EP 2313615 B1 20160323 - BLADE ARRANGEMENT OF A GAS TURBINE
Title (en)
BLADE ARRANGEMENT OF A GAS TURBINE
Title (de)
SCHAUFELANORDNUNG EINER GASTURBINE
Title (fr)
DISPOSITIF D'AUBES D'UNE TURBINE À GAZ
Publication
Application
Priority
- EP 2009060387 W 20090811
- CH 12852008 A 20080815
Abstract (en)
[origin: WO2010018174A1] The invention relates to the blade arrangement (30) of a gas turbine with at least one blade (11), which protrudes in the radial direction into a hot gas channel (13) arranged concentrically in relation to an axis (16) and ends in a blade tip (27), which lies opposite, with a clearance (25), a heat shield (12) bounding the hot gas channel (13), wherein the blade (11) and the heat shield (12) are movable in relation to each other in the circumferential direction, and the blade tip (27) and the heat shield (12) are covered with layers (22, 23, 24) that make it possible for the blade tip (27) to grind into the heat shield (12) in a specifically intended manner. With such a blade arrangement, a reduction in the clearance by allowing grinding-in is achieved in a simplified way by the heat shield (12) having an exterior abradable layer of a porous thermal barrier coating (23), and by the blade tip (27) being provided with a homogeneous metallic covering layer (24).
IPC 8 full level
F01D 11/12 (2006.01)
CPC (source: EP US)
F01D 5/288 (2013.01 - US); F01D 11/122 (2013.01 - EP US); F01D 11/14 (2013.01 - US)
Citation (examination)
US 2003175116 A1 20030918 - LE BIEZ PHILIPPE [FR], et al
Citation (opposition)
Opponent : siemens aktiengesellschaft
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- GB 2226050 A 19900620 - UNITED TECHNOLOGIES CORP [US]
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- US 5780171 A 19980714 - NISSLEY DAVID M [US], et al
- US 2003175116 A1 20030918 - LE BIEZ PHILIPPE [FR], et al
- EP 1085171 B1 20100324 - GEN ELECTRIC [US]
- US 6149389 A 20001121 - HENNIES HANS-HENNING [DE], et al
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- US 5733102 A 19980331 - LEE CHING-PANG [US], et al
- US 5794338 A 19980818 - BOWDEN JR JOSEPH H [US], et al
- EP 0844368 B1 20050202 - UNITED TECHNOLOGIES CORP [US]
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- EP 1890010 A2 20080220 - UNITED TECHNOLOGIES CORP [US]
- DE 69704703 T2 20020131 - INTERTURBINE SCHIPHOL NV [NL]
- DE 19842417 A1 20000330 - COATEC GES FUER OBERFLAECHENVE [DE]
- EP 1865150 A1 20071212 - SULZER METCO US INC [US]
- US 2004137259 A1 20040715 - PABLA SURINDER SINGH [US], et al
- US 2003194323 A1 20031016 - FERNIHOUGH JOHN [CH], et al
- EP 0869259 A2 19981007 - GEN ELECTRIC [US]
- EP 1258598 A2 20021120 - GEN ELECTRIC [US]
- LANGLADE-BOMBA ET AL: "?Wear mechanism of MCrAIY abradable plasma-sprayed coatings", PROC. INT . THERMAL SPRAY CONF., vol. 1, 1998, pages 293 - 298, XP055337768
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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)
WO 2010018174 A1 20100218; CH 699312 A1 20100215; EP 2313615 A1 20110427; EP 2313615 B1 20160323; EP 2313615 B2 20230927; US 2011171039 A1 20110714
DOCDB simple family (application)
EP 2009060387 W 20090811; CH 12852008 A 20080815; EP 09781705 A 20090811; US 201113024545 A 20110210