Patent ID: 9651111
Date: 2017-05-16
CPC Classifications: F16F

Claim:
1. A fluid-filled vibration damping device comprising a vibration damping device main unit which includes a first mounting member, an annular second mounting member, a main rubber elastic body elastically connecting the first and second mounting members, and a fluid chamber whose wall is partially constituted by the main rubber elastic body and which is filled with a non-compressible fluid, wherein the vibration damping device main unit further includes a joint member locked on the second mounting member and temporarily coupled thereto in an axial direction, and an annular sealing part provided to the joint member and overlapped on the second mounting member in the axial direction with a sealing rubber sandwiched therebetween so as to achieve a temporary seal, a sealing coupling member is mounted on the second mounting member of the vibration damping device main unit, and the sealing coupling member exerts a pressing force in a direction of overlapping on the second mounting member and the joint member so as to increase a compression ratio of the sealing rubber and achieve a full seal, the main rubber elastic body is disposed on a first axial side of the second mounting member while a flexible film is disposed on a second axial side of the second mounting member so as to provide the fluid chamber between the main rubber elastic body and the flexible film, a partition member is arranged between the second mounting member and the flexible film so as to partition the fluid chamber into a pressure receiving chamber and an equilibrium chamber, and an orifice passage is provided that places the pressure receiving chamber and the equilibrium chamber in communication with each other, and a pressing force by the joint member is exerted on an outer circumference edge of the flexible film overlapped on an outside of the partition member in addition to a sealing member arranged between the second mounting member and the partition member so that both the sealing member and the outer circumference edge of the flexible film achieve the temporary seal while achieving the full seal provided by the sealing coupling member.