| 摘要 |
PURPOSE:To obtain excellent vibrationproof characteristic over a wide frequency region. CONSTITUTION:A supporting elastic body 4 is interposed between an inner cylinder 2 fixed on one between a power unit and a car body and an outer cylinder 3 fixed on the other between the power unit and the car body, and a main fluid chamber 6 is formed by the supporting elastic body 4. The main fluid chamber 6 and the first subfluid chamber 7 having the variable capacity are allowed to communicate through the first orifice 8. Further, the second subfluid chamber 11 which is partitioned from the main fluid chamber 6 by a movable plate 10b and the first subfluid chamber 7 are allowed to communicate through the second orifice 12. Each inside of the main fluid chamber 6, first subfluid chamber 7, second subfluid chamber 7, first orifice 8, and the second orifice 12 is sealed with fluid. |
