Abstract: A cam phaser for a double camshaft, the cam phaser comprising: a rotor; and a stator, wherein the rotor is a rotatable relative to the stator about a rotor axis of the rotor that is coaxial to a longitudinal axis of the stator, wherein a radial vane of the rotor is positionable between two bars of the stator, wherein the radial vane divides an intermediary space formed between the two bars into two pressure cavities, wherein the double camshaft includes a first camshaft that is configured as a hollow cylinder and a second camshaft that is at least partially received in the first camshaft wherein the first camshaft and the second camshaft are rotatable relative to each other, wherein one of the first camshaft and the second camshaft is connected torque proof with the rotor and another of the first camshaft and the second camshaft is connected torque proof with the stator, wherein the rotor is movable by pressures in the two pressure chambers to cause a rotation of the first camshaft and the second camshaft rel

Abstract: A hydraulic valve for a cam phaser, the hydraulic valve comprising: a bushing including a piston that is movable in a bore along a longitudinal direction; a supply connection for feeding a hydraulic fluid; a first operating connection and a second operation connection; and a first tank drain connection and a second tank drain connection configured to drain the hydraulic fluid, wherein a first check valve is associated with the first operating connection and a second check valve is associated with the second operating connection, and the first operating connection and the second operating connection are connectable through at least one of the first check valve and the second check valve alternatively with each other or with the supply connection or with the first tank drain connection or with the second tank drain connection by moving the piston, wherein the hydraulic valve includes five switching positions,

Abstract: A camshaft arrangement includes an adjustable camshaft and an adjuster for adjusting the camshaft. The adjustable camshaft includes an outer shaft and an inner shaft arranged rotatably in the outer shaft. The adjuster includes a stator connected with the outer shaft in a rotationally fixed manner, and a rotor connected in a rotationally fixed inner with the inner shaft via an axially inserted coupling. A bush is connected with the rotor in a rotationally fixed manner and has at least one channel for supplying a lubricant. The bush has on a face side that axially faces the inner shaft a form that together with a counter-form on the inner shaft provides the axially inserted coupling.

Abstract: A hydraulic valve for a cam phaser, the hydraulic valve comprising: a bushing including a piston that is movable in a bore along a longitudinal direction; a supply connection for feeding a hydraulic fluid; a first operating connection and a second operation connection; and a first tank drain connection and a second tank drain connection configured to drain the hydraulic fluid, wherein a first check valve is associated with the first operating connection and a second check valve is associated with the second operating connection, and the first operating connection and the second operating connection are connectable through at least one of the first check valve and the second check valve alternatively with each other or with the supply connection or with the first tank drain connection or with the second tank drain connection by moving the piston, wherein the hydraulic valve includes five switching positions,

Abstract: A hydraulic valve, in particular a cartridge valve including a valve piston that is supported axially movable in a valve bushing and by which at least one operating connection, advantageously two operating connections are alternatively connectable with a supply connection and a tank drain, wherein the connections are configured with respect to a longitudinal axis of the valve bushing as slotted holes that extend over a limited distance in a circumferential direction and which are respectively protected by a screen element configured as a metal band which covers the slotted hole with a filter portion, wherein the screen element is arranged in a first groove enveloping the slotted hole and envelops the valve bushing in a second groove originating from the first groove on two sides, characterized in that the screen element includes a filter mask which includes a welding portion at a first end.

Abstract: A hydraulic valve, in particular a cartridge valve including a valve piston that is supported axially movable in a valve bushing and by which at least one operating connection, advantageously two operating connections are alternatively connectable with a supply connection and a tank drain, wherein the connections are configured with respect to a longitudinal axis of the valve bushing as slotted holes that extend over a limited distance in a circumferential direction and which are respectively protected by a screen element configured as a metal band which covers the slotted hole with a filter portion, wherein the screen element is arranged in a first groove enveloping the slotted hole and envelops the valve bushing in a second groove originating from the first groove on two sides, characterized in that the screen element includes a filter mask which includes a welding portion at a first end.