EP 1605136 A2 20051214 - Cooled rotor blade
Title (en)
Cooled rotor blade
Title (de)
Gekühlte Rotorschaufel
Title (fr)
Aube de rotor refroidie
Publication
Application
Priority
US 85504904 A 20040527
Abstract (en)
A rotor blade (14) is provided that includes a root (20) and a hollow airfoil (22). The hollow airfoil has a cavity, a leading edge (32), and a tip (30). An internal passage configuration is disposed within the cavity that includes a first radial passage (92), a second radial passage (94), and a rib (96) disposed between the passages (92,94). The passages (92,94) and the rib (96) are contiguous with a tip endwall (98). The first radial passage (92) is disposed contiguous with the leading edge (32). A plurality of crossover apertures (74) are disposed in the rib (96). One of the crossover apertures (100) is disposed flush with the tip endwall (98). A conduit (42) is disposed within the root (20) that is operable to permit airflow through the root and into the passages. In some embodiments, an aperture (62,76) is disposed within the tip endwall (98) aligned with the first radial passage (92).
IPC 1-7
IPC 8 full level
B63H 1/14 (2006.01); F01D 5/18 (2006.01); F01D 5/20 (2006.01); F02C 7/18 (2006.01)
CPC (source: EP US)
F01D 5/187 (2013.01 - EP US); F01D 5/20 (2013.01 - EP US); F05D 2260/202 (2013.01 - EP US)
Citation (applicant)
- EP 0899425 A2 19990303 - ASEA BROWN BOVERI [CH]
- EP 0896127 A2 19990210 - UNITED TECHNOLOGIES CORP [US]
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 1605136 A2 20051214; EP 1605136 A3 20090121; EP 1605136 B1 20120815; JP 2005337256 A 20051208; US 2005265839 A1 20051201
DOCDB simple family (application)
EP 05253258 A 20050527; JP 2005154977 A 20050527; US 85504904 A 20040527