Dynamic fluid seal
US10030777B2 · kind B2 · utility
1Cited by
11References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Jul 24, 2018 |
| Priority date | — |
| Expiry date | Apr 11, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/4472
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A low drag fluid seal. The fluid seal includes a rigid lip separated from the rotor shaft by a gap, the gap being sufficient narrow, radially, to prevent liquid from seeping through the gap at an unacceptable rate, but sufficiently wide, radially, to avoid unacceptably high viscous drag. Fluid that seeps through the gap accumulates in a recovery cavity and is recovered by a scavenge pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.