公开(公告)号：US20160108931A1

公开(公告)日：2016-04-21

申请号：US14876113

申请日：2015-10-06

Applicant: ROLLS-ROYCE PLC

Inventor： Ning WANG ,  Ewan F. THOMPSON

IPC: F04D29/64 ,  F04D29/54 ,  F04D29/56 ,  F04D19/00

CPC classification number: F04D29/644 ,  F01D9/042 ,  F01D17/162 ,  F04D19/002 ,  F04D27/002 ,  F04D29/542 ,  F04D29/563 ,  F05D2250/13 ,  F05D2300/43

Abstract: The present invention provides a mounting arrangement for mounting a variable stator vane within a gas turbine engine. The mounting arrangement comprises an inner shroud having a radially- and circumferentially-extending slot and at least one insert which, in use, is retained within said slot. The or each insert has at least one bore for receiving a spindle portion of the variable stator vane. The at least one insert is formed of a plastics material and/or the slot and the at least one insert each have a respective axial cross section with a respective first width (axial dimension) which is greater than and radially inwards from a respective second width, the first width of the at least one insert being greater than the second width of the slot and there being a smooth transition between the respective first and second widths.

Abstract translation: 本发明提供一种用于将可变定子叶片安装在燃气涡轮发动机内的安装装置。 安装装置包括具有径向和周向延伸的狭槽的内部护罩和至少一个在使用中保持在所述狭槽内的插入件。 该或每个插入件具有至少一个用于容纳可变定子叶片的心轴部分的孔。 所述至少一个插入件由塑料材料和/或所述槽形成，并且所述至少一个插入件各自具有相应的轴向横截面，所述相应的轴向横截面具有相应的第一宽度（轴向尺寸），所述第一宽度（轴向尺寸）大于和径向向内， 所述至少一个插入件的第一宽度大于所述槽的第二宽度，并且在相应的第一和第二宽度之间具有平滑过渡。