A vehicle includes a suspension system having a first damper, a second damper, and a controller. The dampers include housings and pistons sealingly interfaced with an inner diameter of the housing, dividing the damper into a first and second chamber. The suspension system includes proportional variable relief valves which control pressure of fluid entering or exiting one of the first and second chamber of one of the first and second damper. The controller controls the valves to control extension or compression of the first damper and extension or compression of the second damper based on a degree of roll of the vehicle during a turn of the vehicle or a degree of pitch of the vehicle during acceleration or deceleration of the vehicle. The first and second damper control a roll and pitch of the vehicle. The valves control a damping rate of one of the first and second damper.

A crane for lifting and transporting loads includes a base frame for transferring the loads of the crane onto a support surface by a plurality of wheels. The wheels are capable of rotating relative to the base frame so as to change the camber angle of the wheels.

A mass damper system includes an unsprung mass, a sprung mass, a suspension component that supports the sprung mass with respect to the unsprung mass, and a damper mass that is connected to the unsprung mass. Motion control components are connected to the sprung mass and a fluid-operated system that transfers forces between the motion control components and the damper mass to regulate motion of the damper mass with respect to the unsprung mass.

A wheel assembly of an agricultural implement includes a wheel and a wheel frame supporting the wheel. The wheel frame is configured to pivotally couple to a toolbar of the agricultural implement, and the wheel frame is configured to rotate between a lowered position and a raised position. The wheel assembly also includes a mount configured to fixedly couple to the toolbar. In addition, the wheel assembly includes a linkage assembly configured to control rotation of the wheel frame between the raised position and the lowered position. The wheel assembly also includes a fastener configured to selectively engage the mount and the linkage assembly while the wheel frame is in the lowered position to block rotation of the wheel frame.

A shock absorber assembly with adjustable height for two-wheeled motor vehicles and the like, including a shock absorber with a spring, e.g. a helical spring coaxial to the shock absorber, the shock absorber having a nominal length (L) and at least two couplings operatively connected to the suspension of the vehicle, the spring having a first end and a second end; the shock absorber assembly includes at least one hydraulic fluid pusher installed in series with the spring, the pusher acts on either end of the spring or the pusher acts on either coupling, a source of pressurise hydraulic fluid in fluid connection with the pusher and to actuate the pusher, the shock absorber assembly includes an accumulator tank assembly in fluid connection with the pusher, the accumulator tank assembly in turn includes one tank and a solenoid valve.

A suspension system for supporting a body relative to at least four points, including: a respective front left, front right, back left and back right support arrangement between the respective point and the body, each respective support arrangement including a respective resilience arrangement and a respective control ram, each respective control ram including a respective compression chamber forming at least part of a respective compression control volume; a control arrangement including a first and a second diagonal reversible pump for displacing fluid between diagonally opposite compression control volumes. Each respective resilience arrangement can include a respective damping arrangement to restrict and/or selectively prevent compression and/or expansion of at least a portion of the respective resilience arrangement. Each respective control ram can further include a respective rebound chamber, the front control rams being cross connected and the back control rams being cross connected.

A vehicle includes a frame, and at least one front and rear wheel. The total number of front and rear wheels is at least three. The vehicle includes a mechanism for driving at least one of the front and rear wheels, a seat for a driver, and at least one fall prevention element to prevent, in a closed position of the fall prevention element, a driver from falling off the seat. In an open position of the fall prevention element, a driver can freely take a seat from the outer side of the vehicle via the space which, in the closed position, is occupied by the fall prevention element, or can step out of the vehicle; the fall prevention element slides between the open and closed positions.

Hydraulic systems and methods for reducing the propagation of flow and/or pressure pulsations within a hydraulic system are described. In one embodiment, a hydraulic system may include a hydraulic device and a differential buffer fluidly connected to the hydraulic device. The differential buffer may include a piston that is exposed to pressure pulsations that propagate along separate flow paths and that are at least partially out of phase with one another. Corresponding displacement of the piston due to the out of phase pulsations may at least partially mitigate propagation of the pulsations within the hydraulic system downstream from the differential buffer.

A device for supplying hydraulic energy in a chassis system of a vehicle, including a first and a second motor-pump unit which are mechanically firmly connected to each other, the two motor-pump units preferably being designed identical in structure.

A system for use in a vehicle, the system includes at least two hydraulic damper assemblies. The system includes a syringe pump in fluid communication with the hydraulic damper assemblies. The syringe pump includes a barrel having an opening. The syringe pump includes a plunger slidable within the barrel in a first direction that moves hydraulic fluid into the barrel via the opening and in a second direction that moves hydraulic out of the barrel via the opening. The system includes an actuator supported within the barrel and operatively coupled to the plunger.