High-pressure rotary seal
US6325381A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | May 4, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/441
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A rotary seal adapted for placement on an associated rotating shaft to inhibit fluid flow between the shaft and an associated housing includes an annular main seal member having a peripheral surface, an inner surface defining a central opening, and first and second transverse faces. One of the transverse faces defines a sealing face adapted for sealingly abutting a transverse surface of the associated shaft in a substantially fluid-tight manner. A resilient annular sealing member circumscribes the main seal member and projects radially outwardly therefrom. The resilient annular sealing member is, thus, adapted to sealingly engage the associated housing and the main seal member to inhibit fluid flow therebetween. The resilient sealing member also rotatably fixes the main seal member to the associated housing. An inner ring member is slidably received in a groove defined in the inner surface of the main seal member. The inner ring member is closely received on the associated shaft and is adapted to exert axial force on the main seal member in a first direction in response to fluid pressure exerted on the inner ring member in the first direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.