公开(公告)号：US06827548B2

公开(公告)日：2004-12-07

申请号：US10309282

申请日：2002-12-04

申请人： Todd M Coxhead ,  James M Townsend ,  Kenneth F Udall

发明人： Todd M Coxhead ,  James M Townsend ,  Kenneth F Udall

IPC分类号： F01B3136

CPC分类号： F02C7/36 ,  F01D21/02 ,  F05D2270/091

摘要： A gas turbine engine 10 includes an intermediate pressure compressor 14 connected to an intermediate pressure turbine 22 by a driveshaft 28. The driveshaft 28 comprises a downstream turbine shaft 34 attached to the intermediate pressure turbine 22 and an upstream compressor shaft 32 attached to the intermediate pressure compressor 14. The compressor shaft 32 and turbine shaft 34 are connected together by a splined connection 36 which allows the turbine shaft 34 to drive the compressor shaft 32. If the splined connected 36 should fail, so that it no longer transmits torque, a further splined connection 41 comes into operation to transmit torque between the turbine shaft 34 and compressor shaft 32. When this happens, torque is transmitted via a torsionally weakened, shear section 48 of the turbine shaft 34 which tends to break under certain engine conditions. The turbine shaft 34 is then released axially and turbine overspeed is restrained.

摘要翻译： 燃气涡轮发动机10包括通过驱动轴28连接到中压涡轮机22的中压压缩机14.驱动轴28包括连接到中压涡轮22的下游涡轮轴34和附接到中压的上游压缩机轴32 压缩机轴32和涡轮轴34通过花键连接件36连接在一起，花键连接件36允许涡轮机轴34驱动压缩机轴32.如果花键连接的36应该失效，使得它不再传递扭矩 花键连接41运行以在涡轮机轴34和压缩机轴32之间传递扭矩。当这种情况发生时，扭矩通过涡轮机轴34的扭转减弱的剪切部分48传递，其在某些发动机条件下倾向于断裂。 涡轮轴34然后被轴向释放并且涡轮超速被限制。

公开(公告)号：US06986637B2

公开(公告)日：2006-01-17

申请号：US10839251

申请日：2004-05-06

申请人： Todd M Coxhead

发明人： Todd M Coxhead

IPC分类号： F01D21/00

CPC分类号： F01D21/045 ,  F01D5/027

摘要： A stub shaft for a turbine engine is described in which respective masses are positioned along the stub shaft in a balanced rotation relationship for normal rotation. One mass is positioned at the periphery of a shaft end rim such that upon failure of the stub shaft this mass is detached. Such displacement or detachment of the mass causes imbalance which creates vibration which in turn causes surge within a compressor associated with the stub shaft as well as possibly interference engagement with stable structure elements in order to limit turbine and/or compressor over speed.

摘要翻译： 描述了用于涡轮发动机的短轴，其中相应的质量沿着短轴定位，以平衡的旋转关系用于正常旋转。 一个质量块位于轴端边缘的周边处，使得当短轴故障时，该质量块被分离。 质量的这种位移或分离导致不平衡，这产生振动，这又产生与短轴相关联的压缩机内的浪涌，以及可能与稳定结构元件的干涉接合，以限制涡轮机和/或压缩机的转速。