Title:
VENTILATION SYSTEM OF TURBINE PART
Document Type and Number:
Japanese Patent JPS6217302
Kind Code:
A
Abstract:
Ventilation apparatus for creating a fluid flow through the interhub spacing between the hubs of adjacent turbine wheels which are not integral with the rotor of the turbine includes an outward radial extension of the hub of the downstream wheel and/or a roundoff of the hub of the upstream wheel and/or a displacement of the axis of the hub of the upstream wheel from the axis of the hub of the downstream wheel for increasing the static pressure over a first predetermined arcuate portion of the interhub spacing in an ancillary fluid flow between the hubs and a seal circumferentially surrounding the hubs. Also, either alone or in combination with the static pressure increasing devices, static pressure reduction apparatus includes an outward radial extension of the hub of the upstream wheel and/or a roundoff of the hub of the downstream wheel and/or a displacement of the axis of the hub of the upstream wheel from the axis of the hub of the downstream wheel for decreasing the static pressure over a second predetermined arcuate portion of the interhub spacing in the ancillary flow. Preferably, the first predetermined arcuate portion is disposed diametrically opposite to the second predetermined arcuate portion.
Inventors:
EDOWAADO HARII MIRAA
KENESU ERUMAA ROBINZU
KENESU ERUMAA ROBINZU
Application Number:
JP12385386A
Publication Date:
January 26, 1987
Filing Date:
May 30, 1986
Export Citation:
Assignee:
GEN ELECTRIC
International Classes:
F01D5/08; F01D5/06; (IPC1-7): F01D5/06
Domestic Patent References:
| JPS572402A | 1982-01-07 | |||
| JPS57126502A | 1982-08-06 | |||
| JPS5314207A | 1978-02-08 | |||
| JPS5741403A | 1982-03-08 |
Attorney, Agent or Firm:
Tokunji Ikunuma