Title:
REACTION BLADE STRUCTURE OF STEAM TURBINE
Document Type and Number:
Japanese Patent JPS61104103
Kind Code:
A
Abstract:
PURPOSE:To improve cascade efficiency by forming a hole penetrating a shroud on the adjoining mating face of the shroud of a cascade of blades. CONSTITUTION:A hole 6 penetrating a shroud 3 is formed on the adjoining mating face of the integrated shroud 3 provided at the tip of a reaction blade 1. One opening 6a of the hole 6 is provided on the gap side between the shroud 3 and a casing 4 at the upstream side of the shroud 3, and the other opening 6b is provided on the blade 1 side at the downstream side of the shroud 3. Accordingly, the growth of a boundary layer on the downstream side of the shroud inner face is suppressed and cascade efficiency can be increased.
Inventors:
NOSE MASAMI
Application Number:
JP22464184A
Publication Date:
May 22, 1986
Filing Date:
October 25, 1984
Export Citation:
Assignee:
FUJI ELECTRIC CO LTD
International Classes:
F01D5/14; F01D5/22; (IPC1-7): F01D5/22
Domestic Patent References:
| JPS55146202A | 1980-11-14 |
Attorney, Agent or Firm:
Iwao Yamaguchi