Methods and systems are provided for reducing NVH resultant from collisions between internal components of a hydraulic engine mount. In one example, a hydraulic engine mount may include a de-coupler with a number cavities encased therein and extending along a common circumference of the de-coupler.

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.

A heat exchanger for a vehicle is disposed in a fluid circuit in which a fluid is circulated according to an operating condition of the vehicle. The heat exchanger includes a tank and a pressure adjuster. The tank defines a tank chamber therein and is configured to allow the fluid to flow through the tank chamber. The pressure adjuster is disposed inside the tank and defines a damper chamber separately from the tank chamber. The pressure adjuster is configured to be displaceable or deformable to expand and reduce the damper chamber. The damper chamber is filled with a compressible gas. The pressure adjuster is configured to reduce the damper chamber in response to an increase in a pressure of the fluid in the tank chamber. The pressure adjuster is configured to expand the damper chamber in response to a decrease in a pressure of the fluid in the tank chamber.

A vertical decoupler assembly for a hydraulic mount including a first fluid chamber and a second fluid chamber includes a travel plate defining an interior space for receiving a removable vertical decoupler assembly. The vertical decoupler assembly includes an elastically deformable and tubular shaped diaphragm for dampening small vibrations across the mount. The vertical decoupler assembly may include an inner cage and an outer cage, each including a rigid, perforated, tubular wall disposed on either side of the diaphragm for limiting its radial deflection in each direction. The vertical decoupler assembly may include a rigid lower insert having an inverted cup shape with a second rim sealingly engaging the diaphragm and secured to the inner and outer cages. The decoupler diaphragm also includes a flange and a ring-shaped upper insert for nesting within and sealing against a throat at the upper end of the travel plate.

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.

The present disclosure relates to a hydraulic mount having a unidirectional damping membrane. A hole is formed in a membrane and a one-way closure having upper and lower portions, which are different from each other, is inserted into the hole to control a flow of a fluid. The one-way closure means includes: a body which intermittently closes a lower side of the hole formed at a center of the membrane; a column portion which is vertically formed at a center of the body; and a moving closure which is formed at an upper portion of the column portion and closes an upper side of the hole.

No numbers found in figures. An example vehicular shock absorbing apparatus includes a shock absorber, a hydraulic mount operatively coupled with the shock absorber, a first decoupler movably disposed in a first portion of the hydraulic mount, and a second decoupler movably disposed in a second portion of the hydraulic mount.

A bearing system, for bearing a motor vehicle assembly at a motor vehicle body, with a fluid operating chamber that is in flow connection, by way of at least one fluid channel, with a fluid equilibration chamber, which is present in a housing of the bearing system. The fluid operating chamber and the fluid equilibration chamber are separated by a separating element, in which the at least one fluid channel is present. The separating element is decoupled from the housing by an elastic element, which surrounds the separating element in the peripheral direction. The housing has a cover, which accommodates the fluid equilibration chamber, and a supporting part, which holds a spring element of the bearing system.

A separating device for arrangement between a working chamber and a compensation chamber of a hydraulic mount includes a first nozzle plate and a second nozzle plate which is spaced apart from the first nozzle plate at a first distance. An elastic membrane is arranged between the first nozzle plate and the second nozzle plate. The membrane has at least one bump. The bump has a height with respect to the membrane and is designed in such a way that the bump lies against the first nozzle plate and/or the second nozzle plate in a punctiform manner. A thickness of the membrane and the height of the bump in the uninstalled state together are larger than the first distance, such that the membrane is clamped between the first nozzle plate and the second nozzle plate in a punctiform manner.