Title:
【発明の名称】蒸気冷却翼
Document Type and Number:
Japanese Patent JP2851575
Kind Code:
B2
Abstract:
A steam cooled blade operating in a high temperature gas with a high cooling effect on a trailing edge portion has an impingement plate, disposed in the blade lengthwise direction within a trailing edge side cooling passage formed on a trailing edge side of a moving blade. The impingement plate partitions the trailing edge side cooling passage into a convection cooling steam passage, into which steam is introduced, and an impingement cooling steam passage, formed along a trailing edge of the moving blade. The steam cooled blade further has a by-pass passage 14 for joining the steam, after it is used for cooling the moving blade, flowing from a blade tip side of the impingement cooling steam passage with the steam flowing to a leading edge direction of the moving blade from the convection cooling steam passage.
Inventors:
Kenichiro Takeishi
Kasai Goshu
Kasai Goshu
Application Number:
JP1281196A
Publication Date:
January 27, 1999
Filing Date:
January 29, 1996
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
F01D5/18; F02C7/18; F04D29/32; F04D29/58; (IPC1-7): F01D5/18; F02C7/18
Attorney, Agent or Firm:
Ishikawa Arata