Abstract: Modules with variable acoustic properties configured for covering boundaries, such as walls or ceilings of a room, for instance a multi-purpose room, in which it must be possible to change the acoustical properties of the room, such as the reverberation time, according to each specific use, where the module has a front face provided with one or more through-openings through which sound energy can enter an inner region of the module, and where the module in the inner region comprises a sound absorbing device in acoustic communication with the through-openings in the front face such that sound energy can pass from an exterior region or space outside the module to said sound absorbing device, where the through-openings can be closed, such that sound energy cannot enter the sound absorbing device and opened, such that sound energy can enter the sound absorbing device.

Abstract: An energy absorption element for a steering column of a motor vehicle may comprise a deformation element, a first fastening element, and a second fastening element. The deformation element may be connected to the first fastening element and to the second fastening element and is arranged in a force flux with respect to a force that can be exerted on the first fastening element relative to the second fastening element. To achieve improved security against damage due to unauthorized use or inadvertent damage and, in the process, requiring little outlay on manufacturing and installation, a predetermined breaking element may be connected to the first and second fastening elements parallel to the deformation element in the force flux.

Abstract: An energy absorption element for a steering column of a motor vehicle may comprise a deformation element, a first fastening element, and a second fastening element. The deformation element may be connected to the first fastening element and to the second fastening element and is arranged in a force flux with respect to a force that can be exerted on the first fastening element relative to the second fastening element. To achieve improved security against damage due to unauthorized use or inadvertent damage and, in the process, requiring little outlay on manufacturing and installation, a predetermined breaking element may be connected to the first and second fastening elements parallel to the deformation element in the force flux.

Abstract: A steering column for a motor vehicle may include a holding element that is securable on a chassis of the motor vehicle, an adjustment element that is adjustable relative to the holding element and is configured to receive a steering shaft, and a locking device for locking the adjustment element relative to the holding element. The locking device may include a clamping lever that is movable between a locking position where the adjustment element is locked with respect to the holding element and an open position where the adjustment element is adjustable with respect to the holding element. The steering column may further include a retaining element that provides a form-fitting connection between the holding element and the adjustment element in the locking position of the clamping lever. The retaining element may include a slotted guide contour, which in the locking position of the clamping lever, is supported on a contact section of the clamping lever.

Abstract: A steering column for a motor vehicle may include a guide box that accommodates a steering spindle, a bracket for holding the guide box in adjustable fashion on a chassis of the motor vehicle, and a thrust piece through which a clamping shaft extends to fix the guide box relative to the bracket. The thrust piece may be arranged on an outer side of a first side web of the bracket, and the thrust piece may include a dome that extends through a slot of the first side web and serves to generate a force-fitting connection to the guide box.

Abstract: A steering column for a motor vehicle may include a holding element that is securable on a chassis of the motor vehicle, an adjustment element that is adjustable relative to the holding element and is configured to receive a steering shaft, and a locking device for locking the adjustment element relative to the holding element. The locking device may include a clamping lever that is movable between a locking position where the adjustment element is locked with respect to the holding element and an open position where the adjustment element is adjustable with respect to the holding element. The steering column may further include a retaining element that provides a form-fitting connection between the holding element and the adjustment element in the locking position of the clamping lever. The retaining element may include a slotted guide contour, which in the locking position of the clamping lever, is supported on a contact section of the clamping lever.

Abstract: A steering column for a motor vehicle may include a guide box that accommodates a steering spindle, a bracket for holding the guide box in adjustable fashion on a chassis of the motor vehicle, and a thrust piece through which a clamping shaft extends to fix the guide box relative to the bracket. The thrust piece may be arranged on an outer side of a first side web of the bracket, and the thrust piece may include a dome that extends through a slot of the first side web and serves to generate a force-fitting connection to the guide box.

Abstract: The cooling system cools the stator and/or the rotor of a generator. Oxidation-resistant cooling channels are provided in the stator and/or in the rotor. Low conductivity for the coolant flowing through the cooling circuit is ensured by feeding fresh coolant into the cooling circuit, whereby the fresh coolant has a lower electric conductivity than the coolant in the cooling circuit.

Abstract: The cooling system cools the stator and/or the rotor of a generator. A compensating container for compensating coolant is arranged in a parallel section that is connected in parallel with the cooling circuit. A calming section is additionally arranged in the cooling circuit for largely degassing the coolant.