| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid-filled type engine mount with a novel structure capable of advantageously exhibiting anti-vibrational effect revealed based on fluidic action of enclosed incompressible fluid, and capable of effectively restraining generation of extraordinary noise and vibration. SOLUTION: In this fluid-filled type engine mount, a pressure receiving chamber 34 is formed on one side and an equilibrium chamber 36 is formed on the other side while an intermediate chamber 58 is arranged therebetween, one of a partition wall of the pressure receiving chamber 34 side and a partition wall of the equilibrium chamber 36 side separated and confronted with each other in the intermediate chamber 58 is a hard partition wall 44 supported by a second mounting member 14, and the other partition wall is an elastic partition wall 50, a short-circuit hole 78 is formed on the hard partition wall 44, and a valve means 80 protruding to the partition wall 44 from the elastic partition wall 50 and facing the short-circuit hole 78 is provided so that the short-circuit hole 78 is closed and the short-circuit hole 78 is communicated by displacement accompanied by elastic deformation of the elastic partition wall 50 when the pressure fluctuation larger than the pressure fluctuation by input of idling vibration is generated with respect to the intermediate chamber 58. COPYRIGHT: (C)2007,JPO&INPIT |
