| 摘要 |
PURPOSE:To improve the damping action of low frequency-large amplitude vibration and the absorption of high frequency-small amplitude vibration in the above described device used for supporting a vehicle engine, by constituting one of the two fluid chambers in the device with a bellows further having a weight member and the other one of the chambers with an elastic body thin film partially in its wall side. CONSTITUTION:The vibration of low frequency-large amplitude acted between support parts 1, 4 causes a deformation in an engine support member 8, then fluid flows from the first fluid chamber 9a into the second fluid chamber 9b to damp the vibration. Here because the fluid chamber 9b is constituted by a bellows 7 into which a weight member 70 is buried, a large amount of fluid can flow into the chamber to obtain a good effect of damping operation in cooperation with the inertia force of the weight member 70. While the vibration of high frequency-small amplitude is absorbed by both the support member 1 and a thin film part 81, and the fluid is never circulated through a throttling hole 6. In this way, performances for damping the vibration of low frequency-large amplitude and absorbing the vibration of high frequency-small amplitude can be improved. |
