Hydrostatically mounted squeeze film damper
US5244285A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 1992 |
| Grant date | Sep 14, 1993 |
| Priority date | — |
| Expiry date | Aug 17, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C27/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Squeeze film damper with a viscous damping agent between two concentric cylindrical surfaces (5) on the internal (3) and external (6) parts, respectively, of the damper. The clearance between these two surfaces (5) is supplied with a viscous damping agent, usually oil, from a groove (4) in the cylindrical surface on the internal part (3) of the damper. This groove (4) does not extend all around. In the lower part of the internal part (3) of the damper there are instead two pockets (7) which are separated from each other and from the long damper oil groove (4). When these two pockets (7) are supplied through channels (8) with oil of an adjusted pressure, a lifting force arises which acts on the internal part (3) of the damper so that this part and the associated shaft (1) are lifted and centered, whereupon during operation a damper clearance, extending all around, is obtained without mechanical means. (FIG. 2 )
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.