| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid filled vibration isolator utilizing fluid resonating operation, having novel construction for effectively producing isolation effects of a plurality of orifice passages tuned into mutually different frequency regions. SOLUTION: A first division chamber 74, a second division chamber 76, a third division chamber 78 and a sub liquid chamber 50 are communicated in series with one another via the second orifice passage 84, the third orifice passage 96 and the first orifice passage 54. The first division chamber 74 has a wall portion part of which consists of a body rubber elastic body 16 and a supporting rubber elastic body 84, the second division chamber 76 has a wall portion part of which consists of the supporting rubber elastic body 84, the third division chamber 78 has a wall portion part of which consists of a movable rubber plate 62, and the sub liquid chamber 50 has a wall portion part of which consists of a flexible film 40. Furthermore, the first orifice passage 54 is tuned into a low frequency region, the second orifice passage 94 is tuned into a medium frequency region, and the third orifice passage 96 is tuned into a high frequency region. COPYRIGHT: (C)2004,JPO&NCIPI |
