Abstract: A method of operating a cam shaft phaser including a stator including a radially inwardly extending protrusion, a rotor including a radially outwardly extending protrusion and a slot in the radially outwardly extending protrusion, a cover non-rotatably connected to the stator, a chamber circumferentially bounded by the radially inwardly extending protrusion and the radially outwardly extending protrusion, a pin disposed in the slot, and a first channel connecting the chamber with the slot. The method comprises: blocking, with the locking pin, rotation of the rotor with respect to the stator; applying pulse width modulation voltage to a control valve as a non-rectangular wave form; flowing fluid from the control valve to the chamber; flowing the fluid through the first channel to the slot; axially displacing the locking pin with the fluid; disengaging the locking pin from the cover; and rotating the rotor with respect to the stator.

Abstract: Disclosed is a control device for a multi-cylinder engine having a combustion chamber (19) to which an intake port (16) and an exhaust port (17) are connected. The control device comprises: an intake-side variable valve operating mechanism (71) for controlling a lift timing of two intake valves (21a, 21b) of the intake port (16); an exhaust-side variable valve operating mechanism (72) for controlling a lift timing of an exhaust valve (22a); and an exhaust-side valve operating mechanism (73) for driving an exhaust valve (22b) at a fixed timing. The control device is operable, when executing cylinder deactivation in a low engine load and low engine speed operating range, to cause the exhaust-side variable valve operating mechanism (72) to open the exhaust valve (22a) during downward movement of a piston (14) in a cylinder (18) being subjected to the cylinder deactivation.

Abstract: According to one or more embodiments, an internal combustion engine may be operated by a method which includes one or more of injecting a first fuel and a second fuel into an engine cylinder to form a fuel mixture, and combusting the fuel mixture with a spark plug to translate a piston housed in the engine cylinder and rotate a crank shaft coupled to the piston. The first fuel may comprise a greater octane rating than the second fuel. A target CA50 may correspond to a minimum in specific fuel consumption of the fuel mixture. The spark plug may initiate combustion at a time such that the internal combustion engine operates with an operational CA50 that is within 20 degrees of the target CA50.

Abstract: A system for mounting a cam phaser at a cam shaft of an internal combustion engine, the system including the cam phaser including a stator and a rotor that is rotatable relative to the stator; a control valve configured to adjust a phase angle of the cam shaft, wherein the control valve is configured to control a position of the rotor of the cam phaser by letting fluid flow into the cam phaser or letting fluid flow out of the cam phaser; and an assembly tool that includes at least one support device that is insertable into at least one corresponding support opening of the rotor so that a force is transferable between the rotor and the assembly tool.

Abstract: A cam phaser including a rotation phaser and a hydraulic valve hydraulically loading the rotation phaser, wherein the hydraulic valve is connectable torque proof with a cam shaft so that the cam shaft is rotatable, wherein the rotation phaser includes a stator and a rotor configured coaxial with the stator, wherein the rotor is rotatable relative to the stator, wherein the hydraulic valve is configured so that it protrudes at least partially into the rotation phaser, wherein an adapter is provided for a relative axial positioning of the rotor and the stator. According to the invention the adapter is configured for loose mounting in the rotation phaser so that a fixated connection of the adapter in the rotation phaser is provided when the cam shaft is mounted at the hydraulic valve.

Abstract: A rotor for a cam phaser, the rotor rotating about a rotation axis and the rotor including a first face; a receiving face arranged opposite to the first face; a central portion; at least one lobe that is arranged at the central portion and which extends away from the central portion in a radial direction; and a cam shaft receiving recess provided at the receiving face and configured to receive a cam shaft, wherein the cam shaft receiving recess includes an inside surface, wherein at least two cam shaft centering elements are arranged at the inside surface for centering the cam shaft, and wherein the cam shaft centering elements are configured as protrusions. The invention also relates to a joining kit.

Abstract: Methods and devices are provided for locking and unlocking a phase control apparatus. In one example, a phase control apparatus is provided with a locking plate including a drive wheel, a pin recess, and a ramped channel opening into the pin recess and a housing coupled to the locking plate. The phase control apparatus also includes a vane rotor including a vane and positioned in a hydraulic chamber of the housing and a locking pin positioned within a bore of the vane and movable into a locked position where the locking pin engages with the pin recess.

Abstract: An electronic control unit of an internal combustion engine is configured to control the fuel injection valve and to control a spark plug if necessary such that fuel is combusted by pre-mixture compression ignition combustion or flame propagation combustion. The electronic control unit is configured to perform homogeneous combustion in a flame ignition operation range when switching failure has not occurred, the homogeneous combustion being combustion in which fuel homogeneously diffused into the combustion chamber is ignited using the spark plug and is combusted by flame propagation combustion. The electronic control unit is configured to perform spray-guided stratified combustion in a second operation range when the switching failure has occurred, the spray-guided stratified combustion being combustion in which fuel in the fuel injection path is ignited using the spark plug and is combusted by the flame propagation combustion.

Abstract: A control unit for an internal combustion engine is configured for allowing smooth operation of the internal combustion engine by increasing an intake amount while maintaining an opening timing of an intake valve constant, at the time of low-rotation, high-load state. A valve opening/closing timing control apparatus includes a phase adjustment mechanism configured to vary a relative rotational phase between a driving side rotary body rotatable in synchronism with a crankshaft of the internal combustion engine and a driven side rotary body rotatable together with an intake cam shaft. After an opening timing of the intake valve, the relative rotational phase is displaced in the advancing direction.

Abstract: In one embodiment, a method is provided. The method includes receiving a signal representative of an engine vibration transmitted via a knock sensor, wherein the knock sensor is disposed in an engine. The method additionally includes deriving a valve wear measurement during operation of the engine based on the signal. The method further includes communicating the valve wear measure.

Abstract: A camshaft phaser arrangement configured for a concentric camshaft assembly having inner and outer camshafts is provided. The camshaft phaser arrangement includes a first camshaft phaser, a second camshaft phaser, a coupling, and at least one timing wheel connected to at least one of the first or second camshaft phaser. Each of the camshaft phasers is configured to be connected to either the inner or the outer camshaft. The coupling includes a coupling ring and at least one coupling pin that torsionally connects the first camshaft phaser to the second camshaft phaser. The coupling provides for radial and axial movement between the first camshaft phaser and the second camshaft phaser.

Abstract: A camshaft arrangement comprising a camshaft, a vane-type camshaft phaser attached to a first end of the camshaft, a valve actuating arrangement and an oil control valve. The oil control valve comprises an elongated valve member arranged centrally inside the camshaft. The elongated valve member can be adjusted in a longitudinal direction of the camshaft to control the oil flow to the vane-type camshaft phaser by actuation of an actuator. The valve actuating arrangement comprises a first valve actuating configuration attached to the camshaft and a second valve actuating configuration comprising an actuation arm connected to the actuator. The first valve actuating configuration is arranged to be actuated by the actuation arm of the second valve actuating configuration.

Abstract: A continuous variable valve duration apparatus may include a camshaft, a plurality of wheels mounted to the camshaft, of which a wheel key is formed thereto respectively, a plurality of cam portions of which a cam and a cam key are formed thereto respectively, of which the camshaft is inserted thereto, of which relative phase angle with respect to the camshaft is variable, a plurality of inner brackets connected with the each wheel key and the each cam key, a plurality of a slider housings of which the each inner bracket is rotatably inserted thereto respectively, and rotatably configured around a hinge hole formed a side of a cam cap and a control portion selectively moving the slider housings to change relative position of a rotation center of the inner brackets.

Abstract: A switching roller finger follower, including: first and second body portions; a resilient element connected to the body portions; and a locking assembly. The first body portion includes: a first bore; a second bore including a first orifice arranged to receive a pressurized fluid; and a second orifice arranged to expel the fluid. The locking assembly includes: a locking pin disposed in the first bore; and a shuttle pin engaged with the locking pin. The shuttle pin is displaceable transverse to the locking pin to: displace the locking pin in a first axial direction to contact the second body portion with the locking pin; and displace the locking pin in a second axial direction to disengage the locking pin from the second body portion. The second bore includes the second orifice; or the second bore does not include the second orifice and is in fluid communication with the second orifice.

Abstract: A valve operating system that includes a plurality of cam assemblies that are coupled for rotation about a rotary axis. Each of the cam assemblies has a control link and a first cam member. Each of the control links has a link body, which forms a majority of the control link, and that extends parallel to the rotary axis. Each of the first cam members is coupled to one of the control links for axial movement therewith along the rotary axis between first and second positions to alternate between first and second cam profiles, respectively.

Abstract: A valve opening/closing timing control device includes: a driving side rotator synchronously rotating with a crankshaft of an internal combustion engine; a driven side rotator coaxially disposed with a rotation axis of the driving side rotator and integrally rotating with a valve opening/closing camshaft; advance and retard chambers formed between the driving side and driven side rotators; a lock mechanism including a lock member capable of engaging with a recessed portion formed on one of the driving side and driven side rotators, and provided in the other of the driving side and driven side rotators; and a connecting bolt coaxially disposed with the rotation axis and connecting the driven side rotator to the camshaft, in which the connecting bolt includes an internal space, a valve unit accommodates a spool, and the spool includes an internal flow path, and, in the spool, a lock holding check valve is disposed.

Abstract: A sensor device for monitoring a component, the sensor device providing a zinc alloy mounting element comprising a bracket and a bolt. The zinc alloy of the zinc alloy mounting element increases a rigidity of the mounting element, the zinc alloy having less than 5% aluminum by weight and less than 5% copper by weight; and at least one sensor coupled to the zinc alloy mounting element for mounting to the component of interest. The at least one sensor measures at least one condition parameter of the component.

Abstract: A valve timing change device includes: a housing rotor (10); a vane rotor; a fastening bolt (40); and an advance angle oil passage communicating with an advance angle chamber and a delay angle oil passage communicating with a delay angle chamber, via oil passages which are open at intervals on an outer-circumferential surface of the fastening bolt. The vane rotor includes: a rotor body (20) formed of a material having a thermal expansion coefficient greater than that of the fastening bolt; and a rotor sleeve (30) that is formed of a material having a thermal expansion coefficient equal to that of the fastening bolt and is integrally incorporated such that the rotor sleeve does not contact a cam shaft and tightly contacts the outer circumferential surface (41a), in a region in which the advance angle oil passage (23a) and the delay angle oil passage (35) are blocked from each other.

Abstract: A continuously variable valve duration apparatus may include a camshaft, a plurality of first cams and second cams of which a cam key is formed respectively thereto, and of which relative phase angles with respect to the camshaft are variable, a plurality of rotation rings mounted to the camshaft and of which a ring key is formed thereto respectively, a plurality of inner brackets transmitting rotation of the camshaft to the cam keys of the first cams and the seconds respectively, a plurality of slider housings of which each inner bracket is rotatable inserted therein, a support bracket connecting the slider housings and a control portion selectively moving the support bracket and moving positions of the slider housings so as to change rotation centers of the inner brackets.

Abstract: This control apparatus for an engine includes an engine, an injector, a spark plug, an intake electric S-VT, an exhaust electric S-VT, and a controller. The controller outputs a control signal to at least one of the intake electric S-VT and the exhaust electric S-VT so as to perform valve control of opening an intake valve when an exhaust valve is open, and then outputs a control signal to the spark plug at predetermined ignition timing such that, after air-fuel mixture is ignited and combustion is started, unburned air-fuel mixture is combusted by autoignition.

Abstract: A variable valve system including a crank angle sensor that measures a rotation angle of a crankshaft, a cam angle sensor that measures a rotation angle of a camshaft coupled to the crankshaft and which opens and closes valves, and a controller that controls the internal combustion engine. At least one of the crank angle sensor or the cam angle sensor is configured as an absolute angle sensor that measures an absolute rotation angle and outputs a voltage signal corresponding to this rotation angle. The controller is configured to perform a correction operation that corrects a rotation angle value calculated based on the voltage signal.

Abstract: A second rotor and a third rotor are accommodated in a first rotor. A fitting portion of the third rotor is located in an engagement hole of the second rotor to engage the third rotor with the second rotor. The third rotor is rotational about an axis, which is eccentric to an axis of the first rotor, to vary a relative rotational phase of the first rotor to the second rotor and to accelerate and decelerate rotation of the second rotor. When friction arises between the second rotor and the fitting portion, a frictional force acts in a direction to reduce a rotational moment acting on the third rotor. A friction coefficient between the second rotor and the fitting portion is greater than a friction coefficient between ferrous objects.

Abstract: A mechanism provides high pressure fluid to a cam phaser on demand. The mechanism includes a positive displacement pump within the camshaft which is driven by a pin to compress and trigger fluid to be dispensed to the phaser.

Abstract: An internal combustion engine includes a fuel injection system including a fuel injector disposed to inject fuel into the combustion chamber, and a plasma ignition system including a groundless barrier discharge plasma igniter that protrudes into the combustion chamber. A controller includes an executable instruction set to control the engine in a compression-ignition mode when the output torque request indicates a low load condition, including instructions to control a variable valve actuation system and control the plasma ignition system to execute plasma discharge events subsequent to controlling the fuel injection system to execute a fuel injection event, wherein the fuel injection event achieves a cylinder charge having a lean air/fuel ratio.

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 adjusting device (1) is provided having a camshaft adjuster (2, 3) and a camshaft (4) characterized in that the camshaft (4) include a camshaft end (5) which is designed to receive a first hydraulically actuatable camshaft adjuster (2) as well to receive a second hydraulically actuatable camshaft adjuster (3).

Abstract: Provided is a valve timing control apparatus, for an internal combustion engine, capable of sufficiently draining hydraulic oil from between a pulley and a housing body. The pulley includes a through-hole extending axially therethrough at a position radially outward with respect to the outer peripheral surface of the housing body. The through-hole is formed so as to extend over a bottom portion and cylindrical portion of the pulley.

Abstract: Methods and systems are described for an engine with a cam torque actuated variable cam timing phaser. Phaser positioning control is improved by reducing inaccuracies resulting from inadvertent spool valve and/or phaser movement when the spool valve is commanded between regions. In addition, improved spool valve mapping is used to render phaser commands more consistent and robust.

Abstract: An adjustable camshaft may include an inner shaft and an outer shaft arranged coaxially thereto, and a phase shifter having a stator and a rotor. The stator may be connected to the outer shaft in a rotationally fixed manner, and the rotor may be connected to the inner shaft in a rotationally fixed manner. On an outside of the outer shaft, a first connection contour may be provided. The first connection contour may interact with a second connection contour on the stator formed complementarily thereto in a form-fit manner and enabling at least a tolerance offset in an axial direction.

Abstract: In a system that selects a large-cam as a driving cam at a time of a start of an engine, when an engine stop request is output, it is determined whether there is a small-cam cylinder for which a small-cam is selected as the driving cam. In a case where it is determined that there is a small-cam cylinder, a switching command for switching the driving cam from the small-cam to the large-cam is output. When an engine start request is output, the above determination is performed again. In a case where it is determined that there is a small-cam cylinder, the switching command is output to all solenoid actuators again. In addition, the drive of the fuel injector is suspended until the switching operation of the driving cam is completed for all cylinders.

Abstract: An adjustable camshaft may have an inner shaft and an outer shaft arranged coaxially thereto, the outer shaft having a recess, and the inner shaft having a recess open towards the outer shaft. The camshaft may also include a first cam connected to the inner shaft in a torque-proof manner, and a second cam connected to the outer shaft in a torque-proof manner. The camshaft may further include at least one axial bearing element fixed in the recess of the outer shaft and that engages in the recess of the inner shaft.

Abstract: The present disclosure relates to internal combustion engines and its teachings may be embodied in methods for controlling and identifying valve control times of an internal combustion engine. Some embodiments may include a method comprising: measuring dynamic pressure oscillations in the inlet section or outlet section of the respective series-production engine; determining a crankshaft-position feedback signal; determining the phase angles of selected signal frequencies using discrete Fourier transformation; and determining the valve control times of the respective series-production internal combustion engine based on the determined phase angles, the reference phase angles, and reference valve control times with the same signal frequencies of the pressure oscillations of a reference internal combustion engine or of a model function derived therefrom.

Abstract: A method for controlling intake and exhaust valves of an engine includes: controlling, by an intake continuous variable valve timing (CVVT) device and an exhaust CVVT device, opening and closing timings of the intake valve and exhaust valves; determining, by a controller, a target opening duration of the intake and exhaust valves based on an engine load and an engine speed; modifying, by an intake continuous variable valve duration (CVVD) device and by an exhaust CVVD device, current opening and closing timings of the intake valve and/or exhaust valve based on the target opening duration; and advancing or retarding, by the intake and/or exhaust CVVD devices, the current opening timing of the intake and exhaust valves while simultaneously retarding or advancing the current closing timing of the intake and exhaust valve by a predetermined value based on the target opening duration.

Abstract: A method of forming a target wheel for a camshaft phaser assembly is disclosed. The method includes providing a sheet metal body, and stamping the sheet metal body to form a sensor tab. The sensor tab includes a medial flange positioned between first and second axially extending edges. The sensor tab includes: at least one inner corner defined between the medial flange and at least one of the first axially extending edge or the second axially extending edge, and at least one outer corner defined between the medial flange and at least one of the first axially extending edge or the second axially extending edge. The method includes forming a groove in the at least one inner corner.

Abstract: A method of controlling an operation of an inlet valve system arranged in connection with each cylinder of an internal combustion piston engine, includes monitoring at least one parameter relating to engine load conditions, controlling using a primary control procedure an opening and closing timing of an inlet valve in response to the at least one parameter, and feeding charge air into the cylinder when the inlet valve is open. In a secondary control procedure a parameter relating to engine load conditions is measured and the closing timing of the inlet valve of the inlet valve system is controlled in response to the at least parameter independently from and with higher priority than the primary control procedure.

Abstract: Camshaft adjusting devices are disclosed. In one example, a camshaft adjusting device may include a camshaft adjuster and a camshaft. The camshaft may include a camshaft end which is configured both to receive a hydraulically actuatable camshaft adjuster and to receive an electromechanically actuatable camshaft adjuster. The camshaft end may have two different threads for receiving a bolt.

Abstract: An oil drain preventing device for a continuously variable valve timing apparatus includes: an advance angle oil passage connected to a continuously variable valve timing (CVVT) journal from an an oil control valve (OCV) groove to which an oil control valve (OCV) is mounted to supply an oil supplied from a hydraulic pump to a continuously variable valve timing (CVVT) apparatus; a retard angle oil passage connected to the CVVT journal from the OCV groove; and a valve unit mounted to the advance angle oil passage and the retard angle oil passage between the oil control valve and the CVVT journal for preventing the oil supplied to the continuously variable valve timing apparatus from being drained by selectively opening/closing the advance angle oil passage and the retard angle oil passage according to a starting ON or a starting OFF of the engine.

Abstract: A camshaft phaser arrangement configured for a concentric camshaft assembly having an inner camshaft and an outer camshaft is provided. The camshaft phaser arrangement can facilitate independent phasing of intake and exhaust valves. The camshaft phaser arrangement includes a first driven wheel and a second driven wheel, both configured to be driven by a driving wheel. A first camshaft phaser is connected to the first driven wheel and configured to be connected to either the inner or outer camshaft. A second camshaft phaser is connected to the second driven wheel and configured to be connected to either the inner or outer camshaft which is not connected to the first driven wheel. A motion transfer assembly can connect the second camshaft phaser to the concentric camshaft assembly. One or both of the camshaft phasers can be an electric camshaft phaser or a hydraulic camshaft phaser.

Abstract: A valve opening/closing timing control apparatus includes: a driving side rotator configured to rotate synchronously with a crankshaft of an internal combustion engine; a driven side rotator disposed coaxially with a rotation axis of the driving side rotator and configured to rotate integrally with a valve opening/closing camshaft; a connecting bolt disposed coaxially with the rotation axis to connect the driven side rotator to the camshaft, and having an advanced angle port and a retarded angle port formed to extend from an outer peripheral surface to an inner space thereof, the advanced angle port and the retarded angle port communicating with an advanced angle chamber and a retarded angle chamber between the driving side rotator and the driven side rotator, respectively; and a valve unit disposed in the inner space of the connecting bolt.

Abstract: The present invention is capable of more smoothly changing a phase of a cam shaft in a rotation direction. A variable valve mechanism changes an opening/closing timing of an intake valve or an exhaust valve in response to an engine rotation speed. The variable valve mechanism includes: a cam sprocket which rotates in response to a rotation of a crank shaft; an intake cam shaft which is integrated with an intake cam and is provided to be rotatable relatively to the cam sprocket; and a link member that transmits a rotation from the cam sprocket to the intake cam shaft. The link member is supported by the cam sprocket to be swingable and swings in response to a change in rotation speed of the cam sprocket to rotate the intake cam shaft relatively to the cam sprocket.

Abstract: A method of noise filtering a sliding camshaft actuator pin position output signal includes determining an actual pin position output signal period of a sliding camshaft actuator that occurs within a predetermined output signal period measurement window and establishing a pin position output signal filter window based on the actual pin position output signal period. Thereafter, the actual pin position output signal period from the sliding camshaft actuator is monitored by a control module and signals that occur outside of the pin position output signal filter window are rejected accordingly to prevent responding to false triggers.

Abstract: A camshaft adjusting device, including a vane cell adjuster is provided. The vane cell adjuster includes a stator-that can be connected to a crankshaft of an internal combustion engine, a rotor, which is rotatably supported in the stator and can be connected to a camshaft and has a plurality of working chambers, which are provided between the stator and the rotor and to which a pressure medium can be applied, and a central screw for clamping the rotor to the camshaft by clamping surfaces of the rotor and of the camshaft facing each other. At least one of the clamping surfaces of the rotor and/or of the camshaft is profiled at least in some sections in order to create a form-closed connection.

Abstract: Systems and methods for varying a rotational relationship between a cam shaft and a crank shaft on an internal combustion engine (i.e., cam phasing) are provided. In particular, systems and methods are provided that facilitates a rotary position of a first component to be accurately controlled with a mechanism causing a second component, which can be coupled to the cam shaft or crank shaft, to follow the rotary position of the first component.

Abstract: Provided is a hydraulic pressure control valve capable of exhibiting a filter detent function without degrading the assemblability of filters to a valve body. A hydraulic pressure control valve according to the present invention includes a valve body having a plurality of opening portions formed in a cylindrical peripheral wall, annular grooves, and a restraining portion provided in each of the annular grooves, a spool valve, and filters wound to cover the opening portions, respectively, and each having a mesh portion for filtering hydraulic fluid and a mask portion covering the restraining portion.

Abstract: A control unit for an internal combustion engine is configured for suppressing knocking phenomenon with reduction of overlap, while maintaining an opening timing of an exhaust valve at the time of low-rotation, high-load state. A valve opening/closing timing control apparatus includes a phase adjustment mechanism configured to vary a relative rotational phase between a driving side rotary body rotatable in synchronism with a crankshaft of the internal combustion engine and a driven side rotary body rotatable together with an exhaust cam shaft. After an opening timing of the exhaust valve, an advancing operation is effected for displacing the relative rotational phase in the advancing direction relative to the opening timing.

Abstract: Methods and systems are provided for controlling a variable camshaft timing system. In one example, a method may include actuating a camshaft phaser with a camshaft duty cycle determined based on a sampled camshaft position and an estimated camshaft position, the estimated camshaft position determined based on a previously determined camshaft duty cycle.

Abstract: Methods and systems are provided for reducing accumulation of condensate in an engine intake during an engine non-combusting condition. In one example, during an engine non-combusting condition, responsive to a higher than threshold ambient humidity and a lower than threshold intake manifold temperature, intake and exhaust valves of deactivatable cylinders may be closed in order to seal the cylinders and during an immediately subsequent engine combusting condition, the intake and exhaust valves of the deactivatable cylinders may be activated and combustion may be resumed in the deactivatable cylinders before starting combustion in non-deactivatable cylinders. Also, during the engine non-combusting condition, residual hot exhaust may be recirculated to the intake manifold to evaporate condensate in the intake manifold.

Abstract: A valve timing control apparatus for an internal combustion engine includes: a drive rotation member; a housing; a vane rotor; and a front plate, the drive rotation member including a positioning mechanism including a guide portion which is formed on an inner circumference surface of the cylindrical wall, and which has an inclined shape whose an inside diameter is decreased from the one axial end side to the other axial end side, a mounting protrusion portion which is formed on the other end side of the guide portion, and on which an outer circumference surface of the housing is mounted to be positioned.

Abstract: A system and method for sensing a camshaft barrel position of a sliding camshaft includes at least one sliding camshaft having at least one camshaft barrel and at least one position shifting slot disposed in the at least one camshaft barrel. At least one actuator is provided for engaging the at least one position shifting slot on the rotating sliding camshaft and shifting position of the at least one camshaft barrel and at least one sensor is provided for detecting the shifted position of the at least one camshaft barrel wherein the camshaft barrel includes position identifying features.

Abstract: An output element (1) of a camshaft adjuster (8) is described, in which the output element (1) has a contact surface (2) for rotatably fixed connection to a camshaft; the contact surface (2) has at least one outlet port (3) of an oil channel (4) of the output element (1), which may be situated opposite an outlet port of an oil channel of the camshaft in order to conduct hydraulic medium from the camshaft into the output element (1); the contact surface (2) has a structuring (6) in order to increase the torque transmission between the output element (1) and the camshaft; this structuring (6) is structure-free in the area (5) around the outlet port (3) and this area (5) is designed for sealing the outlet port (3) with respect to the surrounding environment.