Turbine airfoil
US4786234A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 21, 1982 |
| Grant date | Nov 22, 1988 |
| Priority date | — |
| Expiry date | Jun 21, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2240/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A turbine airfoil, such as a turbine blade or nozzle vane, is disclosed for use in a high temperature environment. The airfoil comprises a center post and at least one side piece. The side piece is attached to the center post so that, at room temperature, a clearance between the center post and the side piece permits limited relative movement between the post and side piece. This clearance space, however, is dimensioned so that at the operating temperature of the turbine, thermal expansion of the center post and/or side piece substantially eliminates the clearance as well as the limited movement between the center post and side piece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.