Cartridge seal having a high contact pressure seal and means for intersleeve adjustment including quench fluid delivery
US5544897A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1993 |
| Grant date | Aug 13, 1996 |
| Priority date | — |
| Expiry date | Aug 19, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/93
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An improved mechanical seal of the cartridge-type providing an inboard compressed packing seal between dual shaft sleeves and the pump shaft, compressed between the shaft sleeves by action of a plurality of radially arranged set screws. A sharp edge loaded gasket arrangement between axially stacked components which make up the rotary face, the stationary face, the bellows assembly and gland is provided. The axially stacked arrangement is reversible to accommodate either a stationary bellows or rotary bellows application. An annular channel between inner and outer shaft sleeves provides a flow channel for quench fluid flowing annularly inboard to the seal faces and outboard to a quench fluid exit, providing for a uniform annular quench flow.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.