公开(公告)号：US20160146112A1

公开(公告)日：2016-05-26

申请号：US14900643

申请日：2014-06-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Gert J. Van der Merwe ,  Donald Albert Bradley

IPC: F02C7/36 ,  F02K3/06 ,  F16H57/08

CPC classification number: F02C7/36 ,  F02C7/32 ,  F02K3/06 ,  F05D2260/40311 ,  F05D2260/53 ,  F16H57/08 ,  F16H2057/085 ,  Y02T50/672

Abstract: An epicyclic gearbox comprises a gearbox housing including an inner cavity receiving an input shaft from a low pressure turbine and an output shaft connected to a fan. A sun gear is disposed within the housing and at least one planetary gear engages and orbits the sun gear. The at least one planetary gear is formed of a first material and an insert is disposed between a gear rim of the at least one planetary gear and a journal. The insert is formed of a second material distinct from the first material and of a weight which is lighter than the first material. The gearbox may include but is not limited to both star gearbox and planetary gearbox configurations.

Abstract translation: 行星齿轮箱包括齿轮箱壳体，其包括从低压涡轮机接收输入轴的内腔和连接到风扇的输出轴。 太阳齿轮设置在壳体内，并且至少一个行星齿轮接合并绕着太阳齿轮。 所述至少一个行星齿轮由第一材料形成，并且插入件设置在所述至少一个行星齿轮的齿轮边缘和轴颈之间。 插入件由不同于第一材料的第二材料和比第一材料轻的重物形成。 变速箱可以包括但不限于星形变速箱和行星齿轮箱配置。