to which the satellites are rotatable around the respective third axes; the transmission comprises an interface, angularly integral with the satellite carrier around the second axis and said transmission shaft around the first axis; the interface being coupled to said satellite carriers and the transmission shaft so as to allow an angular misalignment between the second axis and a portion of the interface.

公开(公告)号：US11891187B2

公开(公告)日：2024-02-06

申请号：US17414499

申请日：2019-11-28

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Andrea Gabrielli ,  Roberto Regonini ,  Federico Montagna ,  Stefano Poggi

IPC: B64D35/00 ,  B64C29/00 ,  F16C19/18 ,  F16C19/54 ,  F16C25/08

CPC classification number: B64D35/00 ,  B64C29/0033 ,  F16C19/18 ,  F16C19/543 ,  F16C25/083 ,  F16C2326/43

Abstract: An aircraft is described comprising: a support element; a shaft rotating about an axis; a pair of oblique rolling bearings mounted so as to couple the shaft to the support element rotatingly about the axis; the rolling bearings comprising: respective first races cooperating radially in contact with a first component defined by one from the support element and the shaft; respective second races cooperating radially in contact with a second component defined by the other from the support element and the shaft; and respective pluralities of rolling elements adapted to roll on the first and second races; the aircraft further comprises a pair of preloaded elastic members, which couple the first races to the first component respectively, axially and in an elastically yielding manner.

公开(公告)号：US20240167561A1

公开(公告)日：2024-05-23

申请号：US18549272

申请日：2022-03-01

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Andrea Gabrielli ,  Federico Montagna ,  Diego Scaltritti

IPC: F16H57/08 ,  B64D35/02

CPC classification number: F16H57/082 ,  B64D35/02 ,  F16H2200/2007

Abstract: An aircraft capable of hovering is described, comprising a motor member; a rotor connected to the motor member; a transmission shaft rotatable around a first axis and adapted to drive the rotor; and a transmission interposed between the motor member and the rotor and comprising a planetary gear formed by a sun rotatable around a second axis; a crown that is angularly fixed; and two satellites meshing, each, with the crown and the sun, and rotatable around respective third axes, which are, in turn, rotatable around the second axis; and a satellite carrier rotatable around the second axis and comprising two first pins with respect to which the satellites are rotatable around the respective third axes; the transmission comprises an interface, angularly integral with the satellite carrier around the second axis and said transmission shaft around the first axis; the interface being coupled to said satellite carriers and the transmission shaft so as to allow an angular misalignment between the second axis and a portion of the interface.

公开(公告)号：US20220073201A1

公开(公告)日：2022-03-10

申请号：US17414499

申请日：2019-11-28

Applicant: LEONARDO S.P.A.

Inventor： Daniele Podda ,  Andrea Gabrielli ,  Roberto Regonini ,  Federico Montagna ,  Stefano Poggi

IPC: B64C29/00 ,  F16C25/08 ,  F16C19/18 ,  F16C19/54

Abstract: An aircraft is described comprising: a support element; a shaft rotating about an axis; a pair of oblique rolling bearings mounted so as to couple the shaft to the support element (rotatingly about the axis; the rolling bearings comprising: respective first races cooperating radially in contact with a first component (defined by one from the support element and the shaft; respective second races cooperating radially in contact with a second component (defined by the other from the support element and the shaft; and respective pluralities of rolling elements adapted to roll on the first and second races; the aircraft further comprises a pair of preloaded elastic members, which couple the first races to the first component respectively, axially and in an elastically yielding manner.