A vibration isolation device with bracket includes a first attachment member and a second attachment member coupled by a main body rubber elastomer. The second attachment member has a frame shape with a through hole. The main body rubber elastomer is fastened to an upper surface side of the second attachment member. The main body rubber elastomer penetrates to a lower surface side of the second attachment member through the through hole. A holding rubber is formed integrally with the main body rubber elastomer on a lower surface of fitting portions of the second attachment member. A fixed surface is arranged on an upper surface of the fitting portions. The fixed surface is exposed by the main body rubber elastomer, directly superimposed on an inner surface of the fitting grooves, and pressed and fixed by static friction to the inner surface of the fitting grooves by the holding rubber.

A strut assembly for a vibration isolation device is disclosed, comprising a piston spindle; a first elastomeric member and a second elastomeric member bonded to the piston spindle and in contact with an upper housing and a lower housing, respectively; a first strut support and a second strut support attached to or integral with the upper housing and the lower housing, respectively; a first strut spindle and the second strut support configured to be placed in the first strut support and the second strut support, respectively; and one or more removable struts configured to be engaged to the first strut spindle and to the second strut spindle, wherein at least one of the first or second strut spindles is removable such that the one or more struts can be replaced without breaking a bonding of the first elastomeric member, the second elastomeric member, or both.

A fluid-filled vibration damping device including an inner member, an outer member having a tubular part, a main rubber elastic body elastically connecting the two members, and a partition disposed on a radially inner side of the tubular part. An axial end portion of the main rubber elastic body is anchored to a radially inner surface of the tubular part and includes a sealing rubber. The partition includes a press-sealing face positioned at an outer peripheral edge of an axial end face thereof, and is pressed against an axial end face of the sealing rubber at the press-sealing face. A seal rib protruding axially outward from the press-sealing face of the partition is more strongly pressed against the axial end face of the sealing rubber such that a fluid-tight sealing is provided axially between the sealing rubber and the partition.

A system and method using a mount assembly for attaching a powertrain to a structural member of a vehicle. The mount assembly includes a first compliant member, a second compliant member, a first fluid chamber, a second fluid chamber, a pressure compliant membrane, electro-magnetorheological switch and a magnetorheological fluid. A fluid conduit interconnects the first fluid chamber with the second fluid chamber to allow a fluid to pass from the first fluid chamber to the second fluid chamber. The pressure compliant membrane seals the aperture in the second fluid chamber. The electro-magnetorheological switch is activated to generate an electric field in the fluid conduit to change the viscosity of the magnetorheological fluid to achieve a first stiffness profile of the mount assembly. The electro-magnetorheological switch is deactivated to remove the electric field in the fluid conduit to change the viscosity of the magnetorheological fluid to achieve a second stiffness profile of the mount assembly.

A method for filling a liquid into a liquid-filled rubber, the method includes a deaerating step of deaerating a liquid under normal temperature, a cooling step of cooling the deaerated liquid, a pouring step of pouring the cooled liquid into a liquid chamber of a rubber member and a sealing step of sealing the liquid chamber in an atmosphere under reduced pressure to seal the liquid in the liquid chamber.

In an anti-vibration apparatus having a bracket where an anti-vibration apparatus body in which a first mounting member and the second mounting member are connected by a body rubber elastic body is horizontally mounted to the bracket by fitting parts disposed on two sides of a width direction of the second mounting member in the anti-vibration apparatus body to fitting grooves disposed on opposite inner surfaces on two sides of a width direction of the bracket, a locking hole is provided on a deep wall part located on a deep side in a mounting direction of the second mounting member in the bracket, and a locking part is disposed at a tip portion in the mounting direction of the second mounting member to the bracket, and prevents return in a direction opposite to the mounting direction by inserting and locking the locking part to the locking hole.

A method of manufacturing a liquid-sealed antivibration device includes mounting a body component on a liquid tank so that the liquid tank capable of storing a liquid communicates with a liquid-sealed chamber via an opening; supplying the liquid to the liquid tank and the liquid-sealed chamber, storing the liquid in the liquid tank, and charging the liquid in the liquid-sealed chamber; and incorporating an incorporation component into the body component after injecting the liquid from an injection portion toward the incorporation component in a state where the incorporation component is immersed in the liquid stored in the liquid tank.

A hydraulic mount for a vehicle having both forward-rearward damper and upward-downward damper includes: a main rubber configured to define a fluid chamber; an orifice assembly that divides the fluid chamber into an upper fluid chamber and a lower fluid chamber, defines the upper fluid chamber together with the main rubber, and has an orifice arranged between the upper fluid chamber and the lower fluid chamber; and a diaphragm configured to define the lower fluid chamber at the lower side of the orifice assembly. In particular, the main rubber has a partition wall extending downwards so as to partition the upper fluid chamber into a first upper fluid chamber and a second upper fluid chamber in the state in which the lower end of the partition wall is coupled to the orifice assembly.

A system and method using a mount assembly for attaching a powertrain to a structural member of a vehicle. The mount assembly includes a first compliant member, a second compliant member, a first fluid chamber, a second fluid chamber, a third fluid chamber, a pressure compliant membrane, and a valve. A fluid conduit interconnects the first fluid chamber with the second fluid chamber to allow a fluid to pass from the first fluid chamber to the second fluid chamber. The third fluid chamber has an opening in communication with the second fluid chamber and a vent port. The pressure compliant membrane seals the opening between the second fluid chamber and the third fluid chamber. The valve selectively seals the vent port in the third fluid chamber. A first stiffness profile of the mount assembly is selected by actuating the valve to open the vent port. A second stiffness profile of the mount assembly is selected by actuating the valve to close the vent port.

A vibration prevention device includes a vehicle body-side bracket having an inner space and a vibration prevention member disposed in the inner space. A press-fitting surface and a press-fitting groove are formed on an inner surface of the vehicle body-side bracket. The press-fitting surface and the press-fitting groove extend from an edge portion of the inner space opening through an outer surface of the bracket. The vibration prevention member has a first attachment member, a second attachment member, and an insulator disposed between the first attachment member and the second attachment member. The second attachment member has an abutting portion pressed against the press-fitting surface and an attachment portion press-fitted into the press-fitting groove.