Refractory core comprising a main body and a shell
US10654098B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Jan 13, 2017 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | May 20, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/202
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A refractory core (12) for fabricating a hollow turbine engine airfoil (10) using the lost-wax casting technique, the core comprising a main body (14) and at least one shell (16) connected to the main body (14) and defining a cavity (18) between the main body and the shell, the shell (16) being configured to come into contact with the airfoil (10) during fabrication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.