公开(公告)号：US20210348521A1

公开(公告)日：2021-11-11

申请号：US17307948

申请日：2021-05-04

Applicant: GE Avio S.r.l.

Inventor： Marco Facchini ,  Gianluca Andrei ,  Paolo Altamura

IPC: F01D25/00 ,  F16H1/46 ,  F01D5/02

Abstract: A turbomachine engine includes a fan assembly and a core engine comprising a turbine and an input shaft rotatable with the turbine is provided. A single-stage epicyclic gear assembly receives the input shaft at a first speed and drives an output shaft coupled to the fan assembly at a second speed. A sun gear rotates about a longitudinal centerline of the gear assembly and has a sun gear-mesh region along the longitudinal centerline of the gear assembly where the sun gear is configured to contact a plurality of planet gears. A ring gear-mesh region is provided along the longitudinal centerline of the gear assembly where a ring gear is configured to contact the plurality of planet gears. The sun gear-mesh region is axially offset from the ring gear-mesh region along the longitudinal centerline.

公开(公告)号：US20230142971A1

公开(公告)日：2023-05-11

申请号：US18091753

申请日：2022-12-30

Applicant: GE Avio S.r.l.

Inventor： Marco Facchini ,  Gianluca Andrei ,  Paolo Altamura

IPC: F01D25/00 ,  F01D5/02 ,  F16H1/46 ,  F02C7/36 ,  F16H1/28 ,  F16H3/44 ,  F16H57/08 ,  F16H1/32

CPC classification number: F01D25/00 ,  F01D5/022 ,  F16H1/46 ,  F02C7/36 ,  F16H1/2809 ,  F16H3/44 ,  F16H57/08 ,  F16H1/32 ,  F16H2001/289 ,  F05D2260/40311

Abstract: A turbomachine engine includes a fan assembly and a core engine comprising a turbine and an input shaft rotatable with the turbine is provided. A single-stage epicyclic gear assembly receives the input shaft at a first speed and drives an output shaft coupled to the fan assembly at a second speed. A sun gear rotates about a longitudinal centerline of the gear assembly and has a sun gear-mesh region along the longitudinal centerline of the gear assembly where the sun gear is configured to contact a plurality of planet gears. A ring gear-mesh region is provided along the longitudinal centerline of the gear assembly where a ring gear is configured to contact the plurality of planet gears. The sun gear-mesh region is axially offset from the ring gear-mesh region along the longitudinal centerline.

公开(公告)号：US10823260B2

公开(公告)日：2020-11-03

申请号：US16020064

申请日：2018-06-27

Applicant: GE Avio S.r.l.

Inventor： Michele Gravina ,  Marco Facchini

IPC: F16H1/46 ,  F16H1/28 ,  F02C7/36 ,  F16H57/08 ,  F16H57/023 ,  B23K20/12

Abstract: A transmission device for splitting torque between two coaxial gears, in particular for a planetary gearing for aeronautic applications, has a motion input member and two transmission members, which are coaxial and have respective shafts provided with gears at an axial end and respective external flanges, at the opposite axial end; the two flanges are axially facing and placed abutting against each other, and are fixed to the motion input member so as to split the torque transmitted from the motion input member between the two flanges; one of the two shafts is axially hollow and houses, with radial clearance, an intermediate portion of the other shaft; the latter is formed by at least two pieces which are coaxial and fixed to each other.

公开(公告)号：US12078075B2

公开(公告)日：2024-09-03

申请号：US18091753

申请日：2022-12-30

Applicant: GE Avio S.r.l.

Inventor： Marco Facchini ,  Gianluca Andrei ,  Paolo Altamura

IPC: F02C7/36 ,  F01D5/02 ,  F01D25/00 ,  F16H1/28 ,  F16H1/32 ,  F16H1/46 ,  F16H3/44 ,  F16H57/08

CPC classification number: F01D25/00 ,  F01D5/022 ,  F02C7/36 ,  F16H1/2809 ,  F16H1/32 ,  F16H1/46 ,  F16H3/44 ,  F16H57/08 ,  F05D2260/40311 ,  F16H2001/289

Abstract: A turbomachine engine includes a fan assembly and a core engine comprising a turbine and an input shaft rotatable with the turbine is provided. A single-stage epicyclic gear assembly receives the input shaft at a first speed and drives an output shaft coupled to the fan assembly at a second speed. A sun gear rotates about a longitudinal centerline of the gear assembly and has a sun gear-mesh region along the longitudinal centerline of the gear assembly where the sun gear is configured to contact a plurality of planet gears. A ring gear-mesh region is provided along the longitudinal centerline of the gear assembly where a ring gear is configured to contact the plurality of planet gears. The sun gear-mesh region is axially offset from the ring gear-mesh region along the longitudinal centerline.

公开(公告)号：US11542829B2

公开(公告)日：2023-01-03

申请号：US17307948

申请日：2021-05-04

Applicant: GE Avio S.r.l.

Inventor： Marco Facchini ,  Gianluca Andrei ,  Paolo Altamura

IPC: F16H1/28 ,  F01D25/00 ,  F01D5/02 ,  F16H1/46 ,  F02C7/36 ,  F16H3/44 ,  F16H57/08 ,  F16H1/32

Abstract: A turbomachine engine includes a fan assembly and a core engine comprising a turbine and an input shaft rotatable with the turbine is provided. A single-stage epicyclic gear assembly receives the input shaft at a first speed and drives an output shaft coupled to the fan assembly at a second speed. A sun gear rotates about a longitudinal centerline of the gear assembly and has a sun gear-mesh region along the longitudinal centerline of the gear assembly where the sun gear is configured to contact a plurality of planet gears. A ring gear-mesh region is provided along the longitudinal centerline of the gear assembly where a ring gear is configured to contact the plurality of planet gears. The sun gear-mesh region is axially offset from the ring gear-mesh region along the longitudinal centerline.