Abstract: A shock absorber comprises a housing having a work space, damping fluid present in the work space, a piston unit arranged in the work space with a piston rod having a longitudinal axis, a piston secured to the piston rod, dividing the work space into a first partial work space and a second partial work space, a flow channel connecting the first partial work space and the second partial work space, an adjustment unit for adjusting the damping force of the shock absorber with an adjustment element for adjusting the effective flow cross section area of the flow channel, an adjustment actuator for the automated adjusting of an arrangement of the adjustment element and the piston rod, wherein the adjustment unit is arranged inside the shock absorber.

Abstract: A damper comprises a housing having a working chamber; damping fluid located in the working chamber; a piston unit arranged in the working chamber, having a piston rod having a longitudinal axis, a piston fastened to the piston rod, said piston subdividing the working chamber into a first working chamber part and into a second working chamber part, a through-flow duct connecting the first working chamber part and the second working chamber part; an adjusting unit for adjusting the damping force of the damper, having an adjusting element for adjusting the effective flow cross-sectional area of the through-flow duct, an adjusting actuator for automatically adjusting an arrangement of the adjusting element and of the piston rod, a force transmission device for transmitting an actuating force provided by the adjusting actuator, wherein the adjusting actuator is arranged outside the housing.

Abstract: Damper including a housing enclosing a working chamber and a compensating chamber, a damping fluid located at least partially in the working chamber, a guide and sealing unit, which terminates the housing at a first housing end, a piston rod sealed by the guide and sealing unit, and guided out of the housing, and a piston fastened to the piston rod and guided in the housing along the center longitudinal axis of the damper. The piston divides the working chamber into first and second part working chambers. Arranged at the end of the first and second working chambers, respectively, is a first and second closing element, with respective compensating channels, which form a through-flow connection between the respective working chamber and the compensating chamber. The piston device has at least one through-flow channel connecting the two part working chambers and having an adjustable effective flow cross-section.

Abstract: A damper for damping a movement along a middle-longitudinal-axis, in particular for damping a seat in a vehicle, includes an outer housing extending along the middle-longitudinal-axis, a guiding and sealing unit closing a first housing end, a piston rod sealed by the guiding and sealing unit guided, an inner housing, which surrounds a working chamber, a damping fluid, a second housing end opposite the first housing end and a piston guided in the inner housing along the middle-longitudinal-axis and secured to the piston rod. The piston divides the working chamber into a first part-working chamber and a second part-working chamber. The piston includes at least one throughflow channel for connecting the chambers, an equalizing chamber arranged between the inner housing and the outer housing and a throttling channel integrated into the guiding and sealing unit. The throttling channel has a cross-sectional area comprising a length and an internal width.

Abstract: A damper for damping a movement along a middle-longitudinal-axis, in particular for damping a seat in a vehicle, includes an outer housing extending along the middle-longitudinal-axis, a guiding and sealing unit closing a first housing end, a piston rod sealed by the guiding and sealing unit guided, an inner housing, which surrounds a working chamber, a damping fluid, a second housing end opposite the first housing end and a piston guided in the inner housing along the middle-longitudinal-axis and secured to the piston rod. The piston divides the working chamber into a first part-working chamber and a second part-working chamber. The piston includes at least one throughflow channel for connecting the chambers, an equalizing chamber arranged between the inner housing and the outer housing and a throttling channel integrated into the guiding and sealing unit. The throttling channel has a cross-sectional area comprising a length and an internal width.

Abstract: Damper comprising a housing, which encloses a working chamber and a compensating chamber and has a centre longitudinal axis, a damping fluid located at least partially in the working chamber, a guide and sealing unit, which terminates the housing at a first housing end, a piston device comprising a piston rod, which, sealed by the guide and sealing unit, is guided out of the housing, and a piston fastened to the piston rod and guided in the housing along the centre longitudinal axis, wherein the piston divides the working chamber into a first part working chamber with a first working chamber end and a second part working chamber with a second working chamber end, arranged at the first working chamber end is a first closing element, with a first compensating channel, which forms a through-flow connection between the first part working chamber and the compensating chamber, arranged at the second working chamber end is a second closing element, with a second compensating channel, which forms a through-flow conne