EP 0892149 B1 20030122 - Cooling system for the leading edge of a hollow blade for a gas turbine engine
Title (en)
Cooling system for the leading edge of a hollow blade for a gas turbine engine
Title (de)
Kühlsystem für den Vorderkantenbereich einer hohlen Gasturbinenschaufel
Title (fr)
Système de refroidissement pour le bord d'attac d'une aube creuse pour turbine à gaz
Publication
Application
Priority
EP 97810474 A 19970714
Abstract (en)
[origin: EP0892149A1] The arrangement comprises internal cooling fins (9) which run from the web radially inwards across the flanks, towards and around the leading edge (5). The fins are alternately on the high-pressure (7) and the low-pressure (6) flanks, and overlap only in the region of the leading edge. The fin height increases from zero at the flank/web intersection to a height which varies along its length, such that the ratio of the local height (h) of the fin to the local width (H) of the cooling passage is constant over the length of the fin. Fins nearer the blade root are taller than those further from the root. The distance between adjacent fins can vary over the length of the blade.
IPC 1-7
IPC 8 full level
F01D 5/18 (2006.01)
CPC (source: EP US)
F01D 5/187 (2013.01 - EP US); F05D 2260/22141 (2013.01 - EP US)
Designated contracting state (EPC)
DE
DOCDB simple family (publication)
EP 0892149 A1 19990120; EP 0892149 B1 20030122; DE 59709195 D1 20030227; US 6068445 A 20000530
DOCDB simple family (application)
EP 97810474 A 19970714; DE 59709195 T 19970714; US 11170698 A 19980708