Abstract: A cam phasing system is provided. In some non-limiting examples, the cam phasing system includes a planetary actuator having a first sun gear, a first set of planet gears meshed to and arranged circumferentially around the first sun gear, a first ring gear meshed with the first set of planet gears, and a second sun gear. The second sun gear is rotationally fixed. The planetary actuator further includes a second set of planet gears meshed to and arranged circumferentially around the second sun gear, a second ring gear meshed with the second set of planet gears, and an input shaft rotationally coupled to the first sun gear for rotation therewith. Rotation of the input shaft rotates the first ring gear relative to the second ring gear.

Abstract: A linear actuator is provided. The linear actuator includes a rotor assembly including a rotor and a lead screw. The lead screw is rotationally coupled to the rotor for rotation therewith. The linear actuator further includes a stator assembly configured to selectively rotate the rotor in a desired direction, and a body assembly having a shaft and a shaft tube. The shaft is keyed to the shaft tube and prevented from rotating with the rotor. The shaft includes an inner bore configured to threadably receive the lead screw therein. Selective rotation is configured to displace the shaft between an extended position and a retracted position.

Abstract: A cam phasing system is provided. In some non-limiting examples, the cam phasing system includes a planetary actuator having a first sun gear, a first set of planet gears meshed to and arranged circumferentially around the first sun gear, a first ring gear meshed with the first set of planet gears, and a second sun gear. The second sun gear is rotationally fixed. The planetary actuator further includes a second set of planet gears meshed to and arranged circumferentially around the second sun gear, a second ring gear meshed with the second set of planet gears, and an input shaft rotationally coupled to the first sun gear for rotation therewith. Rotation of the input shaft rotates the first ring gear relative to the second ring gear.

Abstract: A linear actuator is provided. The linear actuator includes a rotor assembly including a rotor and a lead screw. The lead screw is rotationally coupled to the rotor for rotation therewith. The linear actuator further includes a stator assembly configured to selectively rotate the rotor in a desired direction, and a body assembly having a shaft and a shaft tube. The shaft is keyed to the shaft tube and prevented from rotating with the rotor. The shaft includes an inner bore configured to threadably receive the lead screw therein. Selective rotation is configured to displace the shaft between an extended position and a retracted position.