DE102006019435B4 - Rotor of a camshaft adjuster - Google Patents

Abstract

The rotor has a rotor core (7), from which blades (5) leave. A locking pin (9) is guided into an interlocking opening (11), such that the pin is extendable from the rotor by a rotor surface. The opening is a sliding hole that passes through one of the blades of the rotor and is provided with two different cross sections. The opening supports a casing (21) in sections, where the casing is fixedly inserted in the opening below a surface (13) of the rotor. An independent claim is also included for a method for manufacturing a rotor of a camshaft adjuster.

Description

The The invention relates to a locking opening of a rotor of a camshaft adjuster, in particular locking openings with locking pins in swivel motor-type camshaft adjusters.

modern Motor vehicles are nowadays usually with one or more Camshaft adjusters equipped. Camshaft adjusters are rotary transmission elements, the relative phase angle between a driving shaft and an aborted shaft can adjust to each other. For internal combustion engines is the opening and closing time of the gas exchange valves by means of the camshaft adjuster in relation to the crankshaft, usually hydraulic, adjusted.

Especially often represented are camshaft adjusters, which are after a helical Principle work, and camshaft adjuster, which is based on a swing motor principle work. While the camshaft adjuster with a helical toothing due to the helical toothing have a certain self-inhibition or Eigenverharrung are the Schwenkmotorbetriebenen camshaft adjuster so smoothly that for one Preferential position, for example, at a shutdown, special Load state or start state of the internal combustion engine taken to be provided, a separate locking mechanism must become.

It Numerous locking mechanisms are known which are frequently used The words to describe are that a pin in the rotor extendable is stored, and so the rotationally loosely mounted second component of the camshaft adjuster, the stator, with the rotor in one Can bring interference. During the Engagement time has the hydraulic pressure in between itself between the rotor and the stator forming hydraulic chambers have no effect on the change of position of the rotor to the stator. Rotor and stator rotate in their during locking Locking position almost synchronous to each other, driven by a external drive.

If the lock is retracted, this is the condition to the rotor and stator freely movable in a certain angular relationship to each other are leads a relative pressure difference between oppositely acting Hydraulic chambers to a relative rotation of the aborted shaft across from the driven shaft.

There are numerous considerations in the patent literature as to how to design a locking aperture and a suitable locking pin to ensure engagement between the rotor and stator under various operating conditions, such as hot running, idling, depressed, even at high displacement speeds. Above all, many drafts have a particularly sophisticated design in mind, based on the respective rotor manufacturing technology, to enable, for example, noise behavior, fault tolerance or increased mobility. By way of example, the following publications may be mentioned for this purpose, DE 196 06 724 A1 the INA Rolling Bearings Schaeffler KG, the DE 196 23 818 A1 the Nippondenso Co, the DE 197 42 947 A1 the DENSO Corporation, the DE 100 38 082 A1 the DENSO Corporation, the DE 101 49 056 A1 the DENSO Corporation and the JP 2001050018 A the DENSO Corporation. In many documents locking openings are seen, which are designed as a blind hole. Hole drilling hole formation is particularly good in the area of the reference numbers 19 and 51 in the figures of US Pat. No. 5,960,757 the Nippondenso Co. ltd. to see.

from that is derived that the rotor first in a first manufacturing step for producing its external dimensions by cutting off an extruded profile or by turning is produced, and in a next Step a blind hole in the wing of the rotor is bored. As a result, it causes the component Rotor must be re-clamped several times, reducing both the machining effort increases, as with every processing step, the error rate elevated becomes. Furthermore, an elevated Material expenditure given, because, for example, after a certain number must be exchanged at drill holes of the drill.

The use of a stepped bore, or possibly also a two-sided bore or suitable other mechanically abhebenender manufacturing forms, for the installation of parts of a locking module with locking pin can the German patent DE 10 2005 004 281 B3 , filed on 28.01.2005 for the patent holder Hydraulik-Ring GmbH, from the 5 be removed. The associated patent family member US 2006 201 463 A1 indicates that all the dimensions described in more detail can be found in the front part of the pin and in the area of the pin receiving hole, in the stator but not in the guide hole area.

In the DE 102 13 831 A1 , also published as US 2002 139 332 A1 , the Denso Corp., based on priorities from 2001 and 2002, are presented numerous academic exercises on how to enable with multiple pistons locking a camshaft adjuster an uncontrolled shutdown internal combustion engine, which prevent taking a lag position of the connected camshaft relative to the crankshaft should. This is shown in the schematic example Game over 9 a construction exercise whose practical feasibility in the automotive industry finds many difficulties. One of the pistons is arranged in the stator and therefore stationary. The rotor is partially spaced somewhat in the region of the sleeve of the piston even in the stop position.

The Using a ring as an insert in the stator, before the priority day, 16.05.2003, of US application US 2004/0226527 A1 by Delphi Technologies Inc. already often used in the professional world, as centering is having a big game so that the locking pin at higher angular velocities at all Catch probability. The ring does not lead this but Locking pin in the sense of the present invention, but has only light locking tasks.

In the US 2001/054406 A1 (Applicant: Okada et al.), In particular paragraph 36, it is described that a sliding sleeve can be pressed into the rotor for sliding guidance improvement of the pin.

Advantageous It is designed to design a locking mechanism the problem is not lost from the eye, with as few as possible and simply designed parts a latch, preferably in a rotor blade, so that it is reliable Easy to produce or to produce.

The inventive task is achieved by a rotor according to claim 1, claim 9 shows how an inventive camshaft adjuster is designed, and according to claim 10 is a suitable manufacturing method described.

Of the Rotor of a camshaft adjuster is often inside the stator, which forms a closed chamber with corresponding covers, wherein in the camshaft adjusters according to the swing motor principle a space between rotor and stator is given to create pressure chambers to be able to the size of her mutable are. When unlocked, the rotor and stator change their Capable if a hydraulic medium, which can be introduced into the pressure chambers is the pressure in certain pressure chambers increased while in the counteracting pressure chambers a relatively lower pressure sets in. To the effect to increase the pivoting principle, is usually a plurality of wings, for example 5, designed, between the webs of the stator at a certain angle of rotation, like For example, 20 to 25 degrees, are rotatably arranged. In some wings Locking mechanisms are provided which a locking pin and a locking opening and other components, such as a spring, may include. Under Applying a corresponding pressure, the biasing force can counteract drives the locking pin in its withdrawn, the unlocked Position, back. The wings go often into a rotor core over, which represents a circular structure and in which the aborted Shaft, such as the camshaft, can intervene. If the Rotor is arranged to the stator so that the rotor is in its rest position is located, the locking pin on the rotor surface is extendable. The locking opening itself is a through hole, by the length, preferably the height, continuous, complete, without interruption. The continuous Hole has at least two different cross sections. Should the cross sections can describe nearly circular openings the average diameter can be determined. The diameters are soft from each other. It forms a stepped through hole. in this connection can the diameters are chosen be that she partially overlaid Can form circular disks or that one of the diameters almost completely in the other diameter can rise. Optionally, too further diameters selected be, for example, a very small diameter of a semicircle, as an extension of the largest diameter of the coherent Hole can be considered. But there are other forms as well, like ovals, shaped openings and star shapes occasionally advantageous, then becomes of a cross-section spoken. On the cross sections the description of the diameters is equivalent apply.

In the locking hole a sleeve is inserted. The sleeve is in a press fit. The press fit is formed between Sleeve wall, preferably Outer wall, and surface wall of the locking opening in a circular arc section. Located in another arc section the sleeve in a cantilevered state so that the sleeve serves as a partition. The sleeve will Completely plugged into the rotor. It ends below the surface, alternatively on the surface, the rotor, the sleeve not completely through the height of the rotor is continuous. The sleeve itself is a simpler circular object, without numerous gradations, so stepless. By the simple design of the through hole of the locking hole and the simple design of the sleeve is the error rate minimized, further contributing to this is simply press fit formation, which specifies a simple, defined insertion depth.

The circular sleeve serves as a plain bearing for the retractable locking pin. It has a smooth surface, so that the locking pin easily out in the plain bearing and can retract. A misjudgment is thus prevented.

The Insert the sleeve in their press fit can be further facilitated by the fact that a stop flange at one end, preferably at the end to surface closer to the rotor Side, exists, so given a maximum offset is. In such a case, advantageously, the locking opening as two-tiered passage opening be designed. The first stage is very close to the surface, they is so far inside the wing of the rotor as the thickness of the stop flange is. The next stage is so far inside the wing, that the pressed-in sleeve, the with the surface closes, did not reach the stage.

The Sleeve in Rotor forms with its non-press fit section one Divider wall, which forms a supply channel from the sliding surface of the Locking pin separates. The supply channel leads to a Cuff of the locking pin. According to one embodiment pushes the locking pin with the cuff against the sleeve. This takes over the sleeve several functions, a channel-forming function, a sliding function and one or more stop functions.

Of the Supply channel is longer as the sleeve. However, the supply channel is not completely continuous through the wing. It ends in a middle zone, inside the wing. Of the Supply channel can advantageously by the second, shorter diameter being represented. The sleeve has the length, that it can preferably completely enclose the shaft of the locking pin when the shaft in its extended position partially protrudes from the wing. The sleeve is considered as a support sleeve in this condition. The sleeve has the length, that an underflow area the cuff can remain. The supply channel is related on a hydraulic medium communicatively with a flow channel in Connection, in turn, from a pressure space between the rotor and stator the camshaft adjuster can be supplied. The described design contributes to Supply security of the locking pin at.

In an alternative embodiment is from the sleeve an almost square notch notched, as an opening the hydraulic medium from the supply channel to the underflow region the pin is used. The supply channel has a length. The length can be shorter than the length of the Sleeve. It can also be about the length the sleeve to have. The length is shorter or has to the same length like the length the sleeve, the sleeve with a notch or stamping on one of the two ends is provided in the area to the supply channel.

Becomes the rotor wing decomposed into individual layers, it can be seen that the different Diameter given in different layers of the wing are. Starting from one side of the rotor, all diameters can be found there first be, with continuous direction on the opposite side of the rotor are individual diameters as openings not to be found anymore. For special manufacturability of the rotor helps it when the rotor is a sintered component.

rotor and Stator form together with other components a camshaft adjuster. The rotor, which can be designed as a sintered part, is smooth and at the same time fixed in the stator of the camshaft adjuster, the for the locking pin, which runs smoothly in the sleeve, provides a receiving hole.

One suitable manufacturing method of a rotor of a camshaft adjuster according to the invention is that first a rotor sinter with about twice to triple, preferably 2.5 times the amount of metal powder is loaded, especially in the direction of the height of the rotor. The height of the rotor is the short side of the rotor. The metal powder is sintered, wherein the rotor sintered form comprises a stamp, the has at least two different diameters. The Stamp creates the locking hole. Under the term stamp falls also a split stamp, the first part of which creates the locking opening and the second part of which creates the bulge for the supply channel. Another stamp shape consists of a contour through which both Longitudinal opening forms at the same time, within a single work process can. While the sintering is simultaneously created the locking hole. afterwards becomes the sleeve, which can act as a bearing, among other things, flush in the wing of the rotor pressed, so formed beyond the sleeve, a supply channel will, while on this side, inside the sleeve, the tread for the Locking pin is created. From the other side, from the Side from which the sleeve has not been introduced, the sleeves side facing away, is introduced the locking pin, a circumferential horizontal sleeve Has. The circumferential horizontal sleeve is angled to the direction of movement, the Extension direction, of the locking pin. The horizontal cuff is located in the portion that faces away from the sleeve.

Between the sintering step and the pressing of the sleeve, a calibration and preferably a grinding of the surfaces, in particular excluding the end faces, of the rotor can be performed. If the surface can not be made very sharply outlined by the sintering mold, the calibration and, if necessary, the surface treatment by means of a removal process will help considerably to ensure a dimensional stability.

One Advantage of the described method is that the rotor including its opening for the Inclusion of locking elements in a single step shaping process is created, the surface of the Rotor including its indentations and recesses during the Pressing process is created simultaneously, coherently. A subsequent Drilling that removes material removing parts of the rotor, Needless through the outer contour and inner contouring of the rotor. It forms a closed Surface of the Rotor, from the front sides of the rotor over the locking hole up to the transverse surfaces of the rotor formed as a closed path rich.

If the finished locking element, a locking pin installed is, according to a design example of this on a Spring plate over support a spring element, at least a partial, if not complete, closure of a Side of the surface of the rotor forms, leaving the composite surface consists of two parts, a sintered rotor blade and an inlaid, firmly connected to the rotor, spring plate.

The invention can be understood even better by referring to the 1 to 10 Reference is made to FIG

1 shows a camshaft adjuster with conventional machining technology,

2 a camshaft adjuster after 1 from a rotated perspective,

3 shows a rotor of a camshaft adjuster from a plan view,

4 a section through a wing of a rotor after 3 represents,

5 a rotor similar to 3 with a supply channel according to the invention,

6 a section through a part of a wing of the rotor after 5 represents,

7 one too 6 similar section through a part of a wing of a rotor with changed dimensions,

8th a front view of a wing section section of a rotor after 5 .

9 a further embodiment of a rotor according to the invention, and

10 a section through a wing of a rotor after 9 shows.

In the 11 to 14 another embodiment is disclosed. The 15 and 16 show a further embodiment of a sleeve according to the invention.

An inventive manufacturing method is described in the 17 and 18 shown graphically.

In the 1 and 2 is an open camshaft adjuster 1 with a rotor 3 and a stator 2 shown, which operates on the principle of a hydraulic swing motor. The rotor 3 has a rotor core 7 and a certain number, in the present example five, wings 5 that can be partially identical to each other. Some wings 5 have additional functional elements such as attenuators, hammer shapes, pressure equalization channels, underflow channels, or increased seal lengths. One of the illustrated wings 5 is with the additional functional element locking opening 11 fitted. Shown is the rotor 3 with a wing without lateral damping throttle 6 that the latch opening 11 and four wings 5 , the lateral damping chokes 6 exhibit. By the term "laterally" they are at a nearly right angle to the rotor surface 13 meant sides of the wing, which often represent the shorter sides of the wings. But it is also conceivable that several functional elements are united in one wing or that several wings a locking hole 11 demonstrate. The wings 5 separate different pressure chambers 33 . 34 on each shorter side of the wing 5 are formed and between pivoting wings 5 and jetties 4 to shape. By pivoting the wings 5 become the pressure chambers 33 . 34 , which are present as oppositely designed, oppositely acting chambers, changed their width. Due to the width change is a change in volume of the pressure chambers 33 . 34 associated. Laterally, to one of the pressure chambers 33 . 34 , leads a flow channel 29 , The pressure chambers 33 . 34 are with a hydraulic medium 31 , such as engine oil, filled.

The locking opening 11 in the 1 and 2 is manufactured according to a conventional drilling method. The result of the manufacturing process by means of double drilling with different drill sizes or stepped drilling by a single step drill shows a locking opening 11 into which a sleeve 21 , preferably by press fit, can be used. The openings with different diameters ends with a different diameter on one side of the wing 5 , the rotor surface 13 , as on the other, opposite side 14 of the same grand piano 5 , The locking opening 11 lies approximately in the middle of the rotor surface 13 one wing 5 , which is the broadside of the rotor 3 represents. Most of the wing width is through the hole from the wing 5 removed. The different diameters are substantially coaxial parallel to the camshaft axis. The sleeve 21 has a stop flange 23 on. The locking opening 11 is the height H of the rotor 3 , which represents the shorter height, throughout. The locking opening 11 is graded. The step is the result of a stepped drilling. The stop flange 23 the sleeve 21 lies on the level. From the side, the height side of the rotor 3 is, has a supply channel 27 from a pressure room 33 in the locking hole 11 , The supply channel 27 is located at about half the height of the rotor 3 , The supply channel 27 opens at the level of the locking opening 11 , The locking opening 11 is a circular through hole. The sleeve 21 has such an outer diameter larger than the bore diameter of the smaller opening diameter portion. The sleeve 21 sits in the press fit in the opening portion with the smaller diameter. The stop flange rests on the shoulder that forms between the two consecutive diameters.

In 3 is the rotor 3 without his stator 2 shown in a front view, the one of the large-area rotor surfaces 13 shows the viewer. To the rotor core 7 there are wings around 5 evenly distributed over its circumference. In the wing, the side, angled from the rotor surface 13 without further contours, only by a vertical, smooth, shorter, almost square surface is provided, is the continuous locking opening 11 with her locking pin 9 arranged, extending from a rotor surface 13 on the opposite rotor surface 13 extends. The pencil 9 runs in the sleeve 21 ,

The locking opening 11 is in more detail in 4 shown. In the locking hole 11 is the locking pin 9 , a cuff 10 and a shaft 12 includes, slidably mounted. The locking pin 9 gets into the through hole 19 used, the two different diameters 15 . 17 which lie in different layers S, S ', S ". The cuff 10 has a larger diameter than the shaft 12 , cuff 10 and shaft 12 lie one above the other in the same flight on the same axis, they are coaxial, integrally formed. The locking opening 11 running from one side of the rotor surface starting with a cross-section large enough to guidely receive the shaft up to about the height layer of the blade in which a lateral inflow channel 29 empties. Below the underflow area 35 the cross section of the locking opening tapers 11 on the cross section of the shaft 12 , The taper can be created by a round, rotatorisch balanced, the entire circumference spanning sleeve. The sleeve forms a stepped locking opening whose cross-sections are narrowed along the height H to the shaft cross-section. The pencil 11 moves in the extension direction R.

As seen from the top view 3 is easily removable, has the sleeve 21 a smaller diameter than the widest point of the locking hole 11 and a larger inner diameter than the outer diameter of the shaft 12 of the locking pin 9 , The under the cuff 10 reaching inflow channel 29 directs hydraulic fluid under the cuff 10 in order that the hydraulic medium, the cuff and thus the resulting pin in the space of the wider diameter of the locking hole 11 propel.

Another embodiment is in the 5 to 8th to see. Similar parts as in the 3 and 4 may be explained similarly for readability reasons, as already explained before. In a wing 5 the one out of the rotor core 7 Outgoing bulge is in turn the locking hole 11 with her locking pin 9 available. The locking opening 11 looks a bit more complicated than the embodiment of the 3 and 4 The production of the illustrated form is just as simple. The basic shape of the locking opening 11 is a circular hole with a lateral, z. B. aligned on the wing outside or on the wings far side, recess, which is preferably also present over the entire rotor height. The opening looks like a fractal with two centers from the front. The sleeve 21 is inserted in the opening. The sleeve 21 forms an inner, for the shaft 12 of the locking pin 9 trained, plain bearing area and an outer area, which serves as a supply channel 27 with a much smaller diameter than that of the locking pin 9 Is provided. The supply channel 27 flows approximately in the center of the wing 5 in the underflow area 35 of the locking pin 9 , The underflow area 35 is formed at least partially circumferentially around the substantially round pin by a piercing depth before the cuff 10 of the locking pin 9 comes. The cuff 10 , which represents a horizontal stop cuff, delimits the hydraulic medium of the supply channel and the underflow region 35 against the on the locking pin 9 opposite pressure side. The sleeve 21 sits in a partially touching interference fit in the opening of the rotor 3 , its cantilever section at the same time a part of the supply channel 27 is. Other parts of the supply channel 27 be through the wall 28 , formed from the wing 5 , educated. The sleeve 21 thus assumes two functions in two functions, the plain bearing and the oil guide. Like in the 7 you can see it is the pencil 9 through the spring 8th spring biased.

In the embodiment according to 9 and 10 is a similar structure as in the 5 to 8th shown, with the oblong in height of the rotor 3 extending supply channel 27 through a lateral, out of the wing 5 protruding, inflow channel 29 supplementing the supply of the locking pin 9 Partially in the locking hole 11 running, with hydraulic fluid from one of the hydraulic chambers (see in the 1 and 2 the reference numerals 33 . 34 ) between the wings 5 of the rotor 3 allows. The inflow channel 29 is a parallel limited, shortest way, flat rectangular channel attached to the sleeve 21 or one of the ends 22 the sleeve 21 finds his degree. To get under the cuff 10 with her underflow area 35 to arrive, the hydraulic medium passes through different flow areas, their flow directions compared to the wing 5 of the rotor 3 be redirected several times. The baffles contribute to pressure propagation during pressure changes with hydraulic fluid almost at rest. A so described wing 5 depends simply or repeatedly on the rotor core 7 , The shaft 12 The pin is slidably mounted on the inside of the sleeve.

The embodiment of 11 to 14 shows a rotor according to the invention 3 with five rotor blades 5 around a rotor core 7 around, in whose one rotor wing 5 a locking pin 9 in a sleeve 21 plugged. The sleeve 21 is in its insertion depth by a stop flange 23 so limited that the sleeve 21 with its stop flange 23 Surface-locking with the rotor surface 13 concludes. The stop flange 23 is at one end 22 the sleeve 21 educated. The opposite surface 14 , the opposite surface 14 , the rotor 3 shows only one locking hole 11 , The circular sleeve 21 has a likewise circular stop flange 23 However, in an alternative embodiment, which can only be present in a circular arc. In the in 13 illustrated embodiment narrows the stop flange 23 on the surface 13 of the rotor 3 the inflow channel 29 a little. The supply channel 27 then extends evenly into the underflow area 35 , In the retracted position of the locking pin 9 remains the underflow area 35 unterströmbar. A section of the outer wall 25 the sleeve 21 at the same time forms a region of the inner wall of the supply channel 27 ,

In the 15 and 16 an alternative embodiment is shown. In particular, the supply channel 27 with the sleeve 21 is designed slightly differently in its length than in the previous embodiments. The sleeve 21 has a notch endings. On the other end 22 the sleeve 21 is a beading towards the outside wall 25 the sleeve 21 available. Through the notch in a circular section of the sleeve 21 is a connection between the supply channel 27 and the underflow area 35 of the locking pin 9 created. The supply channel is shorter or the same length as the sleeve. This arrangement has the advantage that manufacturing tolerances can be more easily absorbed. However, care must be taken that the sleeve is always correct in the sense of its orientation in the locking opening 11 is introduced. The entire assembly is, as in the similar embodiments, at a suitable location of the wings 5 ,

In the 17 and 18 is a Sinterherstellverfahren a manufacturing step of a rotor according to the invention 3 of the 1 to 14 in a rotor sinter 51 with locking opening 11 for later insertion of a sleeve 21 shown. The rotor sinter 51 has at least two punches 53 on, whose larger punch in the middle of the rotor sintered 51 lies. It forms the axle connection of the camshaft adjuster to the camshaft. Laterally pierces a stamp 53 the rotor 3 which can either be equipped with a thickening for the supply channel or offers another partial stamp. The metal powder 55 becomes after loading the rotor sinter 51 compacted. As a rule, approximately twice the volume V of the rotor 3 with the metal powder 55 filled. The metal powder 55 will be like in 16 shown pressed. After that, the sleeve can 21 be pressed. When the locking pin 9 is inserted, is the rotor 3 finished after an optional grinding process.

Although only a few embodiments have been illustrated, it will be understood that of course any combinations of the sleeve 21 with any number of locking holes 11 in several wings 5 can be chosen, with some sleeves 21 with and without stop flange 23 can be equipped. An advantage of the invention is that the sleeve is repeatedly used functionally as a simple molded part can be easily inserted into the rotor in order to develop a locking hole and at the same time to guide the locking pin. The rotor can be produced as a sintered part, whereby the post-processing steps can be reduced to a minimum. For example, hardly any drilling with their clamping operations are necessary.

The present invention relates to a new rotor and a corresponding manufacturer Method for a rotor according to the invention, in which a sleeve takes over a structural component oil guiding functions in addition to locking pin bearing functions, wherein the sleeve is flush-mounted in a wing of the rotor by means of press fit. In this case, the sleeve does not extend completely from surface to surface of the rotor. LIST OF REFERENCE NUMBERS 1 Phaser 2 stator 3 rotor 4 web 5 wing 6 damping throttle 7 rotor core 8th feather 9 locking pin 10 Cuff of the locking pin, in particular horizontal sleeve 11 locking opening 12 shaft 13 rotor surface 14 remote surface 15 first cross section, preferably diameter 17 second cross section, preferably diameter 19 hole 21 shell 22 End of the sleeve 23 stop flange 25 Outer wall of the sleeve 27 supply channel 28 wall 29 inflow 31 hydraulic medium 33 Pressure chamber, first type 34 Pressure chamber, second type 35 Unterströmbereich 51 Rotor Interform 53 stamp 55 metal powder H height R of extension S, S ', S'' layer V volume

Claims (12)

Rotor ( 3 ) of a camshaft adjuster ( 1 ), in particular according to the swing motor principle, with a plurality of wings ( 5 ) and a rotor core ( 7 ) from which the wings ( 5 ) and a locking pin ( 9 ) located in a locking opening ( 11 ) is guided so that it leaves the rotor ( 3 ) over the rotor surface ( 13 ) is extendable, characterized in that the locking opening ( 11 ) a stepped, with at least two different cross sections ( 15 . 17 ) for guiding the locking pin ( 9 ), through a wing ( 5 ) of the rotor ( 3 ) through hole ( 19 ) is that a sleeve ( 21 ), which by their outer wall ( 25 ) a supply channel ( 27 ) forming a cuff ( 10 ) of the locking pin ( 9 ) and the longer than the sleeve ( 21 ). Rotor ( 3 ) according to claim 1, characterized in that the locking opening ( 11 ) in sections a sleeve ( 21 ), which in an interference fit, by a circular arc between sleeve ( 21 ) and wall ( 28 ) of the locking opening ( 11 ), fixed in the locking opening ( 11 ) below the surface ( 13 ) of the rotor ( 3 ) endend, wherein the locking opening ( 11 ) longer than the sleeve ( 21 ). Rotor ( 3 ) according to one of the preceding claims, characterized in that the sleeve ( 21 ) a circular sleeve ( 21 ), which as a sliding bearing for the extendable locking pin ( 9 ), in particular a stop flange ( 23 ) at one end ( 22 ), preferably at the surface ( 13 ) of the rotor nearer end, a maximum offset of the sleeve ( 21 ) certainly. Rotor ( 3 ) according to any one of the preceding claims, characterized in that the sleeve ( 21 ) through its outer wall ( 25 ) together with a wall ( 28 ) of the supply channel ( 27 ) of the locking opening ( 11 ) extending through one of the two cross sections ( 15 . 17 ) of the locking opening ( 11 ), the supply channel ( 27 ) forms. Rotor ( 3 ) according to claim 4, characterized in that the supply channel ( 27 ) shorter than the locking opening ( 11 ) and the sleeve ( 21 ) preferably the shaft ( 12 ) of the locking pin ( 9 ) completely encloses that in the wing ( 5 ) remaining part of the shaft ( 12 ) through the sleeve. ( 21 ) minus an underflow area ( 35 ) of the cuff ( 10 ) is spanned. Rotor ( 3 ) according to claim 4, characterized in that the supply channel ( 27 ) a length up to the same length of the sleeve ( 21 ), wherein the sleeve ( 21 ) with a notch or stamping at one of the two ends in the region to the supply channel ( 27 ) is provided. Rotor ( 3 ) according to one of claims 4 or 5, characterized in that the supply channel ( 27 ) by a surface side ( 13 ), in particular the front side, existing inflow channel ( 29 ) with hydraulic medium ( 31 ), in particular from a pressure chamber ( 33 ) of the camshaft adjuster ( 1 ), can be supplied. Rotor ( 3 ) according to one of the preceding claims, characterized in that the cross sections ( 15 . 17 ) occur in different layers (S) of the wing. Rotor ( 3 ) according to one of the preceding claims, characterized in that the rotor ( 3 ) is a sintered component. Camshaft adjuster ( 1 ) with a rotor ( 3 ) according to one of the preceding claims, wherein in particular a stator inner wall together with the rotor ( 3 ) a inflow channel ( 29 ) from a pressure area on the supply channel forms. Manufacturing method of a rotor ( 3 ) of a camshaft adjuster ( 1 ) according to one of claims 1 to 9, comprising the following steps: - loading a rotor sintered form ( 51 ) with a lot of metal powder ( 55 ), which is at least twice the volume (V), in particular by a volume (V) presented at the height (H) of the rotor ( 3 ), - pressing the metal powder ( 55 ), wherein the rotor sintered form ( 51 ) a stamp ( 53 ) with at least two different cross sections ( 15 . 17 ), preferably diameters, comprising the locking opening ( 11 ), - sintering of the pressed rotor mold, - flush pressing in of a sleeve acting as a bearing ( 21 ), which has a supply channel ( 27 ) in the rotor ( 3 ), and - introducing a, in particular with a spring ( 8th ), locking pin ( 9 ), a circumferential horizontal cuff ( 10 ) which angled to the extension direction (R) of the locking pin ( 9 ) is arranged, from which of the sleeve ( 21 ) facing away from the surface ( 14 ) of the rotor ( 3 ). Manufacturing method according to claim 11, characterized in that between the sintering step and the pressing of the sleeve ( 21 ) calibration and preferably grinding of the surfaces ( 13 ), in particular excluding the end faces, of the rotor ( 3 ) be performed.