Abradable sealing element
US11428169B2 · kind B2 · utility
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2References
20Claims
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Key dates
| Filing date | Nov 12, 2020 |
| Grant date | Aug 30, 2022 |
| Priority date | — |
| Expiry date | Nov 12, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/175
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
An abradable sealing element comprises a substrate and a sealing structure. The sealing structure comprises one or more wall structures extending from the substrate and defining at least one open cell which is filled with abradable material. The one or more wall structures are formed by additive-layer, powder-fed, laser-weld deposition onto the substrate. The one or more wall structures are formed from nickel-based superalloy and constitute from about 10% to about 50% of the total volume of the sealing structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.