EP 1709298 B1 20151111 - COOLED BLADE FOR A GAS TURBINE
Title (en)
COOLED BLADE FOR A GAS TURBINE
Title (de)
GEKÜHLTE SCHAUFEL FÜR EINE GASTURBINE
Title (fr)
AUBE REFROIDIE POUR UNE TURBINE A GAZ
Publication
Application
Priority
- EP 2005050137 W 20050114
- DE 102004002327 A 20040116
Abstract (en)
[origin: WO2005068783A1] The invention relates to a cooled blade (10) for a gas turbine, comprising a blade vane (11) which extends from the foot of a blade (12) and a blade shaft (25), and which comprises a front edge (19) and a rear edge (20), in addition to a plurality of cooling channels (13, 14, 15), which are disposed within the blade vane (11), extending in a radial direction and arranged in a successive manner in the direction of flow. A first cooling channel (13) disposed along the front edge (19) and a second cooling channel (15) disposed along the rear edge (20), extending from the foot of a blade (12) to the tip of the blade vane (11), are cross-flown by a main flow of a cooling liquid. The inlet of the first cooling channel (13) is placed in contact with a main cooling inlet (16) and the outlet of the first cooling channel (13) is placed in contact with the inlet of the second cooling channel (15) via of a first deviation area (17), a third cooling channel (14) which is arranged between the first and the second cooling channel (13, 15), and a second deviation area (18). First means (23) are provided, said means enabling an additional flow of a cool cooling medium to be added, from the outside, to the main heated flow of the cooling medium, from the third cooling channel (14) and penetrating into the second cooling channel (15). The aim of the invention is to is to produce said blade in a particularly simple manner by virtue of the fact that the first means comprise a bore hole (23) extending from the main cooling inlet (16) to the second deviation area (18).
IPC 8 full level
CPC (source: EP US)
F01D 5/081 (2013.01 - EP US); F01D 5/187 (2013.01 - EP US); F05D 2250/50 (2013.01 - EP US); F05D 2260/205 (2013.01 - EP US); F05D 2260/221 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102004002327 A1 20050804; CN 100408812 C 20080806; CN 1910343 A 20070207; EP 1709298 A1 20061011; EP 1709298 B1 20151111; TW 200532096 A 20051001; TW I356870 B 20120121; US 2006292006 A1 20061228; US 7520724 B2 20090421; WO 2005068783 A1 20050728
DOCDB simple family (application)
DE 102004002327 A 20040116; CN 200580002333 A 20050114; EP 05701516 A 20050114; EP 2005050137 W 20050114; TW 94101211 A 20050114; US 48309106 A 20060710