| 摘要 |
PROBLEM TO BE SOLVED: To control two vibration isolating units, provided in both sides of a vibrator, by a single switching means. SOLUTION: In both sides of a vibrator 4, a liquid-sealed vibration isolating unit 1A, 1B is set up. Of these vibration isolating units 1A, 1b, between a balance chamber of the unit 1A provided in the vicinity side and a switching means 3 is connected by a route 2' formed so as to propagate a pressure change in a condition synchronized with an engine vibration. Between a balance chamber of the unit 1B provided in the distant side and the switching means 3 is connected by a route 2 in a high impedance condition provided with a throttle 21 or the like. The switching means 3 switching so as to introduce a negative pressure or the like to these two vibration isolating units 1A, 1B is provided by a single quantity. A control means 5 controlling switching operation of the switching means 3 is provided. In this way, by a simple constitution, absorption and interruption of idling vibration and engine shake can be attained. |
