Tip rail cooling insert for turbine blade tip cooling system and related method
US11208902B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2020 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | May 18, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/232
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A tip rail cooling insert for attaching into a tip rail pocket in a tip rail of a turbine blade is disclosed. The insert includes a first inner layer defining at least one first insert cooling channel therein, the first inner layer including a pair of spaced legs defining a first coolant collection plenum with at least the tip rail pocket for directing coolant from at least one internal cooling cavity in the turbine blade to the at least one first insert cooling channel. Each of the pair of spaced legs has an angled outer end configured to accommodate rounded inner corners of the tip rail pocket. A first outer layer is on a first side of the first inner layer, and a second outer layer is on a second side of the first inner layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.