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.

Described in certain example embodiments herein is an electrical controller for a damper body assembly that stores a damping policy and instructions implementing a control method based on the policy. In certain embodiments, the controller receives a sensor output and transmits a signal to alter the contribution to a damping coefficient of the damper from each fluid mass as a function of the sensor output, policy, and control method. Described in several exemplary embodiments herein, are methods of using the electrical controller. Also described in several exemplary embodiments herein are damper body assemblies that can be controlled by the electrical controller, an actuation assembly, and methods of using the same.

The disclosure relates to the field of vehicle energy recovery devices, and particularly discloses a vehicle shock absorber capable of generating electricity which includes a shock absorber body, a piston rod and a bearing spring. The shock absorber body includes an inner cylinder and an outer cylinder, and an oil storage chamber communicated with an inner cavity of the inner cylinder is formed between the inner cylinder and the outer cylinder. Both ends of the bearing spring are respectively connected to an upper end of the piston rod and the outer cylinder. A bottom end of the piston rod is connected to a piston in sliding fit with the inner cylinder, and a coil is sealedly disposed in the piston. Opposite sides inside the oil storage chamber are each provided with a permanent magnet with an opposite magnetic pole, and the coil is connected to an electrode lead.

The disclosure relates to the field of vehicle energy recovery devices, and particularly discloses a vehicle shock absorber capable of generating electricity which includes a shock absorber body, a piston rod and a bearing spring. The shock absorber body includes an inner cylinder and an outer cylinder, and an oil storage chamber communicated with an inner cavity of the inner cylinder is formed between the inner cylinder and the outer cylinder. Both ends of the bearing spring are respectively connected to an upper end of the piston rod and the outer cylinder. A bottom end of the piston rod is connected to a piston in sliding fit with the inner cylinder, and a coil is sealedly disposed in the piston. Opposite sides inside the oil storage chamber are each provided with a permanent magnet with an opposite magnetic pole, and the coil is connected to an electrode lead.

Hydraulic damper with load regulation as a function of frequency by means of hydraulic inertia composed of a cylinder, comprising an inner chamber, a rod, a main piston and an inertia piston, immersed in a hydraulic fluid, so that the inner chamber is divided into 3 sub-chambers, the main piston comprises a flow path controlled by valves to allow bidirectional flow of fluid between the sub-chambers and the inertia piston comprises a flow path called the inertia channel configured to allow fluid flow between sub-cameras at both sides of the inertia piston.

Disclosed is a shock absorber. The shock absorber includes a cylinder filled with a fluid, and a piston valve coupled to an end of a piston rod to partition the inside of the cylinder into a rebound chamber and a compression chamber and to which a lower washer is fastened at a lower end thereof, and further includes a guide member disposed to be spaced apart from the lower side of the piston valve so as to be movable forward and backward within the cylinder and having a connection flow path communicating a pressing chamber formed at a lower side and the compression chamber, a bumper member provided to be compressible in the pressing chamber to elastically support the guide member, and a support member coupled to an end of the cylinder to support a lower end of the bumper member and having a communication hole communicating with the pressing chamber, wherein the bumper member partitions the pressing chamber into a first pressing chamber and a second pressing chamber and has a plurality of side holes communicating the first pressing chamber and the second pressing chamber.

Disclosed is a shock absorber. The shock absorber includes a cylinder filled with a fluid, and a piston valve coupled to an end of a piston rod to partition the inside of the cylinder into a rebound chamber and a compression chamber and to which a lower washer is fastened at a lower end thereof, and further includes a guide member disposed to be spaced apart from the lower side of the piston valve so as to be movable forward and backward within the cylinder and having a connection flow path communicating a pressing chamber formed at a lower side and the compression chamber, a bumper member provided to be compressible in the pressing chamber to elastically support the guide member, and a support member coupled to an end of the cylinder to support a lower end of the bumper member and having a communication hole communicating with the pressing chamber, wherein the bumper member partitions the pressing chamber into a first pressing chamber and a second pressing chamber and has a plurality of side holes communicating the first pressing chamber and the second pressing chamber.

Embodiments of a hydraulic bump stop assembly may include a telescoping hydraulic cylinder containing hydraulic fluid. The telescoping cylinder may be located on a vehicle shock. Components of the shock may engage and compress the telescoping cylinder during the final stages of compression of the shock to prevent the shock from bottoming out. The telescoping cylinder has damping properties during compression and expansion due to hydraulic fluid being forced through orifices of one or more hydraulic fluid lines to and from a reservoir. Damping ratios may be adjusted by adjusting the size of the orifices. In some embodiments, the damping ratios may be adjusted remotely, such as from the driver compartment of the vehicle.

Embodiments of a hydraulic bump stop assembly may include a telescoping hydraulic cylinder containing hydraulic fluid. The telescoping cylinder may be located on a vehicle shock. Components of the shock may engage and compress the telescoping cylinder during the final stages of compression of the shock to prevent the shock from bottoming out. The telescoping cylinder has damping properties during compression and expansion due to hydraulic fluid being forced through orifices of one or more hydraulic fluid lines to and from a reservoir. Damping ratios may be adjusted by adjusting the size of the orifices. In some embodiments, the damping ratios may be adjusted remotely, such as from the driver compartment of the vehicle.

A method for controlling an elastic mount configured to support a propulsion device with respect to a marine vessel, wherein the elastic mount contains an electromagnetic fluid and an electromagnet and is configured such that adjusting an amount of electricity applied to the electromagnet changes the shear strength of the electromagnetic fluid and thereby controls elasticity of the elastic mount, including applying a first amount of electricity to the electromagnet to produce a first elasticity in the elastic mount, determining that a vessel speed indicator exceeds a high speed threshold, determining that a trim position for the propulsion device is greater than a threshold trim position, detecting at least a threshold decrease in throttle demand, and applying a second amount of electricity to the electromagnet wherein the second amount of electricity is greater than the first amount of electricity, so as to decrease the elasticity of the elastic mount.