Cooling flow control device for turbine blades
US4526512A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 28, 1983 |
| Grant date | Jul 2, 1985 |
| Priority date | — |
| Expiry date | Mar 28, 2003 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01D5/188
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A flow control body in the aft end of a hollow core of a turbine vane provides localized increased velocity cooling air flow in a wide portion which is otherwise difficult to cool. The flow control body includes lands and grooves with the cooling air being constrained to flow through the grooves and provide localized cooling while conductive heat transfer through the lands to the flow control body provides substantial temperature uniformity along the length of the vane. Turbulence chambers may be formed in the flow control body to further control cooling and the shape or other parameters of the flow control body may be modified to accommodate uneven end-to-end heating of the vane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.