FLUID FILLED VIBRATION CONTROL DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a fluid filled vibration control device having novel construction for giving efficient vibration control effects to vibration in different or wide frequency zones. SOLUTION: In addition to a pressure receiving chamber 36 to which vibration is input and a variable capacity balancing chamber 38, an intermediate chamber 70 is formed whose wall portion is partially constructed by a pressure control rubber plate 44 for controlling pressure fluctuation. The pressure receiving chamber 36 and the balancing chamber 38 are communicated with each other via a first orifice passage 72 subjected to low frequency tuning and the intermediate chamber 70 and the balancing chamber 38 are communicated with each other via a second orifice passage 74 subjected to medium frequency tuning. A pressure fluctuation transmitting means 56 is provided between the pressure receiving chamber 36 and the intermediate chamber 70 for transmitting pressure fluctuation in a restrictive manner. COPYRIGHT: (C)2005,JPO&NCIPI