Title:
GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2017/188040
Kind Code:
A1
Abstract:
The present invention reduces pressure loss in cooling air that is supplied to turbine stator blades. The present invention comprises: a cooling device (7) that generates cooling air by extracting and cooling compressed air (P) from a compressor (1), and supplies the cooling air, along a turbine shaft (4), to a turbine (3); a pressure-booster device (8) that is positioned between the cooling device (7) and the turbine (3), and in conjunction with the rotation of the turbine shaft (4), boosts the pressure of the cooling air toward the outside in the turbine radial direction; a pressure-booster device diffuser (9) that is provided continuous, in the turbine circumferential direction, with the outside of the pressure-booster device (8) in the turbine radial direction, and serves as a path for guiding the cooling air, said cooling air having been boosted in pressure by the pressure-booster device (8) toward the outside of the pressure-booster device (8) in the turbine radial direction; and a manifold (10) that is positioned between the pressure-booster device diffuser (9) and a plurality of turbine stator blades (32) arranged side by side in the turbine circumferential direction, forms a ring-shaped path (10a) continuing in the turbine circumferential direction, and brings said ring-shaped path (10a) into communication with the path (9b) of the pressure-booster device diffuser (9) and with cooling paths (32a) respectively provided within the turbine stator blades (32).
More Like This:
Inventors:
AOYAMA KUNIAKI (JP)
MASUTANI JO (JP)
MASUTANI JO (JP)
Application Number:
PCT/JP2017/015432
Publication Date:
November 02, 2017
Filing Date:
April 17, 2017
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F02C7/18; F01D9/02; F01D25/12
Foreign References:
| JPH04209934A | 1992-07-31 | |||
| JP2000257446A | 2000-09-19 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
Download PDF: