Global Patent Index - EP 1101901 A1

EP 1101901 A1 2001-05-23 - Turbine blade and method of manufacture for the same

Title (en)

Turbine blade and method of manufacture for the same

Title (de)

Turbinenschaufel sowie Verfahren zur Herstellung einer Turbinenschaufel

Title (fr)

Aube de turbine et sa méthode de production

Publication

EP 1101901 A1 (DE)

Application

EP 99122757 A

Priority

EP 99122757 A

Abstract (en)

The aim of the invention is to produce a turbine blade (1), comprising an outer wall (4), surrounding a hollow cavity, through which a cooling fluid (6) flows and which has an increased life expectancy, even under heavy loading and is simple to produce. The aim of the invention is achieved, whereby the thickness (8) of the outer wall (4), at least over an extent of the blade leading-edge region (7), is such that, at least in pre-determined areas of the external wall (4), pre-determined temperature thresholds (TM) and/or pre-determined temperature gradients ( DELTA TM) are not exceeded.

Abstract (de)

Um eine Turbinenschaufel (1), die eine einen Hohlraum umgebende Außenwand (4) hat, der von einem kühlfluid (6) durchströmt ist, zu erhalten, wobei sie eine verlängerte Lebensdauer auch unter sehr hohen Belastungen besitzt und mit geringem Aufwand herzustellen ist, wird vorgeschlagen, daß die Dicke (8) der Außenwand (4) zumindest über einen Umfang des Schaufelblattbereichs (7) so eingestellt ist, daß zumindest an vorbestimmten Stellen der Außenwand (4) vorbestimmte Temperaturschwellenwerte (TM) und/oder vorbestimmte Temperaturgradienten (TM) nicht überschritten werden. <IMAGE>

IPC 1-7 (main, further and additional classification)

F01D 5/18

IPC 8 full level (invention and additional information)

F01D 5/18 (2006.01)

CPC (invention and additional information)

F01D 5/187 (2013.01); F05D 2260/2322 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1101901 A1 20010523; WO 0136791 A1 20010525

INPADOC legal status


2002-10-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20011124

2002-03-28 [REG DE 8566] DESIGNATED COUNTRY DE NOT LONGER VALID

2002-02-20 [AKX] PAYMENT OF DESIGNATION FEES

2001-05-23 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-05-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI