Schaeffler Technologies Ag & Co .kg

Holger Brenner

Olaf Boese

Jürgen Weber

Stefan Schelter

A stator-cover unit () for a camshaft adjuster designed for use in an internal combustion engine, having a toothed ring () for receiving a torque, there being integrally connected to said toothed ring a stator () in the form of a housing, having a locking cover () which is separate from the stator (), wherein the locking cover () is connected rotationally conjointly to the stator (), wherein the stator () and the locking cover (), at least during assembly, are held rotationally conjointly secured in said position by means of a projection () on one of the two components, which projection engages with a form fit into a recess () on the other of the two components. A camshaft adjuster having a rotor and having a correspondingly designed stator-cover unit (), wherein a piston can be introduced, movably in an axial direction, into an opening of the locking cover ().

Camshaft adjuster and stator cover unit for automatic adjustment of a locking device

A camshaft adjuster has a stator, a rotor rotatable relative to the stator with a hub for receiving a camshaft. First supply ducts and second supply ducts penetrate the hub radially, and a separating sleeve inserted with an end section into the hub and forms an outer axial supply space and an inner supply space which is separate from the former, wherein the outer axial supply space is connected in flow terms to the first supply ducts and the inner axial supply space is connected in flow terms to the second supply ducts. On the outer shell, the separating sleeve includes a number of axial grooves at least partially forming the outer axial supply space connected to the first supply ducts. The separating sleeve includes a number of radial apertures which connect the inner supply space to a second supply line.

Camshaft adjuster and separating sleeve for a camshaft adjuster

A camshaft adjuster including a drive element, a first output element and a second output element all having a plurality of vanes; the two output elements can be braced relative to one another in the peripheral direction using an expanding spring located between the output elements; only the first output element is designed in such a way as to be connectable to a camshaft; a locking mechanism can lock the two output elements together and unlock same such that the two output elements are jointly or separately rotatable relative to the drive element; a vane of the second output element is in contact with a vane of the drive element, and the expanding spring puts a vane of the first output element at a distance from the vane of the drive element, so the first output element is in an angular position relative to the drive element which lies within the angle adjustment range between the first output element and the drive element.

Camshaft adjuster

A camshaft adjuster for adjusting the angle of rotation of a camshaft, including a stator which can be driven by a crankshaft of an internal combustion engine and which has a plurality of radially inwardly protruding stator lands, and a rotor having a plurality of vanes projecting radially outwards from a radially inner ring, and an annular gap which is provided between the stator and the rotor and which is divided by a plurality of stator lands into working chambers which are in turn divided by the vanes into pressure chambers acting in opposite directions, wherein the rotor is divided into at least two rotor parts in a dividing plane arranged perpendicular to an axis of rotation of the camshaft adjuster, wherein the dividing plane of the rotor intersects at least one pressure medium line, and the pressure chambers acting in a first direction are separated from the pressure chambers acting in a second direction by at least one seal between a first and a second end face of the two rotor parts is provided.

A cam shaft adjuster a drive element and an output element, wherein the drive element and the output element are arranged so as to be rotatable relative to one another and the camshaft adjuster includes a cover element which is fastened non-rotatably to the drive element or to the output element, wherein the drive element or the output element has a through-bore through which a screw passes, wherein the screw engages in a threaded bush, wherein the threaded bush projects both into a through-bore of the cover element and into the through-bore of the drive element or output element.

A camshaft adjuster () has a plurality of locking mechanisms () arranged on different pitch circles concentrically with respect to the axis of rotation () of the camshaft adjuster ().

A camshaft adjustment device () for an internal combustion engine of a motor vehicle, with a drive part (), such as an outer stator, and a driven part (), such as an inner rotor. The driven part is supported so that it can rotate relative to the drive part between a first angular position and a second angular position. A separate insert part () originating from the drive part or the driven part is further arranged in a rotational angle limiting connecting link () that is formed in the drive part or the driven part, the insert part is arranged so that it can be brought into blocking contact with two blocking elements (), such as pins or pegs, that can move in the axial direction. A control drive with such a camshaft adjustment device and an internal combustion engine with such a control drive are also provided.

Insert part for camshaft adjuster with center locking

A camshaft adjuster () is provided with a drive element () and an output element (), including a locking mechanism () which is arranged in a locking bore () and has precisely two locking pistons () and a locking spring (), the locking bore () is formed in the drive element () or in the output element () and the respective other element () which does not have the locking bore () includes the locking receivers () associated with the locking pistons ().

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Obermichelbach, Germany

Holger Brenner