Vibration damping apparatus having an oil space with an outflow choke
US5797684A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 9, 1997 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Sep 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2360/23
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Apparatus for vibration damping a rotor rotatably supported in a stationary housing by a bearing whose retainer housing is concentrically engaged in the stationary housing in an axial position by elastic elements. In order to avoid or reduce vibrations produced by rotation of the rotor particularly resonance vibrations, an oil space is formed between the stationary housing and the bearing retainer which is sealed at its ends by axially spaced sealing rings. An inlet channel is provided in the stationary housing for supplying oil under pressure into the space and outlet channels for the oil are formed in the bearing retainer in the vicinity of the sealing rings. The oil discharge channels are provided with constricted regions whose flow cross-sections and lengths are related to the flow cross-section of the oil inlet channel such that the oil discharge channels act as chokes or throttles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.