An actuator whose total length can be reduced is provided. An actuator (2) includes: a casing (7); a hollow shaft (8) rotatably supported by the casing (7) via a bearing (9a, 9b), the hollow shaft (8) including a bottom portion (8b); a screw shaft (14) coupled to the bottom portion (8b) of the hollow shaft (8), the screw shaft (14) sharing a common center line with the hollow shaft (8); and a nut (15) threadedly connected to the screw shaft (14). The nut (15) is capable of moving in an axial direction of the screw shaft (14) to enter between the hollow shaft (8) and the screw shaft (14).

A level adjustment device for a vehicle, comprising a damping device having a piston-cylinder unit and a screw drive, and an adapter sleeve that axially supports a spindle of the screw drive and includes a flange directed radially inwards, wherein the adapter sleeve is configured to utilize the screw drive and is decoupled in relation to a cylinder of the piston-cylinder unit via one or more elastic elements.

A level adjustment device for a vehicle, comprising a damping device having a piston-cylinder unit and a screw drive, and an adapter sleeve that axially supports a spindle of the screw drive and includes a flange directed radially inwards, wherein the adapter sleeve is configured to utilize the screw drive and is decoupled in relation to a cylinder of the piston-cylinder unit via one or more elastic elements.

An energy conversion assembly including an input shaft coupled to a first annular gear through a first direction limiting device configured to allow rotation of the first annular gear in a first direction and substantially inhibit rotation of the first annular gear in a second direction. The input shaft may be coupled to a second annular gear through a second direction limiting device configured to allow rotation of the second annular gear in the second direction and substantially inhibit rotation of the second annular gear in the first direction. The assembly may include a first transmitting gear engaged with the first annular gear, a second transmitting gear engaged with the second annular gear, a conversion gear operatively coupled to the second transmitting gear, and a transmitting shaft coupled to the first transmitting gear and the conversion gear.

A shock absorber device for a vehicle, the shock absorber device comprising a shock absorber and a lifting device, the lifting device being configured to adjust a length of the shock absorber along the axis between a second length and the first length, the second length being less than the first length, wherein the lifting device has a released configuration wherein the lifting device allows the first part and the second part to axially move with regard to each other along the axis and an engaged configuration wherein the lifting device axially couples the first part and the second part together.

Disclosed is a re-configurable sensor arrangement (100) including a sensor device (110) and a controller device (120), both being configured to communicate with each other, wherein the controller device (120) is configured to transmit a pulse modulated signal (130) to the sensor device (110) via a one-wire voltage interface (140), and wherein the sensor device (110) is configured to receive the pulse modulated signal (130) via the one-wire voltage interface (140) and to re-configure its internal configuration in response to the received pulse modulated signal (130).