EP 2230383 A1 20100922 - Blade for a gas turbine with cooled tip cap
Title (en)
Blade for a gas turbine with cooled tip cap
Title (de)
Schaufel für eine Gasturbine mit gekühlter Spitze
Title (fr)
Aube de turbine avec refroidissement de l'extrémité
Publication
Application
Priority
EP 09155437 A 20090318
Abstract (en)
A cooled blade (10) for a gas turbine comprising an airfoil section which extends in the radial direction of the turbine or in the longitudinal direction of the blade (10) between a platform and a blade tip (11) which is provided with a cap (33), which airfoil section (12) is bounded transversely with respect to the longitudinal direction by a leading edge and a trailing edge and has a pressure face (17) and a suction face (18), with cooling channels (19) extending in the radial direction between the platform and the blade tip (11) in the interior of the airfoil section, which cooling channels (19) can be acted upon by a cooling air flow from the platform (13). In the case of a blade (10) such as this, the blade tip is cooled better in that first cooling holes (25) for convection cooling are provided on the pressure face (17) of the blade (10), and second cooling holes (27) for film cooling are provided on the suction side (18) of the blade (10), through the cap (33) of the blade (10), in the blade tip (11) from the cooling channels (19), and distributed over the blade width.
IPC 8 full level
F01D 5/18 (2006.01)
CPC (source: EP US)
F01D 5/20 (2013.01 - EP US); F05D 2240/307 (2013.01 - EP US); F05D 2250/231 (2013.01 - EP US); F05D 2250/232 (2013.01 - EP US); F05D 2260/20 (2013.01 - EP US); F05D 2260/202 (2013.01 - EP US)
Citation (applicant)
- WO 2005068783 A1 20050728 - ALSTOM TECHNOLOGY LTD [CH], et al
- DE 19944923 A1 20010322 - ASEA BROWN BOVERI [CH]
Citation (search report)
- [X] EP 0684364 A1 19951129 - MITSUBISHI HEAVY IND LTD [JP]
- [X] US 2002197160 A1 20021226 - LIANG GEORGE [US]
- [X] US 2008118367 A1 20080522 - LIANG GEORGE [US], et al
- [A] US 2005111979 A1 20050526 - LIANG GEORGE [US]
- [A] EP 1059419 A1 20001213 - GEN ELECTRIC [US]
- [A] EP 0319758 A1 19890614 - GEN ELECTRIC [US]
- [A] US 2005042074 A1 20050224 - LIANG GEORGE [US]
- [A] US 6183199 B1 20010206 - BEECK ALEXANDER [DE], et al
- [A] EP 1621731 A1 20060201 - GEN ELECTRIC [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 TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
EP 2230383 A1 20100922; RU 2011141997 A 20130427; RU 2531712 C2 20141027; US 2012070308 A1 20120322; WO 2010108809 A1 20100930
DOCDB simple family (application)
EP 09155437 A 20090318; EP 2010053286 W 20100315; RU 2011141997 A 20100315; US 201113234592 A 20110916