Environmental seal and shaft seal
US11725736B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Aug 5, 2021 |
| Grant date | Aug 15, 2023 |
| Priority date | — |
| Expiry date | Aug 19, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/4472
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Embodiments of an environmental barrier and seal include physical shields to protect against mechanical damage, labyrinth features to inhibit fluid/particle intrusion, impeller features, and a brush seal. Combinations of these features are presented in various embodiments, specific to particular operating conditions, to create an environmental barrier that protects primary carbon face seals and other shaft seals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.