To provide a fluid-sealed vibration control device of a novel structure capable of exhibiting the effective vibration control effect particularly to large amplitude vibration of a high frequency area.
While constituting a partition wall part of a pressure receiving chamber 124 and an intermediate chamber 128 out of a movable partition wall 62 for allowing elastic displacement, a partition wall part of the intermediate chamber 128 and a balancing chamber 126 is constituted of an elastic movable film 64. A movable plate 106 exerting pressure of the pressure receiving chamber 124 on one surface by restricting a displacement quantity and exerting pressure of the intermediate chamber 128 on the other surface, is arranged on the movable partition wall 62, and a dynamic damper is constituted for tuning a turning frequency of a second orifice passage 132 for communicating the intermediate chamber 128 with the balancing chamber 126 to a higher frequency area than a tuning frequency of a first orifice passage 130 for communicating the pressure receiving chamber 124 with the balancing chamber 126 and tuning a natural frequency of the movable partition wall 62 to a further higher frequency area than the second orifice passage 132.
OGAWA YUICHI
WATANABE YOSHINORI
| JP2006132666A | 2006-05-25 | |||
| JP2006266488A | 2006-10-05 | |||
| JPH02300537A | 1990-12-12 | |||
| JP2003074617A | 2003-03-12 | |||
| JP2008138856A | 2008-06-19 |
Nakane Mie
Next Patent: FLUID-SEALED VIBRATION CONTROL DEVICE