Abstract: An actuator for actuating a non-camshaft driven lift valve (12) of an internal combustion engine (10) includes a reciprocating tappet (20) that is coupled to the lift valve (12), a target ring (26) being attached to the outer circumference of the tappet, the target ring (26) having at least one slit and being made as a separate prefabricated part and consisting of an Fe-based material or of a ferritic material.

Abstract: An actuator for actuating a non-camshaft driven lift valve (12) of an internal combustion engine (10) includes a reciprocating tappet (20) that is coupled to the lift valve (12), a target ring (26) being attached to the outer circumference of the tappet, the target ring (26) having at least one slit and being made as a separate prefabricated part and consisting of an Fe-based material or of a ferritic material.

Abstract: A device for rotating a valve for producing rotations of a gas charging valve in an internal combustion engine during its opening and closing movements. The device has a basic body having a plurality of pockets oriented in a peripheral direction for receiving rolling bodies. There is also a valve shaft disposed in the basic body. In addition, there is also a plurality of rolling bodies and a plurality of tangential springs for holding the plurality of rolling bodies adjacent to the plurality of pockets on the basic body. Finally, there is a cover serving as a valve spring support and force transmitter or energy reservoir for each of the valve rotations, wherein the basic body and the cover consist of reshaped metal components. This design allows for a simple construction process resulting in lower manufacture costs.

Abstract: A device for rotating a valve for producing rotations of a gas charging valve in an internal combustion engine during its opening and closing movements. The device comprises a basic body having a plurality of pockets oriented in a peripheral direction for receiving rolling bodies. There is also a valve shaft disposed in the basic body. In addition, there is also a plurality of rolling bodies and a plurality of tangential springs for holding the plurality of rolling bodies adjacent to the plurality of pockets on the basic body. Finally, there is a cover serving as a valve spring support and force transmitter or energy reservoir for each of the valve rotations, wherein the basic body and the cover consist of reshaped metal components. This design allows for a simple construction process resulting in lower manufacture costs.

Abstract: A valve gear controls a gas exchange in an internal-combustion engine with a valve spring which holds a valve in its required position at all times and is clamped between a valve head and a valve-spring support. The valve spring support is adjustable in the direction of the valve axis. The adjustable valve-spring support includes two nested setting rings (2, 3) which are rotatable in opposite directions.