Abstract: A camshaft phaser, including: a rotatable stator; a rotatable rotor arranged to be non-rotatably connected to a camshaft; first and second wedge plates radially disposed between the rotor and the stator; and a displacement assembly arranged to, for an advance mode, displace the first wedge plate in a first circumferential direction to enable rotation of the rotor, with respect to the stator, in the first circumferential direction, and for a retard mode, displace the second wedge plate in a second circumferential direction, opposite the first circumferential direction, to enable rotation of the rotor, with respect to the stator, in the second circumferential direction.

Abstract: A wedge friction clutch with onboard enable and disable function, including: an axis of rotation; an inner race; an outer race located radially outward of the inner race; and a wedge assembly including at least one wedge plate located between the inner and outer races in a radial direction; at least one resilient element; and at least one piston. For a locked mode in which the inner and outer races are non-rotatably connected, the at least one resilient element is arranged to displace the at least one wedge plate in at least one first circumferential direction. For a free wheel mode in which the inner and outer races are independently rotatable with respect to each other, the at least one piston is arranged to displace the at least one wedge plate in at least one second circumferential direction.

Abstract: A camshaft phaser, including: a stator; a rotor including a first channel and a second channel and connectable to a camshaft a first wedge plate and a second wedge plate; and a displacement assembly including a first pin in the first channel and a second pin in the second channel. For an advance mode: fluid displaces the first pin to displace the first wedge plate to enable rotation of the rotor, with respect to the stator, in a first direction; and the second wedge plate blocks rotation of the rotor, with respect to the stator, in a second direction. For a retard mode: fluid displaces the second pin to displace the second wedge plate to enable rotation of the rotor, with respect to the stator, in a second direction; and the first wedge plate blocks rotation of the rotor, with respect to the stator, in the first direction.

Abstract: A wedge friction clutch with onboard enable and disable function, including: an axis of rotation; an inner race; an outer race; a wedge plate located between the inner and outer races in a radial direction; a first resilient element; and a piston. For a locked mode, the first resilient element is arranged to displace the wedge plate in a first circumferential direction to non-rotatably connect the inner and outer races. For a free wheel mode the piston is arranged to displace in a first radial direction to displace the wedge plate in a second circumferential direction, opposite the first circumferential direction such that the inner and outer races are independently rotatable with respect to each other.

Abstract: A camshaft phaser comprising a stator arranged to receive torque from an engine, a rotor arranged to non-rotatably connect to a camshaft, first and second wedge plates radially disposed between the stator and the rotor and, a displacement assembly arranged to: for an advance mode, displace the first wedge plate to enable rotation of the rotor, with respect to the stator, in a first circumferential direction, while the second wedge plate blocks rotation of the rotor, with respect to the stator, in a second circumferential direction, opposite the first circumferential direction; and for a retard mode, displace the second wedge plate to enable rotation of the rotor, with respect to the stator, in the second circumferential direction, while the first wedge plate blocks rotation of the rotor, with respect to the stator, in the first circumferential direction.

Abstract: A wedge friction clutch with controllable clutch locking function, having an axis of rotation, an inner race, an outer race located radially outward of the inner race, and, a wedge assembly including a wedge plate located between the inner and outer races in a radial direction, a first piston arranged to displace the wedge plate in a first circumferential direction, a second piston arranged to displace the wedge plate in a second circumferential direction, opposite the first circumferential direction, and, a hydraulic circuit arranged to control the first and second pistons.

Abstract: A wedge friction clutch with controllable clutch locking function, having an axis of rotation, an inner race, an outer race located radially outward of the inner race, and, a wedge assembly including a wedge plate located between the inner and outer races in a radial direction, a first piston arranged to displace the wedge plate in a first circumferential direction, a second piston arranged to displace the wedge plate in a second circumferential direction, opposite the first circumferential direction, and, a hydraulic circuit arranged to control the first and second pistons.

Abstract: A wedge friction clutch with onboard enable and disable function, including: an axis of rotation; an inner race; an outer race; a wedge plate located between the inner and outer races in a radial direction; a first resilient element; and a piston. For a locked mode, the first resilient element is arranged to displace the wedge plate in a first circumferential direction to non-rotatably connect the inner and outer races. For a free wheel mode the piston is arranged to displace in a first radial direction to displace the wedge plate in a second circumferential direction, opposite the first circumferential direction such that the inner and outer races are independently rotatable with respect to each other.

Abstract: A camshaft phaser including a rotatable stator arranged to receive torque from an engine, a hub arranged to non-rotatably connect to a camshaft and including first and second pluralities of circumferentially disposed ramps, a first wedge plate including: a first aperture and a third plurality of circumferentially disposed ramps engaged with the first plurality of circumferentially disposed ramps, a second wedge plate including: a second aperture and a fourth plurality of circumferentially disposed ramps engaged with the second plurality of circumferentially disposed ramps, and an engagement assembly including a shaft extending axially through the first and second apertures. For an advance or retard mode, the shaft is arranged to be displaced axially so that the hub is rotatable with respect to the stator in a first or second circumferential direction.

Abstract: A wedge friction clutch with onboard enable and disable function, including: an axis of rotation; an inner race; an outer race located radially outward of the inner race; and a wedge assembly including at least one wedge plate located between the inner and outer races in a radial direction; at least one resilient element; and at least one piston. For a locked mode in which the inner and outer races are non-rotatably connected, the at least one resilient element is arranged to displace the at least one wedge plate in at least one first circumferential direction. For a free wheel mode in which the inner and outer races are independently rotatable with respect to each other, the at least one piston is arranged to displace the at least one wedge plate in at least one second circumferential direction.

Abstract: A chain or belt drive assembly, including: a first sprocket with: a first plurality of radially outwardly extending protrusions; and at least one opening passing through material forming the sprocket and wholly surrounded by the material forming the first sprocket; and a second sprocket including a second plurality of radially outwardly extending protrusions, The assembly includes a continuous chain or belt engaged with the first and second pluralities of protrusions; and at least one pendulum mass assembly including: a first pendulum mass disposed on a first radial side of the first sprocket; second pendulum mass disposed on a second radial side, opposite the first radial side, of the first sprocket; and at least one connection element fixedly secured to the first and second pendulum masses and passing through the at least one opening. The connection element is displaceable within the at least one opening in radial and circumferential directions.

Abstract: A two piece rolling element cage for a bearing assembly comprising a first and second cage, with axial projections extending from a cage body, oriented toward each other and inserted between rolling elements, on opposite axial ends of the rolling elements.

Abstract: A two piece rolling element cage for a bearing assembly comprising a first and second cage, with axial projections extending from a cage body, oriented toward each other and inserted between rolling elements, on opposite axial ends of the rolling elements.

Abstract: A chain or belt drive assembly, including: a first sprocket with: a first plurality of radially outwardly extending protrusions; and at least one opening passing through material forming the sprocket and wholly surrounded by the material forming the first sprocket; and a second sprocket including a second plurality of radially outwardly extending protrusions, The assembly includes a continuous chain or belt engaged with the first and second pluralities of protrusions; and at least one pendulum mass assembly including: a first pendulum mass disposed on a first radial side of the first sprocket; second pendulum mass disposed on a second radial side, opposite the first radial side, of the first sprocket; and at least one connection element fixedly secured to the first and second pendulum masses and passing through the at least one opening. The connection element is displaceable within the at least one opening in radial and circumferential directions.

Abstract: A mechanical tensioner for a traction drive element is provided. It includes a housing with a bore having an open end and a closed bottom. A plunger having a first end is located in the bore. The first end of the plunger has a tapered slot or tapered opening defined therein forming a hollow wall portion of the plunger. The hollow wall portion is discontinuous in a circumferential direction. A wedge insert is located at least partially in the slot or opening. The wedge insert has an outer surface with a contact area that is complementary to the tapered slot or tapered opening. A spring is located between the wedge insert and closed bottom of the housing. The spring forces the wedge insert into the tapered slot or tapered opening with an increase in force as the plunger is depressed into the bore in the housing. This forces the hollow wall portion outwardly in order to provide a friction damping feature that increases with the distance that the plunger is depressed.

Abstract: A traction mechanism drive (1), such as a control drive of an internal combustion engine, having an endless traction mechanism, such as a link chain, connecting a drive gear (2) and at least one driven gear (3) in a form-fitting manner, at least one clamping device (5) actuated by a pressure medium and a guiding rail (6) being arranged on the periphery of the traction mechanism. At least the guiding rail (6) includes a carrier body (7) and a resiliently flexible sliding body (8) connected to the carrier body (7) on the traction mechanism side. A spring element (18) is arranged in a free space (16) between the upper side (14) of the carrier body (7) and a lower side (15) of the sliding body (8). In order to improve the damping of the traction mechanism, the spring element (18) includes at least one flexible spring (19) connected integrally to the carrier body (7) and the sliding body (8).

Abstract: A chain tensioner is provided with a base housing, a first plunger, and a second plunger. The base housing surrounds a portion of at least one of the first or second plungers. A first spring is disposed between the first and second plungers, and a second spring is disposed between the first plunger and the base housing. The chain tensioner can tension two chain spans simultaneously with different stiffness parameters based on the two springs.

Abstract: A mechanical tensioner for a traction drive element is provided. It includes a housing with a bore having an open end and a closed bottom. A plunger having a first end is located in the bore. The first end of the plunger has a tapered slot or tapered opening defined therein forming a hollow wall portion of the plunger. The hollow wall portion is discontinuous in a circumferential direction. A wedge insert is located at least partially in the slot or opening. The wedge insert has an outer surface with a contact area that is complementary to the tapered slot or tapered opening. A spring is located between the wedge insert and closed bottom of the housing. The spring forces the wedge insert into the tapered slot or tapered opening with an increase in force as the plunger is depressed into the bore in the housing. This forces the hollow wall portion outwardly in order to provide a friction damping feature that increases with the distance that the plunger is depressed.

Abstract: A traction mechanism drive (1), such as a control drive of an internal combustion engine, having an endless traction mechanism, such as a link chain, connecting a drive gear (2) and at least one driven gear (3) in a form-fitting manner, at least one clamping device (5) actuated by a pressure medium and a guiding rail (6) being arranged on the periphery of the traction mechanism. At least the guiding rail (6) includes a carrier body (7) and a resiliently flexible sliding body (8) connected to the carrier body (7) on the traction mechanism side. A spring element (18) is arranged in a free space (16) between the upper side (14) of the carrier body (7) and a lower side (15) of the sliding body (8). In order to improve the damping of the traction mechanism, the spring element (18) includes at least one flexible spring (19) connected integrally to the carrier body (7) and the sliding body (8).

Abstract: A chain guiding element (1) for a timing chain (7) of a timing chain drive, with the guiding element having a rigid base body (3) is provided. A spring element (4) is arranged on the base body (3). The side of the spring element (4) facing the control chain has a guiding surface (6) for the timing chain (7), and a space is created between the base body (3) and the side of the spring element opposite the guiding surface (6).