| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid-filled engine mount of new driven structure capable of showing high-degree vibration control performance in relation to any of three kinds of vibration of low-frequency large-amplitude vibration, low-frequency small-amplitude vibration and middle or high-frequency middle-amplitude vibration, which is to be requested in an engine mount for an automobile, without requiring an actuator or the like. SOLUTION: A first orifice passage 88 tuned to a low-frequency is provided to be always communicated, and a movable partition member 54 provided with a hard central movable plate part 80, which is formed in a central part, and a peripheral movable rubber film part 72, which is provided in a peripheral part and easy to be deformed, forms an intermediate chamber 61 liquid-tightly partitioned from any one of a pressure receiving chamber 34 and a balance chamber 36. A second orifice passage 92 tuned to a middle or high frequency is formed to communicate the other of the pressure receiving chamber 34 and the balance chamber 36 with the intermediate chamber 61. COPYRIGHT: (C)2005,JPO&NCIPI |
