A spring-damper system for use in bearings or as a damper, in particular as a spring-damper system in active engine bearings includes a coupling device which can be coupled to a load and to a supporting device at a bearing or damping point, in order to mount the load in such a way that it can vibrate on the supporting device. The coupling device is designed to transmit a load input generated by the load substantially without loss to a spring-damper device and to absorb a reaction thereto by the spring-damper device and to feed said reaction back to the load, in order to counteract the load input in a vibration-damping fashion. In this context, the spring-damper device can be arranged and/or is arranged spatially separate from the bearing or damping point.

A spring-damper system for use in bearings or as a damper, in particular as a spring-damper system in active engine bearings includes a coupling device which can be coupled to a load and to a supporting device at a bearing or damping point, in order to mount the load in such a way that it can vibrate on the supporting device. The coupling device is designed to transmit a load input generated by the load substantially without loss to a spring-damper device and to absorb a reaction thereto by the spring-damper device and to feed said reaction back to the load, in order to counteract the load input in a vibration-damping fashion. In this context, the spring-damper device can be arranged and/or is arranged spatially separate from the bearing or damping point.

Embodiments of isolators, such as three parameter isolators, including a main spring linear guide system are provided. In one embodiment, the isolator includes first and second opposing end portions, a main spring mechanically coupled between the first and second end portions, and a linear guide system extending from the first end portion, across the main spring, and toward the second end portion. The linear guide system expands and contracts in conjunction with deflection of the main spring along the working axis, while restricting displacement and rotation of the main spring along first and second axes orthogonal to the working axis.

An air spring assembly or air spring damper with an integrated valve control for controlling a level position of a vehicle or of a driver's cab includes a rolling tube, a lid and an air spring bellows which together delimit a pressure chamber with compressed air. A control valve includes an actuation device for feeding compressed air into the pressure chamber or for discharging compressed air from the pressure chamber. A compression spring device has a first end operatively connected to the rolling piston or the lid and a second end operatively connected to the actuation device. The compression spring device is configured with at least two parts including a central spring facing towards the rolling piston or the lid and a control valve biasing spring facing towards the control valve. The central spring is biased to a greater extent than the control valve biasing spring.

The invention relates to a movement-damping unit (30) comprising a receiving tube (32) having a longitudinal axis (A), a relative movement unit (34) which is received in the receiving tube (32) and which is displaceable back and forth relative to the receiving tube (32) substantially in the direction of the longitudinal axis (A), and a friction device (41) acting between the receiving tube (32) and the relative movement unit (34). According to the invention, the friction device (41) comprises at least one switching element (44, 48) assigned to the relative movement unit (34) and having an engagement portion (48a) formed so as to widen radially in the direction of the longitudinal axis (A), wherein at least one resiliently compressible friction element (46, 50), which comprises a recess (50a) intended for engagement with the engagement portion (48a) and is arranged on the longitudinal face of smaller diameter of the switching element (44, 48), is assigned to each switching element (44, 48).

An antenna for satellite communication includes; a signal transmitting and receiving unit for receiving or transmitting a signal from/to the satellite; a driving unit for rotating the signal transmitting and receiving unit so as to enable the signal transmitting and receiving unit to track the satellite; an anti-vibration unit provided inside the posts for elastically supporting the signal transmitting and receiving unit or the driving unit. Therefore, by providing the anti-vibration unit inside the posts, it is possible to increase availability for a circumferential space of the posts and to simplify the structure of the anti-vibration unit.

A utility vehicle is disclosed. The utility vehicle may include storage areas under the dash. The utility vehicle may include suspension systems for utility vehicles having shocks with both a fluidic stiffness adjustment and a mechanical stiffness adjustment. The utility vehicle may include an electrical power steering.

A method of pressuring an accumulator including an end cap and a floating piston comprises positions the floating piston outside an inner volume of the end cap. Pressurized gas is supplied to the inner volume through an open end of the end cap. The floating piston is inserted through the open end and sealing engagement with the end cap to define a pressurized gas chamber within the end cap. The method further includes mechanically deforming the end cap to define a radially inwardly extending projection that restricts removal of the floating piston from the end cap.

A device for mounting a load to a carrier is described. The device includes a first support configured for fixation to the carrier; a second support configured for fixation to the load. The first and second supports are spaced away from each other viewed along a main load bearing axis of the device. The device further includes an outer shell extending along the main load bearing axis, and an inner member that is within the outer shell. The device includes a damping material connecting the inner member to at least the outer shell, wherein one of the outer shell and the inner member connects the first support and the second support to each other.

An electronic semi active control engine mount having a variable air chamber includes a variable air chamber diaphragm that absorbs the exciting force of fluid due to an external force by elastically deforming. An air chamber supports the variable air chamber diaphragm with the atmospheric pressure. A fork is separated from the diaphragm to keep the air chamber into which air flows in idling of an engine, and comes in close contact with the variable air chamber diaphragm to remove the air chamber into which the air flows when a vehicle is driven. An actuator either separates the fork from the variable air chamber diaphragm or allows the fork to be in close contact with the variable air chamber diaphragm.