Abstract: A spring retainer for a camshaft phaser is provided that includes an axially extending portion and a disk portion. The disk portion has an axially extending retention tab that is formed integrally therewith. The axially extending portion includes a torsional fixing region configured to torsionally attach a bias spring to the spring retainer. In a first installed position, the retention tab is spaced apart from a straight side of the bias spring. In a second rotationally slipped position, the retention tab is configured to be engaged with the straight side of the bias spring. The spring retainer can be utilized as a timing wheel that is configured to cooperate with a camshaft position sensor to provide an angular position of a camshaft.

Abstract: A spring retainer for a camshaft phaser is provided that includes an axially extending portion and a disk portion. The disk portion has an axially extending retention tab that is formed integrally therewith. The axially extending portion includes a torsional fixing region configured to torsionally attach a bias spring to the spring retainer. In a first installed position, the retention tab is spaced apart from a straight side of the bias spring. In a second rotationally slipped position, the retention tab is configured to be engaged with the straight side of the bias spring. The spring retainer can be utilized as a timing wheel that is configured to cooperate with a camshaft position sensor to provide an angular position of a camshaft.

Abstract: This disclosure relates to a trigger wheel for a camshaft adjuster, having a side wall extending along a central longitudinal axis, wherein a formed feature made to project in a radial direction of the longitudinal axis is formed in a circumferential region of the side wall. The formed feature is provided at least in part with a wave profile. Moreover, the disclosure relates to a camshaft adjuster having this trigger wheel.

Abstract: A hydraulic camshaft phaser including: a stator including a surface facing radially outwardly, and defining a recess; a rotor arranged to be non-rotatably connected to a camshaft and rotatable with respect to the stator; a spiral spring disposed in the recess and including a first end non-rotatably connected to the rotor and a second end non-rotatably connected to the stator; and a resilient cover plate directly connected to the surface facing radially outwardly, enclosing the spiral spring in the recess, and circumferentially preloaded. A hydraulic camshaft phaser including: a stator: arranged to receive rotational torque and defining a recess and a groove; a rotor rotatable with respect to the stator; a spiral spring disposed in the recess; and a resilient cover plate including a portion disposed in the groove, enclosing the spiral spring in the recess, and compressively engaging the stator in a radially inward direction.

Abstract: A camshaft phaser includes a stator, a rotor rotatable with respect to the stator, and a connector configured for being nonrotatably fixed to the rotor. The connector is configured for being nonrotatably connected to an outer circumferential surface of a camshaft. A method of constructing a camshaft phaser for an internal combustion engine includes providing a stator and a rotor rotatable with respect to the stator; and providing a connector configured for nonrotatably fixing to the rotor, the connector being configured for being nonrotatably connected to an outer circumferential surface of a camshaft.

Abstract: A camshaft phaser includes a stator, a rotor rotatable with respect to the stator, and a connector configured for being nonrotatably fixed to the rotor. The connector is configured for being nonrotatably connected to an outer circumferential surface of a camshaft. A method of constructing a camshaft phaser for an internal combustion engine includes providing a stator and a rotor rotatable with respect to the stator; and providing a connector configured for nonrotatably fixing to the rotor, the connector being configured for being nonrotatably connected to an outer circumferential surface of a camshaft.

Abstract: A camshaft phaser includes for an internal combustion engine includes a stator, a rotor rotatable with respect to the stator, a locking cover non-rotatably fixed to the stator and a locking assembly including a locking part configured for engaging with the locking cover to selectively lock the rotor with respect to the stator. The locking part is configured for being movable via hydraulic fluid in a hole in the rotor. The locking part or a surface of the hole including a groove configured for receiving contaminant particles in the hydraulic fluid.

Abstract: A camshaft phaser, including: a first surface facing in a first axial direction; and a connection portion extending from the first surface in the first axial direction. The connection portion includes a wall with a second surface facing in a second axial direction, a first circumferentially disposed wall connected to the wall, a second circumferentially disposed wall connected to the wall, a first tab directly connected to the first circumferentially disposed wall and the second circumferentially disposed wall and extending radially outwardly past the first circumferentially disposed wall and the second circumferentially disposed wall, and a plurality of connected groove walls extending from the second surface into the wall in the first axial direction and bounding a reinforcing groove in the wall. At least a portion of the plurality of connected groove walls is located between the first circumferentially disposed wall and the second circumferentially disposed wall.

Abstract: This disclosure relates to a trigger wheel for a camshaft adjuster, having a side wall extending along a central longitudinal axis, wherein a formed feature made to project in a radial direction of the longitudinal axis is formed in a circumferential region of the side wall. The formed feature is provided at least in part with a wave profile. Moreover, the disclosure relates to a camshaft adjuster having this trigger wheel.

Abstract: A camshaft phaser, including an axis of rotation; a target wheel including a first tab and a first timing feature; a stator arranged to receive rotational torque and including a plurality of radially inwardly extending protrusions; a rotor; and a spring. The rotor includes: a second timing feature; and, a plurality of radially outwardly extending protrusions circumferentially interleaved with the plurality of radially inwardly extending protrusions. The spring urges: the target wheel in a first circumferential direction with respect to the rotor; and the first timing feature into contact with the second timing feature. The first tab axially positions the target wheel within the camshaft phaser. The target wheel is arranged to interface with a position sensor to identify a rotational position of the rotor.

Abstract: A cam phaser is disclosed including a stator, a rotor positioned in the stator and including a locking pin, and a locking cover including a receiving element for receiving the locking pin. A cover plate is arranged on an opposite side of the stator from the locking cover. A check valve plate is positioned between the stator and one of the locking cover or the cover plate and including a plurality of valve elements. A plurality of fastener openings are defined in each of the stator, the locking cover, and the check valve plate. Fasteners extend through the fastener openings. In one embodiment, a radial clearance is defined between the fastener openings in the check valve plate and the fasteners. In one embodiment, at least one axially extending boss is formed around at least one fastener opening of the fastener openings formed in the check valve plate.

Abstract: A cam phaser has a stator, a rotor positioned in the stator and including a locking pin, a locking cover including a receiving feature for receiving the locking pin, a cover plate, and a check valve plate positioned between the stator and the locking cover and including a plurality of valve elements. The cam phaser also has a plurality of first openings in each of the stator, locking cover, and check valve plate, a plurality of second openings in the locking cover, and a third opening formed in the check valve plate. The cam phaser further includes a retention feature for aligning components of the cam phaser during assembly, the retention feature including one or more tabs on a first component and one or more indentations on a second component receiving the one or more tabs.

Abstract: A cam phaser has a stator, a rotor positioned in the stator and including a locking pin, a locking cover including a receiving feature for receiving the locking pin, a cover plate, and a check valve plate positioned between the stator and the locking cover and including a plurality of valve elements. The cam phaser also has a plurality of first openings in each of the stator, locking cover, and check valve plate, a plurality of second openings in the locking cover, and a third opening formed in the check valve plate. The cam phaser further includes a retention feature for aligning components of the cam phaser during assembly, the retention feature including one or more tabs on a first component and one or more indentations on a second component receiving the one or more tabs.

Abstract: A cam phaser includes a stator, a rotor positioned in the stator, a cover plate positioned on a first side of the stator, a locking cover positioned on a second side of the stator, a locking pin assembly configured to selectively lock the rotor in a position relative to the stator, a plurality of aligned first openings which extend through the stator, the cover plate, and the locking cover, a plurality of fasteners respectively inserted in the plurality of aligned first openings, and a plurality of aligned central openings forming a throughbore. The locking cover has a body made from sheet metal having a first axial side, a second axial side, a plurality of the first openings extending from the first axial side to the second axial aide, and a second opening extending from the first axial side to the second axial side. The body has a web portion and a plurality of reinforcing portions which are thicker than the web portion.

Abstract: A cam phaser has a stator, a rotor positioned in the stator and including a locking pin, a locking cover including a receiving feature for receiving the locking pin, a cover plate, and a check valve plate positioned between the stator and the locking cover and including a plurality of valve elements. The cam phaser also has a plurality of first openings in each of the stator, locking cover, and check valve plate, a plurality of second openings in the locking cover, and a third opening formed in the check valve plate. The cam phaser further includes a retention feature for aligning components of the cam phaser during assembly, the retention feature including one or more tabs on a first component and one or more indentations on a second component receiving the one or more tabs.

Abstract: A camshaft phaser including a locking clearance setting pin is provided. The camshaft phaser includes a stator including a first plurality of pin holes extending axially in at least one of the radially inwardly extending lobes arranged along an arcuate path. A locking cover engages against a first axial end face of the stator and includes a locking pin bore and a second plurality of pin holes arranged along the arcuate path and angularly spaced apart from one another by a different angular spacing than the first plurality of pin holes. A pin extends through a respective one of the first plurality of pin holes and a corresponding one of the second plurality of pin holes, such that a location of the pin sets an angular adjustment of the locking pin bore relative to the stator.

Abstract: A camshaft phaser, including: an axis of rotation; a stator including a radially outermost surface with a plurality of teeth; a locking plate including a first side facing in a first axial direction, a bore in the first side, and a through-bore; a check valve plate axially located between the locking plate and the stator and including a through-bore and a displaceable valve flap aligned, in the first axial direction, with the through-bore for the locking plate; and a bushing disposed in the bore in the first side and in the through-bore for the check valve plate. The bushing extends past the locking plate in the first axial direction.

Abstract: A cam phaser has a stator, a rotor positioned in the stator and including a locking pin, a locking cover including a receiving feature for receiving the locking pin, a cover plate, and a check valve plate positioned between the stator and the locking cover and including a plurality of valve elements. The cam phaser also has a plurality of first openings in each of the stator, locking cover, and check valve plate, a plurality of second openings in the locking cover, and a third opening formed in the check valve plate. The cam phaser further includes a retention feature for aligning components of the cam phaser during assembly, the retention feature including one or more tabs on a first component and one or more indentations on a second component receiving the one or more tabs.

Abstract: A cam phaser includes a stator, a rotor positioned in the stator, a cover plate positioned on a first side of the stator, a locking cover positioned on a second side of the stator, a locking pin assembly configured to selectively lock the rotor in a position relative to the stator, a plurality of aligned first openings which extend through the stator, the cover plate, and the locking cover, a plurality of fasteners respectively inserted in the plurality of aligned first openings, and a plurality of aligned central openings forming a throughbore. The locking cover has a body made from sheet metal having a first axial side, a second axial side, a plurality of the first openings extending from the first axial side to the second axial aide, and a second opening extending from the first axial side to the second axial side. The body has a web portion and a plurality of reinforcing portions which are thicker than the web portion.

Abstract: A camshaft phaser including a locking clearance setting pin is provided. The camshaft phaser includes a stator including a first plurality of pin holes extending axially in at least one of the radially inwardly extending lobes arranged along an arcuate path. A locking cover engages against a first axial end face of the stator and includes a locking pin bore and a second plurality of pin holes arranged along the arcuate path and angularly spaced apart from one another by a different angular spacing than the first plurality of pin holes. A pin extends through a respective one of the first plurality of pin holes and a corresponding one of the second plurality of pin holes, such that a location of the pin sets an angular adjustment of the locking pin bore relative to the stator.