A two-speed pulley assembly for an engine accessory drive includes a planetary gear, a pulley, a friction clutch, and a one-way clutch. The planetary gear has a ring gear, a sun gear, a planet carrier, and a planet gear. The planet gear is rotatable relative to the planet carrier and is drivingly engaged with the ring gear and the sun gear. The pulley circumscribes the ring gear and is in driving engagement with the ring gear. The friction clutch is arranged to selectively prevent rotation of the sun gear. The one-way clutch is arranged between the sun gear and the ring gear to permit rotation of the sun gear relative to the ring gear in a first rotational direction, and prevents rotation in a second rotational direction, opposite the first rotational direction.

A two-speed pulley assembly for an engine accessory drive includes a planetary gear, a pulley, a friction clutch, and a one-way clutch. The planetary gear has a ring gear, a sun gear, a planet carrier, and a planet gear. The planet gear is rotatable relative to the planet carrier and is drivingly engaged with the ring gear and the sun gear. The pulley circumscribes the ring gear and is in driving engagement with the ring gear. The friction clutch is arranged to selectively prevent rotation of the sun gear. The one-way clutch is arranged between the sun gear and the ring gear to permit rotation of the sun gear relative to the ring gear in a first rotational direction, and prevents rotation in a second rotational direction, opposite the first rotational direction.

A vehicle propulsion system includes an electric motor having a hollow rotor shaft, an input drive sprocket connected to the hollow rotor shaft, a first chain mounted on the input drive sprocket, a transfer driven sprocket mounted on a transfer shaft, the first chain is also mounted on the transfer driven sprocket, a transfer drive sprocket mounted on the transfer shaft, a second chain mounted on the transfer drive sprocket, a final drive driven sprocket connected to a differential, the second chain is also mounted on the final drive driven sprocket, a first axle connected to an output of the differential, and a second axle connected to another output of the differential.

A vehicle propulsion system includes an electric motor having a hollow rotor shaft, an input drive sprocket connected to the hollow rotor shaft, a first chain mounted on the input drive sprocket, a transfer driven sprocket mounted on a transfer shaft, the first chain is also mounted on the transfer driven sprocket, a transfer drive sprocket mounted on the transfer shaft, a second chain mounted on the transfer drive sprocket, a final drive driven sprocket connected to a differential, the second chain is also mounted on the final drive driven sprocket, a first axle connected to an output of the differential, and a second axle connected to another output of the differential.

In an aspect, a V tensioner is provided and includes a first arm and a second arm. A damping structure and a damping system biasing member are provided. The damping system biasing member is positioned axially in between the first and second arms.

In an aspect, a V tensioner is provided and includes a first arm and a second arm. A damping structure and a damping system biasing member are provided. The damping system biasing member is positioned axially in between the first and second arms.

A belt wave drive transmission system and method are shown involving a first rotor (10) having a first drum configured to rotate about its axis of rotation and a second rotor (20) having a second drum configured to rotate about its axis of rotation, where the first rotor (10) is constrained to orbit concentrically about the axis of rotation of the second drum. A belt (30) encircles the first and second drums to couple the first (10) and second (20) rotors such that the first rotor (10) moves concentrically around the second rotor (20) as the belt (30) advances about a circumference of the second drum. In further refinements, the system and method involve electrically controllably coupling at least one of the first and second rotors to the belt.

A belt wave drive transmission system and method are shown involving a first rotor (10) having a first drum configured to rotate about its axis of rotation and a second rotor (20) having a second drum configured to rotate about its axis of rotation, where the first rotor (10) is constrained to orbit concentrically about the axis of rotation of the second drum. A belt (30) encircles the first and second drums to couple the first (10) and second (20) rotors such that the first rotor (10) moves concentrically around the second rotor (20) as the belt (30) advances about a circumference of the second drum. In further refinements, the system and method involve electrically controllably coupling at least one of the first and second rotors to the belt.

A device for creating more natural three-dimensional image effects which may be recorded, for example, by video cameras. The device has an intermittent image pathway occluder for receiving at least two image pathways which alternately and intermittently occludes the two image pathways, a horizontal imaging-shifting component for shifting at least one of the image pathways leftward or rightward, a vertical imaging-shifting component for shifting the image pathways upward and downward, and an image pathway compositing component which forms a coincident superimposed composite three-dimensional image after the image pathways have been shifted by the horizontal and vertical imaging-shifting components, and after passing through the intermittent image pathway occluder. Also, a device for enhancing the more natural three-dimensional effect of such images which are created and which may be recorded and/or displayed.

A device for creating more natural three-dimensional image effects which may be recorded, for example, by video cameras. The device has an intermittent image pathway occluder for receiving at least two image pathways which alternately and intermittently occludes the two image pathways, a horizontal imaging-shifting component for shifting at least one of the image pathways leftward or rightward, a vertical imaging-shifting component for shifting the image pathways upward and downward, and an image pathway compositing component which forms a coincident superimposed composite three-dimensional image after the image pathways have been shifted by the horizontal and vertical imaging-shifting components, and after passing through the intermittent image pathway occluder. Also, a device for enhancing the more natural three-dimensional effect of such images which are created and which may be recorded and/or displayed.