A fluid-enclosed engine mount may include an insulator mounted between a core configured to be connected to an engine and an external pipe configured to be connected to a vehicle body, the insulator being provided with an internal space enclosing fluid; an orifice module disposed at the inside of a lower side portion of the insulator to divide the internal space into an upper chamber and a lower chamber, the orifice module being provided with a fluid passage for allowing fluid to fluidically-communicate between the upper chamber and the lower chamber; a support member disposed between an external surface of the orifice module and the lower side portion of the insulator to elastically support the orifice module to be vertically movable; and a pipe member disposed between the lower side portion of the insulator and the support member to support an external surface of the support member.

A hydraulic mount apparatus includes a housing having an upper and a lower portion disposed on a center axis and defining a housing chamber. A partition member is disposed in the housing chamber dividing the housing chamber into a pumping chamber and a receiving chamber. The pumping chamber extends between the upper portion and the partition member. The receiving chamber extends between the lower portion and the partition member. A decoupler attaches to the partition member separating the pumping and the receiving chambers. A moving member of elastomeric material, disposed in the pumping chamber, attaches to the decoupler. The moving member is molded from a first elastomeric material having a first hardness level and a second elastomeric material having a second hardness level with the first hardness level and the second hardness level being different from one another. The second hardness level is less than the first hardness level.

An engine mount is provided to change properties based on magnitudes of amplitudes input to the engine mount. The engine mount includes a membrane having a central portion and an outer circumferential portion. Upper and lower orifice brackets are mounted between an insulator and a diaphragm to divide an interior of a main casing into an upper liquid chamber and a lower liquid chamber. The upper and lower orifice brackets define a flow path that enables a fluid to flow between the upper and lower liquid chambers and define a receiving space in which the membrane is movable in a vertical direction. An air chamber is connected to a lower side of the lower orifice bracket and allows a lower portion of the membrane to be exposed to air.

Provided is a liquid-filled vibration isolator through which durability of an elastic movable body can be improved. In a case that a liquid pressure of liquid passing through a second orifice P2 is exerted to an outer circumference portion 12 of an elastic movable body 10, whole of the outer circumference portion 12 deforms so as to bend. Based on deformation of the outer circumference portion 12, a first valve portion 13 and facing surfaces 81c, 91c mutually contact or separate. Thereby, the communication state and the blocking state of the second orifice P2 are switched. Since it can be restrained that stress is concentrated in a part of the outer circumference portion 12 by wholly bending the outer circumference portion 12, cracks are less likely to occur in the outer circumference portion 12.

A fluid-filled vibration damping device including a partition having a housing area, and a movable film housed in the housing area while including a central retainer held by the partition and spoke-shaped retainers extending radially outward from the central retainer. A first surface of the movable film is overlapped on a wall inner surface of the housing area. An elastic deformation zone provided circumferentially between the spoke-shaped retainers is allowed to deform in a direction away from the wall inner surface, and includes a cushion ridge projecting from a second surface of the movable film while extending radially outward from the central retainer. A height of the cushion ridge is varied in a direction of extension such that a timing of contact with an opposing wall inner surface in the housing area varies depending on an amount of deformation of the elastic deformation zone.

An anti-vibration device (1) of the present invention includes a cylindrical first attaching member (11) and a second attaching member (12), an elastic body (13), and a partition member (17) which is configured to partition a liquid chamber (14) in the first attaching member into a main liquid chamber (15) and an auxiliary liquid chamber (16). The partition member includes a membrane (31) that forms a part of the partition wall of the main liquid chamber, and an intermediate chamber (35) which is located on a side opposite to the main liquid chamber with the membrane therebetween and has a membrane as a part of a partition wall of the main liquid chamber. In the partition member, a first orifice (21) through which the main liquid chamber and the auxiliary liquid chamber communicate with each other, and a second orifice (22) through which the intermediate chamber and the auxiliary liquid chamber communicate with each other, and a common opening (16a) which forms an opening on the auxiliary liquid chamber side of each of the first orifice (21) and the second orifice (22) are formed.

A hydraulically damping mount for mounting a motor vehicle unit, such as mounting a motor vehicle engine on a motor vehicle body, includes a supporting spring and a compensation chamber. The supporting spring is configured to support a mount core and surround a working chamber. The compensation chamber is separated from the working chamber by a dividing wall and delimited by a compensation diaphragm. In embodiments, the compensation chamber and the working chamber are filled with a fluid and are connected to each other by a damping duct incorporated into the dividing wall. In embodiments, the dividing wall includes a diaphragm that is capable of oscillating, and a foam element associated with the diaphragm supports the diaphragm in the event of a deflection.

A hydromount that is suitable for mounting a motor vehicle engine at a vehicle body includes a supporting spring supporting a mount core and surrounding a working chamber, and a compensating chamber separated from the working chamber by a separating assembly and delimited by a compensating diaphragm. The separating assembly may have at least two nozzle systems which have one decoupling diaphragm each and in each of which one damping duct is disposed. The compensating chamber and the working chamber may be filled with a liquid and may be connected to each other in a liquid-conducting manner by damping ducts. The separating assembly may have an absorber duct connecting the working chamber with the compensating chamber. A switchable actuating member may be assigned to the absorber duct.

A hydraulic mount assembly includes a mount body defining a cavity. A powertrain includes a dynamic mass, and a structure that supports the dynamic mass. The assembly is attached to the structure and supports the dynamic mass. A first plate is fixed relative to the mount body inside the cavity to separate the cavity into a first chamber and a second chamber. The first plate defines a plurality of first passages that fluidly connects the first and second chambers. A decoupler is disposed between the first and second chambers. An actuator is coupled to the first plate. The decoupler is movable in response to actuation of the actuator. The decoupler abuts the first plate when in a locked position to prevent fluid communication through the first passages. The decoupler is movable relative to the first plate when in an unlocked position to allow fluid communication through the first passages.

A fluid-filled vibration damping device including: primary and auxiliary liquid chambers; a partition provided between the two chambers; and a movable plate supported movably in a plate thickness direction thereof by the partition. The movable plate receives liquid pressure of the two chambers on its opposite faces so as to constitute a liquid pressure absorber. The partition includes at least one communication hole opening onto its surface facing the movable plate. The movable plate includes at least one elastic protrusion projecting toward the communication hole. The elastic protrusion includes a peripheral wall to be pressed in compression and shear directions and be elastically deformed to a radially inner side of the communication hole as well by coming into contact with a wall portion of the communication hole due to movement of the movable plate in the plate thickness direction.