Anti-thermal shrinkage support ring for a dynamic radial seal
US12173797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 21, 2021 |
| Grant date | Dec 24, 2024 |
| Priority date | — |
| Expiry date | May 1, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3284
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes an annular support ring disposed within the spring. The support ring biases an outer diameter (OD) of the spring towards the outer sealing leg of the jacket to maintain contact pressure between the inner sealing leg of the jacket and the shaft of the assembly. The support ring controls thermal shrinkage of the spring and the outer sealing leg to maintain a seal between a housing and a shaft of the assembly when the assembly is operated at cryogenic temperatures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.