公开(公告)号：EP1443180A3

公开(公告)日：2006-06-28

申请号：EP04250460.5

申请日：2004-01-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Forrester, James Michael ,  Grant, Robert Russell ,  Higgins, Craig William ,  Clausing, Emily Anne ,  Cargill, John Gregory

IPC: F01D5/30

CPC classification number: F01D5/3092 ,  F05D2250/00

Abstract: A gas turbine engine blade root shim includes a dovetail shim portion with a dovetail shape and a longitudinally extending substantially flat base (52) and distal first and second longitudinally spaced apart forward and aft ends (72 and 76). Transversely spaced apart first and second walls (54 and 64) extend upwardly from the base (52) which includes at least two longitudinally extending elongated base apertures (90). Each of the base apertures (90) includes a main region (92) and longitudinally spaced apart rounded end regions (94). Dog-bone-shaped base apertures or rounded end base apertures having semi-circular rounded end regions may be used. The shim is designed for a blade dovetail root with a root slot formed in a bottom of the dovetail root. The dovetail shim portion with the dovetail shape substantially conforms to at least a portion of a cross-sectional dovetail shape of the dovetail root through the root slot. The base (52) is disposed within the root slot.

公开(公告)号：EP1443180B1

公开(公告)日：2008-10-01

申请号：EP04250460.5

申请日：2004-01-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Forrester, James Michael ,  Grant, Robert Russell ,  Higgins, Craig William ,  Clausing, Emily Anne ,  Cargill, John Gregory

IPC: F01D5/30

CPC classification number: F01D5/3092 ,  F05D2250/00

公开(公告)号：EP1443180A2

公开(公告)日：2004-08-04

申请号：EP04250460.5

申请日：2004-01-28

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Forrester, James Michael ,  Grant, Robert Russell ,  Higgins, Craig William ,  Clausing, Emily Anne ,  Cargill, John Gregory

IPC: F01D5/30

CPC classification number: F01D5/3092 ,  F05D2250/00

Abstract: A gas turbine engine blade root shim includes a dovetail shim portion with a dovetail shape and a longitudinally extending substantially flat base (52) and distal first and second longitudinally spaced apart forward and aft ends (72 and 76). Transversely spaced apart first and second walls (54 and 64) extend upwardly from the base (52) which includes at least two longitudinally extending elongated base apertures (90). Each of the base apertures (90) includes a main region (92) and longitudinally spaced apart rounded end regions (94). Dog-bone-shaped base apertures or rounded end base apertures having semi-circular rounded end regions may be used. The shim is designed for a blade dovetail root with a root slot formed in a bottom of the dovetail root. The dovetail shim portion with the dovetail shape substantially conforms to at least a portion of a cross-sectional dovetail shape of the dovetail root through the root slot. The base (52) is disposed within the root slot.

Abstract translation: 燃气涡轮发动机叶片根垫片包括燕尾形垫片部分，其具有燕尾形状和纵向延伸的基本上平坦的基部（52）和远侧的第一和第二纵向间隔开的前后端部（72和76）。 横向间隔开的第一和第二壁（54和64）从基部（52）向上延伸，其包括至少两个纵向延伸的细长基部孔（90）。 每个基座孔（90）包括主区域（92）和纵向间隔开的圆形端部区域（94）。 可以使用具有半圆形圆形端部区域的狗骨形基部孔或圆形端部基部孔。 垫片设计用于具有形成在燕尾根底部的根槽的叶片燕尾根。 具有燕尾形状的燕尾形垫片部分基本上符合燕尾根的横截面燕尾形状的至少一部分，通过根槽。 基部（52）设置在根槽内。