| 摘要 |
PROBLEM TO BE SOLVED: To provide a liquid-sealed vibration control device capable of restraining generation of abnormal sound caused by cavitation, without maximally reducing the vibration control effect by the flow passage resistance of an orifice passage. SOLUTION: A liquid chamber 15 is formed inside a mount body 10 for connecting a car body side installation member 11 to an engine side installation member 12 by an elastic member 13. The liquid chamber 15 is partitioned into a pressure receiving chamber 15a changing in internal pressure in response to deformation of the elastic member 13, and a balancing chamber 15b allowing a volumetric change by deforming a flexible film 14, by a partition member 16 forming its part of a movable film 20. The pressure receiving chamber 15a and the balancing chamber 15b are communicated via the orifice passage 17. A through-hole 23 is formed in the movable film 20 for communicating the pressure receiving chamber 15a with the balancing chamber 15b, and a tongue piece-like valve element 25 is formed for blocking up by covering the through-hole 23 and opening the through-hole 23 by being elastically deformed. COPYRIGHT: (C)2008,JPO&INPIT |
