A hydraulic valve includes a closure member, wherein the closure member is actuable toward an opening sealed thereby in the valve, but is unconstrained to move with respect to the opening when the valve is in a dosed position. In an aspect, the closure may be a thin disk, in the shape of a flat washer, which is located between the valve and piston of a hydraulic damper, and when the valve is positioned away from an opening through the piston by virtue of differential pressure across the valve in a dampening r rebound stroke, the disk is free to rotate, move from side to side, and move away from and toward the piston. By employing such a disk, sympathetic vibrations in the damper created during compression events are eliminated.

A hydraulic valve includes a closure member, wherein the closure member is actuable toward an opening sealed thereby in the valve, but is unconstrained to move with respect to the opening when the valve is in a closed position. In an aspect, the closure may be a thin disk, in the shape of a flat washer, which is located between the valve and piston of a hydraulic damper, and when the valve is positioned away from an opening through the piston by virtue of differential pressure across the valve in a dampening r rebound stroke, the disk is free to rotate, move from side to side, and move away from and toward the piston. By employing such a disk, sympathetic vibrations in the damper created during compression events are eliminated.

A hydraulic damper assembly comprises a main tube extending between a first and a second end and defining a fluid chamber extending therebetween. A main piston slidably disposed in the fluid chamber divides the fluid chamber into a compression chamber and a rebound chamber. A piston rod attaches to the main piston. An additional piston couples to the piston rod axially spaced from the main piston. The additional piston has a top surface and a bottom surface and defines at least one pathway extending through the additional piston. The additional piston defines a recess bounded by an upper surface and a lower surface. A ring slidably is disposed in the recess. The additional piston includes an anti-noise member located in the recess whereby the anti-noise member releases fluid pressure between the ring and the upper surface reducing noise generation during a compression stroke and a rebound stroke.

A valve assembly for an air spring includes a body having an opened end disposed in communication with a first tank and a closed end. The body defines a cavity separated by a divider into an upper and a lower portion. The body defines at least one upper orifice in communication with the cavity and a second tank; and at least one lower orifice in communication with the cavity and a third tank. An actuator is disposed in communication with the first, the second, and the third tank. The actuator is rotatable from a first position wherein the actuator is in communication with the first tank alone to a second position allowing communication between the first and the second tank, a third position allowing communication between the first and the third tank, and a fourth position allowing communication between the first, the second, and the third tank.

A piston assembly for a damper includes a main piston disposed on a center axis. A piston rod is attached to the main piston. A regulator extends between the piston rod and the main piston defining a compartment. The regulator has at least one first aperture and at least one second aperture. A restrictor divides the compartment into a first and second portion. An actuator having a core is disposed in the first portion movable between an opened and a closed position. The restrictor includes a sleeve disposed in the compartment and attached to the regulator. The sleeve defines a hole in fluid communication with the first and second portions and flares outwardly in the first portion toward the regulator to define a slanted edge extending at an oblique angle relative to the center axis to allow the working fluid to flow smoothly thereby limiting noises generated.

A valve assembly includes a first valve plate defining at least one first opening and at least one second opening. A valve element located above the first valve plate has a central portion, and at least one tab extending outwards from the central portion. The at least one tab includes a narrow portion axially aligned with the at least one first opening such that the narrow portion at least partially covers the at least one first opening. The at least one tab is selectively provided with electrical energy to melt the narrow portion to form an orifice. The orifice is fluidly coupled with the at least one first opening.

Disclosed is a motor vehicle twin-tube damper comprising: a tube filled with a working liquid, a piston assembly disposed slidably inside the tube divides the tube into a rebound chamber and a compression chamber. A compensation chamber is located outside of the tube. A base valve assembly including a rebound valve assembly and a compression valve assembly controls the flow of the working liquid between the compensation chamber and the compression chamber. The rebound valve assembly includes a number of rebound flow channels covered by a main deflective disc. To suppress vibrations generated by the deflective disc due to pressure fluctuations occurring during rapid changes of the damper stroke direction, the rebound valve assembly includes an additional deflective disc disposed over the main deflective disc and separated from it by an annular gap with a thickness (G) that is less than the thickness of the main deflective disc.

A mounting device, in particular to the mounting of an internal combustion engine on a chassis of a motor vehicle, which is provided with a fluid working chamber that is fluidically connected via at least one fluid channel to a fluid equalization chamber via at least one fluid channel in a housing. At the same time, a fluid damping chamber is provided, which is separated by an elastic membrane from the fluid working chamber and which is connected with fluidic connection via a throttling channel to an outer environment of the mounting device. The throttling channel is formed by a replaceable throttling element separately from the housing.

A valve assembly for an air spring includes a body having an opened end disposed in communication with a first tank and a closed end. The body defines a cavity separated by a divider into an upper and a lower portion. The body defines at least one upper orifice in communication with the cavity and a second tank; and at least one lower orifice in communication with the cavity and a third tank. An actuator is disposed in communication with the first, the second, and the third tank. The actuator is rotatable from a first position wherein the actuator is in communication with the first tank alone to a second position allowing communication between the first and the second tank, a third position allowing communication between the first and the third tank, and a fourth position allowing communication between the first, the second, and the third tank.

A damping valve includes a damping valve body with an annular groove which has a base and which is limited by an inner valve seat surface and an outer valve seat surface for at least one valve disk. The base of the annular groove has a maximum distance from the valve seat surface along a circumferential area and has a minimum axial distance from the valve seat surface in another circumferential area.