EP 2414640 B1 20200527 - BLADE FOR A GAS TURBINE
Title (en)
BLADE FOR A GAS TURBINE
Title (de)
SCHAUFEL FÜR EINE GASTURBINE
Title (fr)
AUBE POUR UNE TURBINE À GAZ
Publication
Application
Priority
- EP 2010052867 W 20100305
- CH 5022009 A 20090330
Abstract (en)
[origin: WO2010112299A1] A blade (10) for a gas turbine comprises an airfoil (11), at the top end of which a shroud segment is disposed, wherein the shroud segment (12) together with the shroud segments of the other blades of a blade row forms a peripheral shroud delimiting the hot gas duct of the gas turbine, and wherein the shroud segment (12) is provided with side rails (16, 17) running along the side edge and protruding upward in order to improve the sealing effect with respect to the hot gas duct on the sides on which said segment abuts the adjacent shroud segments of the shroud. In such a blade, cooling in the area of the side rails (16, 17) is improved in that in the side rails (16, 17) slots (23, 24) are disposed, which run in parallel to the rails and are open toward the top and through which cooling air fed over the shroud segment (12) from the inside of the airfoil (11) escapes into the space above the shroud segment (12).
IPC 8 full level
F01D 5/22 (2006.01)
CPC (source: EP US)
F01D 5/225 (2013.01 - EP US); F05D 2240/81 (2013.01 - EP US); F05D 2260/202 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
CH 700686 A1 20100930; AU 2010230482 A1 20111013; AU 2010230482 B2 20141204; EP 2414640 A1 20120208; EP 2414640 B1 20200527; RU 2011143766 A 20130510; RU 2543641 C2 20150310; US 2012070309 A1 20120322; US 9464529 B2 20161011; WO 2010112299 A1 20101007
DOCDB simple family (application)
CH 5022009 A 20090330; AU 2010230482 A 20100305; EP 10706671 A 20100305; EP 2010052867 W 20100305; RU 2011143766 A 20100305; US 201113245707 A 20110926