EP 2784268 A1 20141001 - A turbine blade outer air seal comprising a ceramic coating on the stator and the rotor respectively.
Title (en)
A turbine blade outer air seal comprising a ceramic coating on the stator and the rotor respectively.
Title (de)
Eine Turbinenschaufelaussendichtung bestehend aus jeweils einer keramischen Schicht auf dem Stator und dem Rotor.
Title (fr)
Etanchéité extérieur d'une aube de turbine comprenant un revêtement céramique sur le stator et le rotor respectivement
Publication
Application
Priority
EP 13161673 A 20130328
Abstract (en)
Turbomachine (6) comprises a rotor and a stator. A sealing (1) for reducing the radial gap is arranged in at least one radial gap between the rotor and the stator. The sealing comprises two opposite coating. A first coating is applied on a stator section (4), which is bounding the radial gap in a radially outward manner, and the second coating (40) is applied to a rotor section (2), which is bounding the radial gap in a radially inward manner. The coatings are made of ceramic powder with particle size of less than 1 mm. Turbomachine (6) comprises a rotor and a stator. A sealing (1) for reducing the radial gap is arranged in at least one radial gap between the rotor and the stator. The sealing comprises two opposite coating. A first coating is applied on a stator section (4), which is bounding the radial gap in a radially outward manner, and the second coating (40) is applied to a rotor section (2), which is bounding the radial gap in a radially inward manner. The coatings are made of ceramic powder with particle size of less than 1 mm or powder-based individual layers with outer layer having a higher ceramic content than the section, which is near to rotor- or stator section of the base layer.
Abstract (de)
Offenbart ist eine Strömungsmaschine (6) mit zumindest einer Radialspaltdichtung 1), die zumindest zwei gegenüberliegende Keramikbeschichtungen (40, 2) aufweist, die jeweils aus einem Keramikpulver aufgebaut sind, dessen Partikelgröße kleiner als 1,0 µm ist, und eine Strömungsmaschine (6) mit zumindest einer Radialspaltdichtung (1), wobei die Beschichtungen aus pulverbasierten Einzelschichten aufgebaut sind, deren äußere Schicht einen höheren Keramikanteil als eine rotor- bzw. statorabschnittsnahe Grundschicht aufweist, wobei die Partikelgröße des Pulvermaterials kleiner als 1,0 µm ist.
IPC 8 full level
F01D 11/12 (2006.01); C23C 28/00 (2006.01); F01D 5/00 (2006.01); F01D 5/20 (2006.01); F01D 5/28 (2006.01); F01D 11/08 (2006.01)
CPC (source: EP US)
F01D 5/005 (2013.01 - EP US); F01D 5/20 (2013.01 - EP US); F01D 5/284 (2013.01 - EP US); F01D 5/288 (2013.01 - EP US); F01D 11/08 (2013.01 - US); F01D 11/122 (2013.01 - EP US); F05D 2300/611 (2013.01 - US)
Citation (search report)
- [Y] EP 2540973 A1 20130102 - SIEMENS AG [DE]
- [Y] EP 2009141 A2 20081231 - UNITED TECHNOLOGIES CORP [US]
- [Y] EP 1739204 A2 20070103 - GEN ELECTRIC [US]
- [Y] EP 0292250 A1 19881123 - UNION CARBIDE CORP [US]
- [A] DE 10225532 C1 20031204 - MTU AERO ENGINES GMBH [DE]
- [A] DE 102011081323 B3 20120621 - SIEMENS AG [DE]
- [A] DE 102009012945 A1 20100916 - MTU AERO ENGINES GMBH [DE]
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2784268 A1 20141001; US 2014294570 A1 20141002; US 9605554 B2 20170328
DOCDB simple family (application)
EP 13161673 A 20130328; US 201414228471 A 20140328