Title:
TURBINE WHEEL
Document Type and Number:
Japanese Patent JPS606002
Kind Code:
A
Abstract:
PURPOSE:To prevent contact between a wheel cover and a seal fin by making the wheel cover of wheel group containing a stopper wheel to be stopped to a turbine rotor disc thinner than the wheel cover of other wheel group. CONSTITUTION:In the wheel group to be stopped to the outercircumference of a turbine rotor disc 1, the wheel cover 13a in the wheel group containing a stopper wheel 7 is made thinner than the wheel cover 13b in other wheel group. The radial dimension to the top of the wheel cover 13a is made shorter by the deformation of the stopper wheel caused through rotation of turbine than that of the wheel cover 13b. Consequently, even when the stopper wheel has deformed through rotation of turbine to increase the radial dimension, damage caused through contact between the wheel cover 13a and the seal fin can be prevented.
Inventors:
MOMOEDA KATSUROU
TSUNODA EIJI
TSUNODA EIJI
Application Number:
JP11392783A
Publication Date:
January 12, 1985
Filing Date:
June 24, 1983
Export Citation:
Assignee:
TOSHIBA KK
International Classes:
F01D5/22; F01D5/32; F01D11/08; (IPC1-7): F01D5/22; F01D5/32
Attorney, Agent or Firm:
Kiyoshi Inomata
Next Patent: JPS606003