公开(公告)号：US11555521B2

公开(公告)日：2023-01-17

申请号：US17074906

申请日：2020-10-20

Applicant: GE Avio S.r.l.

Inventor： Tomasz Kowalewski ,  Ivan Borra ,  Gian Mario Bragallini ,  Vincenzo Giordano

IPC: F16H1/14 ,  F16D1/108 ,  F02C7/32 ,  F16D1/08 ,  F16D1/10

Abstract: A gearbox comprising a main unit comprising a first casing and a first hollow shaft, and a secondary unit comprising a second casing and a second hollow shaft, and a drive shaft comprising a first clutch portion and a second clutch portion, which engage the first and second hollow shafts in an angularly fixed and axially sliding manner. The gearbox further including an axial retaining device comprising an axial shoulder supported in a fixed potion by an axial end on one of the first or second hollow shafts, and an external radial projection arranged in an intermediate position, and an external radial projection arranged in an intermediate position along the drive shaft between the first and second clutch portions.

公开(公告)号：US11286976B2

公开(公告)日：2022-03-29

申请号：US17014189

申请日：2020-09-08

Applicant: GE Avio S.r.l.

Inventor： Andrea Donnini ,  Ivan Borra

IPC: F16C19/18 ,  F16C25/08 ,  F16C19/06 ,  F16C19/16

Abstract: An axially hyperstatic system softener for a transmission comprising a static component and a rotatable component mounted to each other by a double ball bearing having an outer race and an inner race includes first and second biasing elements in a rigid sleeve with the outer race disposed between the first and second biasing elements. The rotatable component includes two shafts splined together with the static component mounted to one of the shafts by the bearing double ball bearing. A shim between one of the biasing elements and the sleeve enables tuning the softener.

公开(公告)号：US20210079951A1

公开(公告)日：2021-03-18

申请号：US17014189

申请日：2020-09-08

Applicant: GE Avio S.r.l.

Inventor： Andrea Donnini ,  Ivan Borra

IPC: F16C19/06 ,  F16C25/08

Abstract: An axially hyperstatic system softener for a transmission comprising a static component and a rotatable component mounted to each other by a double ball bearing having an outer race and an inner race includes first and second biasing elements in a rigid sleeve with the outer race disposed between the first and second biasing elements. The rotatable component includes two shafts splined together with the static component mounted to one of the shafts by the bearing double ball bearing. A shim between one of the biasing elements and the sleeve enables tuning the softener.

公开(公告)号：US20210079957A1

公开(公告)日：2021-03-18

申请号：US17020204

申请日：2020-09-14

Applicant: GE Avio S.r.l.

Inventor： Lorenzo Silvestro ,  Ivan Borra

IPC: F16D11/10 ,  F16H57/00 ,  F16C19/16

Abstract: A selectively connectable driveline system including a first rotatable shaft extended along a lateral direction, a second rotatable shaft extended along the lateral direction separable along the lateral direction from the first rotatable shaft, and a coupling assembly moveable along the lateral direction. The coupling assembly is connected to the first rotatable shaft and is further selectively connectable to the second rotatable shaft.

公开(公告)号：US11603890B2

公开(公告)日：2023-03-14

申请号：US17020204

申请日：2020-09-14

Applicant: GE Avio S.r.l.

Inventor： Lorenzo Silvestro ,  Ivan Borra

IPC: F16D11/10 ,  F16D11/00 ,  F16D23/12

Abstract: A selectively connectable driveline system including a first rotatable shaft extended along a lateral direction, a second rotatable shaft extended along the lateral direction separable along the lateral direction from the first rotatable shaft, and a coupling assembly moveable along the lateral direction. The coupling assembly is connected to the first rotatable shaft and is further selectively connectable to the second rotatable shaft.

公开(公告)号：US20210071717A1

公开(公告)日：2021-03-11

申请号：US17074906

申请日：2020-10-20

Applicant: GE Avio S.r.l.

Inventor： Tomasz Kowalewski ,  Ivan Borra ,  Gian Mario Bragallini ,  Vincenzo Giordano

IPC: F16D1/108 ,  F02C7/32 ,  F16D1/08 ,  F16D1/10 ,  F16H1/14

Abstract: A gearbox comprising a main unit comprising a first casing and a first hollow shaft, and a secondary unit comprising a second casing and a second hollow shaft, and a drive shaft comprising a first clutch portion and a second clutch portion, which engage the first and second hollow shafts in an angularly fixed and axially sliding manner. The gearbox further including an axial retaining device comprising an axial shoulder supported in a fixed portion by an axial end on one of the first or second hollow shafts, and an external radial projection arranged in an intermediate position, and an external radial projection arranged in an intermediate position along the drive shaft between the first and second clutch portions.