A piston and cylinder type damper with a cylinder containing damping fluid. The damper is operable to perform a compression stroke and a return stroke. A piston rod that can engage with both a piston assembly and a return means. A sealing element is movable axially with respect to said piston rod such that said sealing means is operable to engage with both said piston assembly and said return means, such that, in said compression stroke the sealing means engages solely with said piston assembly, and in said return stroke engages solely with said return means.

A piston and cylinder type damper with a cylinder containing damping fluid. The damper is operable to perform a compression stroke and a return stroke. A piston rod that can engage with both a piston assembly and a return means. A sealing element is movable axially with respect to said piston rod such that said sealing means is operable to engage with both said piston assembly and said return means, such that, in said compression stroke the sealing means engages solely with said piston assembly, and in said return stroke engages solely with said return means.

A fluid damper is provided including a cylinder filled with a damping fluid, a piston base body shiftably guided in the cylinder along a stroke axis, and a valve disk spaced apart from a shell wall of the cylinder. The piston base body divides an inner space of the cylinder into a front space and a rear space along the stroke axis. In the piston base body, there is at least one channel connecting the front space to the rear space in a fluid-conducting manner. The valve disk is shiftably guided along the stroke axis between an opening position unblocking the at least one channel and a closing position closing the at least one channel. The valve disk has a central area extending radially outward from the stroke axis, the central area being free of apertures.

A damper valve with an adjustable effective stiffness of a shim. The damper valve includes a piston. The piston has a fluid path formed therethrough. A shim is disposed proximate the fluid path formed through the piston. A stiffness adjustment feature is coupled to the shim, and the shim is disposed between the piston and the stiffness adjustment feature. The stiffness adjustment feature is configured to adjust the effective stiffness of the shim without affecting a preload applied to the shim.

A vehicle damper assembly is disclosed. The damper includes a cylinder having an inner diameter (ID). A rod and a piston, the piston coupled to the rod and configured to divide the cylinder into a compression side and a rebound side. An electronic valve assembly including an electronic valve body coupled with the rod on the compression side of the piston. The electronic valve body having an electronic valve body outer diameter (OD). A boost valve having a boost valve body, a boost valve area located between the electronic valve body and the boost valve body, the boost valve having a boost valve OD. The boost valve OD is larger than the electronic valve body OD, such that the boost valve is configured to allow the electronic valve assembly to operate within said cylinder ID that is too large for the electronic valve body OD.

A vehicle damper assembly is disclosed. The damper includes a cylinder having an inner diameter (ID). A rod and a piston, the piston coupled to the rod and configured to divide the cylinder into a compression side and a rebound side. An electronic valve assembly including an electronic valve body coupled with the rod on the compression side of the piston. The electronic valve body having an electronic valve body outer diameter (OD). A boost valve having a boost valve body, a boost valve area located between the electronic valve body and the boost valve body, the boost valve having a boost valve OD. The boost valve OD is larger than the electronic valve body OD, such that the boost valve is configured to allow the electronic valve assembly to operate within said cylinder ID that is too large for the electronic valve body OD.

The present invention relates to a shock absorber with multiple damping laws including a regulating body with a primary valve and a secondary valve, and an activating shaft with a plurality of channels, the activating shaft being housed in an axial orifice of a piston pin that incorporates a plurality of orifices intended to align by rotation of the activating shaft with the channels to determine a damping law and, with the second orifice in direct communication with the regulating body, wherein the regulating body includes a floating piston that has a toroidal configuration and is made of an elastic material, so that it gradually transfers a force to the primary valve depending on the pressure to which it is subjected.

The present invention relates to a shock absorber with multiple damping laws including a regulating body with a primary valve and a secondary valve, and an activating shaft with a plurality of channels, the activating shaft being housed in an axial orifice of a piston pin that incorporates a plurality of orifices intended to align by rotation of the activating shaft with the channels to determine a damping law and, with the second orifice in direct communication with the regulating body, wherein the regulating body includes a floating piston that has a toroidal configuration and is made of an elastic material, so that it gradually transfers a force to the primary valve depending on the pressure to which it is subjected.

Provided is a valve device and a shock absorber that can prevent them from being in a failure state at the normal time and can freely set a passive valve even when both pressure control and passage opening/closing are performed by a solenoid valve. For this reason, the valve device includes a first passage and a second passage connected downstream of the pressure introducing passage, a solenoid valve that opens the first passage to control the upstream pressure and closes the second passage when energized, and that closes the first passage and opens the second passage when not energized, and a passive valve provided downstream of the solenoid valve in the second passage.

Provided is a valve device and a shock absorber that can prevent them from being in a failure state at the normal time and can freely set a passive valve even when both pressure control and passage opening/closing are performed by a solenoid valve. For this reason, the valve device includes a first passage and a second passage connected downstream of the pressure introducing passage, a solenoid valve that opens the first passage to control the upstream pressure and closes the second passage when energized, and that closes the first passage and opens the second passage when not energized, and a passive valve provided downstream of the solenoid valve in the second passage.