Abstract: A piston engine (10), in particular in a motor vehicle, has a plurality of cylinders (3) whose combustion chambers (4) are connected to a fresh gas system (5). The fresh gas system (5) has two gas paths, namely a full-load path (9) and a partial-load path (10), for at least one of the cylinders (3), through which the fresh gas (6) can be supplied to the respective combustion chamber (4). To this end, a valve arrangement (11) at the intake end is provided for controlling the fresh gas stream through the gas paths (9, 10) into the respective combustion chamber (4).

Abstract: The present invention relates to an electromagnetic actuator drive (1) for adjusting an actuator drive among at least three positions, comprising a soft magnetic armature (2) which is drive-coupled to the final controlling element and has a plurality of armature faces (5, 6), a plurality of soft magnetic pole elements (7) having a plurality of pole faces (8, 9) on which the armature faces (5, 6) come to rest in two end positions of the armature (2) a restore position (10) which drives the armature (2) by spring force into a horizontal starting position, and a holding device (11) with the help of which the armature (2) can be secured in its end positions by electromagnetic forces.

Abstract: A piston engine (10), in particular in a motor vehicle, has a plurality of cylinders (3) whose combustion chambers (4) are connected to a fresh gas system (5). The fresh gas system (5) has two gas paths, namely a full-load path (9) and a partial-load path (10), for at least one of the cylinders (3), through which the fresh gas (6) can be supplied to the respective combustion chamber (4). To this end, a valve arrangement (11) at the intake end is provided for controlling the fresh gas stream through the gas paths (9, 10) into the respective combustion chamber (4).

Abstract: The present invention relates to an electromagnetic actuator drive (1) for adjusting an actuator drive among at least three positions, comprising a soft magnetic armature (2) which is drive-coupled to the final controlling element and has a plurality of armature faces (5, 6), a plurality of soft magnetic pole elements (7) having a plurality of pole faces (8, 9) on which the armature faces (5, 6) come to rest in two end positions of the armature (2) a restore position (10) which drives the armature (2) by spring force into a horizontal starting position, and a holding device (11) with the help of which the armature (2) can be secured in its end positions by electromagnetic forces.

Abstract: A filter cartridge having pleated filter material, the ends of which are joined together to form a conical tube. At least one band is bonded to the pleated filter material and extends at least partially around the circumference of the material in the area of each of its end sides. The band may be bonded to crease points of the filter material. A method of manufacturing the filter cartridge includes providing the initially strip-shaped, planar filter material with pleats. The pleated strip-shaped filter material is laid out forming an unwound cone-shaped shell. A band is placed onto the crease points of one side and is bonded to the crease points. Subsequently, the filter material is bent to form a conical tube, and the tube is closed upon itself by joining the two ends together.