EP 1644614 B1 20130828 - 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 2004051309 W 20040630
- DE 10331635 A 20030712
Abstract (en)
[origin: WO2005005785A1] The invention relates to a cooled blade (10) for a gas turbine. Said blade comprises a paddle (11) leading from a blade root (12) and a blade shaft (25), said paddle having a leading edge (19) and a trailing edge (20), in addition to a plurality of radially extending cooling channels (13, 14, 15) in its interior that are fluidically connected in sequence. A first cooling channel (13) is traversed along the leading edge (19) and a second cooling channel (15) is traversed along the trailing edge (20), from the blade root (12) to the tip of the paddle (11), by a primary stream of coolant and the outlet of the first cooling channel (13) is connected to the inlet of the second cooling channel (15) via a first deviation zone (17), a third cooling channel (14) that is situated between the first and the second cooling channels (13, 15) and a second deviation zone (18). The blade is provided with elements (22, 23, 24), by means of which a supplementary stream of cooler coolant is added externally to the heated primary stream of coolant that flows from the third cooling channel (14) into the second cooling channel (15). Bores in the vicinity of the blade root constitute said elements.
IPC 8 full level
F01D 5/18 (2006.01); F01D 25/12 (2006.01)
CPC (source: EP KR US)
F01D 5/18 (2013.01 - KR); F01D 5/187 (2013.01 - EP US); F01D 25/08 (2013.01 - KR); F01D 25/12 (2013.01 - EP KR US); F05D 2250/185 (2013.01 - EP US); F05D 2260/211 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2005005785 A1 20050120; AR 046072 A1 20051123; CA 2531754 A1 20050120; CA 2531754 C 20121009; CN 1849439 A 20061018; CN 1849439 B 20101208; DE 10331635 A1 20050203; DE 10331635 B4 20140213; EP 1644614 A1 20060412; EP 1644614 B1 20130828; ES 2436750 T3 20140107; KR 101146158 B1 20120525; KR 20060030114 A 20060407; KR 20110134505 A 20111214; MX PA06000402 A 20060405; TW 200508478 A 20050301; TW I338075 B 20110301; US 2006177310 A1 20060810; US 7264445 B2 20070904
DOCDB simple family (application)
EP 2004051309 W 20040630; AR P040102433 A 20040708; CA 2531754 A 20040630; CN 200480026034 A 20040630; DE 10331635 A 20030712; EP 04766104 A 20040630; ES 04766104 T 20040630; KR 20067000708 A 20040630; KR 20117025895 A 20040630; MX PA06000402 A 20040630; TW 93120792 A 20040712; US 33026806 A 20060112