Abstract: A vibration damper may include a damper tube and a damper piston disposed in the damper tube so as to be reciprocatingly movable. The damper tube may be connected to a piston rod extending out of the damper tube, and the damper piston may movably separate a first oil-filled damper chamber on a piston rod side from a second oil-filled damper chamber remote from the piston rod. A bottom element at one end of the damper tube seals the end of the damper tube. The bottom element may protrude into the end of the damper tube and thereby reduce oil volume of the second damper chamber.

Abstract: A flange for connecting a vibration damper tube to a module tube of a vibration damper may include one or more fluid ducts, by which the module tube is fluidically coupled to the vibration damper tube. The flange may further include a plastic body in which the fluid duct for the fluidic coupling is formed and wherein connection elements are provided that extend between the vibration damper tube and the module tube. The connection elements may form a retaining connection between the vibration damper tube and the module tube. The plastic body may comprise two opposite side walls, and the connection elements may be formed by metal plates arranged on the side walls. The plastic body may also comprise retaining means for the retaining of the plates.

Abstract: An air spring connecting device for mounting an air spring strut on a vehicle may include an air spring support bearing having a head bearing receiver, a head bearing having at least one cylindrical outer surface, and a piston rod that is axially guided through the head bearing and is sealed in an airtight manner relative to the head bearing. The head bearing may be positioned in the head bearing receiver of the air spring support bearing positioned coaxially relative to the piston rod. An airtight connection may be formed between the head bearing receiver and the head bearing. A press connection element may be positioned in direct contact with the head bearing receiver and the head bearing. A sealing element may be positioned in a region of the head bearing receiver between the air spring support bearing and the head bearing.

Abstract: A vibration damper with hydraulic damping of a pressure stage stop may include a working piston guided in a damper tube along a longitudinal axis. The working piston may be disposed on a piston rod leading out of the damper tube. For damping the pressure stage stop, a tubular body may be disposed in the damper tube, within which an auxiliary piston can be accommodated such that the auxiliary piston is guided along the longitudinal axis. A spring element may pre-stress the auxiliary piston towards the working piston. Upon a drive-in movement of the piston rod into the damper tube, a stop piston that is movable with the working piston comes to lie against the auxiliary piston and together with the auxiliary piston plunges into the tubular body under a hydraulic damping effect and under compression of the spring element. Consequently, a damping agent in the tubular body may flow through the auxiliary and stop pistons.

Abstract: A vibration damper may include a damper cylinder, a guiding closure that is held in the damper cylinder by a first clamping element, a piston rod that is axially guided in the guiding closure, and a piston rod functional group that is connected to the piston rod and disposed in the damper cylinder. At least one second clamping element may be connected to an internal wall of the damper cylinder, and a holding element may be disposed in the damper cylinder. The second clamping element can be disposed between the guiding closure and the holding element, and the holding element can be disposed between the second clamping element and the piston rod functional group. Further, the internal diameter of the second clamping element at least in portions is smaller than the external diameter of the holding element.

Abstract: Disclosed is a valve device for an air spring strut of an air suspension system of a motor vehicle, having a valve unit and a housing which receives the valve unit and has a bearing face for mounting a head bearing of the air spring strut on the valve device. The housing has a surface section for supporting the valve device in the air spring strut in a positively locking manner, with the result that a force which is exerted by the head bearing on the valve device can be introduced via the housing into the air spring strut. A supporting section is configured on the surface section of the housing, onto which supporting section an exchange element which can be disconnected from the housing can be arranged from the direction of a center longitudinal axis of the valve device for supporting on the housing in a positively locking manner.

Abstract: A receiving arrangement may be utilized by a lower end of a carrier spring on a damper tube of a shock absorber of a suspension strut, in particular for a vehicle. The receiving arrangement may include a bearing unit by way of which the damper tube can twist relative to the carrier spring about a longitudinal axis of the suspension strut. The bearing unit may include an upper bearing ring and a lower bearing ring, which bearing rings may be configured so they can slide on each other to form an axial bearing and a radial bearing between the carrier spring and the damper tube.

Abstract: A vibration damper for a motor vehicle may include a damper tube, a piston rod that moves in the damper tube, a working piston attached to the piston rod that divides the damper tube into two working spaces, and first and second damping valves each with an adjustable damping force. Damping liquid may pass through the first damping valve as the piston rod retracts and through the second damping valve as the piston rod extends. Each damping valve may include a valve body that can be moved by a separate, controllable drive device between a closed position and an open position to set a throughflow cross section of each respective damping valve. The valve bodies may be loaded by restoring means counter to an actuating force of the drive device. A first of the restoring means may load a first of the valve bodies into its open position, and a second of the restoring means may load a second of the valve bodies into its closed position.

Abstract: A vibration damper, which can be utilized in a chassis of a vehicle, may comprise a damper tube and a working piston that is guided in a longitudinal axis over an inner side of the damper tube. The vibration damper may also include a reinforcing sleeve that is positioned on an outer side of the damper tube. A receptive fork for attachment to the chassis can be arranged on the reinforcing sleeve. The reinforcing sleeve may be delimited in a direction of the longitudinal axis by a peripheral edge. In a region of the peripheral edge, a sealing element enclosing the outer side of the damper tube may be accommodated in the reinforcing sleeve. The peripheral edge may have a plastically deformed reshaping section that engages around the sealing element.

Abstract: A controllable shock absorber may include a cylinder tube with hydraulic fluid, a movable piston that divides the cylinder tube into two working spaces, and a piston rod connected to the piston. Two fluid leadthroughs in the piston may connect the two working spaces. Valve assemblies for damping piston movement in actuating directions may be arranged on the leadthroughs. Each valve assembly may have a pilot control chamber and a valve plate movable between open and closed positions. The valve plate can be prestressed into the closed position by pressure loading the pilot control chamber. Pressures in the pilot control chambers can be set by a pilot control valve having a valve body that is movable between open and closed positions. An outflow cross section between the pilot control chambers and the working spaces is settable.

Abstract: A head bearing arrangement for connecting a spring strut to a vehicle body includes a head bearing housing and a spring plate on which a load-bearing spring of the spring strut is supported. The spring plate is arranged on the head bearing housing. The spring plate is arranged on the head bearing housing by way of a conical seat, wherein a toothing is inserted in the conical seat between the spring plate and the head bearing housing.

Abstract: A vibration damper for a motor vehicle may comprise a damper outer tube, a damper inner tube having a lateral surface of the damper inner tube and arranged coaxially in the damper outer tube, a separating plate arranged coaxially in a region of the lateral surface of the damper inner tube, and a sealing element arranged coaxially circumferentially on the damper inner tube on the separating plate. In a region of the separating plate arranged coaxially on the lateral surface of the damper inner tube, a groove for the separating plate may be formed on the lateral surface of the damper inner tube. The separating plate may be arranged in the groove, and the connection between the groove and the separating plate may be press fit, at least in the radial direction.

Abstract: The present invention relates to a damping valve for a shock absorber, comprising a base body with a first support body and with a second support body and comprising one or more valve spring discs which separate a first damping fluid space from a second damping fluid space, wherein the valve spring discs are supported against the first support body via an inner edge support, and against the second support body via an outer edge support, and which control a passage of damping fluid in both directions by virtue of the fact that the valve spring discs lift-off either from the inner edge support or from the outer edge support, by elastic deflection. According to the invention, a stroke movable control body is provided which is prestressed against the valve spring discs, so that the control behaviour of the valve spring discs can be adjusted via the edge supports by the prestress of the control body.

Abstract: A regulable vibration damper may comprise a cylinder barrel that contains hydraulic fluid in a sealed manner, a piston that can be moved axially within the cylinder barrel along a cylinder barrel axis and that subdivides the cylinder barrel into two working chambers, a piston rod that is oriented parallel to the cylinder barrel axis and is connected to the piston, a valve assembly arranged at a fluid feed through to damp piston movement in an actuating direction, and a bypass duct between the two working chambers. The bypass duct may comprise a first throughflow cross section for a first throughflow direction, wherein the first throughflow cross section differs from a second throughflow cross section for a second throughflow direction. Further, the bypass duct may be formed, at least in part, by an outflow passage that is arranged on an exit side of a pilot valve for adjusting pilot pressure.

Abstract: A vibration damper for a vehicle chassis may comprise a damper tube, a piston rod that is movable in an oscillating manner in an axial direction in the damper tube, a working piston disposed on the piston rod, and a closure package that closes the damper tube and through which the piston rod is guided. A spring element that is disposed in a region between the working piston and the closure package may comprise an annular basic body that surrounds the piston rod to form an annular chamber, an upper side facing the closure package, and a lower side facing the working piston. To reduce vibrations and noise from reaching a vehicle body, the spring element may include a lip element on the upper and/or lower side, and a spring rigidity of the lip element may be lower than a rigidity of the annular basic body.

Abstract: A shock absorber having a shock absorber tube (10) is disclosed and has an external module tube (11) which is connected to the shock absorber tube (10) via a flange (12), wherein the flange (12) has one or more fluid ducts (13, 14) which fluidically couple the module tube (11) to the shock absorber tube (10). The flange (12) has at least one metallic support cage (15) which forms a retentive connection between the shock absorber tube (10) and the module tube (11), and the flange (12) has a plastics body (16) in which the fluid duct (13, 14) for the fluidic coupling of the module tube (11) to the shock absorber tube (10) is formed.

Abstract: A regulable vibration damper, which may be utilized in a vehicle chassis, for example, may comprise a cylinder barrel that contains hydraulic fluid in sealed-off fashion, a piston that is axially movable within the cylinder barrel along a cylinder barrel axis and that divides the cylinder barrel into two working chambers, and a piston rod oriented parallel to the cylinder barrel axis and that is connected to the piston. The piston may comprise at least two fluid leadthroughs that connect the working chambers. A first valve assembly for damping piston movement in a first actuation direction may be arranged at a first fluid leadthrough, and a second valve assembly for damping piston movement in a second actuation direction may be arranged at a second fluid leadthrough. In the piston, one or more bypass ducts with throughflow cross sections of different size for the two throughflow directions may form fluidic connections between the two working chambers that bypass the vestibules.

Abstract: A device for damping vibrations may comprise a hollow damper tube, a piston rod with a piston fastened thereto, at least one spring plate, and at least one securing element. The piston may be disposed within the damper tube, and the spring plate may be disposed outside the damper tube. To achieve a reliable connection between the spring plate and the damper tube in a cost-effective manner, the spring plate may be connected to the damper tube in both a force-fitting manner and a form-fitting manner. The present disclosure further concerns motor vehicles that employ such devices, as well as methods for fastening spring plates to damper tubes.

Abstract: A shock absorber having a shock absorber tube (10) is disclosed and has an external module tube (11) which is arranged retentively on the outside of the shock absorber tube (10) by a flange (12), wherein the flange (12) has one or more fluid ducts (13, 14) which fluidically couple the module tube (11) to the shock absorber tube (10). The flange (12) has a plastics body (15) in which the fluid ducts (13, 14) are formed, and the flange (12) furthermore has metallic connecting elements (16, 17) which extend between the shock absorber tube (10) and the module tube (11) and by which the mechanically retentive connection between the shock absorber tube (10) and the module tube (11) is formed.

Abstract: A cap for mounting on a damper tube of a vibration damper, having an outer shell region that is cylindrical at least in sections and at least one elastic spring tongue. At least one positively locking element is arranged on the spring tongue in order to produce a positively locking connection between the cap and a protective element of the vibration damper. The at least one spring tongue has a region which, in the non-mounted state of the cap, is set back inwardly in the radial direction with respect to the outer shell region. The set-back region has a spreading element, by way of which the spring tongue is spread outwardly in the radial direction during the mounting of the cap.