Nuclear coolant pump seal and methods of sealing
US11913465B2 · kind B2 · utility
0Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Feb 8, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal assembly for a pump comprises a gland housing mounted to the pump casing. A staging flow pathway is defined within the gland housing with multiple seal chambers. A seal stage is positioned in each seal chamber, each having a static sealing element and a rotating sealing element, the sealing elements engaging one another to form a fluid-tight seal. A rotor assembly pumps coolant through the gland housing. Fluid passing through the staging flow pathway is accelerated by an acceleration surface of the rotor assembly. An inlet passage feeds coolant fluid into the staging flow pathway and past the acceleration surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.