EP 2853689 A1 20150401 - Arrangement of cooling channels in a turbine blade
Title (en)
Arrangement of cooling channels in a turbine blade
Title (de)
Anordnung von Kühlkanälen in einer Turbinenschaufel
Title (fr)
Agencement de canaux de refroidissement dans une aube de turbine
Publication
Application
Priority
EP 13185944 A 20130925
Abstract (en)
[origin: WO2015044007A1] The invention relates to an arrangement (1) of a plurality of cooling channels (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) within a turbine blade for conveying cooling fluid, wherein the cooling channels (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) lead through the turbine blade, which comprises a blade root (2), a blade tip (4), a leading edge (3), and a trailing edge (5), to one or more cooling-fluid outlets (18, 19a-19g), wherein the cooling channels (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) are connected to each other at selected locations (8, 10) and extend separately from each other in other regions in such a way that, in the event of damage to the turbine blade in the region of one cooling channel (6, 7, 9, 11, 12, 13, 14, 15, 16, 17), the cooling by the other cooling channels (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) remains largely unimpaired, wherein at least one cooling channel begins in a region (8) near the leading edge (3) and near the blade root (2) and leads as a diagonal channel (9) through the turbine blade into a region (10) near the trailing edge (5) and near the blade tip (4).
Abstract (de)
Die Erfindung betrifft eine Anordnung (1) von mehreren Kühlkanälen (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) innerhalb einer Turbinenschaufel zur Förderung von Kühlfluid, wobei die Kühlkanäle (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) durch die Turbinenschaufel, welche einen Schaufelfuß (2), eine Schaufelblattspitze (4), eine Eintrittskante (3) und eine Austrittskante (5) aufweist, zu einem oder mehreren Kühlfluidauslässen (18, 19a-19g) führen, wobei die Kühlkanäle (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) so an ausgewählten Stellen (8, 10) miteinander verbunden sind und in anderen Bereichen voneinander getrennt verlaufen, dass bei einer Beschädigung der Turbinenschaufel im Bereich eines Kühlkanals (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) die Kühlung durch die anderen Kühlkanäle (6, 7, 9, 11, 12, 13, 14, 15, 16, 17) weitgehend unbeeinträchtigt bleibt.
IPC 8 full level
F01D 5/18 (2006.01)
CPC (source: EP US)
F01D 5/187 (2013.01 - EP US); F01D 5/188 (2013.01 - EP US); F05D 2220/32 (2013.01 - US); F05D 2260/201 (2013.01 - EP US); F05D 2260/202 (2013.01 - US)
Citation (search report)
- [XYI] US 6382914 B1 20020507 - TRESSLER JUDD DODGE [US]
- [X] JP S59231103 A 19841225 - TOSHIBA KK
- [X] FR 1209752 A 19600303 - WIGGIN & CO LTD HENRY
- [X] GB 827289 A 19600203 - WIGGIN & CO LTD HENRY
- [X] US 3014693 A 19611226 - HORNE CAMPBELL C
- [Y] EP 1471210 A1 20041027 - SIEMENS AG [DE]
- [Y] US 2005084370 A1 20050421 - GROSS HEINZ-JURGEN [DE]
- [Y] US 5536143 A 19960716 - JACALA ARIEL [US], et al
- [Y] EP 0939196 A2 19990901 - TOSHIBA KK [JP]
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 2853689 A1 20150401; CN 105593471 A 20160518; EP 3022397 A1 20160525; JP 2016533446 A 20161027; US 2016208622 A1 20160721; WO 2015044007 A1 20150402
DOCDB simple family (application)
EP 13185944 A 20130925; CN 201480052859 A 20140917; EP 14772098 A 20140917; EP 2014069747 W 20140917; JP 2016516886 A 20140917; US 201415023392 A 20140917