Abstract: A device for adjusting length, height and/or tilt of a steering column of a motor vehicle and including a steering column tube for receiving a steering column therein, a guide rail for supporting the steering column tube with a possibility of a longitudinal displacement of the steering column tube along the guide rail, a bolt extending through a tubular axle and into the steering column tube through an elongate hole provided in a wall of the steering column tube parallel to a longitudinal extent of the steering column tube and having longitudinal edges provided with serrated slats, a shaped member located in an interior of the steering column tube and having serrated slats engageable with the serrated slats of the longitudinal edges, with the bolt having an inner end fixedly connected with the shaped member, and at least one connecting link located on a side of an actuating lever adjacent to a component fixedly secured to the chassis and displaceable along the tubular axle upon pivoting of the actuating lever

Abstract: The drawing-in machine has a needle-shaped drawing-in member (7) which is driveable in an oscillating manner and comprises a flexible gripper band (16) which carries a clamping gripper (17) and a channel-like guide (18) for the drawing-in member (7).

Abstract: In a gas dynamic pressure wave supercharger for vehicle internal combustion engines, at least one of the two mutually facing end surfaces of the rotor and the air casing is made convex on the air casing side in order to maintain an axial clearance which increases radially from the inside to the outside. On the gas casing side, at least one of the two mutually facing end surfaces of the rotor and the gas casing is made concave in order to maintain an axial clearance which decreases in the cold condition radially from the inside to the outside. The concave or convex end surfaces can be formed as truncated cone surfaces or as spherical surfaces. By the appropriate shaping of the rotor and casing end surfaces, the thermal expansion and rotor vibrations are compensated and the supercharger can run with a small axial clearance and good efficiency.