Global Patent Index - EP 2620593 A1

EP 2620593 A1 20130731 - Turbine airfoil and corresponding method of cooling

Title (en)

Turbine airfoil and corresponding method of cooling

Title (de)

Turbinenschaufel und zugehöriges Kühlverfahren

Title (fr)

Aube de turbine et procédé associé de refroidissement

Publication

EP 2620593 A1 20130731 (EN)

Application

EP 13152580 A 20130124

Priority

US 201213359691 A 20120127

Abstract (en)

A turbine airfoil includes a blade (10) having a leading (16) and trailing (18) edges and an internal cooling circuit (20), and a plurality of film holes (22) extending between the internal cooling circuit (20) and an exterior of the blade (10). The plurality of film holes (22) are shaped to generate a swirling flow exiting the film holes (22) adjacent the leading edge (16) to thereby enhance local convection and provide an insulating barrier to gaspath flow. A corresponding of film cooling a turbine airfoil is also provided.

IPC 8 full level

F01D 5/18 (2006.01)

CPC (source: EP US)

F01D 5/187 (2013.01 - EP US); F05D 2240/303 (2013.01 - EP US); F05D 2250/25 (2013.01 - EP US); F05D 2260/202 (2013.01 - EP US)

Citation (search report)

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 2620593 A1 20130731; CN 103225517 A 20130731; JP 2013155733 A 20130815; RU 2013103432 A 20140727; US 2013195650 A1 20130801

DOCDB simple family (application)

EP 13152580 A 20130124; CN 201310029642 A 20130125; JP 2013010707 A 20130124; RU 2013103432 A 20130125; US 201213359691 A 20120127