The invention relates to an engine control valve (1) which comprises a rotatable actuator (7), a valve (5), and a movement transformation device (9) suitable for transforming the rotation of the actuator (7) into translation of the valve (5). The movement transmission device (9) comprises a helical link with uniform pitch for translating the valve (5).

A valve for an exhaust gas line of an internal combustion engine in which a closure body is arranged in a duct and is positioned in a recess of a shaft, the closure body being pivotable about a rotation axis of the shaft. The closure body has two sides and a circumferential surface arranged between the two sides. The circumferential surface has sections with different external dimensions. A first external dimension of the circumferential surface of the closure body in a first section is smaller than the smallest internal dimension between end regions of the recess of the shaft in which the closure body sits. A second external dimension of the circumferential surface in a second section is greater than the smallest internal dimension of the recess of the shaft. The circumferential surface contacts the shaft in each of the two end regions of the recess.

A linear actuator for driving an actuating member of an internal combustion engine of a motor vehicle, the linear actuator having two rolling bearings for scanning mutually opposing sides of a rib that is formed as a guide curve. The rib has a variable width, against which the two sensing bodies are biased to reduce or eliminate undesired reaction forces.

A linear actuator for driving an actuating member of an internal combustion engine of a motor vehicle, the linear actuator having two rolling bearings for scanning mutually opposing sides of a rib that is formed as a guide curve. The rib has a variable width, against which the two sensing bodies are biased to reduce or eliminate undesired reaction forces.

An EGR apparatus includes a EGR passage and an EGR valve provided in the EGR passage to regulate an EGR flow rate in the EGR passage. An ECU closes the EGR valve from an open state prior to start of deceleration of the engine based on engine rotation speed detected by a rotation speed sensor, accelerator opening degree detected by an accelerator sensor, and actual opening degree of the EGR valve. During deceleration of the engine, the ECU obtains a target opening degree of the EGR valve according to the separately detected engine rotation speed and accelerator opening degree from a target opening degree map and starts to close the EGR valve when a difference between an actual opening degree and the target opening degree of the EGR valve exceeds a predetermined value.

An EGR apparatus includes a EGR passage and an EGR valve provided in the EGR passage to regulate an EGR flow rate in the EGR passage. An ECU closes the EGR valve from an open state prior to start of deceleration of the engine based on engine rotation speed detected by a rotation speed sensor, accelerator opening degree detected by an accelerator sensor, and actual opening degree of the EGR valve. During deceleration of the engine, the ECU obtains a target opening degree of the EGR valve according to the separately detected engine rotation speed and accelerator opening degree from a target opening degree map and starts to close the EGR valve when a difference between an actual opening degree and the target opening degree of the EGR valve exceeds a predetermined value.

A mixing valve of an internal combustion engine of a motor vehicle includes: a flap arranged in a suction channel and a flap arranged in an exhaust gas channel. One single flap of the two flaps is drivable via a gear pair with non-round or eccentric gears. The drive of the other flap has lost motion, whereby the closing movements of the flaps can be formed in a particularly free manner with only a single actuating motor.

A mixing valve of an internal combustion engine of a motor vehicle includes: a flap arranged in a suction channel and a flap arranged in an exhaust gas channel. One single flap of the two flaps is drivable via a gear pair with non-round or eccentric gears. The drive of the other flap has lost motion, whereby the closing movements of the flaps can be formed in a particularly free manner with only a single actuating motor.

A sensor is used to detect the position of a movable part, and comprises a pointer rigidly connected to the movable part and, a circuit structure interacting with the pointer. A component of the circuit structure is arranged on the side of the circuit structure facing away from the pointer.

A sensor is used to detect the position of a movable part, and comprises a pointer rigidly connected to the movable part and, a circuit structure interacting with the pointer. A component of the circuit structure is arranged on the side of the circuit structure facing away from the pointer.