公开(公告)号：US20150275695A1

公开(公告)日：2015-10-01

申请号：US14657601

申请日：2015-03-13

Applicant: ROLLS-ROYCE PLC

Inventor： Dale Edward EVANS ,  David Laker CHRISTMAS

IPC: F01D25/26 ,  F01D25/28 ,  F01D25/24

CPC classification number: F01D25/26 ,  F01D21/045 ,  F01D25/243 ,  F01D25/28 ,  F02K3/06 ,  F05D2220/32 ,  F05D2220/36 ,  F05D2230/51 ,  F05D2230/60 ,  F05D2260/311

Abstract: A turbomachine casing assembly including an inner casing element for arrangement radially outward of a turbomachine fan; an outer casing element for arrangement radially further outward of the turbomachine fan; a retaining lip arranged radially inward of a portion of the inner casing element; and a separator extending between the inner and outer casing elements and arranged to urge a portion of the inner casing element against the lip. The separator is arranged in compression between the inner and outer casing elements to urge the portion of the inner casing element against the lip. The separator is arranged to engage a frangible region of the inner casing element such that the frangible region is configured to break in response to an impact satisfying predetermined conditions, allowing the inner casing element to displace radially outwards exposing features to improve retention of a released fan blade.

Abstract translation: 一种涡轮机壳体组件，包括用于布置在涡轮机风扇的径向外侧的内壳体元件; 用于在所述涡轮机风扇的径向外侧配置的外壳元件; 保持唇缘，其设置在所述内壳体元件的一部分的径向内侧; 以及分隔件，其在所述内壳体元件和外壳体元件之间延伸并且被布置成将所述内壳元件的一部分推靠在所述唇缘上。 分离器被布置在内外壳元件之间的压缩中，以将内壳元件的一部分推靠在唇缘上。 分隔件布置成接合内壳体元件的易碎区域，使得易碎区域被构造成响应于满足预定条件的冲击而断裂，允许内壳体元件径向向外移动曝光特征以改善释放风扇的保持 刀。

公开(公告)号：US20150218961A1

公开(公告)日：2015-08-06

申请号：US14593418

申请日：2015-01-09

Applicant: ROLLS-ROYCE PLC

Inventor： Dale Edward EVANS ,  Mickael DROZDZ ,  David Laker CHRISTMAS

IPC: F01D21/04

CPC classification number: F01D21/045 ,  F01D25/243 ,  F05D2220/36 ,  F05D2240/14 ,  Y02T50/672

Abstract: Fan containment system fitting around array of radially extending fan blades mounted on a hub in an axial gas turbine engine. The fan containment system includes a fan case having an annular casing element for encircling array of fan blades and a hook projecting in radially inward direction from the annular casing element and positioned axially forward of an array of fan blades when the fan containment system fitted around fan blades. An annular fan track liner positioned substantially coaxial to the annular casing element. Clamping arrangement connects fan track liner to the hook. Clamping arrangement is configured under the condition that a fan blade impacts the fan track liner, the clamping arrangement releases connection between the hook and a portion of fan track liner so that a portion of the fan track liner can move towards the annular casing element to encourage the fan blade to impact the hook.

Abstract translation: 围绕安装在轴向燃气涡轮发动机的轮毂上的径向延伸的风扇叶片阵列的风扇容纳系统。 风扇容纳系统包括风扇壳体，其具有用于环绕风扇叶片的环形壳体元件和从环形壳体元件沿径向向内的方向突出并且当风扇容纳系统安装在风扇附近时位于风扇叶片阵列的轴向前方的环形壳体元件 刀片。 环形风扇轨道衬套，其定位成基本上与环形壳体元件同轴。 夹紧装置将风扇履带板与挂钩相连。 夹紧装置在风扇叶片撞击风扇履带衬板的情况下被配置，夹紧装置释放钩和一部分风扇履带衬板之间的连接，使得风扇履带衬板的一部分能够朝向环形壳体元件移动以鼓励 风扇叶片冲击钩子。