Patent ID: 7044456

Claim:
A fluid-filled vibration-damping device for an automotive vehicle, comprising: a first mounting member adapted to be fixed to a member on a power unit side of the vehicle; a second mounting member adapted to be fixed to a member on a body side of the vehicle, and having a cylindrical configuration, the first mounting member being disposed underneath a lower open-end of the second mounting member with an axial spacing therebetween; an elastic body elastically connecting the first and second mounting members so that the lower open-end of the second mounting member is fluid-tightly closed by the elastic body and the first mounting member; a flexible layer is disposed so as to fluid-tightly close an upper open end of the second mounting member so that a fluid-sealing area is formed within the second mounting member and is filled with a non-compressible fluid that is forced to flow within the fluid-sealing area upon application of a vibrational load to the fluid-sealing area so as to exhibit vibration-damping effect; and at least one gas-retaining hole is formed on a side of the first mounting member so as to open to the fluid-sealing area through an opening thereof facing vertically upward, and capable of retaining a predetermined volume of gas therein with the opening thereof facing vertically upward within the non-compressible fluid, and discharging the gas retained therein into the liquid sealing area when the device is installed between the power unit and the body of the vehicle.