A suspension system including four dampers where each damper includes compression and rebound chambers. The suspension system has four hydraulic circuits, each including a cross-over hydraulic line that extends between dampers located at opposite corners of the vehicle (i.e., between the front left and back right dampers or between the front right and back left dampers). The suspension system further includes four electromechanical comfort valves that open and close four bridge hydraulic lines that extend between the cross-over hydraulic lines at each corner of the vehicle. Each cross-over hydraulic line is connected to a manifold assembly by a corresponding manifold hydraulic line. The manifold assembly includes four manifold valves that are connected to a pump assembly and two manifold comfort valves. All six comfort valves are electromechanical valves that can be actuated to control the roll and pitch of the vehicle during cornering, braking, and acceleration.

A damping force generating mechanism includes: a flow passage formation part that forms a flow passage through which a liquid flows; and a valve that is configured to control a flow of the liquid in the flow passage. The flow passage formation part includes a first seat part that is provided radially outward of a flow passage port of the flow passage, protrudes from the flow passage port and contacts the valve, a second seat part that is provided radially outward of the first seat part, protrudes from the flow passage port and contacts the valve, and a circulation part having an orifice that allows the liquid to flow from the flow passage port toward the second seat part in a state in which the valve is in contact with the first seat part.

A mechanical bypass for a shock assembly is disclosed herein. The assembly has a damper chamber having a compression portion and a rebound portion. There is further an external reservoir in fluid communication with the rebound portion of the damper chamber via a flow path. A valve is coupled with the flow path, the valve to meter a flow of the working fluid through the flow path. A bypass port to the external reservoir is provided in the flow path and bypasses the valve. A mechanical relief valve is provided in the bypass port to block a fluid flow though the bypass port until a blow-off pressure that is higher than a normal operating pressure and less than a burst pressure of the damping chamber is provided thereon.

A suspension system of an associated vehicle. The suspension system comprises an outer reservoir tube extending along an axis between a first end and a second end and defining a chamber. A piston assembly is at least partially located in the chamber. The piston assembly includes a piston rod and a piston head. A solenoid assembly is connected to the piston rod. The solenoid assembly comprises a core including a core head and a core body. A spool extends about the core body and defines a space. A coil is wrapped around the spool within the space. An induction plate is at least partially located between the spool and the core head. As the input current is modulated the induction plate promotes the induction of eddy currents opposing the field induction attenuating the force ripples of the magnetic field buildup and decay.

The present disclosure relates to a shock absorber, in more detail, a damping force controlling shock absorber of which a damping force characteristic can be appropriately adjusted. A damping force controlling shock absorber according to the present disclosure includes: a cylinder formed in a double structure of an inside and an outside, having an internal space divided into a compression chamber and a rebound chamber by a piston valve, and having a reservoir chamber in an external space; a compression solenoid valve mounted on the cylinder; a rebound solenoid valve mounted on the cylinder; and a check valve disposed in the rebound solenoid valve, and opening and closing a channel connecting the reservoir chamber and the rebound chamber.

A valve assembly includes a valve body defining an inner volume, a flow controller positioned within the inner volume, a plug positioned within the inner volume, and a biasing element. The plug is spaced from the flow controller such that an intermediate chamber is defined between the plug and the flow controller. The biasing element is positioned in the intermediate chamber between the plug and the flow controller. The plug is repositionable within the inner volume. As the plug moves within the inner volume, the plug interacts with the biasing element such that the biasing element provides a biasing force to the flow controller.

A suspension device includes: a damper that has an extension-side chamber and a contraction-side chamber; an extension-side passage connected to the extension-side chamber; a contraction-side passage connected to the contraction-side chamber; a switching device that connects one of the extension-side passage and the contraction-side passage to the supply passage and connecting the other of the extension-side passage and the contraction-side passage to the discharge passage selectively; an extension-side damping element provided in the extension-side passage; a contraction-side damping element provided in the contraction-side passage; a control valve capable of adjusting a pressure in the supply passage; an intake check valve provided midway in the intake passage; and a supply-side check valve provided in the supply passage between the control valve and the pump.

A bumper cap assembly for an electrically adjustable hydraulic shock absorber. The bumper cap assembly includes a printed circuit board assembly and a bumper cap. The printed circuit board assembly includes power drive electronics and is electrically coupled to the shock absorber. The bumper cap defined a gap, wherein the printed circuit board assembly is housed within the gap.

A damping air spring and shock absorber combination for heavy-duty vehicle axle/suspension systems includes a damping air spring and a shock absorber both operatively attached to the axle/suspension system. The damping air spring primarily provides damping to the axle/suspension system over a first range of frequencies. The shock absorber primarily provides damping to the axle/suspension system over a second range of frequencies. The first range of frequencies is from about 0.0 Hz to about 6.0 Hz and the second range of frequencies is from about 0.0 Hz to about 13.0 Hz.

An air spring for a heavy-duty vehicle includes a bellows chamber, a piston chamber, and at least one opening. The piston chamber is operatively connected to the bellows chamber. The at least one opening is in fluid communication with the bellows chamber and the piston chamber to provide fluid communication between the bellows chamber and the piston chamber. An orifice assembly is disposed adjacent the at least one opening for variably changing the size of the opening. The air spring provides damping to the heavy-duty vehicle.