Abstract: An electromagnetic valve for an anode supply of a fuel cell system, the electromagnetic valve configured as a purge or drain valve including an actuator including a magnet coil configured to electromagnetically actuate an armature, and a valve plunger operatively connected with the armature; a valve seat openable and closable as a function of an actuation of the valve plunger so that a media connection between an inlet and an outlet is controlled through a valve chamber, wherein the valve seat and the inlet are configured at a connection spout connected with the actuator, and wherein an additional magnet coil is provided as a heating coil.

Abstract: A support arrangement for an electromagnetic actuator of a hydraulic cam phaser, the support arrangement including an actuator module including a linear electromagnetic actuator including an axially displaceable connecting rod; and a support element configured to support the actuator module on a camshaft, wherein the actuator module is connected to the support element by an electrical contact arrangement configured to actuate the linear electromagnetic actuator, and wherein the electrical contact arrangement includes an elastic clamping element.

Abstract: An oil control valve for a cam phaser of an internal combustion engine, the oil control valve including a valve housing, including a first operating connection, a second operating connection, a supply connection, and a tank drain connection configured to drain a hydraulic fluid; a piston assembly, including a piston, a hollow check valve tube, a first check valve and a second check valve configured to provide cam torque recirculation, wherein the piston assembly is arranged in the housing axially displaceable by an actuator, wherein a control chamber is arranged within the piston between the first check valve and the second check valve and wherein a check valve compression spring which closes the first check valve and the second check valve is arranged within the piston between the first check valve and the second check valve.

Abstract: An arrangement configured to introduce a force from a fastening element into a plastic component, the arrangement including a force-limiting element that is embedded in the plastic component; wherein the fastening element is configured to fasten the plastic component at a body; wherein the fastening element is insertable through the force-limiting element, and wherein the plastic component includes a retention device which protrudes at least partially into an interior of the force-limiting element so that the fastening element that is inserted into the force-limiting element is retained in the force limiting element.

Abstract: An oil control valve for a cam phaser of an internal combustion engine, the oil control valve including a valve housing, including a first operating connection, a second operating connection, a supply connection, and a tank drain connection configured to drain a hydraulic fluid; a piston assembly, including a piston, a hollow check valve tube, a first check valve and a second check valve configured to provide cam torque recirculation, wherein the piston assembly is arranged in the housing axially displaceable by an actuator, wherein a control chamber is arranged within the piston between the first check valve and the second check valve and wherein a check valve compression spring which closes the first check valve and the second check valve is arranged within the piston between the first check valve and the second check valve.

Abstract: A control valve for a cam phaser of an internal combustion engine, the control valve including a cylindrical housing, including a first operating connection, a second operating connection, a supply connection, and a tank drain connection configured to drain a hydraulic fluid; a control piston device, including a control piston, a supply tube, a first check valve and a second check valve enabling cam torque recirculation, wherein the control piston device is arranged in the housing and axially movable by an actuator, wherein the first check valve is configured with a first disc portion and a second disc portion and the second check valve is configured with a third disc portion and a fourth disc portion and the first check valves and the second check valve are arranged offset from each other by a compression coil spring.

Abstract: An arrangement configured to introduce a force from a fastening element into a plastic component, the arrangement including a force-limiting element that is embedded in the plastic component; wherein the fastening element is configured to fasten the plastic component at a body; wherein the fastening element is insertable through the force-limiting element, and wherein the plastic component includes a retention device which protrudes at least partially into an interior of the force-limiting element so that the fastening element that is inserted into the force-limiting element is retained in the force limiting element.

Abstract: An actuator for a cam phaser, the cam phaser including a hydraulic valve that is adjustable by the actuator, wherein the actuator is receivable at a housing section of a component that receives the cam phaser, wherein the actuator includes a retaining element and a housing with functionally relevant components, wherein the actuator is attached by the retaining element at the housing section, wherein the retaining element is configured separate from the housing, wherein safe positioning of the actuator at the housing section is provided by a section of the retaining element that supports the actuator at the housing section in a direction of an axial orientation of the actuator, and wherein a housing cover of the housing is at least partially arranged between the section of the retaining element and the housing section.

Abstract: A piston for a hydraulic unit of a cam phaser, wherein the piston is configured cylindrical and wherein the piston is received axially movable in a cam phaser opening of the cam phaser, wherein according to a positioning of the piston a plurality of connections, in particular operating connections of the cam phaser are opened and closed, wherein the piston includes an outer contour that is configured for opening or closing the connections wherein the outer contour is configured complementary to an inner contour of the cam phaser opening in order to provide opening and/or closing of the connections. The invention also relates to a cam phaser.

Abstract: A support arrangement for an electromagnetic actuator of a hydraulic cam phaser, the support arrangement including an actuator module including a linear electromagnetic actuator including an axially displaceable connecting rod; and a support element configured to support the actuator module on a camshaft, wherein the actuator module is connected to the support element by an electrical contact arrangement configured to actuate the linear electromagnetic actuator, and wherein the electrical contact arrangement includes an elastic clamping element.

Abstract: A support arrangement for an actuator of a cam phaser, the support arrangement including an actuator module including an actuator; and a support element configured to support the actuator module on a camshaft, wherein the actuator module is connected to the support element by an electrical contact arrangement configured to actuate the actuator, and wherein the electrical contact arrangement includes an elastic clamping element.

Abstract: A control valve for a cam phaser of an internal combustion engine, the control valve including a cylindrical housing, including a first operating connection, a second operating connection, a supply connection, and a tank drain connection configured to drain a hydraulic fluid; a control piston device, including a control piston, a piston shaft, a first check valve, and a second check valve; wherein the control piston device is arranged in the housing and movable by an actuator in an axial direction of the housing, wherein the first check valve is configured with a first piston disc and the second check valve is configured with a second piston disc and the first piston disc and the second piston disc are arranged offset from each other by a torsion spring so that a control chamber is formed between the first piston disc and the second piston disc.

Abstract: A support arrangement for an actuator of a cam phaser, the support arrangement including an actuator module including an actuator; and a support element configured to support the actuator module on a camshaft, wherein the actuator module is connected to the support element by an electrical contact arrangement configured to actuate the actuator, and wherein the electrical contact arrangement includes an elastic clamping element.

Abstract: An oil control valve for a cam phaser of an internal combustion engine where the spool is positioned by an external actuator. The valve includes a spool assembly including a spool that is axially movable in a central opening, and there is at least one groove in the spool. The groove substantially increases fluid flow through the hydraulic valve when opened. By controlling the size and position of the groove, the amount of the fluid flow may be controlled. Further fluid flow control may be had by controlling the size of holes in the spool. The increase of fluid flow attributable to the groove may be at least 50%, 100% or even 200% compared with the at least one groove being absent.

Abstract: A control valve for a cam phaser of an internal combustion engine, the control valve including a cylindrical housing, including a first operating connection, a second operating connection, a supply connection, and a tank drain connection configured to drain a hydraulic fluid; a control piston device, including a control piston, a piston shaft, a first check valve, and a second check valve; wherein the control piston device is arranged in the housing and movable by an actuator in an axial direction of the housing, wherein the first check valve is configured with a first piston disc and the second check valve is configured with a second piston disc and the first piston disc and the second piston disc are arranged offset from each other by a torsion spring so that a control chamber is formed between the first piston disc and the second piston disc.

Abstract: A center bolt oil control valve including a valve housing, a piston within the valve housing, and a calibration cap having at least a pressure check valve and filter. The calibration cap is located within the valve housing and is extending out an end of the valve housing. A supply pressure port may be placed in the valve housing, wherein the supply pressure port supplies a hydraulic fluid to ports in the valve housing depending on a position of the piston. The valve housing includes a threaded portion and is fastened to a cam nose with the threaded portion, wherein a supply pressure port of the cam nose is adjacent the threaded portion. This valve provides improved design flexibility, especially for axial constrained applications.

Abstract: An oil control valve for a cam phaser of an internal combustion engine where the spool is positioned by an external actuator. The pressure enters the end of the oil control valve where the resultant pressure force is balanced by the differential area of the spool. The spool contains two plate check valves enabling cam torque recirculation of oil from A to B or B to A depending upon the spool position. In mid position, the spool lands block A and B to hold the cam phaser position. Three or five positions may be utilized.

Abstract: A center bolt oil control valve including a valve housing, a piston within the valve housing, and a calibration cap having at least a pressure check valve and filter. The calibration cap is located within the valve housing and is extending out an end of the valve housing. A supply pressure port may be placed in the valve housing, wherein the supply pressure port supplies a hydraulic fluid to ports in the valve housing depending on a position of the piston. The valve housing includes a threaded portion and is fastened to a cam nose with the threated portion, wherein a supply pressure port of the cam nose is adjacent the threaded portion. This valve provides improved design flexibility, especially for axial constrained applications.

Abstract: A piston for a hydraulic unit of a cam phaser, wherein the piston is configured cylindrical and wherein the piston is received axially movable in a cam phaser opening of the cam phaser, wherein according to a positioning of the piston a plurality of connections, in particular operating connections of the cam phaser are opened and closed, wherein the piston includes an outer contour that is configured for opening or closing the connections wherein the outer contour is configured complementary to an inner contour of the cam phaser opening in order to provide opening and/or closing of the connections. The invention also relates to a cam phaser.

Abstract: An oil control valve for a cam phaser of an internal combustion engine where the spool is positioned by an external actuator. The valve includes a spool assembly including a spool that is axially movable in a central opening, and there is at least one groove in the spool. The groove substantially increases fluid flow through the hydraulic valve when opened. By controlling the size and position of the groove, the amount of the fluid flow may be controlled. Further fluid flow control may be had by controlling the size of holes in the spool. The increase of fluid flow attributable to the groove may be at least 50%, 100% or even 200% compared with the at least one groove being absent.