Rotary seal for an industrial fan assembly
US10054130B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 19, 2017 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Jun 19, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3252
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary seal for a rotating shaft passing through a stationary structure is mounted on the stationary structure and has at least two seal ring fabricated from resilient material and a cavity ring disposed within a seal housing bore of a seal housing. The cavity ring is disposed between the seal rings, and a seal cover compression ring compresses the seal rings and cause the seal rings to engage the seal housing bore to create a seal ring outer seal there between and to engage the rotating shaft to create a seal ring inner seal there between while allowing the rotating shaft to rotate relative to the seal ring. The seal housing has a pressurized inlet passage and the cavity ring includes cavity ring inlet passages allowing pressurized air or fluid to be supplied to the seal housing bore to prevent gases from leaking through the rotary seal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.