Global Patent Index - EP 2024737 A1

EP 2024737 A1 2009-02-18 - COMPONENT FOR A THERMAL STRESS, IN PARTICULAR A TURBINE BLADE

Title (en)

COMPONENT FOR A THERMAL STRESS, IN PARTICULAR A TURBINE BLADE

Title (de)

BAUTEIL FÜR EINE THERMISCHE BEANSPRUCHUNG, INSBESONDERE TURBINENSCHAUFEL

Title (fr)

COMPOSANT POUR UNE CHARGE THERMIQUE, EN PARTICULIER UNE PALE DE TURBINE

Publication

EP 2024737 A1 (DE)

Application

EP 07729540 A

Priority

  • EP 2007055114 W
  • DE 102006026207 A

Abstract (en)

[origin: WO2007138018A1] The subject matter of the invention relates to a component (11) which displays a coating (21) on a component substrate (18). The coating can be part of a larger coating system. The invention provides that the coating (21) is to be used as an indicator for thermal stress of the component (11). The coating (21) is composed of two layers (26a, 26b), for example, and isolated from the rest of the component (11) by a diffusion barrier layer (25). The temperature dependent diffusion processes running between the layers (26a, 26b) can be evaluated by appropriate methods (for example, by creating an eddy current system) and advantageously make it possible to draw conclusions about the thermal stress of the component. The coating (21), according to the invention, can be used, for example, with turbine blades.

IPC 8 full level (invention and additional information)

G01N 27/90 (2006.01); F01D 5/28 (2006.01)

CPC (invention and additional information)

G01N 27/9006 (2013.01); F01D 5/288 (2013.01); F05D 2220/32 (2013.01); F05D 2230/90 (2013.01); F05D 2260/80 (2013.01); F05D 2270/303 (2013.01); F05D 2270/3032 (2013.01); F05D 2300/611 (2013.01)

Citation (search report)

See references of WO 2007138018A1

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 LV MC MT NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK RS

EPO simple patent family

DE 102006026207 A1 20071206; CN 101495859 A 20090729; EP 2024737 A1 20090218; WO 2007138018 A1 20071206

INPADOC legal status


2010-02-03 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20090806

2009-04-29 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20090326

2009-02-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20081112

2009-02-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

2009-02-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL BA HR MK RS