A slide cam system includes a camshaft comprising a carrier shaft with slide cam elements that each comprise a slotted switching member having a switching groove. The slide cam elements are displaceable axially relative to the carrier shaft by an actuator pin. A displacement element is arranged parallel with a longitudinal axis of the carrier shaft, and the displacement element is axially displaceable in a direction of the longitudinal axis. The displacement element has a first coupling pin arranged in a region of the first slide cam element and a second coupling pin arranged in a region of the second slide cam element. The coupling pins cooperate with a slotted switching member of the associated slide cam element such that as a result of the displacement element a movement initiated by the actuator pin of the first slide cam element can be transmitted to the second slide cam element.
The present invention relates to a radial piston pump, comprising a pump shaft (1) with an eccentric (11), and comprising at least one piston-working chamber combination (2), wherein the piston-working chamber combination (2) comprises a working chamber (21) and a piston (22), wherein the radial piston pump comprises at least two piston-working chamber combinations (2, 2a, 2b,…) which extend radially from the pump shaft (1), wherein each working chamber (21) is equipped with an outlet valve (24), wherein the outlet valve (24) comprises a valve opening (241) and a valve tongue (242), wherein the valve opening is selectively closed and opened up by the valve tongue, wherein the radial piston pump is equipped with a ring-shaped valve tongue arrangement (4).
F04B 1/0465 - Distribution members, e.g. valves plate-like
F04B 1/053 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with actuating or actuated elements at the inner ends of the cylinders
F04B 27/04 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
F04B 27/053 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement with an actuating element at the inner ends of the cylinders
F04B 39/10 - Adaptation or arrangement of distribution members
The present invention relates to a piston (1) for a piston pump, in particular a piston compressor, comprising a spring plate valve (6) having a valve flap (61), characterized in that the piston is equipped with a limiter (7) which is designed to limit the bending path of the valve flap. The invention also relates to a piston pimp, in particular a piston compressor, comprising a working chamber and a piston, characterized by a piston according to the invention.
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
F04B 39/10 - Adaptation or arrangement of distribution members
A camshaft for an engine and a method of assembling such a camshaft, wherein the camshaft has a base shaft and an external toothing which extends at least in certain portions axially along the base shaft A hub has an internal toothing which correlates with the external toothing of the base shaft such that the hub is connected rotationally conjointly and axially non-displaceably to the base shaft. The external toothing has at least one form-fit subregion, which extends axially at least in certain portions along the base shaft, or one force-fit subregion in order for the hub to be arranged at least in a form-fitting or force-fitting manner, and wherein at least the form-fit subregion or the force-fit subregion is adjoined by at least one alignment region which extends at least in certain portions axially along the base shaft and which serves for the angular alignment of the hub.
The present invention relates to a shift gate (10) for a sliding cam system, which shift gate has at least two shift grooves (11) for engagement of at least one actuator pin (20), the two shift grooves (11) extending against a direction of rotation and transitioning from a first portion (12), in particular an inlet portion of the actuator pin (20), into a second portion (13), in particular an outlet portion of the actuator pin (20). The two shift grooves (11) intersect one another in an intersection region (14) between the two portions (12, 13), and in the intersection region (14) the two shift grooves (11) each have a maximum axial shift stroke (SH) which is greater than half an axial total shift stroke (GSH), in particular a movement path, of the shift gate (10). The invention further relates to a sliding cam system and to a camshaft.
A camshaft and method of producing a camshaft for an internal combustion engine. The camshaft includes a base shaft and an external toothing extending at least in certain portions axially along the base shaft. The camshaft includes a hub with an internal toothing which correlates with the external toothing of the base shaft such that the hub is connected rotationally conjointly and axially non-displaceably to the base shaft. The external toothing has at least one form-fit subregion that extends axially at least in certain portions along the base shaft, or one force-fit subregion in order for the hub to be arranged at least in a form-fitting or force-fitting manner. At least the form-fit subregion or the force-fit subregion is adjoined by at least one alignment region which extends at least in certain portions axially along the base shaft and which serves for the angular alignment of the hub.
The present invention relates to a camshaft comprising a supporting shaft (1) and at least one sliding cam (2), wherein: the sliding cam (2) comprises a first cam (21) with a first cam contour and at least one second cam (22) with a second cam contour; the camshaft is equipped with a displacement- and torque-transmitting device which is designed such that the sliding cam (2) is connected to the supporting shaft (1) in an axially displaceable but rotationally fixed manner; the displacement- and torque-transmitting device comprises at least one recess (11) on the supporting shaft side, a recess (25) on the sliding cam side, and a bearing body (3); the recess (11) on the supporting shaft side comprises an entry section (111), an exit section (112), and a holding section (113) situated between the entry section and the exit section; the supporting shaft is equipped with a first circlip (5) and a second circlip (5a); the first circlip (5) forms a first stop, and the second circlip (5a) forms a second stop for a bearing body (3) held in the holding section (113).
The invention relates to a slide cam system for an internal combustion engine having at least one camshaft (10) comprising a carrier shaft (11) having at least two slide cam elements (12a, 12b), each comprising a shifting gate (13) having at least one switch groove (14), wherein the slide cam elements (12a, 12b) are axially movable relative to the carrier shaft (11) by means of at least one actuator pin (15) and at least one adjustment element (16) is arranged parallel to a longitudinal axis of the carrier shaft (11), wherein the adjustment element (16) is axially movable in the direction of the longitudinal axis of the carrier shaft (11). The slide cam system is characterized in that the adjustment element (16) has at least two coupling pins (17a, 17b), wherein a first coupling pin (17a) is arranged in the region of the first slide cam element (12a) and a second coupling pin (17b) is arranged in the region of the second slide cam element (12b) and each coupling pin (17a, 17b) interacts with a shifting gate (13) of the relevant associated slide cam element (12a, 12b) such that a movement of the first slide cam element (12a), initiated by the actuator pin (15), is transmittable to the second slide cam element (12b) by the adjustment element (16).
A method for permanently fastening a cam on a cam carrier may involve positioning the cam on the cam carrier in a predefined axial and angular position. By way of the positioning, an end face of the cam carrier is aligned with an end face of the cam. The method may also involve positioning a cam segment formed by the cam carrier and the cam in an assembly device. The cam carrier may then be deformed such that the cam is secured at least in a form-fitting or force-fitting manner against movement in an axial direction on the cam carrier. A deformation tool of the assembly device may be advanced in an axial direction onto the end face of the cam carrier, and the cam carrier may be deformed such that material of the cam carrier is forced outward in a radial direction against the cam.
F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
B21D 39/06 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders of tubes in openings, e.g. rolling-in
B21D 39/20 - Tube expanders with mandrels, e.g. expandable
10.
CAMSHAFT, MOTOR VEHICLE AND METHOD FOR ASSEMBLING A CAMSHAFT
The present invention relates to a camshaft (10) with a basic shaft (11) and with at least one sliding cam element (12), which is arranged in axially displaceable fashion on the basic shaft (11), and with at least one locking device (13), wherein the basic shaft (11) and the sliding cam element (12) each have an associated through opening (14, 15) through which the locking device (13) is introduced into the basic shaft (11), wherein the through opening (14) of the basic shaft (11) and the through opening (15) of the sliding cam element (12) are rotated relative to one another, with the result that the locking device (13) is radially secured, in particular held, in the basic shaft (11) by way of the sliding cam element (12). Furthermore, the invention relates to a camshaft and to an assembly method.
The invention relates to a camshaft (10) having a main shaft (11) and at least one sliding cam element (12) which is axially displaceably arranged on the main shaft (11), and at least one transmission element (13), which connects the sliding cam element (12) co-rotationally to the main shaft (11) to transmit a torque, wherein the main shaft (11) has at least one recess (14) and the sliding cam element (12) comprises at least one mounting opening (15), through which the transmission element (13) can be inserted into the recess (14) of the main shaft (11). The invention further relates to a motor vehicle and an assembly method.
A device and a method can be utilized to measure concentricity of an internal toothing of a component. Such a device may include a determination segment, which can determine a concentricity deviation, that includes a spindle unit comprising a tapping spindle with a gauge gear wheel arranged thereon and intended for tapping the concentricity of the internal toothing, and an output spindle for transmitting the tapped concentricity from the tapping spindle to a measuring unit. The output spindle may be arranged directly or indirectly on the tapping spindle. A spindle holder may hold and position the tapping spindle, the output spindle, or the spindle unit. An adjusting element may position the gauge gear wheel, and the measuring unit may compare the tapped concentricity with reference values.
A slide element for displacement of a cam segment in an axial direction along a camshaft may include a slide sleeve, which has a longitudinal toothing formed at least sectionally along an inner wall of the slide sleeve and has a latching section formed on the inner wall and serving for interaction with a latching means. The latching section comprises a latching means receiving part, which comprises at least two latching grooves formed adjacently in an axial direction and at least one latching elevation formed between the latching grooves of the latching means receiving part and directed inward. The latching elevation may be partially hardened exclusively in a latching means transfer region.
The invention relates to a valve train system for an internal combustion engine, comprising at least one cam follower (20) and a camshaft (30), which comprises a hollow outer shaft (31) and an inner shaft (32). The inner shaft (32) can be rotated relative to the outer shaft (31). The camshaft (30) comprises at least one multi-part cam element (33), which has at least one first partial cam (34), which is connected to the outer shaft (31) for conjoint rotation, and at least one second partial cam (36), which is rotatbly arranged on the outer shaft (31) and is connected to the inner shaft (32) for conjoint rotation. The partial cams (34, 36) have a different cam contour (39). After a first valve lift (41a) of the valve, a second valve lift (41b) of the valve occurs. The partial cams (34, 36) can be phase-shifted relative to each other in order to variably adjust an opening time point (42) of the second valve lift (41b). The invention also relates to a method for controlling a valve train of an internal combustion engine.
The present invention relates to a camshaft, comprising a shaft (1) with a longitudinal axis (L) and at least one sliding cam pack (2), wherein the sliding cam pack (2) is arranged on the shaft (1) fixedly so as to rotate with it but in an axially displaceable manner, wherein a means (3) for anti-rotation protection is arranged between the shaft (1) and the sliding cam pack (2), wherein the means (3) for anti-rotation protection comprises a cut-out (33) in the sliding cam pack (2), which cut-out (33) faces the shaft (1), a flat point (31) in the shaft (1), which flat point (31) faces the sliding cam pack, and an intermediate element (32) which is arranged between the flat point (31) and the cut-out (33), wherein - the flat point (31) has a planar surface (311) which faces the intermediate element (32), and the intermediate element (32) has a planar first surface (321) which faces the flat point (31), wherein - the cut-out (33) has a planar bottom surface (331) which faces the intermediate element (32), and the intermediate element (32) has a planar second surface (322) which faces the cut-out (33), wherein - the surface (311), the first surface (321), the second surface (322) and the bottom surface (331) are arranged in a plane-parallel manner with respect to one another, and to a production method for the camshaft according to the invention.
Method for mounting at least one sealing ring on a camshaft in a bearing line of an internal combustion engine, and camshaft having at least one sealing ring mounted in such a way
A method for mounting a camshaft in a bearing line of a cylinder head cover of an internal combustion engine may involve mounting a sealing ring in a groove extending radially circumferentially on an outer diameter of the camshaft. The sealing ring may be at least partly formed of an elastically deformable polymer such as polytetrafluoroethylene (PTFE). The method may further involve sliding a calibrating tool having a rotationally symmetrical opening onto the camshaft or sliding the camshaft into the calibrating tool. A smallest inside diameter of the rotationally symmetrical opening may be greater than an outside diameter of the camshaft in a region of the groove but less than an outside diameter of the sealing ring. Consequently, the sealing ring is pressed into the groove and is frictionally and interlockingly held in the groove.
B25B 27/00 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
An assembly aid configured to fix the rotational position of rotatably mounted shafts. The assembly aid has at least two parallel mandrels which are connected to one another by way of a bridge, each mandrel being assigned a positioning element which is arranged at least in sections eccentrically with respect to the respective mandrel.
F16H 7/24 - Equipment for mounting belts, ropes, or chains
B25B 27/00 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
A system including a camshaft and a camshaft sleeve. The camshaft sleeve has a sleeve-shaped main body for receiving an end region of the cam-shaft. The main body includes a joining region, a bearing region and a seat region. The main body and the camshaft are configured in such a way that, in the mounted state, the cam-shaft is joined in the joining region to the camshaft sleeve, the system having, in the bearing region, a clearance between the camshaft and the camshaft sleeve, and the camshaft and the camshaft sleeve are connected to one another in the seat region via a positively locking means and/or a frictionally lock, in particular a toothing system.
F16D 1/104 - Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting only by friction
F16D 1/108 - Quick-acting couplings in which the parts are connected by simply bringing them together axially having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling
A sliding module having a sliding sleeve and at least one cam segment having at least one cam. The sliding sleeve has a positioning section for positioning the cam segment fixedly against rotation and displacement. The positioning section includes a surface structure on the outer circumferential face of the sliding sleeve for producing a press-fit connection between the cam segment and the sliding sleeve. A stop region is provided configured to limit an axial movement of the cam segment.
A method may be employed to produce a cylinder head cover module that is positionable on a cylinder head of an internal combustion engine. The cylinder head cover module may include a cover body and a camshaft arranged in the cover body. The cover body may include an opening, and a bearing element may be press-fit into the opening. The camshaft may be rotatably mounted in the bearing element, and the bearing element may seal off the opening of the cover body from the exterior. The method may involve cooling a support shaft and heating components and the cover body before introducing the support shaft into the cover body, where the support shaft is led through passage opening in the components that have been heated.
An assembled rotor shaft of asymmetrical design may comprise two rotor shaft components, a first rotor shaft component configured as a shaft segment with a tube section and a flange section, and a second rotor shaft component configured as a flange element. The tube section may include a tube outer surface with a profiling. A rotor of an electric machine, which includes the assembled rotor shaft, may further include a laminated core and a pressure disk disposed in the tube section. The laminated core can include laminated core disks, each of which has a structuring that corresponds to the profiling of the rotor shaft. The profiling and the structuring of the laminated core disks may form a positively locking connection.
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
22.
ASSEMBLED CAMSHAFT AND METHOD FOR PRODUCING AN ASSEMBLED CAMSHAFT
The invention relates to an assembled camshaft (1) for an internal combustion engine, wherein the camshaft (1) comprises a main shaft (2) and an outer toothing (3) extending axially along the main shaft (2) at least in sections, as well as at least one hub (10) having an inner toothing (8) which corresponds with the outer toothing (3) of the main shaft (2) in such a way that the hub (10) is connected to the main shaft (2) in a rotationally and axially fixed manner, wherein the outer toothing (3) has at least one interlocking sub-region (5) or force-locking sub-region (6) extending axially along the main shaft (2) at least in sections, in order to at least interlockingly or force-lockingly arrange the hub (10), and wherein at least one aligning region (7) extending axially along the main shaft (2) at least in sections is connected at least to the interlocking sub-region (5) or force-locking sub-region (6) for angular alignment of the hub (10). The invention also relates to a method for producing an assembled camshaft (1) of this type.
The invention relates to an assembled camshaft (1) for an internal combustion engine, wherein the camshaft (1) comprises a main shaft (2) and an outer toothing (3) extending axially along the main shaft (2) at least in sections, as well as at least one hub (10) having an inner toothing (8) which corresponds with the outer toothing (3) of the main shaft (2) in such a way that the hub (10) is connected to the main shaft (2) in a rotationally and axially fixed manner, wherein the outer toothing (3) has at least one interlocking sub-region (5) or force-locking sub-region (6) extending axially along the main shaft (2) at least in sections, in order to at least interlockingly or force-lockingly arrange the hub (10), and wherein at least one aligning region (7) extending axially along the main shaft (2) at least in sections is connected at least to the interlocking sub-region (5) or force-locking sub-region (6) for angular alignment of the hub (10). The invention also relates to a method for producing an assembled camshaft (1) of this type.
A method for producing a constructed camshaft of an internal combustion engine may be used in connection with a camshaft having a cam, a shaft, and an anti-friction bearing. The method may involve machining the cam, machining the shaft to produce a setting region for arranging the cam, heating the cam and the anti-friction bearing, pushing the cam onto the shaft into a preliminary position and pushing the anti-friction bearing onto the shaft into a bearing position, equalizing a temperature between the shaft, the cam, and the anti-friction bearing by cooling at least the cam, and setting the cam onto an end position by way of pushing the cam onto the setting region.
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
The present invention relates to a sliding cam element (20) comprising a carrier tube (10) and at least one cam (21), wherein the cam (21) is connected to the carrier tube (10) and the carrier tube (10) has at least one shifting gate (15), wherein the shifting gate (15) is designed as a plastically deformed tube section (14) of the carrier tube (10) that extends radially outwards. The invention further relates to a method for producing a sliding cam element in which a carrier tube (10) is formed in at least one region of the carrier tube (10) by means of at least one hot-forming step, semi-hot-forming step or cold-forming step, wherein a tube section (14) of the carrier tube (10) is plastically deformed to form a shifting gate (15).
A device for separating liquid from a volume flow of a gas-liquid mixture may include a separating element and a deflection arrangement for deflecting the volume flow in a direction of the separating element to precipitate liquid on the separating element and thereby separate the liquid. The deflection arrangement may comprise a flow channel that extends axially away from a volume flow inlet and comprises an aperture area that extends axially on the flow channel. The aperture area may be at least partly covered by a covering means that is movable relative to the aperture area. The covering means may be movable to different extents at two axially-spaced locations to influence a magnitude of a part volume flow of the deflected volume flow flowing out of the flow channel through the aperture area at one axial location differently than at another axial location.
B01D 45/16 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by the winding course of the gas stream
B01D 45/06 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
B01D 45/08 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
27.
Sliding cam module with a bearing element and a camshaft with a sliding cam module, as well as a cover module
The present invention relates to a sliding cam module for a camshaft, which comprises at least one sliding cam with at least one cam segment, comprising at least two cams with cam tracks that are different to one another as well as a closed bearing element, which is arranged on the sliding cam in a rotatable and axially non-displaceable manner for mounting the sliding cam, wherein the bearing element comprises a recipient area to hold at least one section of a locking device to lock the sliding cam in an axial position. Furthermore, the invention relates to a camshaft with at least one corresponding sliding cam module as well as a shaft, on which the sliding cam module is arranged in a rotationally fixed manner and can be moved in an axial direction along a longitudinal axis of the shaft and a cover module, which comprises a cylinder-head cover as well as a closed bearing element, which comprises a recipient area to hold at least one section of a locking device to lock the sliding cam in an axial position.
A rotor segment of an electric machine may include a rotor shaft and a laminated core, which is arranged on the rotor shaft in such a way that a gap dimensioned sufficiently large in the radial direction for the passage of a cooling medium is produced between an outer surface of a hollow cylinder shell and an inner surface of the laminated core. The rotor segment may further include two pressure elements that are held on the rotor shaft in a stationary manner such that the pressure elements axially clamp the laminated core. Further, at least one of the pressure elements is designed as a holding segment allowing cooling medium to pass through.
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
29.
DEVICE AND METHOD FOR MEASURING THE TRUE RUNNING OF AN INTERNAL TOOTH SET OF A SHAFT
The invention relates to a device and to a method for measuring the true running of an internal tooth set of a component, in particular a shaft, wherein the device has at least one determination settlement for determining a true running deviation, comprising a spindle unit comprising a tapping spindle having a gauge gear wheel arranged at a first end of the tapping spindle for tapping off the true running of the internal tooth set of the component, and an output spindle for transmitting the true running that is tapped off from the tapping spindle to a measuring unit, wherein the output spindle is arranged indirectly or directly on a second end of the tapping spindle, which is opposite the first end of the tapping spindle, and a spindle holder, at least for holding and positioning the tapping spindle or the output spindle, advantageously the spindle unit, an adjusting element at least for positioning at least the gauge gear wheel connected to the tapping spindle, and the measuring unit for comparing the true running tapped off with reference values.
G01B 21/20 - Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring contours or curvatures, e.g. determining profile
G01B 5/00 - Measuring arrangements characterised by the use of mechanical techniques
G01B 5/16 - Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures between a succession of regularly spaced objects or regularly spaced apertures
G01B 5/20 - Measuring arrangements characterised by the use of mechanical techniques for measuring contours or curvatures
G01B 5/24 - Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapersMeasuring arrangements characterised by the use of mechanical techniques for testing the alignment of axes
G01B 7/28 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring contours or curvatures
The present invention relates to a method for producing an adjustable camshaft comprising a tubular main shaft and at least one fixed element arranged on the main shaft for conjoint rotation and conjoint movement and an adjusting element arranged on the main shaft at least rotatably about or movably along a longitudinal axis of the main shaft, wherein the method comprises at least the following steps: - producing at least one expansion of the material in a placement region and in a prepositioning region on the outer surface of the main shaft - arranging the fixed element on the placement region, - arranging the adjusting element on at least one portion of the prepositioning region, - working the fixed element, - repositioning the adjusting element to an end position region formed axially adjacent to the prepositioning region.
The present invention relates to a sliding element (1) for displacing at least one cam segment (11, 12) in an axial direction along a shaft of a camshaft, and to the camshaft having a corresponding sliding element (1), wherein the sliding element (1) has at least one sliding sleeve (2) having a longitudinal toothing formation (3), which is formed at least in part along an inner wall of the sliding sleeve (2), and having a latching portion (5), which is formed on the inner wall (4) and is intended for interacting with a latching means, wherein the latching portion (5) comprises a latching-means mount (6) having at least two axially adjacent latching grooves (6.1, 6.2) and at least one inwardly directed latching elevation (7), which is formed between the latching grooves (6.1, 6.2) of the latching-means mount (6), wherein the latching elevation (7) is partially hardened exclusively in a latching-means transfer region (8).
The invention relates to a component (10) for installation on or in a hollow shaft (11), comprising a base element (12) and a connecting element (13) which is connected or connectable to the base element (12) in a positively locking manner, wherein the connecting element (13) is adapted for frictional connection with an inner wall (14) of the hollow shaft (11). The invention further relates to a hollow shaft (11) and to a method for producing a hollow shaft (11).
The invention relates to a hollow shaft comprising a fluid separation system (11), a gas channel (15) having a gas inlet for the entry of raw gas and a gas outlet for the discharge of purified gas, and a conveying device (12) for conveying a fluid separated from a gas, wherein the conveying device (12) is connected to an inner wall (13) of the hollow shaft (10) in a rotationally fixed manner and comprises a helical guide geometry (14) for conveying the fluid in the longitudinal direction of the hollow shaft (10). The invention further relates to a method for separating a fluid from a gas stream.
The invention relates to a conveyor and compressor element (2) for use in a rotatable hollow shaft (4) and for conveying a fluid guided on an inner wall of the hollow shaft (4) in a conveying direction. The aim of the invention is to achieve lower installation space requirement and better conveying of the fluid. This aim is achieved in that the conveyor and compressor element (2) has an axial conveyor and compressor device (8) for the fluid having a first flow channel (10) for a purified gas, the axial conveyor and compressor device (8) being formed radially around the first flow channel (10), and/or a radial conveyor and compressor device (14) for the fluid having a second flow channel (36) for a gas, the radial conveyor and compressor device being formed radially around the second flow channel (36). The invention further relates to a hollow shaft, to a combustion engine, and to a method for purifying blowby gases.
A method for positioning a cam element on a shaft segment of a camshaft with an assembly aid element may comprise arranging the shaft segment relative to a first tool such that a first distal shaft segment end of the shaft segment lies flush against a surface of the tool that is directed towards the shaft segment; arranging the cam element on the shaft segment in a pre-position; arranging a first distal end of the assembly aid element to contact the surface of the first tool that is directed towards the shaft segment such that the assembly aid element forms a defined distance to the first tool along a shaft-segment longitudinal axis; and moving a second tool at least in sections along the longitudinal axis until the second tool contacts a second distal end of the assembly aid element, and pushing the cam element by means of the second tool to a final position.
F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
B23P 19/04 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
An assembled hollow rotor shaft for a rotor, which rotates about a longitudinal axis, of an electric machine, may include a cylinder jacket that surrounds a shaft cavity, and end flanges disposed on both sides on the cylinder jacket. A shaft journal is disposed on each of the end flanges. An inlet is provided in the shaft journal of one of the end flanges via which a cooling medium can be conducted into the shaft cavity and onto an inner surface of the cylinder jacket. A cooling-medium distribution element within the shaft cavity may be formed symmetrically perpendicularly to the longitudinal axis, may receive the cooling medium, which enters via the inlet, via a receiving region, may guide the cooling medium via a removal region in a direction of the inner surface of the cylinder jacket, and may discharge the cooling medium onto the inner surface via a discharging region.
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
H02K 9/00 - Arrangements for cooling or ventilating
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
The invention relates to a centrifugal oil separator for mounting on a spur gear (20) of a hollow shaft (30), comprising a disk-shaped main body (10) and conducting geometries (12) for forming at least one fluid channel (11), which extends in the radial direction of the main body (10) at least in some sections and leads into a central cavity (15). A first longitudinal side of the fluid channel (11) is delimited by the main body (10). On a second longitudinal side, which extends opposite the first longitudinal side, the fluid channel (11) is open. The invention further relates to a hollow shaft (30) and to an internal combustion engine.
The invention relates to a cam follower roller for a positively controlled cam follower of the valve train of an internal combustion engine, having a running surface. The invention is characterized in that the running surface has a plurality of, in particular two, partial running surfaces (11, 12) for axially divided cams (13, 14) of an assembled camshaft, the partial running surfaces (11, 12) being separately rounded such that the running surface has a plurality of rounded sections.
The present invention relates to a camshaft for an internal combustion engine, wherein the camshaft has at least one shaft and at least one sliding piece with at least one cam segment, in which the shaft extends through a through-opening of the sliding piece and which is arranged on the shaft in a torsion-proof and axially displaceable manner, wherein a gap to which lubricant is to be applied is formed between the outer surface of the shaft and the inner surface of the passage opening of the sliding piece, wherein a lubricant supply duct extends at least in sections in the radial direction through a wall of the sliding piece or through a wall of the shaft and opens in the gap.
A device may be used to assemble a rotor segment of an electric machine. The rotor segment may include a rotor shaft, a laminated core joined to the rotor shaft, and two pressure elements that clamp the laminated core. A method for assembling the rotor segment may involve positioning the rotor shaft in the device and orienting the rotor shaft using an orienting means of the assembly device, positioning the laminated core and at least one of the first or second pressure elements within a clamping means of the device, orienting the laminated core by means of a positioning module of the clamping means, and moving the rotor shaft relative to the clamping means such that the laminated core is pushed onto the rotor shaft and the at least one of the first or second pressure elements is connected to the rotor shaft.
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
An adjustable camshaft for a valve train of an internal combustion engine may include an inner shaft that is rotatable in an outer shaft, a phase shifter by which the outer shaft and/or the inner shaft are/is adjustable in a phase position formed around an axis of rotation, and a bearing portion for bearing the camshaft, via which the phase shifter can be supplied with a pressurizing medium. The inner shaft may comprise an end on which a screw flange is arranged, and a rotor of the phase shifter may be connected to the screw flange. A free end of the inner shaft comprises a duct that coincides with the axis of rotation for at least partially supplying the phase shifter with a pressurizing medium. The duct may extend at least into the bearing portion.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
The present invention relates to a method for creating a shaft-hub connection (20) and to a shaft-hub connection, comprising a shaft (1) having a round or non-round outer diameter, wherein the method comprises at least the following steps: • a) arranging the shaft (1) in a machining system (50) to machine an exterior surface (6) of the shaft (1) at least in a seat region (4), • b) generating at least one material expansion extending at least in sections in the circumferential direction and in the axial direction in the seat region of the shaft, wherein the material expansion (5) stays the same or runs conically along the shaft longitudinal axis in the axial direction, • c) connecting the hub (10) and shaft (1) such that in the seat region (4) a press connection is created between the shaft (1) and the hub (10). The invention also relates to a machining system (50) for machining an exterior surface (6) of the shaft at least in a seat region (4) to create the shaft-hub connection (20).
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
B21H 7/14 - Making articles not provided for in groups , e.g. agricultural tools, dinner forks, knives, spoons knurled articles
B24B 39/04 - Burnishing machines or devices, i.e. requiring pressure members for compacting the surface zoneAccessories therefor designed for working external surfaces of revolution
B23P 9/02 - Treating or finishing by applying pressure, e.g. knurling
43.
LAMINATION STACK DISC HAVING A PLURALITY OF LAMINATION STACK DISC SEGMENTS AND ROTOR
The invention relates to a lamination stack disc for a rotor, and a rotor for an electric machine, wherein the lamination stack disc comprises a plurality of lamination stack disc segments, wherein each lamination stack disc segment has a connection element at a first distal end and a counter connection element at a second distal end opposite the first distal end for interlockingly connecting to the connection element of a further lamination stack disc segment in order to create the lamination stack disc, and wherein a magnet receiving recess is formed on the end sides of the two distal ends of each lamination stack disc segment in order to form a magnet receiving slot for receiving a magnet when arranging the individual lamination stack disc segments in relation to one another.
The present invention relates to a sliding piece and a sliding system for axially displacing at least one cam segment on a shaft of a camshaft of an internal combustion engine and a pump cam segment sliding piece for axially displacing at least one pump cam segment on a shaft of a camshaft of an internal combustion engine. The sliding piece comprises at least one cam segment having at least two cams with cam tracks of different configurations and a pump cam segment which is operatively connected to the cam segment and has at least two pump cams with pump cam tracks of different configurations. The pump cam segment sliding piece comprises at least one pump cam segment having at least two pump cams with differently configured pump cam tracks. The sliding system comprises at least one cam segment sliding piece having a cam segment with at least two cams with differently configured cam tracks and a pump cam segment sliding piece having a pump cam segment with at least two pump cams with differently configured pump cam tracks. The invention further relates to a camshaft having a shaft and a sliding piece or a pump cam segment sliding piece or a sliding system according to the aforementioned type.
A rotor hollow shaft for a rotor of an electric machine may include a cylinder barrel that is closed off on both sides by end flanges. On each side, a shaft journal may be positioned or formed on the end flanges. At least one of the shaft journals may include an access bore that provides access to a shaft cavity surrounded by the cylinder barrel. A leadthrough element may be fitted into the access bore so as to impart a sealing action with respect to the shaft cavity. The leadthrough element may extend through the shaft cavity to the shaft journal on the other side of the cylinder barrel, where the leadthrough element may likewise be fitted so as to impart a sealing action with respect to the shaft cavity. The leadthrough element may permit the leadthrough of a liquid or gaseous medium.
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
A hollow rotor shaft for a rotor of an electrical machine may include a cylinder barrel closed off by face flanges on both sides. The cylinder barrel may enclose a shaft cavity. A shaft journal may be configured on each face flanges. An inlet may be disposed in one of the shaft journals by way of which a cooling fluid may pass into the shaft cavity and onto an inner surface of the cylinder barrel. A distribution element may be disposed in the shaft cavity. The distribution element may receive the cooling fluid that enters through the inlet, conduct the cooling fluid in a direction of the inner surface of the cylinder barrel by way of a rotation-symmetrical drainage surface, and give off the cooling fluid to the inner surface by way of a mouth region.
H02K 9/10 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
H02K 9/193 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling mediumArrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with means for preventing leakage of the cooling medium
H02K 9/19 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
47.
METHOD FOR PRODUCING CAMS, CAMSHAFTS AND CAMSHAFT MODULES AND CAMS PRODUCED IN SUCH A WAY
The present invention relates to a method for producing cams (10) for camshafts, in which the following steps are carried out: a) providing at least one cam (10) made of electrically conductive material, in particular of metal, and then b) machining the cam (10) by electrochemical machining, wherein the cam (10) forms the anode and a tool forms the cathode, an electrolyte is introduced between the cam and the tool, and an electric voltage is applied to the cam and the tool for removing cam material.
B23H 9/00 - Machining specially adapted for treating particular metal objects or for obtaining special effects or results on metal objects
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
B23H 3/00 - Electrochemical machining, i.e. removing metal by passing current between an electrode and a workpiece in the presence of an electrolyte
48.
METHOD FOR MOUNTING AT LEAST ONE SEALING RING ON A CAMSHAFT IN A BEARING LINE OF AN INTERNAL COMBUSTION ENGINE, AND CAMSHAFT HAVING AT LEAST ONE SEALING RING MOUNTED IN SUCH A WAY
The invention relates to a method for mounting a camshaft (2) in a bearing line of a cylinder head cover of an internal combustion engine, wherein at least the following steps are performed: mounting at least one sealing ring (1) in a groove (3) extending radially circumferentially on the outer diameter of the camshaft (2), wherein the sealing ring (1) is at least partly formed of an elastically deformable polymer, in particular a polytetrafluoroethylene (PTFE), sliding a calibrating tool (4) having a rotationally symmetrical opening or sliding the camshaft (2) into a calibrating tool (4) having a rotationally symmetrical opening, the smallest inside diameter of which is greater than the outside diameter of the camshaft (2) in the region of the particular groove (3) and less than the outside diameter of the at least one sealing ring (1) slid onto the camshaft (2) in the region of the groove (3), in such a way that the at least one sealing ring (1) is pressed into the associated groove (3) and is frictionally and interlockingly held in the groove (3).
B25B 27/00 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
A hollow shaft arrangement may include a hollow shaft, such as a rotor shaft of an electric motor, for example, through which a fluid can pass for cooling purposes. Surface-enlarging cooling structures for transferring thermal energy from the hollow shaft to the fluid may be arranged in an inner space of the hollow shaft. The surface-enlarging cooling structures may be connected to the hollow shaft, but may be part of a cooling body that is formed separately from the hollow shaft. Further, the cooling body may include a sleeve-like main body from which the surface-enlarging cooling structures project radially inwardly, and the sleeve-like main body may include an axial gap that permits a circumference of the main body to be adjustable. In some cases an outer diameter of the cooling body is larger than an inner diameter of the bearing.
H02K 9/22 - Arrangements for cooling or ventilating by solid heat conducting material embedded in, or arranged in contact with, the stator or rotor, e.g. heat bridges
H02K 9/00 - Arrangements for cooling or ventilating
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 6/26 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
A camshaft module may include a module body in which at least one camshaft for controlling valves for a charge cycle of an internal combustion engine is accommodated. The camshaft may comprise a support shaft and sliding cam pieces that are accommodated on the support shaft so as to be displaceable in an axial direction of the support shaft. A support element may also be provided on which actuators for the axial displacement of the sliding cam pieces are accommodated. The support element may extend in the axial direction and therefore parallel to the support shaft. In some cases, a coefficient of thermal expansion of the support element substantially corresponds to a coefficient of thermal expansion of the support shaft.
The invention relates to a method for producing an assembled camshaft with a defined axial bearing clearance within a cylinder head cover, wherein the assembled camshaft has at least one shaft and an axial bearing ring. The method comprises at least the following steps: a) pre-positioning the at least one axial bearing ring in the cylinder head cover in such a way that the axial bearing ring is in contact with an impact surface of the cylinder head cover at one of its end surfaces; b) at least cooling the shaft or heating the cylinder head cover, in particular the axial bearing ring; c) arranging the shaft in the cylinder head cover in such a way that at least one section of the shaft extends through a through-opening of the axial bearing ring; d) at least heating the shaft or cooling the cylinder head cover, in particular the axial bearing ring in such a way that a press fit is created between the axial bearing ring and the shaft, and the axial bearing ring is moved in the axial expansion direction of the shaft. The invention also relates to a cover module having at least two assembled camshafts arranged in a cylinder head cover of the cover module.
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
The present invention relates to a laminated core, to a laminated core segment of a rotor, and to a rotor for an electrical machine. The rotor has at least one laminated core, which either is arranged on the rotor shaft or forms a rotor shaft. The laminated core has a plurality of laminated core sheets lined up one after the other in the axial direction, wherein each laminated core sheet has a through-opening for introducing a rotor shaft or a displacement means, wherein at least one displacement element is formed in a through-opening in at least one laminated core sheet, and wherein at least one receiving element, at least for receiving the displacement element or a displacement element of an axially adjacent laminated core sheet or a displacement element of an axially adjacent element, is formed in the through-opening in each laminated core sheet. The rotor also has two pressure plates, which each have a through-hole and between which the laminated core is arranged. The invention also relates to an electrical machine having the rotor and to a method for assembling the rotor.
The invention relates to an assembled rotor shaft with an asymmetrical design and to a rotor of an electric machine comprising the assembled rotor shaft which solely comprises two rotor shaft components. A first rotor shaft component is a shaft segment which has a tube section and a flange section, and a second rotor shaft component is a flange element, wherein the tube section has a tube outer surface with a profiling. The invention additionally relates to a method for producing the assembled rotor shaft and to a method for producing the rotor.
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 7/00 - Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
A cylinder head cover structure for at least one camshaft has at least one sliding cam. At least one groove-shaped contour is formed on the sliding cam, and the sliding cam can be moved along the longitudinal axis of the camshaft by means of a tappet that can be moved perpendicular to the longitudinal axis of the camshaft. The at least one tappet is arranged in a housing with a manipulator for the movement of the at least one tappet, and the manipulator is connected to supply lines via a connection, said supply lines being connected to the controller. A cylinder head cover is formed from or with a polymer. A guide element for the tappet(s), which is oriented in parallel to the longitudinal axis of the camshaft and arranged between the sliding cam and the cylinder head cover, is secured to bearing blocks, wherein at least one guide opening is formed in the guide element for each tappet, and, in the state in which they are connected to the cylinder head cover, the guide element and the housing are arranged in relation to one another in such a way that the housing is supported on the guide element by an end side.
The invention relates to a method for assembling a rotor shaft of an electric motor, wherein laminated cores formed from a magnetically soft material are held by circular ring elements on the rotor shaft between two pressure disks arranged on the rotor shaft. A surface structure deviating from a thread and having elevations and recesses is formed at least on a first or on a second pressure disk in the hollow cylindrical region on an inner shell surface or on an outer surface of the rotor shaft in a joining region and at least the first or the second pressure disk is pushed onto the rotor shaft coaxially to the rotation axis of the rotor shaft such that a plastic deformation occurs in the region of the formed elevations of the surface structure and a frictional and interlocking connection is created in the joining region between the rotor shaft and at least one of the two pressure disks.
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
56.
CYLINDER HEAD COVER MODULE AND METHOD FOR THE PRODUCTION THEREOF
The present invention relates to a cylinder head cover module (100) and to a method for producing such a cylinder head cover module (100) for arrangement on a cylinder head of an internal combustion engine, wherein the cylinder head cover module (100) comprises a cover body (110) and a camshaft (210) arranged therein, and wherein the cover body (110) has an opening (130), a bearing element (300) being pressed into the opening (130). According to the invention, the camshaft (210) is rotatably mounted in the bearing element (300), and the bearing element (300) seals off the opening (130) of the cover body (110) from the exterior.
F02B 67/04 - Engines characterised by the arrangement of auxiliary apparatus not being otherwise provided for, e.g. the apparatus having different functionsDriving auxiliary apparatus from engines, not otherwise provided for of mechanically-driven auxiliary apparatus
A camshaft may comprise a main shaft, on which at least two sliding cam pieces are accommodated in a rotationally fixed and axially displaceable manner, wherein the sliding cam pieces each comprise a carrier tube, on which are seated cam groups each comprising at least two cam tracks for valve-control purposes, as well as an adjustment element that can be brought into operative connection with an actuator for axial displacement of the two sliding cam pieces. A method for assembling such a camshaft may involve providing a module body with bearing bridges that receive the camshaft in a rotatable manner, inserting a first sliding cam piece into a first bearing bridge, connecting the first sliding cam piece to the adjustment element, inserting a second sliding cam piece into a second bearing bridge, and connecting the second sliding cam piece to the adjustment element with the aid of an axial adjustment distance of at least one of the sliding cam pieces in the bearing bridges.
The invention relates to an assembly aid for fixing the rotational position of rotatably mounted shafts. The invention is characterized in that the assembly aid has at least two parallel mandrels (6) which are connected to one another by a bridge (5), wherein a positioning element (8) which is arranged at least partially eccentrically relative to the respective mandrel (6) is associated with each mandrel (6).
B25B 27/00 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
F16H 7/24 - Equipment for mounting belts, ropes, or chains
B23P 19/00 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes
A method concerns producing a cam profile of a cam pack with at least two cam elements that can be adjusted relative to each other. The camshaft may comprise an outer shaft, a rotatable inner shaft, a fixed cam element connected to the outer shaft, and an adjustment cam element connected to the inner shaft. The method may comprise processing an adjustment cam contour by a continuous diameter reduction of a segment of the adjustment cam base circle, wherein the adjustment cam base circle is reduced to a diameter that is smaller than a fixed cam nominal circle diameter minus a doubled adjustment cam base circle tolerance. The method may comprise processing a fixed cam contour by reducing a fixed cam contour protrusion in a region between a transition point and a processing point. Upon reaching the transition point a tapping element for converting a revolving motion of the cam elements into a linear motion of the valves is transferred from the fixed cam element to the adjustment cam element.
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
B24B 19/12 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
60.
TOOTHED SHAFT, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING A FUNCTIONAL SHAFT
The invention relates to a toothed shaft (1), having a toothed section (1a), in which teeth (2a) are formed on the lateral surface of the toothed shaft (1), which extend parallel to the axis of rotation of the toothed shaft (1). The invention is characterized in that a mounting section (1b) having teeth (2b) adjoins the toothed section (1a), wherein the number and the radial position of the teeth (2b) in the mounting section (1b) correspond to the number and the radial position of the teeth (2a) in the toothed section (1a), and wherein at least one tooth thickness (db) of the teeth (2b) in the mounting section (2a) is greater than a tooth thickness (da) in the toothed section (1a), or at least one dedendum circle diameter (fb) of the teeth (2b) in the mounting section (1b) is greater than the dedendum circle diameter (fa) in the toothed section (1a), or at least one addendum circle diameter (kb) of the teeth (2b) in the mounting section (1b) is greater than the addendum circle diameter (ka) in the toothed section (1a).
The invention relates to a method for producing an assembled camshaft (1) of an internal combustion engine, in which the camshaft (1) comprises at least one cam (2, 3) and one shaft (9) and at least one roller bearing (4, 5), said method comprising the following steps: • a) machining the at least one cam (2, 3), • b) machining the shaft (9), wherein at least one setting region (7, 8) for arrangement of the at least one cam (2, 3) is produced, • c) heating the at least one cam (2, 3) and the roller bearing (4, 5), • d) pushing the at least one cam (2, 3) onto the shaft (9) into a preliminary position and pushing the roller bearing (4, 5) onto the shaft (9) into a storage position, • e) equalizing the temperature between the shaft (9) and the at least one cam (2, 3) or the roller bearing (4, 5) by at least cooling the cam (2, 3) or the roller bearing (4, 5), and • f) setting the at least one cam (2, 3) to a final position by pushing the cam (2, 3) onto the setting region (7, 8).
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
62.
SHAFT, IN PARTICULAR CAMSHAFT, HAVING A DEVICE FOR DETERMINING A ROTATIONAL SPEED AND A ROTATIONAL ANGLE OF THE SHAFT
The invention relates to a shaft (1), in particular a camshaft, having a device for determining a rotational speed and a rotational angle of the shaft (1), wherein the device is designed in such a way that the device has elevations that are consecutive in a circumferential direction (U) of the shaft (1), wherein, for individual association of rotational angles with respective individual elevations, extension lengths of the consecutive elevations or distances between the consecutive elevations continuously change in the circumferential direction (U).
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
G01P 3/481 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
The present invention relates to a sliding module which has a sliding sleeve and at least one cam segment having at least one cam, wherein the sliding sleeve has a positioning portion for positioning the cam segment such that it cannot rotate or be displaced, wherein the positioning portion comprises a surface structure on the outer lateral surface of the sliding sleeve for producing a press fit between the cam segment and the sliding sleeve and comprises a stop portion for limiting an axial movement of the cam segment.
The invention relates to a system consisting of a camshaft and a camshaft sleeve. The camshaft sleeve has a sleeve-shaped main part for receiving an end piece of a camshaft, and the main part comprises a joint region, a bearing region, and a seat region. The main part and the camshaft are designed such that the camshaft is joined to the camshaft sleeve in the joint region in the assembled state; the system has a free space between the camshaft and the camshaft sleeve in the bearing region; and the camshaft and the camshaft sleeve are connected together in the seat region via a positive- and friction-locking means, in particular a toothing.
A camshaft for a multiple-cylinder internal combustion engine may include a sliding element comprising at least two cam elements, as well as a splined shaft that extends in an axial direction and on which the sliding element is received. The sliding element may comprise an internal spline system that interacts with an external spline system of the splined shaft such that the sliding element is seated fixedly on the splined shaft so as to rotate with the splined shaft. The sliding element may be received on the splined shaft such that the sliding element can, at least initially, be displaced axially. For axially-fixing the sliding element to the splined shaft, the sliding element may include a positively locking connection that is configured in the axial direction and is produced by way of at least one calked connection between the sliding element and the splined shaft. It should be understood that many camshafts include more than one sliding element.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
A camshaft may include a shaft as well as a sliding element that is disposed on the shaft such that the sliding element is axially displaceable along a shaft axis. The shaft may comprise an external tooth for transmitting torque between the shaft and the sliding element. The external tooth may engage a mating tooth geometry formed in a passage of the sliding element. The sliding element on its axial end faces may comprise bearing collars that with the shaft form radial supporting bearings of the sliding element on the shaft. Further, the shaft may comprise cylindrical bearing portions for forming the radial supporting bearings, wherein the bearing portions can be configured with a diameter that is smaller than a diameter circumscribed by tips of the mating tooth geometry that protrude into the passage of the sliding element.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 13/00 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
A camshaft may include a shaft on which at least one sliding element is received in such a way as to be axially displaceable along a shaft axis. The shaft may comprise an external longitudinal spline structure that meshes with an internal spline structure of a passage in the sliding element such that the sliding element is arranged in a rotationally fixed manner on the shaft. The sliding element, on its axial end faces, may comprise guiding portions by way of which the sliding element is guided on the shaft to minimize an axial offset of the sliding element. Further, guiding sleeves against which the guiding portions of the sliding element are supported may be received on the shaft.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
A method for mounting a camshaft module may involve a module that includes a module cover in which a camshaft is accommodated. The camshaft may comprise a main shaft and a plurality of displacement elements with cam tracks formed thereon for valve-control purposes. The displacement elements may be arranged at predetermined positions in the module cover. The main shaft may be guided along a shaft axis through accommodating passages of the displacement elements. The method may involve arranging a first displacement element in the module cover, introducing the main shaft into the module cover and guiding the main shaft through the accommodating passage of the first displacement element, arranging a second displacement element in the module cover, rotating the main shaft about the shaft axis by an angular amount, and advancing and guiding the main shaft through the accommodating passage of the second displacement element. Further, the displacement elements are arranged in the model cover with an identical rotary orientation about the shaft axis.
The present invention relates to a support tube (1) of a camshaft (10) and to a corresponding camshaft, wherein the support tube (1) has at least one setting region (3.1, 3.2) for setting at least one component (20) and a free region (4.1, 4.2, 4.3) adjoining the setting region (3.1, 3.2), and also a tube wall (2) which varies in its thickness, wherein the tube wall (2) has a wall thickness (8) in the setting region (3.1, 3.2) which is thicker than the wall thickness (7) of the tube wall in the free region (4.1, 4.2, 4.3). The invention further relates to a method for producing this support tube (1), wherein a profiled strip material comprising a varying wall thickness is shaped to form the support tube.
The invention relates to a rotor segment of an electric machine, wherein the rotor segment has a rotor shaft, a laminated core, which is arranged on the rotor shaft in such a way that a gap dimensioned sufficiently large in the radial direction for the passage of a cooling medium is produced between an outer surface of the hollow cylinder shell and an inner surface of the laminated core, and two pressure elements, which are held on the rotor shaft in a stationary manner in such a way that the pressure elements axially clamp the laminated core, wherein at least one of the pressure elements is designed as a holding segment that allows cooling medium to pass through. The invention further relates to an electric machine having a corresponding rotor shaft segment.
H02K 1/32 - Rotating parts of the magnetic circuit with channels or ducts for flow of cooling medium
H02K 9/12 - Arrangements for cooling or ventilating by gaseous cooling medium flowing in closed circuit, a part of which is external to the machine casing wherein the cooling medium circulates freely within the casing
71.
Camshaft adjusting device for adjusting a position of at least one cam segment
A camshaft adjusting device of a drive, such as a motor vehicle drive, for example, for adjusting a phase position of a cam segment may include a camshaft and a phase shifter that is operatively connected to the camshaft. The camshaft may comprise a shaft segment including an inner shaft and an outer shaft at least partially surrounding the inner shaft. The camshaft adjusting device may further comprise a drive segment for driving the shaft segment and a cam segment that is connected in a form-fitting and/or force-fitting manner to the outer shaft. The phase shifter may comprise a rotor element and a stator element. A compensating element for compensating for part tolerances between the camshaft and the phase shifter can be disposed at least in sections between the rotor element and the drive segment.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
A camshaft may include a support shaft and a component with a passage opening that receives the support shaft. The support shaft may include fastening regions and positioning regions alternating in an axial direction. A diameter of the support shaft in the fastening regions may be greater than a diameter of the support shaft in the positioning regions. Furthermore, the passage opening of the component may include axially spaced fastening sections with positioning sections arranged between pairs of the fastening sections. A diameter of the passage opening in the fastening sections may be smaller than a diameter of the passage opening in the positioning sections. Further, the diameter of the support shaft in the positioning regions may be smaller than the diameter of the passage opening in the fastening sections, and the diameter of the support shaft in the fastening regions may be smaller than the diameter of the passage opening in the positioning sections.
F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
B23P 11/02 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluidsConnecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for by making force fits
A valve control system may include an adjustable camshaft that includes an outer shaft and an inner shaft that extends through the outer shaft. The valve control system may further include a phase shifter that comprises a first control element and a second control element that can be rotated relative to the first control element. The outer shaft and the inner shaft may each be connected with a control element. The valve control system may also include a stop coupled with the outer shaft in a torque-proof manner, as well as a counter-stop coupled with the inner shaft in a torque-proof manner. A maximal angle of rotation of the inner shaft in the outer shaft may be determined by the stop bordering on the counter-stop.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 1/04 - Valve drive by means of cams, camshafts, cam discs, eccentrics, or the like
F01L 1/46 - Component parts, details, or accessories, not provided for in preceding subgroups
An adjustable camshaft may include an outer shaft that is hollow and an inner shaft received in the outer shaft and rotatable in the outer shaft. The inner shaft may include a cavity into which oil can be applied. At least a first radial opening may be configured in the outer shaft and at least a second radial opening may be configured in the inner shaft. Thus oil can flow between the cavity and an outside of the outer shaft during overlap of the first radial opening and the second radial opening. The first radial opening on an inside of the outer shaft may have a greater cross-section than on the outside of the outer shaft.
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
The invention relates to a camshaft module (1) comprising a bearing frame (2) on which bearing bridges (3) are arranged, and at least one polygonal shaft (4) on which sliding cam units (5) and bearing rings (6) are directly arranged, one sliding cam unit (5) being arranged between each pair of adjacent bearing rings (6).
The invention relates to a method for permanently fastening at least one cam on a cam carrier, comprising at least the following method steps: a) positioning the at least one cam on the cam carrier in a predetermined axial and angular position in such a way that the cam carrier extends at least in certain portions through a through-hole in the cam, wherein an end face of the cam carrier is in line with an end face of the cam, b) arranging the cam segment formed by the cam carrier and the at least one cam in a mounting device; c) deforming the cam carrier in such a way that the at least one cam is secured on the cam carrier at least in a positively and/or non-positively locking manner against movement in the axial direction, wherein a deforming tool of the mounting device is adjusted in the axial direction onto the end face of the cam carrier, and the cam carrier is deformed in such a way that material of the cam carrier is forced outwards in a radial direction against the cam that has been placed on.
A method for producing a ready-for-use camshaft for controlling valves of an internal combustion engine may be directed towards camshafts that include a carrier shaft on which an end component, for example, a drive wheel, a phase adjuster, or a part of a phase adjuster, is arranged and cam elements that are attached in a positionally fixed manner to the carrier shaft. In some examples, the method comprises providing a carrier shaft and an end component, joining the end component to the carrier shaft, grinding at least the carrier shaft to form cam seats so as to establish readiness for use, introducing a surface profile into a first cam seat, providing a cam element with ready-for-use characteristics, seating the cam element on the cam seat with the surface profile, and repeating certain steps for additional cam elements.
B24B 19/12 - Single purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts
B23P 11/00 - Connecting or disconnecting metal parts or objects by metal-working techniques, not otherwise provided for
F16D 1/06 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
F16H 53/02 - Single-track cams for single-revolution cyclesCamshafts with such cams
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
78.
ASSEMBLED HOLLOW ROTOR SHAFT HAVING A COOLING-MEDIUM DISTRIBUTION ELEMENT
The invention relates to an assembled hollow rotor shaft for a rotor of an electric machine, which rotor rotates about a longitudinal axis, said hollow rotor shaft comprising a cylindrical shell, which surrounds a shaft cavity, and end flanges arranged on both ends of the cylindrical shell, wherein a shaft journal is located on each end flange and wherein an inlet is provided in one of the end flanges, in particular in the shaft journal thereof, via which inlet a cooling medium can be conducted into the shaft cavity and to an inner surface of the cylindrical shell, wherein a cooling-medium distribution element that is symmetrical perpendicularly to the longitudinal axis is arranged inside the shaft cavity, which cooling-medium distribution element receives the cooling medium entering via the inlet by means of a receiving region, conducts said cooling medium toward the inner surface of the cylindrical shell by means of conducting-away region, and discharges said cooling medium onto the inner surface by means of a discharge region. The invention further relates to a rotor having a hollow rotor shaft according to the type indicated above, which hollow rotor shaft is fitted with laminated cores, and to an electric machine having a rotor of the type indicated above.
A method for arranging a camshaft in a camshaft module includes arranging cam elements and a switching element on a carrier tube to so as to form a displacement element having a bearing section, outside or external to a module housing. The carrier tube is then cut in a region of a bearing section to form two parts. One of the parts is arranged into a bearing bridge in a module housing. The other part is then joined to the first part that was inserted into the bearing bridge.
A valve drive may include a sliding cam element that is held on a carrier shaft so as to be axially displaceable along an axis of rotation of the carrier shaft. The sliding cam element may include at least one cam profile group with cam profile sections of mutually different form. The valve drive may further include a pick-off element by way of which a control movement can be picked off from the cam profile sections and transmitted to a valve. The sliding cam element may also include a second cam profile group that is similar or identical to the first cam profile group and, which for the joint control of one valve, may interact with the pick-off element.
A module may include a receiving element in the form of a bearing frame or a covering hood for arrangement on a cylinder head of an internal combustion engine. The module may further include a camshaft that is rotatably mounted on the receiving element and projects from the receiving element to hold a camshaft wheel. The module can be prefabricated for direct mounting on the cylinder head. In the prefabrication process, the camshaft may be locked against rotation by an externally accessible securing part in an angular position for acting on valves. The securing part may extend through a first aperture in the camshaft wheel and through or into a receptacle of the receiving element. After mounting the module on the cylinder head, the securing part can be removed.
A camshaft for a valve drive of an internal combustion engine having a variable valve opening time may include an outer shaft and an inner shaft that extends through the outer shaft, with the inner shaft being held rotatably with respect to the outer shaft. The camshaft may further include a cam having a multiple-piece configuration, comprising a first part cam and a second part cam. Either the first part cam or the second part cam may be connected fixedly to the outer shaft so as to rotate with it, and the other part cam may be connected fixedly to the inner shaft so as to rotate with it. The camshaft may also include a bearing inner ring of a shaft bearing that is held on the outer shaft, with one of two second part cams comprising an axial attachment that forms at least one part of the bearing inner ring.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
A bearing apparatus for mounting a camshaft in a cylinder head of an internal combustion engine may include a bearing element that surrounds a bearing ring in which the camshaft is rotatably mounted or mountable. The bearing element may be made of a first material whose expansion coefficient is greater than an expansion coefficient of a second material of which the bearing ring is made. An outer surface of the bearing ring may include a contour that engages in a form-fitting manner with a mating contour formed on an inner surface of the bearing element that surrounds the bearing ring. The contouring formed by the contour and the mating contour may form retaining structures that brace against one another in instances of thermal expansion.
F16C 17/22 - Sliding-contact bearings for exclusively rotary movement characterised by features not related to the direction of the load with arrangements compensating for thermal expansion
F01L 1/04 - Valve drive by means of cams, camshafts, cam discs, eccentrics, or the like
A method for mounting laminated sheets onto a shaft of a rotor provided for an electrical machine may involve sliding the laminated sheets onto the shaft and bracing the laminated sheets between two rotation-resistant thrust washers connected with the shaft. The laminated sheets may be slid onto the shaft to lie against a stop in the form of a first thrust washer arranged upon a first subsection of the shaft. A second thrust washer may be pressed in by axially bracing the laminated sheets onto a second axial subsection of the shaft in a frictional interlocking manner. The second thrust washer may be positioned after a surface of the second subsection has been enlarged by the introduction of an exterior surface profile.
H02K 1/12 - Stationary parts of the magnetic circuit
H02K 1/28 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures
H02K 1/22 - Rotating parts of the magnetic circuit
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The invention relates to a device (1, 101) for separating liquid from a volume flow (2, 102) of a gas-liquid mixture, comprising a separating element (3, 103) and a deflecting arrangement (4, 104) for deflecting the volume flow (2, 102) in the direction of the separating element (3, 103) to deposit liquid on the separating element (3, 103) and in this way separate it from the volume flow (2, 102), wherein the deflecting arrangement (4, 104) has at least one flow channel (5, 105) with a volume flow inlet (6, 106), wherein the flow channel (5, 105) extends axially away from the volume flow inlet (6, 106) and has an opening area (7, 107), characterized in that the opening area (7, 107) is arranged running axially on the flow channel (5, 105), the opening area (7, 107) is formed in such a way that it is at least partially covered by a covering means (11, 111) that is movable in relation to it, in that the covering means (11, 111) is formed in such a way that it is movable to different extents at two locations at an axial distance from one another, in order to influence a partial volume flow (12, 112) of the deflected gas-liquid mixture flowing out of the flow channel (5, 105) through the opening area (7, 107) at one axial location to a different degree than that at another axial location.
B01D 45/06 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
B01D 45/08 - Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
The invention relates to a shifting element and a shifting system for shifting a cam segment along a shaft longitudinal axis of a shaft segment of a cam shaft, as well as a cam shaft for actuating valves of an internal combustion engine, wherein the shifting element has a guide groove for guiding an engagement element, which extends along an outer peripheral surface of the shifting element at least in sections, wherein the guide groove has an effective section for bringing about a rotational movement of the engagement element about the rotational axis thereof, which extends orthogonally to a rotational axis if the shifting element, and wherein the effective section has a contact element for the eccentric contacting of the engagement element.
A camshaft may have a bearing shaft configured as a hollow shaft in which an inner shaft is disposed concentrically relative to the bearing shaft. The inner shaft may be twistable relative to the bearing shaft. A first cam segment having a first recess for receiving the bearing shaft may be disposed on the bearing shaft, may be rotatable relative to the bearing shaft, and may be connected in a rotationally fixed and axially fixed manner to the inner shaft. A second cam segment having a second recess for receiving the bearing shaft may be disposed on the bearing shaft. The second cam segment may have at least two cam contours and may be fastened on the bearing shaft so that the second cam segment is rotationally fixed to the bearing shaft and arranged in an axially displaceable manner on the bearing shaft.
The invention relates to a method and to an assembly device for assembling a rotor segment of an electric machine, wherein the rotor segment at least has a rotor shaft, at least one laminated core joined to the rotor shaft, and two pressure elements, which clamp the at least one laminated core, and wherein the method at least has the following steps: arranging the rotor shaft in an assembly device and orienting the rotor shaft using an orienting means of the assembly device; arranging the at least one laminated core and at least the second pressure element or the first pressure element within a clamping means of the assembly device; orienting at least the at least one laminated core by means of a positioning module of the clamping means; and moving the rotor shaft in relation to the clamping means in such a way that the at least one laminated core is pushed onto the rotor shaft and at least the second pressure element or the first pressure element is connected to the rotor shaft. The invention further relates to a rotor segment, having a shaft segment and at least two laminated cores, which can be arranged at an offset to each other in respect of angular position, wherein each of the laminated cores has at least one marking.
H02K 15/03 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
H02K 15/02 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
The invention relates to a modular assembly (1), comprising a housing frame (10) and at least one camshaft (11) rotatably accommodated in the housing frame (10), wherein the camshaft (11) has a supporting shaft (12), on which at least one camshaft component (13) is axially pressed onto a setting point (14), wherein the housing frame (10) has an accommodating space (15), which is at least partially matched to the installation space necessary for the camshaft (11). According to the invention, the housing frame (10) has at least one expansion region (16), in which the accommodating space (15) is expanded beyond the installation space necessary for the camshaft (11).
The invention relates to an adjustable camshaft (10) for the valve drive of an internal combustion engine, having an outfit shaft (11) and an inner shaft (12) rotatable in the outer shaft (11), and having a phase actuator (1) by means of which the outer shaft (11) and/or the inner shaft (12) can be adjusted into a phase position formed about an axis of rotation (13), wherein the camshaft (10) has a bearing section (14) for mounting the camshaft (10), via which the phase actuator (1) can be fed with a pressure medium. According to the invention, the inner shaft (12) has an end (15) on which a screw-fitting flange (16) is arranged, and wherein a rotor (14) of the phase adjuster (1) is attached to the screw-fitting flange (16), and wherein the free end (15) of the inner shaft (12) has a channel (18) coinciding with the axis of rotation (13) for the at least partial feeding of the phase actuator (1) with a pressure medium, which channel (18) extends at least into the bearing section (14).
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
The present invention relates to a method and a device for assembling an adjustable camshaft which has at least one shaft segment comprising an outer shaft and an inner shaft extending concentrically through a passage bore of the outer shaft, wherein the method comprises at least the following steps: – performing pre-positioning of the inner shaft, wherein the inner shaft is inserted, eccentrically at least in sections, into the passage bore of the outer shaft, – pushing a positioning element in a pushing-in direction through a first outer-shaft bore formed in a circumferential wall of the outer shaft, through an inner-shaft bore extending orthogonally with respect to the longitudinal axis of the inner shaft, and through a second outer-shaft bore formed in a circumferential wall of the outer shaft, in such a way that the positioning element projects out of the second outer-shaft bore, – performing final positioning of the inner shaft, wherein the positioning element is moved counter to the pushing-in direction such that the inner shaft is oriented concentrically within the passage bore of the outer shaft.
An adjustable camshaft for a valve drive of an internal combustion engine may include an inner shaft extending through an outer shaft with a cam element disposed on the outer shaft. The cam element may be connected rotationally conjointly to the inner shaft. The cam element may have a shaft passage with an internal bearing surface, which, together with a bearing surface on an outer side of the outer shaft, forms a plain bearing arrangement for the rotatable arrangement of the cam element on the outer shaft. The bearing surface on the outer side of the outer shaft and/or the internal bearing surface of the shaft passage of the cam element may include one or more sections with a spherical shape.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F01L 1/34 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening
The invention relates to an adjustable camshaft (1), comprising an inner shaft (10) and a tubular outer shaft (11), wherein the inner shaft (10) is rotatably accommodated in the tubular outer shaft (11) and wherein adjustable cam elements (12, 13, 14, 15) are rotatably arranged on the outer shaft (11), which adjustable cam elements are connected to the inner shaft (10) for conjoint rotation, and wherein a phase adjustment device (16) is arranged at an end of the inner shaft (10) and at an end of the outer shaft (11), by means of which phase adjustment device the phase position of the inner shaft (10) can be adjusted in relation to the phase position of the outer shaft (11) about a camshaft axis (17). According to the invention, the inner shaft (10) has at least one material reinforcement region (18) for mechanical reinforcement in the region adjoining the phase adjustment device (16), by means of which mechanical reinforcement the vibrational behavior of the adjustable camshaft can be influenced.
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
94.
METHOD FOR THE COMPENSATION OF TOLERANCES BETWEEN A STATOR AND A ROTOR OF A PHASE SHIFTER FOR AN ADJUSTABLE CAMSHAFT
The present invention relates to a method for adjusting a gap (5) between a stator (10) and a rotor (11) of a phase shifter (1) for an adjustable camshaft (12), the stator (10) being connected to an outer shaft (13) and the rotor (11) to an inner shaft (14) of the adjustable camshaft (12), so that the phase position of the inner shaft (14) is adjusted relative to the phase position of the outer shaft (13) when the rotor (11) is rotated in the stator (10), and the gap (5) being formed between at least one sliding surface (15) on the stator (10) and at least one sliding surface (16) on the rotor (11). The method according to the invention comprises at least the following steps: coating at least one of the sliding surfaces (15, 16) with a gradually removable coating (17); assembling the phase shifter (1), comprising joining the rotor (11) in the stator (10); activating the phase shifter (1) by rotating the rotor (11) in the stator (10) and adjusting the gap (5) between the stator (10) and the rotor (11) by abrading at least a partial thickness of the coating (17). The invention further relates to a phase shifter (1) which comprises such a coating (17).
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
The invention relates to a hollow shaft arrangement (1), comprising a hollow shaft (2), in particular a rotor shaft of an electric motor, through which a fluid can be passed for the purpose of cooling, wherein in an inner space (3) of the hollow shaft (2), surface-enlarging cooling structures (9) for transferring thermal energy from the hollow shaft (2) to the fluid are arranged. The cooling structures (9) are connected to the hollow shaft (2), wherein the cooling structures (9) are part of a cooling body (8), which is formed separately from the hollow shaft (2).
B60K 17/22 - Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
B60K 1/00 - Arrangement or mounting of electrical propulsion units
B60K 17/24 - Arrangement of mountings for shafting
The invention relates to a camshaft adjustment device (1) for internal combustion engines of motor vehicles, – with a camshaft having an outer camshaft (2) and an inner camshaft (3) which is adjustable in terms of rotational angle relative to the outer camshaft (2) about a longitudinal axis (6), – with a camshaft adjuster (4) for the adjustment of the outer camshaft (2) relative to the inner camshaft (3), having a stator (8) connected rotationally conjointly to the outer camshaft (2) and a rotor (7) connected rotationally conjointly to the inner camshaft (3), wherein a component (20) fixed to the camshaft adjuster is connected in positively locking fashion, for the purposes of transmitting a torque, to a component (17) fixed to the camshaft, and wherein the connection has receptacles (25) formed by corresponding recesses (19, 24) in the component (20) fixed to the camshaft adjuster and in the component (17) fixed to the camshaft, and wherein in each case one rolling body (26) of convex shape is arranged in the receptacles (25).
F01L 1/344 - Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
The present invention relates to a camshaft segment with at least one camshaft having a shaft element and having a cam element, and to a camshaft bearing for the mounting of the camshaft at least in a radial or axial direction, wherein the camshaft bearing has at least one oil transfer element for the transfer of an oil medium to the camshaft, and the camshaft has at least one oil-guiding element for receiving and conducting the oil medium, and wherein the camshaft bearing has at least one reduction element, the material of which has a coefficient of expansion comparable to the coefficient of expansion of the material of the camshaft.
The present invention relates to a camshaft module, (1) having a module body (10), in which at least one camshaft (11) is accommodated for controlling valves for the load change of an internal combustion engine, the camshaft (11) comprising a support shaft (12) and a plurality of sliding cam pieces (13) which are slidably received on the support shaft (12) in the axial direction (14) of the support shaft (12). According to the invention, a support element (16) is provided, on which actuators (15) can be received for the axial displacement of the sliding cam pieces (13), the support element (16) extending in the axial direction (14) and thus parallel to the support shaft (12).
The invention relates to a method for positioning at least one cam element on a shaft segment of a camshaft by means of an assembly auxiliary element. The method comprises at least the following steps: arranging the shaft segment relative to a first tool such that a first distal shaft segment end of the shaft segment is flush in contact to a tool surface of the tool fitted to the shaft segment, arranging the cam element on the shaft segment in a pre-position, arranging the assembly auxiliary means, wherein a first distal end of the assembly auxiliary means which contacts the tool surface of the first tool fitted to the shaft segment such that the assembly auxiliary means forms a defined distance to the first tool along a shaft segment longitudinal axis, and moving a second tool at least in sections along a shaft segment longitudinal axis until the second tool contacts a second distal end of the assembly auxiliary element, and moving the cam element by means of the second tool from the pre-position to an end position.
The invention relates to a camshaft, comprising at least one shaft segment having at least one shaft body, wherein the shaft body has a cut-out for accommodating an orientation element for orienting an end piece that can be connected to the shaft segment, wherein the cut-out extends from an end face of the shaft body within a shaft body wall along a longitudinal axis of the shaft segment, and a hole, which extends at least in some segments along the cut-out on a lateral surface or between the cut-out and the lateral surface of the shaft body.
