Tip rail with cooling structure using three dimensional unit cells
US10982553B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2018 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Mar 28, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/607
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A tip for a turbine component, turbine rotor blade or tip of a blade, is disclosed. The tip includes a tip plate configured to be coupled at a tip end of an airfoil chamber; and a tip rail extending radially from the tip plate, the tip rail disposed near or at a periphery of the tip plate. The trip rail includes a cooling structure constituting at least a portion of the tip rail. The cooling structure is in fluid communication with the airfoil chamber, and includes a plurality of repeating, three dimensional unit cells. Each unit cell defines a flow passage that is in fluid communication with the flow passage of at least one other unit cell. The flow passages of the 3D unit cells create a tortuous cooling passage in at least a portion of the tip rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.