发明名称 Catcher ring assembly
摘要 A catcher ring assembly (170) configured to limit axial movement of a turbomachine shaft assembly (132, 132′) during a failure mode, the catcher ring assembly comprising a catcher ring (172) disposable about and connectable to the shaft assembly, wherein one of the shaft assembly and the catcher ring comprises a protrusion (194, 182) and the other of the shaft assembly and the catcher ring comprises a recess (192, 184), the recess corresponding in shape to the protrusion, wherein the protrusion and recess are circumferentially disposed about a longitudinal axis of the shaft assembly and the protrusion extends in an axial direction.
申请公布号 US9316231(B2) 申请公布日期 2016.04.19
申请号 US201213584260 申请日期 2012.08.13
申请人 ROLLS-ROYCE plc 发明人 Simms Paul
分类号 F04D29/043;F01D21/04;F04D27/02 主分类号 F04D29/043
代理机构 Oliff PLC 代理人 Oliff PLC
主权项 1. A catcher ring assembly configured to limit axial movement of a turbomachine shaft assembly during a failure mode, the catcher ring assembly comprising: a catcher ring disposable about and connectable to the shaft assembly, both the catcher ring and the shaft assembly include a protrusion and a recess, the recess of the catcher ring corresponding in shape to the protrusion of the shaft assembly, and the recess of the shaft assembly corresponding in shape to the protrusion of the catcher ring, the protrusions and the recesses being circumferentially disposed about a longitudinal axis of the shaft assembly, and the protrusion of the catcher ring extending away from the catcher ring in an axial direction and the protrusion of the shaft assembly extending away from the shaft assembly in an opposing axial direction, and a nut assembly including an intermediate element and a nut, the intermediate element being provided between the nut and the catcher ring, wherein: the catcher ring assembly includes a spline or recess for engagement with a corresponding recess or spline provided on the shaft assembly respectively, the recess and spline being configured to limit rotation of the catcher ring assembly relative to the shaft assembly, and the intermediate element includes the spline or recess for engagement with the corresponding recess or spline provided on the shaft assembly respectively.
地址 London GB