A vane type cam phaser for an internal combustion engine, the vane type cam phaser including a stator and a rotor that is rotatable relative to the stator to adjust a phase angle of a camshaft; a spring element configured to align the rotor with the stator in an idle position; a spring adapter that is arranged between the spring element and the rotor; and an axial fixing device that fixes the spring adapter at the rotor.

The present disclosure provides a locking structure of a valve timing adjustment apparatus for an internal combustion engine, using torque from a camshaft and the pressure of working fluid. The locking structure includes an anti-rotation mechanism for inhibiting or preventing a position change between a rotor and a housing by preventing relative rotation of the rotor to the housing. The anti-rotation mechanism further includes: a plurality of locking grooves which are formed on the ratchet plate with different depths and connected to each other; and a locking pin member. In particular, the locking pin member has: a hollow outer pin elastically disposed in a fitting hole formed in vanes, an inner pin elastically disposed inside the outer pin, and a lifter ring coupled to the upper portion of the outer pin to slide on the inner side of the fitting hole.

The present disclosure relates to a sliding cam system for an internal combustion engine. The sliding cam system has a camshaft and a plurality of cam carriers with in each case at least two cams, the plurality of cam carriers being arranged fixedly on the camshaft so as to rotate with it and in an axially displaceable manner. The sliding cam system has a plurality of fluid-actuated actuator apparatuses which are configured in each case for axially displacing a cam carrier of the plurality of cam carriers. The sliding cam system has a fluid feed apparatus which is provided for feeding a fluid in a fluidic connection upstream of the plurality of actuator apparatuses for actuating the plurality of actuator apparatuses. At least two actuator apparatuses of the plurality of actuator apparatuses are coupled fluidically for simultaneous actuation.

A rotor is provided for a camshaft phaser. The rotor includes a plurality of vanes, a locking pin aperture, a vent passage connected to an end of the locking pin aperture, and an axial face configured to connect with a camshaft. The axial face defines a timing protrusion that is aligned with the vent passage or the locking pin aperture, and configured to be received by the camshaft.

The present disclosure provides a valve timing adjustment apparatus for an internal combustion engine. The apparatus includes an anti-rotation mechanism for inhibiting a position change between a rotor and a housing by inhibiting or preventing relative rotation of the rotor to the housing. The anti-rotation mechanism includes: a plurality of locking grooves formed on the ratchet plate with different depths and connected to each other; and a locking pin member having an outer pin elastically disposed in a fitting hole formed in one of the vanes, and an inner pin elastically disposed inside the outer pin. In particular, the inner pin locks the rotor to the housing when the outer pin and the inner pin are sequentially fitted in the locking grooves by torque from the camshaft.

A sleeve for a cam phaser, wherein the sleeve is arranged between a central valve and a rotor of the cam phaser, wherein the rotor is rotatable relative to a stator of the cam phaser about a rotation axis of the rotor, wherein a vane of the rotor is arranged positionable between two bars of the stator, wherein the vane divides an intermediary space that is formed between the two bars into a first pressure chamber and a second pressure chamber, wherein the rotor is movable by pressures that are provided in the first pressure chamber and in the second pressure chamber, wherein the central valve is configured to provide pressure loading and pressure relief of the first pressure chamber and the second pressure chamber.

A camshaft phaser for a concentric camshaft assembly includes a stator defining a cavity and configured to receive power from an engine crankshaft. A rotor is supported within the cavity and is rotatable relative to the stator. A drive adapter has a shank and a head. The shank is extendable through the rotor and is configured to engage with an inner camshaft. The head has an end face defining a first key feature and a continuous groove. A drive plate is fixed to the stator and includes a radial wall defining a second key feature engageable with the first key feature to rotationally fix the drive adapter to the drive plate. An annular gasket is received in the groove and is sealable with the wall.

A camshaft phaser or camshaft adjuster for an internal combustion engine is disclosed. The camshaft adjuster includes a rotor, and a stator disposed about the rotor in a slideable engagement such that the stator and the rotor are rotatable relative to each other. A trigger wheel is configured to interact with an associated sensor for detection of an angular speed or position of the trigger wheel. A drive plate is configured to be non-rotatably fixed with an inner camshaft and rotatably coupled to the trigger wheel. In various embodiments, the trigger wheel has an axial face that defines an opening, and the drive plate has a tab with an axially-extending portion extending through the opening in the trigger wheel.

An electric-hydraulic camshaft phaser assembly, including a hydraulic camshaft phaser and an electric camshaft phaser. The hydraulic camshaft phaser includes: a stator arranged to receive rotational torque and including a plurality of radially inwardly extending protrusions; a rotor arranged to be non-rotatably connected to a first camshaft and including a plurality of radially outwardly extending protrusions circumferentially interleaved with the plurality of radially inwardly extending protrusions; and a plurality of chambers bounded at least in part by the plurality of radially inwardly extending protrusions and the plurality of radially outwardly extending protrusions. The electric camshaft phaser includes: an input non-rotatably connected to the stator; an output gear; and at least one protrusion fixed to the output gear and arranged to be inserted into at least one slot of a second camshaft. The at least one protrusion is arranged to transmit rotational torque from the output gear to the second camshaft.

A valve timing controller includes: a driving side rotation member synchronously rotating with a crankshaft of an internal combustion engine; a driven side rotation member disposed coaxially with a rotary shaft center of the driving side rotation member and rotating integrally with a valve opening/closing cam shaft; advancing and retarding chambers formed between the driving side and driven side rotation members; a valve unit disposed coaxially with the rotary shaft center and controlling feeding and discharging of a fluid to and from the advancing and retarding chambers; and a tubular valve case having an internal space extending in a direction along the rotary shaft center, accommodating the valve unit in the internal space, having an opening at one end in the direction along the rotary shaft center, and having a bottom portion at the other end.