The disclosure relates to a vane type camshaft adjuster for a motor vehicle drive train. The camshaft adjuster having a stator, a rotor arranged such that it can rotate relative to the stator, working chambers formed between the stator and the rotor, each working chamber being divided into two sub-chambers by a radially projecting blade of the rotor, and a reservoir connected to the sub-chambers for storing hydraulic medium. The sub-chambers can be connected to a pump or a tank according to a switch position of a control valve of the camshaft adjuster. The control valve has a switch position in which a first sub-chamber of the two sub-chambers is connected to the tank and a second sub-chamber of the two sub-chambers is blocked from the pump.

A VVT includes: a cylindrical case to rotate synchronously with a crankshaft; a rotor housed in the case and to rotate synchronously with a camshaft; a first cover that has a first through hole and closes one opening of the case; a second cover that has a second through hole and closes another opening of the case; a first fastening member that fixes, in a state of passing through the first through hole, the first cover and the case; and a second fastening member that fixes, in a state of passing through the second through hole, the second cover and the case.

Provided are: a rear plate 13 enclosing an axial end opening of a housing body; a lock pin 30 configured to travel forward and backward in a slide hole formed in a first vane of a vane member; and an annular lock-hole-forming part 31 press-fitted to a retaining hole 13c in an inner end surface of the rear plate, forming a lock hole 32 therein. A projection 35 having a flat distal end surface 35a is formed at one circumferential end side of an inner peripheral surface of the lock-hole-forming part, and recesses 37, 37 continuous with the inner peripheral surface of the lock hole are formed on corresponding sides of the projection in the circumferential direction of the lock hole. This ensures smooth engagement of the locking pin in the lock hole, and enables smooth supply and drainage of hydraulic pressure to and from the lock hole.

The valve opening/closing timing control device includes: the driving rotating body; the driven rotating body; an advancing chamber and a retarding chamber formed by partitioning a fluid pressure chamber between the driving and driven rotating bodies; and a phase control unit supplying pressurized fluid to the advancing or retarding chamber via an advancing channel or a retarding channel penetrating through the driven rotating body. In the driven rotating body, an outer circumferential member and an inner circumferential member are formed integrally/coaxially with each other. The advancing and retarding channel form a predetermined angle. Between every pair of an advancing channel and a retarding channel, a groove portion is formed in one of an inner circumferential surface of the outer circumferential member and an outer circumferential surface of the inner circumferential member, and an elongated protruding portion is formed on the other, at a position that corresponds to the groove portion.

A camshaft adjusting device having improved lubricant management including adjusting gearing for adjusting the angular position of a camshaft is proposed, the adjusting gearing having an input shaft, which can be coupled to a crankshaft, an output shaft, which can be coupled to the camshaft and an adjusting shaft, which can be coupled to an actuator. The adjusting gearing defines a rotational axis and the gearing forms a gearing interior, in which the input shaft, the output shaft and the adjusting shaft are operatively interconnected. The camshaft adjusting device has a lubricant supply for supplying the gearing interior with a lubricant and the lubricant supply is designed to form a lubricant sump in the gearing interior, the sump being radially outwards situated relative to the rotational axis.

A multi-part rotor (1) for a hydraulic camshaft adjuster, including two partial rotor members (2) which rest against each other along a separation plane (3) extending perpendicular to the axial direction and which jointly define hydraulic medium ducts (4) extending within said separation plane (3) and, including an additional rotor member (5) that conducts hydraulic medium from opposite axial directions in a targeted manner to different hydraulic medium ducts (4). The additional rotor member (5) or at least one positively engaging anti-twist element (6) is secured to one or both partial rotor members (2) for conjoint rotation therewith.

The present disclosure provides a camshaft phase adjuster, including: a stator provided with a plurality of hydraulic chambers; a rotor rotatably disposed in the stator and provided with a basic body and a plurality of blades fixed to the basic body, the basic body has a first end surface and the second end surface which face opposite directions along an axial direction, the plurality of blades are arranged in intervals along the circumferential direction and divide the hydraulic chambers into first pressure chambers and second pressure chambers, respectively; wherein the basic body is provided with a plurality of first oil holes and a plurality of second oil holes which are communicated with the first pressure chambers and the second pressure chambers, respectively, the second oil hole is provided with at least two oil sub-holes, a first oil sub-hole extends along a radial direction of the basic body and is located on a same plane, with the first oil hole, perpendicular to a central axis of the rotor, the first oil sub-hole communicates with the second pressure chamber, and the second oil sub-hole penetrates through the first end surface along an axial direction of the basic body. Accordingly, technical solution of the present disclosure solves the problems of large in axial dimension and great in mass of existing camshaft phase adjusters.

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.

A valve opening/closing timing control apparatus includes: a driving side rotating body rotating synchronously with a crankshaft of an internal combustion engine; a driven side rotating body included in the driving side rotating body and rotating integrally with a camshaft on a same axis as a rotation axis of the driving side rotating body; a hydraulic fluid control mechanism displacing a relative rotation phase between the driving side rotating body and the driven side rotating body by supplying a hydraulic fluid to one of an advance angle chamber and a retardation angle chamber; a lock mechanism; and first and second unlocking flow paths configured to communicate with the first pressure receiving surface. The lock mechanism includes a lock member including an engaging portion, a main body portion, and a first pressure receiving surface a biasing member, and a lock recess.

A camshaft phaser, including: a stator including radially inwardly extending protrusions with radially outermost ends; a rotor including radially outwardly extending protrusions radially outermost ends; chambers at least partially bounded by a inwardly extending protrusion and an outwardly extending protrusion; first seals disposed in the radially innermost ends and facing the rotor; second seals disposed in the radially outermost ends and facing the stator; 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 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 to enable rotation of the rotor, with respect to the stator, in a second circumferential direction opposite the first circumferential direction.