Abstract: A variable camshaft timing (VCT) system includes an independent camshaft phaser, receiving input from a crankshaft of an internal combustion engine, having an output coupled to one of an inner concentric camshaft or an outer concentric camshaft; and a dependent camshaft phaser, coupled to the other of the inner concentric camshaft or the outer concentric camshaft, comprising a half-Oldham link configured to permit radial movement of the inner concentric camshaft relative to the outer concentric camshaft in one radial direction and at least one pivotable arm configured to permit radial movement of the inner concentric camshaft relative to the outer concentric camshaft in another, different radial direction.

Abstract: A variable camshaft timing (VCT) system includes an independent camshaft phaser, receiving input from a crankshaft of an internal combustion engine, having an output coupled to one of an inner concentric camshaft or an outer concentric camshaft; and a dependent camshaft phaser, coupled to the other of the inner concentric camshaft or the outer concentric camshaft, comprising a half-Oldham link configured to permit radial movement of the inner concentric camshaft relative to the outer concentric camshaft in one radial direction and at least one pivotable arm configured to permit radial movement of the inner concentric camshaft relative to the outer concentric camshaft in another, different radial direction.

Abstract: An electrically-actuated variable camshaft timing (VCT) assembly includes a gearbox assembly including an input; an electric motor having a rotor, a stator, and a motor shaft that is coupled with the input of the gearbox assembly, wherein the motor shaft includes etchings, on an outer surface of the motor shaft, that releasably couple the motor shaft to the rotor at a center aperture of the rotor when an amount of torque exerted on the motor shaft via the gearbox assembly is less than or equal to a predetermined torque value, and the etchings are further configured to decouple the motor shaft from the rotor when the amount of torque exerted on the motor shaft is greater than the predetermined torque value.

Abstract: An electrically-actuated camshaft phaser used in an internal combustion engine including a camshaft sprocket, configured to receive rotational input from a crankshaft, that includes a sprocket ring gear having a plurality of radially-inwardly facing gear teeth and a radially extending sprocket side; a camshaft plate that includes a camshaft ring gear having a plurality of radially-inwardly facing gear teeth and a radially extending camshaft side; a plurality of planetary gears having radially-outwardly facing gear teeth, each gear with a first radial gear face and a second radial gear face, wherein the planetary gears engage the sprocket ring gear, the camshaft ring gear, or both the sprocket ring gear and the camshaft ring gear; and one or more fluid escapement channels formed in at least one of the camshaft sprocket, the camshaft plate, the first radial gear face, or the second radial gear face.

Abstract: A torque-limiting coupler for connecting an electric motor to a rotatable input of a vehicle is provided, including: a rigid frame that is configured to be coupled to one of the rotatable input or an output shaft of the electric motor; and an elastic member, configured to engage the other of the rotatable input or the output shaft of the electric motor, that engages the rigid frame such that the elastic member substantially maintains its shape and inhibits angular displacement between the rotatable input and the output shaft when an amount of torque received from the output shaft is below a predetermined torque limit, the elastic member changes shape permitting angular displacement between the rotatable input and the output shaft when an amount of torque received from the output shaft exceeds the predetermined torque limit.

Abstract: An electrically-actuated camshaft phaser used in an internal combustion engine including a camshaft sprocket, configured to receive rotational input from a crankshaft, that includes a sprocket ring gear having a plurality of radially-inwardly facing gear teeth and a radially extending sprocket side; a camshaft plate that includes a camshaft ring gear having a plurality of radially-inwardly facing gear teeth and a radially extending camshaft side; a plurality of planetary gears having radially-outwardly facing gear teeth, each gear with a first radial gear face and a second radial gear face, wherein the planetary gears engage the sprocket ring gear, the camshaft ring gear, or both the sprocket ring gear and the camshaft ring gear; and one or more fluid escapement channels formed in at least one of the camshaft sprocket, the camshaft plate, the first radial gear face, or the second radial gear face.

Abstract: A variable camshaft timing (VCT) assembly for changing the angular position of concentric camshafts relative to a crankshaft includes a coupling plate having a first plurality of Oldham features configured to engage a first plurality of Oldham receiving features carried by a first VCT device and a second plurality of Oldham features configured to engage a second plurality of Oldham receiving features carried by a second VCT device; the coupling plate is positioned axially between the first VCT device and the second VCT device permitting the first VCT device and the second VCT device to move radially outwardly and inwardly relative to an axis of camshaft rotation.

Abstract: A two piece vane seal for a variable cam timing phaser for an internal combustion engine that reduces leakage. The two piece vane seal having a first portion including a first end, a second end, and a flange extending axially from the first end. Also having a second portion including a first end, a second end, and a flange extending axially from the first end. The first portion is assembled relative to and connected to the second portion. Also having a spring having a first end and a second end and a length, extending over the curved ledge of the longitudinally extending wall of the first portion and the second portion.

Abstract: A tensioner with a bracket, a tensioner body coupled to the bracket for rotation about a first axis, a first and second wheels that are coupled to the tensioner body for rotation about second and third axes, respectively, that are parallel the first axis, and a spring that biases the second wheel along a line of action relative to the tensioner body. The second wheel is coupled to the tensioner body for movement between first and second positions along the line of action.

Abstract: A variable camshaft timing (VCT) assembly for changing the angular position of concentric camshafts relative to a crankshaft includes a coupling plate having a first plurality of Oldham features configured to engage a first plurality of Oldham receiving features carried by a first VCT device and a second plurality of Oldham features configured to engage a second plurality of Oldham receiving features carried by a second VCT device; the coupling plate is positioned axially between the first VCT device and the second VCT device permitting the first VCT device and the second VCT device to move radially outwardly and inwardly relative to an axis of camshaft rotation.

Abstract: An electrically-controlled eccentric camshaft phaser (10) that adjusts phase between a camshaft and a crankshaft includes a sprocket (12), configured to connect to the crankshaft and rotate about a center axis (x), having a sprocket ring gear (14); a camshaft plate (20) configured to connect to the camshaft and rotate about the center axis (x), having a camshaft ring gear (22); an eccentric shaft (28) that includes a crankshaft eccentric section (52) and a camshaft eccentric section (54); a sprocket bearing (16) that is received by the crankshaft eccentric section (52); a camshaft bearing (64), having a different diameter than the sprocket bearing (16), that is received by the camshaft eccentric section (54).

Abstract: A variable camshaft timing device adjusts phase between a camshaft and a crankshaft and includes a first ring gear configured to connect to the camshaft and rotate about a center axis, having a plurality of radially-inwardly facing gear teeth; a second ring gear axially spaced from the first ring gear, configured to receive rotational input from the crankshaft and rotate about the center axis, having a plurality of radially-inwardly facing gear teeth; a planetary gear assembly including one or more planet gears that are configured for rotation by an electric motor and engage the first ring gear and the second ring gear through the planet gear(s); and a cushioned stop configured to transmit energy between the planetary gear assembly and a planetary gear stop attached to a sprocket or a camshaft plate.

Abstract: An electrically-controlled eccentric camshaft phaser (10) that adjusts phase between a camshaft and a crankshaft includes a sprocket (12), configured to connect to the crankshaft and rotate about a center axis (x), having a sprocket ring gear (14); a camshaft plate (20) configured to connect to the camshaft and rotate about the center axis (x), having a camshaft ring gear (22); an eccentric shaft (28) that includes a crankshaft eccentric section (52) and a camshaft eccentric section (54); a sprocket bearing (16) that is received by the crankshaft eccentric section (52); a camshaft bearing (64), having a different diameter than the sprocket bearing (16), that is received by the camshaft eccentric section (54).

Abstract: A variable camshaft timing device adjusts phase between a camshaft and a crankshaft and includes a first ring gear configured to connect to the camshaft and rotate about a center axis, having a plurality of radially-inwardly facing gear teeth; a second ring gear axially spaced from the first ring gear, configured to receive rotational input from the crankshaft and rotate about the center axis, having a plurality of radially-inwardly facing gear teeth; a planetary gear assembly including one or more planet gears that are configured for rotation by an electric motor and engage the first ring gear and the second ring gear through the planet gear(s); and a cushioned stop configured to transmit energy between the planetary gear assembly and a planetary gear stop attached to a sprocket or a camshaft plate.