| 摘要 |
PROBLEM TO BE SOLVED: To cut off the engine idling vibration having a frequency close to the natural frequency of the engine shake vibration. SOLUTION: This liquid sealing type vibration control device is provided with a rubber insulator 4 provided between a first connector member 91 to be fitted to a vibrator and a second connector member 95 to be fitted to a car body side member to absorb and cut the vibration from the vibrator, a main chamber 5, of which chamber wall is formed by a part of the insulator 4 and which is filled with the liquid, an auxiliary chamber 6 connected to the main chamber 5 through an orifice 3 and of which chamber wall is formed by a diaphragm 7 at a part thereof, and a switching mechanism working as a partition for partitioning between the main chamber 5 and the auxiliary chamber 6 and having a switching function for supporting the partition part in the nearly rigid condition or in the soft condition at a part thereof. The switching mechanism 1 is formed of an electromagnet 11 provided at a central part and a MR fluid chamber 121 provided outside of the electromagnet 11 and sealed with the MR fluid 12. COPYRIGHT: (C)2004,JPO |
