EP 1749970 B1 20150513 - Turbine airfoil platform extension for low buttress stress
Title (en)
Turbine airfoil platform extension for low buttress stress
Title (de)
Verlängerung der Plattform einer Turbinenschaufel mit einer niedrigen Spannung in seinem Stützpfeiler
Title (fr)
Extension de plateforme d'aube de turbine ayant une faible contrainte au niveau de son contrefort
Publication
Application
Priority
US 19716205 A 20050803
Abstract (en)
[origin: EP1749970A2] A blade (100) is provided for use in a gas turbine engine. The blade (100) has a platform (102), an airfoil portion (104) extending radially from a first side (106) of the platform (102), and an attachment portion (108) extending from a second or underside side (110) of the platform (102). The attachment portion (108) includes a buttress (116) which abuts the second side (110) of the platform (102). The blade is provided with additional material (140) on the second side (110) of the platform (102) for redistributing load away from the buttress (116).
IPC 8 full level
CPC (source: EP US)
F01D 5/147 (2013.01 - EP US); F01D 5/3007 (2013.01 - EP US); F05D 2240/80 (2013.01 - EP US); F05D 2250/70 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 1749970 A2 20070207; EP 1749970 A3 20100526; EP 1749970 B1 20150513; CN 1908379 A 20070207; JP 2007040295 A 20070215; SG 130114 A1 20070320; TW 200710319 A 20070316; US 2007031260 A1 20070208
DOCDB simple family (application)
EP 06252876 A 20060602; CN 200610088713 A 20060602; JP 2006147671 A 20060529; SG 2006052211 A 20060802; TW 95114575 A 20060424; US 19716205 A 20050803