Dual-ring gland seal for dynamoelectric machine rotor
US4486024A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 17, 1983 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | May 17, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S277/927
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A gland seal assembly is provided which utilizes a double oil flow in conjunction with two gland seal rings. One of the oil streams is passed through a gland seal ring in a radial direction into the clearance gap between that ring and a rotatable shaft. Another flow of oil is passed between that ring and another gland seal ring in such a way as to exert a force between the rings which pushes the two rings in opposing axial directions away from each other and toward axial faces of an angular groove in a gland seal bracket. By causing a force against the gland seal rings in axial opposing directions, the rings are moved towards the axial faces of an annular groove in such a way that gaps between the gland seal rings and the groove wall are reduced with a corresponding reduction in the non-functional flow of oil.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.