Abstract: The sensor unit for a sensor/transmitter system is used to capture at least rotational and linear movements of a component (1) having magnetic poles. The sensor unit has at least one sensor which is at least one electrically conductive conductor bar (5) which is transverse with respect to the direction of movement of a magnetic field of the component (1). The relative movement between the magnetic field and the conductor bar (5) produces a voltage at said conductor bar, which voltage can be supplied to evaluation electronics (4).

Abstract: An adjustable valve control device for an internal combustion engine with a drive shaft, with a camshaft 1 rotated by the drive shaft, and with at least one valve actuated by the camshaft 1 with a specific timing. The valve control device modifies the rotary phase of the camshaft 1 relative to the drive shaft in order to modify the timing of at least one valve and comprises a first rotor 2 which rotates synchronously with the drive shaft, a second rotor 3 which rotates synchronously with the camshaft 1, and a lock bolt 14 for locking the first rotor 2 and the second rotor 3 relative to each other. Fluid is applied to the lock bolt 14 by way of a separate line 15 to lock the rotors and is removed to unlock the rotors.

Abstract: A sealing ring has a support member and a sealing lip connected to the support member. The sealing lip rests against a machine part to be sealed. The sealing lip has a passage for the machine part, wherein the passage points to an air side of the machine part to be sealed and has a contact side provided with a return conveying device for a medium to be sealed at a medium side of the machine part. The return conveying device is an alternating twist structure that is formed by angularly staggered, crossing elliptical structures, crossing straight structures, sine-shaped structures, or arcs.

Abstract: In an adjustable valve control device for an internal combustion engine with a drive shaft, with a camshaft 1 rotated by the drive shaft, and with at least one valve actuated by the camshaft 1 with a specific timing, the valve control device modifying the rotary phase of the camshaft 1 relative to the drive shaft in order to modify the timing of at least one valve, comprising a first rotor 2 which rotates synchronously with the drive shaft, comprising a second rotor 3 which rotates synchronously with the camshaft 1, and comprising a lock bolt 14 for locking the first rotor 2 and the second rotor 3 relative to each other, it is proposed that fluid be applied to the lock bolt 14 by way of a separate line 15. It is claimed for the invention that the lock bolt 14 may always be locked and released without problems.