Title:
補完冷却式タービンノズル
Document Type and Number:
Japanese Patent JP4728588
Kind Code:
B2
Abstract:
A turbine nozzle (26) includes outer and inner bands (30,32) integrally joined to a vane (34) having a three-pass serpentine flow circuit between opposite pressure and suction sidewalls (36,38). The outer band includes an inlet (54) for channeling cooling air into a first channel (44) of the circuit located behind a leading edge (40) of the vane. A first outlet (56) is disposed in the inner band at the bottom of the first channel where it joins the second channel (46) of the circuit. A second outlet (58) is also disposed in the inner band at the bottom of a third channel (48) of the circuit which is disposed in flow communication with the second channel. The first channel (44) behind the leading edge (40) is smooth except for corresponding rows of first and second turbulators (62,64) spaced laterally apart. The first turbulators (62) bridge the pressure and suction sidewalls directly behind the leading edge, and the second turbulators (64) are disposed behind the suction sidewall.
Inventors:
Baolan Sea
Robert Francis Manning
Randall Brent Luedbeck
Niger Bryan Thomas Langley
Robert Francis Manning
Randall Brent Luedbeck
Niger Bryan Thomas Langley
Application Number:
JP2004118457A
Publication Date:
July 20, 2011
Filing Date:
April 14, 2004
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
F01D9/02; F01D5/08; F01D5/18; F01D9/04; F01D25/12; F02C7/18
Domestic Patent References:
| JP2003083001A | ||||
| JP61001805A | ||||
| JP10280905A |
Foreign References:
| US3369792 |
Attorney, Agent or Firm:
Arakawa Satoshi
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa
Hirokazu Ogura
Nobukazu Ito
Toshihisa Kurokawa