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.

The present invention relates to a variable load hydraulic control device comprising an inner tube able to be coupled to an upper tubular head to form an internal chamber and an external chamber, in addition to an inner casing, a floating piston, able to slide between the inner tube and the inner casing, a retaining ring, an upper spring, located between the floating piston and an extension of a washer located inside the upper tubular head, a lower spring, located between the floating piston and an extension of the inner casing, a control surface, a leak opening to communicate the external chamber and the internal chamber, wherein the static load of the hydraulic control device determines the position of the floating piston and the section of passage through the leak opening.

A vehicle suspension damper is described. The vehicle suspension damper includes: a pilot valve assembly; a primary valve; and an adjuster, wherein the pilot valve assembly meters fluid to the primary valve, and the adjuster moves the primary valve.

A damper assembly comprises a monotube damper and a twintube damper in a telescopic configuration. A first piston is connected to a rod and is slidably disposed within a first tube. A second tube and a third tube are each disposed coaxially around the monotube damper, with the third tube disposed within the second tube and defining an annular chamber therebetween. A second piston is connected to an axial end of the first tube dividing an interior of the third tube into an upper chamber and a lower chamber. The second piston defines a twintube passage providing fluid communication therethrough. A base member defines a base passage providing fluid communication between the lower chamber and the annular chamber. A seal selectively blocks fluid flow through the twintube passage or the base passage and based on an axial position of the first tube relative to the second tube.

A damper with inner and outer tubes, a piston rod extending between first and second piston rod ends, and a piston mounted to the second piston rod end. The piston is disposed within the pressure tube to define rebound and compression chambers. A fluid transport chamber is positioned between the inner and outer tubes and an intake valve assembly, abutting one end of the pressure tube inside the outer tube, and defines at least one intermediate chamber that is arranged in fluid communication with at least one externally mounted, electro-mechanical control valve. A rebound chamber pressure relief valve, mounted inside the piston and piston rod end, releases excess fluid pressure in the rebound chamber. A compression chamber pressure relief valve, mounted inside the intake valve assembly, releases excess fluid pressure in the compression chamber.

A pressure regulation valve including a pilot stage valve with a ball valve body and a conical seat. A shock absorber with at least one pressure regulation valve.

A modular electronic damping control system is described and includes a damping component located at a vehicle suspension location. The modular electronic damping control system also includes a control system configured to control the damping component, and determine the type of damping component present. Also, the control system is configured to automatically tune a vehicle's suspension based on the type of damping component present, and automatically monitor the damping component and determine when a change has been made to the damping component so that the control system can then automatically re-tune the vehicle's suspension based on the change to the damping component.

A piston assembly for a lead-lag damper for a blade mounted on a rotor of a helicopter includes a piston-rod that has an inside surface and a piston-head that extends radially outward therefrom. The piston-rod has two ports extending therethrough on opposing sides of the piston-head. A sleeve is positioned in the piston-rod and has two annular passages that communicate with the respective ports. A valve spool is disposed in and slidingly engages the sleeve. The valve spool has a channel which is in variable fluid communication with two passages. The piston assembly includes a biasing member that biases the valve spool axially away from it. The channel has an axial width configured to variably regulate fluid flow between the two ports to control dampening of the piston-rod in response to centrifugal forces applied to the valve spool.

A method for controlling vehicle motion is described. The method includes: comparing a measured acceleration value associated with a movement of a vehicle component of a vehicle with a predetermined acceleration threshold value that corresponds to the vehicle component, wherein the vehicle component is coupled with a frame of the vehicle via at least one vehicle suspension damper; monitoring a state of at least one valve within at least one vehicle suspension damper of the vehicle, wherein the state controls a damping force within the at least one vehicle suspension damper; and based on the comparing and the monitoring, regulating damping forces within the at least one vehicle suspension damper by actuating the at least one valve to adjust to a desired state, such that an acceleration of the frame is reduced.

An adaptive suspension damper may include a body defining a working chamber, and a sleeve operably coupled to the body to alternately open the working chamber to enable a working fluid to enter or leave the working chamber relative to compression and rebound events experienced at the adaptive suspension damper, and close the working chamber to enable the piston head to act as a hydraulic ram inside the working chamber to selectively adjust a position of a piston head in the working chamber to adjust a height of a corner of a vehicle at which the adaptive suspension damper is located.