| 摘要 |
PURPOSE:To achieve wide range vibration damping by forming a limited path between a vibration generating section and a partitioner provided on one vibration receiving section and the surrounding wall thereby damping the high frequency vibration properly while to damp the vibration accurately even when subjected to the lateral vibration component of engine. CONSTITUTION:A tubular bracket 28 provided in a liquid chamber 26 is provided with a through-hole 30 and a partition 38 movable by predetermined amount. The partition 38 will partition the liquid chamber 26 into the upper and lower liquid chambers 26A, 26B while an orifice 42 or a limiting path is formed between the outercircumference of the partition 38 and the surrounding wall of said bracket 28. Consequently, even when subjected to the lateral vibration of engine, the orifice 42 will never deform to produce accurate damping function continuously. When subjected to high frequency low amplitude vibration through motion of the partition 38 by predetermined amount, the pressure rise in the upper liquid chamber 26A is prevented to absorb the vibration. |
