Abstract: 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).

Abstract: The invention relates to a device for actuating one or more moving parts, notably for a motor vehicle turbocharger, said device comprising a drive shaft, an output shaft and a transmission system transmitting torque from said drive shaft to said output shaft, said drive train comprising at least one wheel (8a,8b) transmitting torque from said drive shaft to said output shaft, said drive and output shafts and said transmission wheel or wheels (8a, 8b) being able to rotate about respective pivot axes (10m, 10a, 10b, 10s). According to the invention, the pivot axis of at least one of said transmission wheels (8a, 8b) is offset from a plane P passing through the pivot axis of said drive shaft and output shaft.

Abstract: Exhaust gas recirculation circuit comprising: at least one valve (100) comprising a body defining a first duct (1) opening into a second duct (2) thereby defining an intersection that forms a seat (7) at right angles to the second duct (2), a valve disk (8) that slides in the first duct (1) at right angles to the seat(7) between a closed position and an open position in which the valve disk (8) lies into close proximity to a wall (5) of the first duct (1) lying facing the seat (7), the valve (100) comprising means of actuating (12) the valve disk (8) from its closed position to its open position and an elastic spring mechanism bringing the valve disk (8) to its closed position, an exhaust pipe (24) connected to the first duct (1) of the valve (100), an intake pipe (31) connected to the second duct (2) of the valve (100), the circuit being arranged to define a flow direction for a gas flow from the first duct (1) to the second duct (2) in such a manner as the gas flow tends to bring the valve disk (8) in the c

Abstract: The invention relates to A device for transforming a rotation of a gear into a translation of a slide, the device including a supporting member provided with a fixed tubular wall translatably connected to the slide by a cam channel, the gear being rotatably mounted on the supporting member and rotatably connected to the slide which is suitable for pivoting about an axis. The gear comprises a ring rotatably mounted on the tubular wall of the supporting member.

Abstract: The invention relates to a device for converting a rotational movement into a translational movement, said device comprising: a first element (303) that is rotated around a stationary center of rotation (401) by a rotation means (301); a second element (307) that is translated along a translation axis (311) by rotating the first element (303); a cam (305) that is rigidly connected to the first element (303), said cam (305) having a cam channel (306) in which a roller (308) moves, wherein said roller is rigidly connected to the second element (307). Said device is characterized in that the cam channel (306) has an inner surface (402) for contact with the roller (308), said roller (308) being in contact (500) with the inner contact surface (402) when the first element (303) is rotated in a first rotational direction (404), said inner contact surface (402) defining a curve of the type developing from a circle.

Abstract: The invention relates to a device for converting a rotational movement into a translational movement, said device comprising: a first element (303) that is rotated around a stationary center of rotation (401) by a rotation means (301); a second element (307) that is translated along a translation axis (311) by rotating the first element (303); a cam (305) that is rigidly connected to the first element (303), said cam (305) having a cam channel (306) in which a roller (308) moves, wherein said roller is rigidly connected to the second element (307). Said device is characterized in that the cam channel (306) has an inner surface (402) for contact with the roller (308), said roller (308) being in contact (500) with the inner contact surface (402) when the first element (303) is rotated in a first rotational direction (404), said inner contact surface (402) defining a curve of the type developing from a circle.

Abstract: The invention relates to a device for transforming a rotation of a gear (5) into a translation of a slide (2, 8), the device including a supporting member (9) provided with a fixed tubular wall (10) translatably connected to the slide (2, 8) by a cam channel (11), the gear (5) being rotatably mounted on the supporting member (9) and rotatably connected to the slide (2, 8) which is suitable for pivoting about an axis. The gear (5) comprises a ring (15) rotatably mounted on the tubular wall (10) of the supporting member (9).

Abstract: 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).