Magnetic fluid sealing device for sealing fluid medium
US11415226B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2022 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/403
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A magnetic fluid sealing device includes a housing, a shaft, a magnetic fluid sealing assembly, a thermal conductive gasket and a resistance wire. The housing has a cavity. The shaft is pivotally arranged in the cavity, and at least one end of the shaft extends out of the cavity. The magnetic fluid sealing assembly is arranged in the cavity and fitted over the shaft. The thermal conductive gasket is arranged in the cavity and fitted over the shaft, an inner peripheral surface of the thermal conductive gasket is spaced apart from the shaft along a radial direction of the shaft, and the magnetic fluid sealing assembly is spaced apart from the thermal conductive gasket along an axial direction of the shaft. The resistance wire is arranged in the thermal conductive gasket and configured to vaporize a sealed fluid medium between the thermal conductive gasket and the shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.