Patent ID: 6224045
Filing Date: 2001-05-01
Classification: F16F

Abstract:
A fluid-filled vibration damping device including (a) a first mounting member and a second mounting member which are spaced apart from each other, (b) an elastic body elastically connecting said first and second mounting members and partially defining a primary fluid chamber filled with a non-compressible fluid, (c) a partition structure supported by said second mounting member and partially defining an orifice passage, (d) a flexible diaphragm partially defining an auxiliary fluid chamber which is filled with the non-compressible fluid, held in fluid communication with said primary fluid chamber through said orifice passage, and located on one of opposite sides of said partition structure which is remote from said primary fluid chamber, and (e) a movable rubber plate partially defining said primary fluid chamber and held at a peripheral portion thereof by said partition structure, wherein an improvement comprises:said partition structure comprising a support member which includes a cylindrical engaging portion, and at least one fluid-tightly fitted component which is superposed on said support member in an axial direction of said cylindrical engaging portion and which includes a cylindrical engagement portion fitted in said cylindrical engaging portion of said support member;said movable rubber plate being movably bonded at the peripheral portion thereof to an inner circumferential surface of said cylindrical engaging portion of said support member, which surface is covered by a sealing rubber layer; andsaid cylindrical engaging portion of said support member being radially inwardly drawn onto an outer circumferential surface of said cylindrical engagement portion of each of said at least one fluid-tightly fitted component via said sealing rubber layer, so as to establish fluid-tight sealing between said engaging portion of said support member and said each fluid-tightly fitted component.