| 摘要 |
Apparatus for vibration damping a rotor (1) comprises a stationary housing (4), and a bearing whose housing (3) is concentrically engaged in the stationary housing (4) in an axial position by elastic elements (5). In order to reduce resonance vibrations produced by rotation of the rotor (1), an oil space (6) is formed between the stationary housing and the bearing housing, which is sealed at its end by axially spaced sealing rings (10). An inlet channel (7) is provided in the stationary housing for supplying oil under pressure into the space (6), and outlet channels (8a, 8b) for the oil are formed in the bearing housing in the vicinity of the sealing rings. The oil discharge channels (8a, 8b) are provided with constricted regions (14b, 14c) whose flow cross-sections and lengths are related to the flow cross-section (d A ) of the oil inlet channel (7, 14a) such that the oil discharge channels (8a, 8b) act as chokes or throttles. |
