An actuator provided with a motor for moving an output arrangement, the actuator including both an output lever and a fusible connection that acts up to a mechanical torque threshold to constrain the output arrangement and the output lever to move together in rotation about an axis of rotation. The actuator also includes a fluid damper device housed between the output lever and the output arrangement to act, following rupture of the fusible connection, to damp movement of the output lever relative to the output arrangement in rotation about the axis of rotation.

An energy absorbing strut having, a first end coupled with an inner cylinder, and a second end connected with a hollow rod extending within the inner cylinder. A piston is carried by the rod having an outer surface sealing against an inside diameter of the inner cylinder and forming a compression chamber and a rebound chamber bounded by the piston, the rod having an internal passageway communicating between the compression chamber and the rebound chamber. An inertial mass carried by the rod movable axially on the rod between a closed position against and annular rod passageway and an open position opening the rod passageway and allowing the flow of a hydraulic fluid between the compression chamber and the rebound chamber. A spring acts on the inertial mass biasing the inertial mass toward the closed position. The energy absorbing strut may be used in a blast mitigation system for a military vehicle or other applications for providing shock isolation between two structures.

A shock absorber includes: a piston which is connected to an upper end of a rod by a fixing member and moves forward and backward in a cylinder; a conductor member which penetrates the piston from an upper end of an outer tube and extends into the rod; a coil which is provided in the rod so as to be capable of detecting a displacement of the conductor member with respect to the rod; an elastic body made of a resin material which is provided adjacent to the conductor member and on an outer side of an outer peripheral surface of the conductor member; and a support portion which supports an outer peripheral surface of the elastic body so as to restrict movement of the elastic body in a direction intersecting a center line of the conductor member.

The present disclosure relates to a hydraulic damper comprising a main tube, a piston assembly, a base valve assembly, and at least one hydraulic compression stop assembly cooperating with a compression valve assembly, and comprising a pin disposed slidably within the piston rod and biased to project an activating tip towards the compression chamber. Said compression valve assembly comprises at least one deflectable or floating disc covering compression flow passages, and biased by a piston member slidable along said axis and normally abutting a retaining surface, and a pressure chamber having one surface defined by a surface of said piston member abutting said retaining surface, wherein said pin upon sliding inside the piston rod facilitates a flow of the working liquid from the compression chamber into said pressure chamber to increase biasing load on said at least one deflectable or floating disc.

The present invention relates to a hydraulic damper, comprising a tube, a piston assembly comprising compression and rebound valve assemblies, and a controllable solenoid valve. The piston assembly further comprises a housing; first, second and third partition members; first, second, third and fourth check valves; and one or more radial channels; wherein said first partition member has a first axial opening and the solenoid valve has a valve member provided with at least one inlet in fluid communication with said first axial opening, and one or more outlets in fluid communication with said first internal chamber, wherein said second partition member has a second axial opening; wherein said first axial opening and said second axial opening allow the working liquid to flow from said third internal chamber to said at least one inlet of the solenoid valve bypassing said second internal chamber.

The invention relates to an agricultural apparatus (1) for spreading material, such as fertilizers, plant protection products, or seed, comprising a distributor linkage (10) which can be folded on both sides, comprising a central part (11), where the central part (11 ) is connected in a rotationally fixed manner to the agricultural apparatus (2 ), two intermediate frames (12a,b) connected to the central part (11) in particular by joints, two lateral booms (13a,b) connected to the respective intermediate frames (12a,b), and a damping assembly (19) for damping motions of the first boom (13a) and the second boom (13b) in the direction of travel of the agricultural apparatus (1), where the damping assembly connects the intermediate frames (12a,b) to one another in particular independently of the central part (11), or where the damping assembly (19) connects the respective intermediate frames (13a,b) to the central part (11).

A baffle press-fit against an inner portion of an outer tube defining an interior of a hydraulic damper. The baffle comprising a first wall, a second wall, opposite the first wall, a circumferential third wall, and a channel formed between at least a portion of the circumferential third wall and the inner portion of the outer tube. The channel comprising an inlet formed along at least a portion of the first wall, an outlet formed along at least a portion of the second wall, and a groove formed along at least a portion of the circumferential third wall and fluidly coupling the inlet to the outlet.

A squeeze mode giant electrorheological fluid damper is disclosed. The squeeze mode giant electrorheological fluid damper comprises a support, a container and a connecting structure, wherein the support comprises a bottom plate, guide shafts and a top plate, the guide shaft is vertically fixed on the bottom plate, and the top plate is slidably arranged on the guide shaft; the container comprises a container body and two spiral spring pieces coaxially arranged in the container body, the container body is fixed on the bottom plate, the bottoms of the two spiral spring pieces are fixed to the bottom of the container, the two spiral spring pieces are not in contact with each other and are spaced by 180°; the top of the connecting structure is fixedly connected with the top plate, and the bottom of the connecting structure is fixedly connected with the tops of the two spiral spring pieces.

A shock absorber including a pressure tube, a piston assembly slidably disposed within the pressure tube, and a fluid transfer tube that extends about the pressure tube, and a reserve tube that extends about the fluid transfer tube is provided. The piston assembly divides an inner volume of the pressure tube into first and second working chambers. An intermediate chamber between the pressure tube and the fluid transfer tube is arranged in fluid communication with the first working chamber. A reservoir chamber between the fluid transfer tube is arranged in fluid communication with the intermediate chamber. An insert is disposed within the intermediate chamber, reducing the volume of the intermediate chamber and defining a fluid transfer channel between the first working chamber and the reservoir chamber.

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.