EP 3767074 A1 20210120 - TURBINE AIRFOIL COMPONENT AND COMPONENTS

Title (en)

TURBINE AIRFOIL COMPONENT AND COMPONENTS

Title (de)

TURBINENSCHAUFELBAUTEIL UND BAUTEILE

Title (fr)

COMPOSANT D'AUBE DE TURBINE ET COMPOSANTS

Publication

EP 3767074 A1 20210120 (EN)

Application

EP 20188996 A 20140205

Priority

US 201313760107 A 20130206
EP 14706400 A 20140205
US 2014014858 W 20140205

Abstract (en)

A cooling channel (36, 36B, 63-66) cools inner surfaces (48, 50) of exterior walls (41, 43) of a component (20, 60). Interior side surfaces (52, 54) of the channel converge to a waist (W2), forming an hourglass shaped transverse profile (46). The inner surfaces (48, 50) may have this (44) aligned with the coolant flow (22). The fins may have a transverse profile (56A, 56B) highest at mid-width of the inner surfaces (48, 50). Turbulators (92) may be provided on the side surfaces (52, 54) of the channel, and may urge the coolant flow toward the inner surfaces (48, 50). Each turbulator (92) may have a peak (97) that defines the waist of the cooling channel. Each turbulator may have a convex upstream side (93). Hiese elements increase coolant flow in the corners (C) of the channel to more uniformly and efficiently cool the exterior walls (41, 43).

IPC 8 full level

F01D 5/18 (2006.01)

CPC (source: EP RU)

F01D 5/187 (2013.01 - EP); F01D 5/18 (2013.01 - RU); F05D 2250/131 (2013.01 - EP); F05D 2260/2214 (2013.01 - EP); F05D 2260/22141 (2013.01 - EP)

Citation (applicant)

US 98555311 A 20110106
US 7141812 B2 20061128 - APPLEBY MICHAEL [US], et al
US 7410606 B2 20080812 - APPLEBY MICHAEL P [US], et al
US 7411204 B2 20080812 - APPLEBY MICHAEL [US], et al

Citation (search report)

[XAY] US 2012177503 A1 20120712 - LEE CHING-PANG [US], et al
[XAY] EP 2258925 A2 20101208 - ROLLS ROYCE PLC [GB]
[XAY] EP 1630353 A2 20060301 - ROLLS ROYCE PLC [GB]
[XAY] US 6837683 B2 20050104 - DAILEY GEOFFREY M [GB]

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

DOCDB simple family (publication)

WO 2014123994 A1 20140814; CN 105829654 A 20160803; CN 105829654 B 20180511; EP 2954169 A1 20151216; EP 2954169 B1 20200805; EP 3767074 A1 20210120; EP 3767074 B1 20230329; JP 2016510380 A 20160407; JP 6120995 B2 20170426; RU 2015132763 A 20170315; RU 2629790 C2 20170904

DOCDB simple family (application)

US 2014014858 W 20140205; CN 201480007603 A 20140205; EP 14706400 A 20140205; EP 20188996 A 20140205; JP 2015557025 A 20140205; RU 2015132763 A 20140205