Title:
GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2016/031475
Kind Code:
A1
Abstract:
An axial-direction passage (45), a forced vortex passage (46), a first blade array passage (47), and a second blade array passage (48) are formed in a rotor shaft (32) of a turbine (30). Cooling air from an air extraction port (16) of a compressor flows through the axial-direction passage (45) which extends in the axial direction (Da). 6The forced vortex passage (46) is connected to the axial-direction passage (45) and extends from a connection section between same and the axial-direction passage (45), towards the outside in the radial direction relative to an axis line (Ar). The first blade array passage (47) is connected to an end section on the outside in the radial direction in the forced vortex passage (46) and guides cooling air to a first rotor blade row (33b) among a plurality of rotor blade rows. The second blade array passage (48) is connected to an end section on the outside in the radial direction in the forced vortex passage (46) and guides cooling air to a second rotor blade row (33c) among the plurality of rotor blade rows.
Inventors:
TAKAMURA KEITA (JP)
YURI MASANORI (JP)
HASHIMOTO SHINYA (JP)
YURI MASANORI (JP)
HASHIMOTO SHINYA (JP)
Application Number:
PCT/JP2015/071418
Publication Date:
March 03, 2016
Filing Date:
July 28, 2015
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F02C7/18; F01D5/08; F01D5/18; F01D25/12; F02C6/08
Domestic Patent References:
| WO2010001655A1 | 2010-01-07 |
Foreign References:
| JPH1181904A | 1999-03-26 | |||
| JP2004239254A | 2004-08-26 | |||
| JPH10266802A | 1998-10-06 |
Attorney, Agent or Firm:
MORI Ryuichirou et al. (JP)
Woods Ryuichiro (JP)
Woods Ryuichiro (JP)
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