| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid-sealed vibration-proof device that generates two damping peaks, widen the gap between the damping peaks to be broadened, and effectively heightens the damping peaks. <P>SOLUTION: In the liquid-sealed vibration-proof device, a first orifice passage 22 and a second orifice passage 23 are provided in series to connect a main liquid chamber 16 and an auxiliary liquid chamber 17. The first orifice passage 22 is connected on its one end to the bypass passage 25 which is communicated with the auxiliary liquid chamber 17, and an orifice elastic section 24 is provided in the connection. In the bypass passage 25, a mass 30 is provided to be moved in the transverse direction by a working fluid flowing in the main liquid chamber 16. The mass 30 includes a frequency response valve which is configured to switch the passage so that the bypass passage 25 and the auxiliary liquid chamber 17 are communicated with each other on a predetermined frequency, and the communication is shut off in the other case. <P>COPYRIGHT: (C)2013,JPO&INPIT |
