Abstract: The rubber element is positioned in the drive end of the chain guide and provides dampening and noise reduction for the guide, thereby reducing the overall noise from the meshing of the chain and the guide.

Abstract: A captive securing arrangement for securing a connection element in an opening with a securing element that protects the connection element from falling out. The securing element is constructed integrally from one of the components to be connected and projects in the radial direction into the opening, reducing the opening. The connection element is constructed as a screw that has a shaft diameter D1, a threading diameter D2, and the opening has an opening diameter D3, and a reduced opening diameter D4 that is reduced in the radial direction by the securing element, where D1<D4<D2<D3. The securing element is constructed integrally with the component has a material thickness h that is larger or equal to a thread pitch of the connection element.

Abstract: A valve drive (1, 1?) of an internal combustion engine with stroke-variable gas-exchange valve activation is provided. The valve drive includes a camshaft (2, 2?) with a carrier shaft (3) and a cam piece (4, 4?) that is arranged in a rotationally locked way on the carrier shaft and that can move between axial positions and that has a cam group of directly adjacent cams (14a-c, 15a-c) with different lobes and a groove-shaped axial link (16, 16?) and an activation element (18, 19) that can be coupled in the axial link for shifting the cam piece on the carrier shaft. The cam piece is provided with a bearing journal (12, 13, or 12?) on which the camshaft is supported in the radial direction at a camshaft bearing point (9, 10, or 9?) of the internal combustion engine. Here, the axial link is constructed overlapping with the camshaft bearing point on the bearing journal in the axial direction, and the activation element runs in the camshaft bearing point.

Abstract: A ball nut of a ball screw drive, in which the ball nut is mounted on a threaded spindle via balls. The ball nut has on its inner circumference a ball groove wound helically around an axis that extends over at least one winding, and a deflection body, with deflection ends, arranged on a circumferential face of the ball nut. The deflection ends engage into a recess of the ball nut, and adjoin an end and a start of the ball groove. The deflection body is supported on one side in radial directions and on the other side on a machine part. The deflection body is connected at its axial ends to bearings for mounting on the machine part. The bearings, which project circumferentially, engage into the recesses of the ball nut and are arranged with their bearing faces approximately flush with the outer circumferential face of the ball nut.

Abstract: A hydraulic camshaft adjuster for an internal combustion engine. The hydraulic camshaft adjuster has a drive part that can be drive-connected to a crankshaft, an output part which has a central, first axial opening for the rotatably fixed connection to a first camshaft and is mounted such that it can be adjusted rotatably with respect to the drive part, a hydraulic actuating mechanism, by which a rotary angle position between the drive part and the output part can be adjusted, and a screw plug which is screwed to the drive part for closing the first axial opening. The screw plug is manufactured from a shaped part which is produced by a forming process without the removal of material.

Abstract: A deflecting body for a ball screw, which has two body parts to be connected to one another which delimit a deflecting channel which carries rolling bodies. Latching or jamming projections are provided on one or both body parts. The latching or jamming projections, in the assembled final position, latch or are jammed in a frictionally engaging manner in latching or jamming receptacles provided on the other body part.

Abstract: An electromagnetic actuating unit of a hydraulic control valve which has an armature disposed inside an armature chamber in an axially displaceable manner, and a pole core disposed in a recess. The pole core limits the armature chamber in a direction of movement of the armature. The geometry of the armature serves to adjust the characteristic line of the electromagnetic actuating unit.

Abstract: A traction engine drive (2), the components of which are integrated into an assembly unit (6) that can be pre-completed. A guide rail (7) having a clamp rail (10) is fixed in location by a clamping device (16) and a traction element (12) is disposed in conjunction with at least one traction mechanism wheel, so that a free length of the traction element is not present.

Abstract: A multiple clutch device, particularly a double clutch device, that has a reduced axial installation space and/or inexpensive production. The multiple clutch device has at least two friction clutch arrangements, torque-transferring friction element carriers, each of which is rotationally fixedly connected to a frictional element of the frictional clutch arrangements, and at least one roller bearing. The roller bearing is designed to support at least one of the frictional element carriers. The supported frictional element carrier is designed as a race of the roller bearing.

Abstract: A rotor bearing for a wind turbine with a machine housing that is rotatably received on a tower. The housing has a generator, a wind-driven rotor with a rotor hub carrying rotor blades and a large rolling bearing carrying the rotor. The large rolling bearing has a first bearing ring, which is non-rotatably fastened on the housing and arranged coaxially to the rotor hub, and a second hearing ring, which is rotatably held on the first bearing ring and fastened to the rotor hub, and rolling elements rolling between the bearing rings. The large rolling bearing is connected to a planetary gear which is connected to the generator and has a ring gear with a peripheral internal gear, planet gears received on planet carriers and a central sun gear. The radially inner bearing ring is also the ring gear connected to the generator, its interior being configured with the peripheral internal gear.

Abstract: A modular construction camshaft adjuster for the camshaft drive of an internal combustion engine with a chain or belt wheel, which has at least one wheel rim facing radially outwards with tooth engagement recesses, an annular wheel plate around a central circular opening and an essentially cylindrical wheel wall with a wall thickness, projecting in an axial direction from the annular wheel plate, such that the wheel wall and the wheel plate together form a cup shape. The minimum wall thickness of the essentially cylindrical wheel wall beneath the at least one wheel is equal to half the tooth engagement recess and the cup-shaped chain or belt wheel is made from a lightweight material.

Abstract: Proposed is a switchable cam follower (1) of a valve train of a combustion engine, having an external lever (2) which is encompassing an internal lever (2) between its arms (3), which levers (2, 4) are pivotably moveable relative to one another on an axis (6) that is applied to a valve-side end (5), wherein the cam follower (1) has a stop (8) for a gas exchange valve on an underside (7) on the valve-side end (5) and on the other end (9) has a complementary face (10) for a support element, wherein the cam follower (1) has a start face (12) on an upper side (11) for at least one high-lift cam, wherein in one receptacle (13) of one of the cams (4, 2), a coupling means (14) is seated, which can be brought into engagement in sections in case of coupling (high lift) with a driving surface (15) of the respective other lever (2, 4) and wherein a lost-motion spring means (16) is clamped between the two levers (2, 4), which means is positioned in the region of the other end (9) of the cam follower (1) and is embodied a

Abstract: Proposed is a switchable cam follower (1) of a valve train of a combustion engine, having an external lever (2) which is encompassing an internal lever (4) between its arms (3), which levers (2, 4) are pivotably moveable relative to one another on an axis (6) that is applied to a valve-side end (5), wherein the cam follower (1) has a stop (8) for a gas exchange valve on an underside (7) on the valve-side end (5) and on the other end (9) has a complementary face (10) for a support element, wherein the cam follower (1) has a start face (12) on an upperside (11) for at least one high-lift cam, wherein in one receptacle (13) of the internal lever (4) a coupling means (14) is seated, which is displaceable in the longitudinal direction and which can be brought into engagement in sections in case of coupling (high lift) with a driving surface (15) of the external lever (2) and wherein at least one torsion spring (16) as a lost-motion spring is clamped between the two levers (2, 4), which torsion spring is seated on

Abstract: A braking device, in particular for a motor vehicle, which has a brake disk, a brake caliper fitting around the brake disk, and two brake pads, which rest against the brake disk for the purpose of braking. One of the brake pads can be moved by a motor-driven ball screw which has a threaded spindle and a threaded nut. The ball screw is accommodated within the brake caliper. The threaded nut is connected to a piston which has the brake pad and which is seated on the threaded nut in such a way that it can be tilted relative to the threaded nut, and/or wherein the threaded spindle is mounted on the brake caliper in such a way that it can be tilted relative to the brake caliper.

Abstract: A motor control strategy for a hydraulic camshaft adjuster. The motor control strategy has a mechanical central lock which in turn has at least one rotor and one stator, between which hydraulically loadable chamber A and chambers B are provided. Locking pistons supported in an axially displaceable manner are provided in the rotor for the mechanical central lock. A hydraulic system and an electrically controllable solenoid valve are provided The valve is powered in a controlled manner by a motor control device, which receives an “ignition off” signal; the motor being turned off, and at least one signal for current angular position of the camshaft adjuster, which compares the angular position to at least one zone definition stored in the motor control device, forms control commands from the same, and transmits the control commands to the electric solenoid valve.

Abstract: A tappet (1), either for a high-pressure fuel pump or for a valve train of an internal combustion engine, with a housing (2) whose driven side (3) used for a contact of a tappet-following part forms a contact on a bottom side (4) of a bridge part (6) projecting through an inner casing (5) of the housing (2). An anti-rotation locking device (10) projects past the outer casing (8) of the housing with a first cylinder section (9) and sits in a window (7) of the housing (2), with this anti-rotation locking device (10) being provided as a cylindrical element, and tab-like projections (13) project from peripheral walls (11) of the window (7) and the anti-rotation locking device (10), standing “loose” in the window (7), snaps behind these projections.

Abstract: A switchable component (1) of a valve train of an internal combustion engine is provided, with a housing (2) in whose borehole (3) an inner element (4) is held so that it can move telescopically. At least one coupling piston (7) guided by an anti-rotation locking device (6) is located in a radial borehole (5) of the inner element (4) in a decoupled case, with a section (10) that is flattened in some areas being provided on the coupling piston on one axial side (9) starting from its outer end (8). The borehole (3) of the housing (2) has a window (11) with a complementary engagement surface (12) against which, in a coupled case, the coupling piston (7) can be displaced with its flattened section (10) when passing through the cam base circle. An edge (13) between the outer end (8) and the flattened section (10) of the coupling piston (7) is provided with a bevel (14) that is a surface section of an ellipsoid whose longitudinal axis runs parallel to the flattened section (10).

Abstract: A hydraulic unit (5) is provided for a cylinder head (2) of an internal combustion engine with a hydraulically variable gas-exchange valve train (1). In the hydraulic unit, a high-pressure chamber (11), a medium-pressure chamber (12), and a low-pressure chamber (16) used as the hydraulic medium reservoir are formed. The low-pressure chamber communicates via a throttle opening (17, 17?, 17?, 17??) with the medium-pressure chamber, and the throttle opening extends through a housing seal (23) produced as a separate component.

Abstract: A hydraulic unit (5) is provided for a cylinder head (2) of an internal combustion engine with a hydraulically variable valve train (1). In the hydraulic unit, a high-pressure chamber (11), a medium-pressure chamber (12), and a low-pressure chamber (16) used as the hydraulic medium reservoir are formed. The low-pressure chamber communicates via a throttle point (17, 17?, 17?, 17??) with the medium-pressure chamber, and the throttle point is formed by a displaceable valve body (19, 19?, 19?, 19??) and has through-flow cross sections of different sizes according to a position of the valve body.

Abstract: A control time adjusting device which adjusts the phase position of a camshaft with respect to an upstream drivetrain that drives the camshaft. The device has a hub element and a bell element which is coupled to the hub element in a variably adjustable manner with regard to the rotary phase position. The adjusting angle range is defined by stop structures. Additionally, adjusting cells, which are separated by radial webs and vane elements, are situated in an intermediate space between the hub element and bell element. The position and the peripheral length of the device, which is definitive for the pivoting travel of the adjusting cells and the arrangement of the vane elements with respect to one another, are adapted such that at least two different-sized adjusting angle ranges can be defined as a function of the assignment of the vane elements to the adjusting cells.