Global Patent Index - EP 1614861 A1

EP 1614861 A1 20060111 - Turbine wheel comprising turbine blades having turbulators on the platform radially inner surface.

Title (en)

Turbine wheel comprising turbine blades having turbulators on the platform radially inner surface.

Title (de)

Schaufelrad einer Turbine mit einer Schaufel und mindestens einem Kühlkanal

Title (fr)

Roue de turbine comprenant des aubes de turbine avec turbulateurs sur la surface radiale interne de la plate-forme

Publication

EP 1614861 A1 20060111 (DE)

Application

EP 04016237 A 20040709

Priority

EP 04016237 A 20040709

Abstract (en)

The blade wheel of a turbine has at least one blade with its root (12) mounted on a disc, and at least one cooling passage is located between the wheel disc and blade root. A number of turbulators (26) is formed on at least one of the walls of the cooling passage and are designed in such a way that they increase the turbulence of a cooling fluid flowing through the cooling passage. The turbulators are formed on the underside (24) of the blade root platform (16). Independent claims are also included for the following: (A) a blade of a blade wheel of a turbine, especially a gas turbine, with turbulators on the underside of the blade root platform; and (B) a method for the manufacturing of a blade in which the turbulators can be formed in a working process forming the blade aerofoil.

IPC 8 full level

F01D 5/30 (2006.01); F01D 5/08 (2006.01); F01D 25/12 (2006.01)

CPC (source: EP US)

F01D 5/081 (2013.01 - EP US); F01D 5/30 (2013.01 - EP US); F01D 25/12 (2013.01 - EP US); F05D 2230/12 (2013.01 - EP US); F05D 2240/127 (2013.01 - EP US); F05D 2240/81 (2013.01 - EP US); F05D 2250/291 (2013.01 - EP US); F05D 2260/2212 (2013.01 - EP US); F05D 2260/22141 (2013.01 - EP US)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1614861 A1 20060111; AT E495347 T1 20110115; CN 101014752 A 20070808; CN 101014752 B 20110608; DE 502005010841 D1 20110224; EP 1766192 A1 20070328; EP 1766192 B1 20110112; ES 2358336 T3 20110509; JP 2008506061 A 20080228; JP 4637906 B2 20110223; PL 1766192 T3 20110630; US 2008267784 A1 20081030; US 7758309 B2 20100720; WO 2006005659 A1 20060119

DOCDB simple family (application)

EP 04016237 A 20040709; AT 05766734 T 20050613; CN 200580030007 A 20050613; DE 502005010841 T 20050613; EP 05766734 A 20050613; EP 2005052714 W 20050613; ES 05766734 T 20050613; JP 2007519759 A 20050613; PL 05766734 T 20050613; US 63201305 A 20050613