An assembled camshaft and a method for producing an assembled camshaft are disclosed. The assembled camshaft may include a camshaft main body having a longitudinal axis. The camshaft main body may include a first axial section and a second axial section disposed between the first axial section and a third axial section. The second axial section may have an outer profile including a toothing extending in an axial direction. At least one sliding cam may be arranged on the second axial section. A drive wheel may be arranged on a free end of the first axial section, and a receiving element may be arranged on at least one of the first axial section and the third axial section.

The invention relates to a method for the material-removing processing of an adjustable camshaft which has a shaft body, wherein at least a first component of the camshaft can move axially and/or in the circumferential direction with respect to the shaft body, wherein a gap which permits the movement is provided between the shaft body and the first component, and wherein in order to protect the first moveable component during the material-removing processing a protection apparatus which has at least one fluid duct is placed on the shaft body and fluid is applied to it. According to the invention, the protection apparatus is arranged laterally with respect to the first moveable component in such a way that at least some of the fluid is directed laterally onto the first component and into an intermediate space between the protection apparatus and the first component, and wherein the first component is exposed in the radial direction. The subject-matter of the invention is also an arrangement for carrying out the method.

A camshaft contains a support tube, on which components including at least one cam are arranged at predetermined locations. The support tube extends at least partially through a hole in the components, and wherein a press fit is produced between the support tube and the components by hydroforming. Accordingly, at least one locally formed material formation is provided between the support tube and the hole. Via the material formation, the component is retained at the location in a desired orientation relative to the support tube in such a way that the support tube having the mounted components can be fed for hydroforming.

An apparatus for assembling a composite arrangement including a plurality of functional elements each having an aperture for a shaft, in a predetermined angular position on the shaft, may include a plurality of retaining devices each intended for accommodating a functional element. The retaining devices may be arranged vertically one above another such that the apertures of the functional elements may lie on a vertical line. The apparatus may also include a vertically movable guide slide for the shaft so that a joining of the shaft with the functional elements may take place in a vertical direction. The apparatus may also include a heating device by which at least two functional elements may be heated simultaneously. The apparatus may further include a gripping device by which at least two functional elements which are to be joined may be removed together from the heating device and introduced into the retaining devices.

Disclosed herein is a method for assembling a module for a motor vehicle engine, which module comprises at least one supporting structure with bearing seats and at least one camshaft which is mounted rotatably in the bearing seats, the camshaft being constructed during the assembly of the module from a support shaft which is configured at least in sections as a hollow shaft and components which are to be connected to the support shaft at predefined joining positions. The method includes providing a supporting structure having bearing seats, positioning components to be affixed to a support shaft in a preliminary position with respect to the bearing seats, pushing the support shaft through the bearing seats and through-openings of the components, enlarging portions of the outer diameter of the support shaft at defined joining positions thereof, and axially moving the components on the support shaft onto the joining positions.

A camshaft phaser, including: a drive sprocket; a phaser section including a rotor with a first radially aligned channels, first axially aligned channels connected to the first radially aligned channels, and chambers formed by the rotor and a stator; and a rotor nose separately formed from the phaser section and non-rotatably connected to the phaser section, extending past a front side of the phaser section in an axial direction, and including second radially aligned channels and second axially aligned channels connected to the second radially aligned channels and the first axially aligned channels. The second radially aligned channels are arranged to receive fluid for the plurality of chambers to phase the phaser. The first radially aligned channels and the first and second axially aligned channels form respective flow paths for the fluid from the second radially aligned channels to the plurality of chambers.

A method for producing a camshaft module and a camshaft module are provided. The camshaft module includes a camshaft and a bearing frame having bearing devices with cut-outs. The camshaft includes a shaft and cams having cut-outs. The shaft has at least two different outside diameters. At least some of the cams and/or some of the bearing devices have cut-outs of differing diameters. The bearing frame is supported during shaft insertion to be movable along a movement axis during production of the camshaft module and to be substantially rigid along an insertion direction of the shaft. The shaft is inserted into the bearing frame in the insertion direction in such a way that interference fit is obtained in each case at least between the shaft and at least some of the cams. A predefined target distance between two elements such as a gear located outside of the bearing frame and a cam or bearing device located inside of the bearing frame adjacent to the element outside of the bearing frame may be obtained by partially inserting the shaft, determining a distance between the two elements, and applying an insertion force to the shaft based on the determined distance to advance the shaft to result in setting the distance between the two elements to the target distance.

A method may include thermally joining at least one of a non-round functional component to a shaft and a cam to a camshaft, elastically compressing the functional component during introduction of a round through-opening, and creating a through-opening which is not round when the functional component is unstressed and at least minimizes an asymmetrical deformation of the shaft after the thermal joining of the functional component to the shaft.

An exemplary camshaft for a high pressure common rail oil pump and a manufacturing method thereof is provided. The method achieves interference assembly between the mandrel and cam piece, and satisfies anti-rotating torque of the cam piece relative to the mandrel while ensuring the surface hardness of the cam piece. The camshaft includes a mandrel and a cam piece arranged on the mandrel. The anti-rotating torque of the cam piece relative to the mandrel is at least 500 NM after the cam piece and the mandrel are connected by interference fit by hot charge practice. Surface hardness of the cam piece 1 is at least HRC58. The method includes performing interference assembly of the cam piece and the mandrel while performing quenching heat treatment on the cam piece, then quickly cooling the cam piece equipped with the mandrel at the cooling stage during the quenching heat treatment.

The present disclosure relates to a lightweight camshaft and method for producing the same. The method includes the steps of slidably arranging a plurality of support elements onto a support tube, winding the support tube and support elements with at least one fiber layer, impregnating the at least one fiber layer with a matrix material so as to form a fiber composite, curing the fiber composite, and slidably arranging each of a plurality of functional elements, including at least a plurality of cam elements, onto a corresponding support element, such that the support elements are fixedly seated at least partially inside a passage defined through the functional elements.