Abstract: A method for producing a bush and a bush for a rotor shaft are disclosed. The method includes: providing a flat metal strip; introducing at least one of (i) a surface structure onto one side of the flat metal strip for at least one of enlarging a heat-transferring area and directing a coolant, and (ii) at least one hole into the flat metal strip; and rolling up the flat metal strip to form the bush. The surface structure, if provided, lies on an inner surface area of the bush.

Abstract: A rotor shaft for a rotor of an electric machine is disclosed. The rotor shaft includes a hollow-cylindrical tubular body surrounding a tubular body interior that is open at least on one of its two front sides. A front-side opening defined by the tubular body on the at least one front side is closed via a bearing element that is non-rotatably connected to the tubular body. An annular support body is arranged radially on an outer circumferential side of the tubular body and non-rotatably connected to the tubular body. The support body supports itself axially on a front side of the bearing element facing the tubular body.

Abstract: An assembly for an electric machine may include a rotor shaft and a temperature sensor. The rotor shaft may rotate about an axial rotation axis and/or the rotor shaft may include a wall extending in a circumferential direction and axially. In an interior of the rotor shaft, the wall may radially delimit a hollow space. The temperature sensor may be attached radially inside the wall. The rotor shaft may further include a first axial end face, a second axial end face located opposite the first axial end face, an inlet opening for admitting a cooling fluid into the hollow space, and at least one outlet opening for discharging the cooling fluid out of the hollow space. The cooling fluid may flow along the temperature sensor.

Abstract: A rotor shaft for a rotor of an electric machine is provided. The rotor shaft includes a hollow shaft extending along an axial direction that is rotatably mounted about an axis of rotation, which delimits a hollow shaft interior that can be flowed through by a coolant. Further, the rotor shaft includes a sensor device arranged in the hollow shaft interior for determining a current rotary position or/and current rotational speed of the hollow shaft.

Abstract: A sliding cam system for an internal combustion engine is disclosed. The sliding cam system includes a carrier shaft and an axially adjustable cam sleeve arranged on the carrier shaft. The cam sleeve is axially adjustable relative to the carrier shaft between a first axial position and a second axial position, and axially fixable in the respective axial position by a detent device. The detent device includes a first receiving groove assigned to the first axial position and a second receiving groove assigned to the second axial position. The detent device further includes a preload element disposed on the cam sleeve. The preload element preloads a detent element arranged between the carrier shaft and the cam sleeve towards the carrier shaft. The detent element is received in the first receiving groove in the first axial position and the second receiving groove in the second axial position.

Abstract: A core disc or a laminated core having at least two core discs for a rotor of an electric motor may include an inner lateral surface and at least one radial recess for receiving adhesive arranged on the inner lateral surface.

Abstract: A rotor for an electrical machine may include a rotor shaft, a hollow inner shaft, two end discs, and at least one outlet opening for discharging cooling medium. The rotor shaft may be configured as a hollow shaft having an inner lateral surface. The inner shaft may be arranged in the rotor shaft and may include at least one opening at least in one axial center for ejecting cooling medium onto the inner lateral surface of the rotor shaft to cool the inner lateral surface. The two end disks may delimit an interior of the rotor shaft in an axial direction. Each of the two end disks may include a central through opening through which the inner shaft is guided. The at least one outlet opening may be disposed in at least one of (i) each of the two end disks and (ii) a lateral surface of the rotor shaft.

Abstract: The present disclosure concerns a slotted guide of a valve train of an internal combustion engine. The slotted guide includes two guide tracks, which cross one another in a crossing region, for guiding a switching pin of a cam follower of the valve train. The two guide tracks have an on-track region, a crossing region, and an off-track region. At least one radial projection, structured and arranged to protrude beyond the slotted guide in a radial direction, is provided in or downstream from the off-track region of at least one guide track.

Abstract: A valve drive device for actuating valves of an internal combustion engine a rocker arm device and a switchover device that includes at least two actuators for the at least one rocker arm device. The two actuators respectively include a switching element adjustable between a first position and a second position; a resetting device for resetting the switching element with a resetting force into the second position; a holding coil for offsetting the resetting force of the resetting device; a switching coil that counteracts the resetting force during operation. The switching coil and the holding coil adjust the switching element into the first position.

Abstract: A rotor of an electric motor may include a basic shaft, a plurality of plate stacks, at least one balancing element structured and arranged to offset imbalances, and a drive element. The at least one balancing element and the drive element may be integrally provided as a one-piece, monolithic component.

Abstract: A valve drive device for actuating valves of an internal combustion engine a rocker arm device and a switchover device that includes at least two actuators for the at least one rocker arm device. The two actuators respectively include a switching element adjustable between a first position and a second position; a resetting device for resetting the switching element with a resetting force into the second position; a holding coil for offsetting the resetting force of the resetting device; a switching coil that counteracts the resetting force during operation. The switching coil and the holding coil adjust the switching element into the first position.

Abstract: A valve train may include a camshaft, a cam sleeve adjustable in an axial direction between first and second positions and non-rotatably arranged on the camshaft, a first cam and at least one second cam, a pin and at least one cam follower mounted thereon, a guide contour arranged on the cam sleeve and having first and second guide tracks, and a control pin optionally engaging in the first or second guide track to adjust the cam sleeve between the first and second positions. The at least one cam follower in the first and second positions may interact respectively with the first and second cams. On the camshaft or an internal surface of the cam sleeve, first and second snap-in recesses and a third snap-in recess therebetween may be arranged. A snap-in device having a snap-in element preloaded into the snap-in recesses may be provided, the snap-in recess fixing the cam sleeve in the first or second position. The first and second guide tracks may intersect in an intersection region.

Abstract: A valve control for an internal combustion engine may include a tilt lever, a cam shaft, two cam groups arranged on the cam shaft, a roller bolt arranged on the tilt lever, and an adjusting assembly including a switching pin that engages through the roller bolt. The roller bolt may include two rotatable rollers. The switching pin may be adjustable into a switching position and into a home position. The switching pin may cooperate with a slotted guide of the cam shaft when in the switching position and may have no contact with the slotted guide when in the home position. When the switching pin is in the switching position, the two rollers may be axially adjustable via the adjusting assembly. The switching pin may be axially movable in the roller bolt and the two rollers may be axially movable on the roller bolt into one of two roller positions.

Abstract: A valve train of an internal combustion engine may include a camshaft, first and second cams, a rocker arm assembly having a displacement bolt, which may be adjustable between at least first and second positions in the axial direction and on which at least one cam roller, may be mounted in an axially fixed and rotatable manner, wherein the displacement bolt may be mounted in associated bearing lugs of the rocker arm assembly, a guide contour arranged on the camshaft and having first and second guide tracks, a switching pin, which may be arranged in the displacement bolt and which may optionally engage with the first or second guide track to adjust the displacement bolt between the first and second positions. In the first and second positions, the cam roller may cooperate with the first and second cams, respectively. First and second catch recesses may be provided on the displacement bolt.

Abstract: The present disclosure describes a valve train for an internal combustion engine. The valve train includes a camshaft with a first cam and a second cam, a rocker lever assembly with a shifting pin that is adjustable in an axial direction between at least two positions, a cam follower mounted on the shifting pin, an adjusting device for adjusting a control pin arranged in the shifting pin, and a guide contour arranged on the camshaft having a first guide track and a second guide track intersecting the first guide track in an X-like manner. The control pin engages into the guide tracks and adjusts the shifting pin to adjust the cam follower. The adjusting device includes a control rod that is shiftable parallel to the shifting pin and contacts the control rod.

Abstract: A valve train may include a camshaft, a cam sleeve adjustable in an axial direction between first and second positions and non-rotatably arranged on the camshaft, a first cam and at least one second cam, a pin and at least one cam follower mounted thereon, a guide contour arranged on the cam sleeve and having first and second guide tracks, and a control pin optionally engaging in the first or second guide track to adjust the cam sleeve between the first and second positions. The at least one cam follower in the first and second positions may interact respectively with the first and second cams. On the camshaft or an internal surface of the cam sleeve, first and second snap-in recesses and a third snap-in recess therebetween may be arranged. A snap-in device having a snap-in element preloaded into the snap-in recesses may be provided, the snap-in recess fixing the cam sleeve in the first or second position. The first and second guide tracks may intersect in an intersection region.

Abstract: A valve control for an internal combustion engine may include a tilt lever, a cam shaft, two cam groups arranged on the cam shaft, a roller bolt arranged on the tilt lever, and an adjusting assembly including a switching pin that engages through the roller bolt. The roller bolt may include two rotatable rollers. The switching pin may be adjustable into a switching position and into a home position. The switching pin may cooperate with a slotted guide of the cam shaft when in the switching position and may have no contact with the slotted guide when in the home position. When the switching pin is in the switching position, the two rollers may be axially adjustable via the adjusting assembly. The switching pin may be axially movable in the roller bolt and the two rollers may be axially movable on the roller bolt into one of two roller positions.

Abstract: A valve train of an internal combustion engine may include a camshaft, first and second cams, a rocker arm assembly having a displacement bolt, which may be adjustable between at least first and second positions in the axial direction and on which at least one cam roller, may be mounted in an axially fixed and rotatable manner, wherein the displacement bolt may be mounted in associated bearing lugs of the rocker arm assembly, a guide contour arranged on the camshaft and having first and second guide tracks, a switching pin, which may be arranged in the displacement bolt and which may optionally engage with the first or second guide track to adjust the displacement bolt between the first and second positions. In the first and second positions, the cam roller may cooperate with the first and second cams, respectively. First and second catch recesses may be provided on the displacement bolt.

Abstract: The present disclosure concerns a slotted guide of a valve train of an internal combustion engine. The slotted guide includes two guide tracks, which cross one another in a crossing region, for guiding a switching pin of a cam follower of the valve train. The two guide tracks have an on-track region, a crossing region, and an off-track region. At least one radial projection, structured and arranged to protrude beyond the slotted guide in a radial direction, is provided in or downstream from the off-track region of at least one guide track.

Abstract: A valve drive of an internal combustion engine may include a camshaft, at least one cam follower, and a hydraulic actuating element. The camshaft may include at least one first cam structured as a brake cam and a second cam structured as an exhaust cam. The at least one first cam may have a reduced cam lift relative to the second cam. The at least one cam follower may be connected to an exhaust valve of the internal combustion engine via a rocker. The hydraulic actuating element may include a plunger that is adjustable to an extended position and a retracted position. When the plunger is in the extended position, the hydraulic actuating element may be operatively connected to the brake cam providing a braking stroke. When the plunger is in the retracted position, the hydraulic actuating element may be operatively disconnected from the brake cam providing a cylinder cutout.