Hollow, thermally-conditioned, turbine stator nozzle
US4639189A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Feb 27, 1984 |
| Grant date | Jan 27, 1987 |
| Priority date | — |
| Expiry date | Feb 27, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D9/041
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hollow thermally-conditioned turbine stator nozzle 12 is set forth to distribute and guide combustion gases from a forward inlet 15 to the turbine rotor blades 18. The nozzle includes a plurality of vanes 20 arranged annularly in the turbine. Each vane 20 has a body 22 to guide the fluid, the body being supported by outer and inner ends 34,64. The outer and inner ends each have a forward lug 44,74 and a rear lug 46,76. A floating support is provided for the vanes and includes forward shoulders 110,136 to engage the forward lugs and prevent rearward movement of the vanes and rear shoulders 114,142 having notches 116,144 to receive and confine the tangential movement of the vanes. Each vane also includes a hollow core 152 to pass a portion of fluid and reduce thermal stresses on the vane. The vane is preferably made of silicon nitride ceramic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.