DE102014208483A1 - Camshaft adjuster with adjustable locking pin bearing - Google Patents

Abstract

A vane-type hydraulic camshaft adjuster (1) comprising a stator (2) and a rotor (3), the rotor (3) being rotatably supported relative to the stator (2), and at least one locking pin (16) being provided to engage the rotor In contact with a link (19) to limit the rotor (3) to the stator (2) at least in one direction of rotation, wherein the locking bolt (16) leading bearing element (14) is adjustable so that an outer contour of the locking bolt (16) in abutment with the scenery (19) can be brought.

Description

The invention relates to a hydraulic camshaft adjuster of the vane type, with a stator and a rotor, wherein the rotor is rotatably mounted relative to the stator, and wherein at least one locking bolt is provided to limit the contact rotor with a backdrop the rotor to the stator at least in one direction of rotation , wherein the gate is preferably formed by a statorfestes component or a rotorfestes component, such as the stator or the rotor and more preferably the locking pin in the respective counter element to the statorfesten or rotorfesten component, so for example. The rotor or stator axially movable but inserted set out in a movable is.

A camshaft adjuster of the type mentioned is, for example, from the DE 10 2012 209 027 A1 known. This describes a camshaft adjuster with a first component, with a relative to the first component about an axis of rotation within an angular range rotatable second component and with a locking device for locking the first component relative to the second component. In this case, the locking device comprises on the first component, a first locking bolt and a second locking bolt and on the second component at least one Mittenkulisse. In this case, the two locking bars are each movably guided between a locking position and an unlocking position and, in a middle angular position of the components, engage one another in their locking position at least in the one middle slot. In this case, at least one Endkulisse is provided on the second component, engages in a deviating from the average angular position of the components Endwinkellage the first locking bolt or the second locking bolt in its locking position.

Gas exchange valves of internal combustion engines can be actuated by cams of a camshaft. About the arrangement and shape of the cam, the opening and closing times of the gas exchange valves are specifically defined. The camshaft is usually actuated, driven and / or driven by a crankshaft of the internal combustion engine. The opening and closing times of the gas exchange valves of the internal combustion engine are usually specified by a relative rotational position or phase position or angular position between the cam and crankshaft. By a relative change of this relative rotational position between the camshaft and the crankshaft, a variable adjustment of the opening and closing times of the gas exchange valves can be achieved. Due to the variable adjustment of the opening and closing times of the gas exchange valves, for example, the exhaust behavior can be positively influenced depending on the current operating state of the internal combustion engine, the fuel consumption can be reduced, the efficiency can be increased, and / or the maximum torque and / or the maximum power of Internal combustion engine to be increased.

This variable adjustment of the opening and closing times of the gas exchange valves can be made or made possible by a camshaft adjusting device or camshaft adjuster provided between the crankshaft and the camshaft.

For this purpose, a camshaft adjuster is conventionally provided in the kinematic chain between the crankshaft and the camshaft. A part of the camshaft adjuster, hereinafter referred to as stator, is preferably connected to the crankshaft in a rotationally fixed manner. Another part of the camshaft adjuster, hereinafter referred to as rotor, is preferably non-rotatably connected to the camshaft. A gear is conventionally provided between the stator and the rotor. This transmission is usually provided in a vane type hydraulic phaser as a hydraulically actuated vane cell or as a plurality thereof. By acting on the vane with hydraulic pressure, for example by means of a controller and / or valves, the variable adjustment of the opening and closing times of the gas exchange valves can be achieved. This embodiment can also be referred to as Rotationskolbenversteller.

In a hydraulic camshaft adjuster operating conditions may occur during which this hydraulic actuation or hydraulic control is not possible or not ensured or not economical or undesirable. For example, during starting of the internal combustion engine, the rotational position is usually not specified hydraulically. By an uncontrolled rotational position or an uncontrolled changing the rotational position, for example, increased wear of the camshaft adjuster, the camshaft, the gas exchange valves or generally the internal combustion engine can be caused. In order to avoid the uncontrolled rotational position or the uncontrolled change of the rotational position, a releasable or releasable locking of the rotor to the stator is desired. Based on the rotational position of the gas exchange valves, an "early" lock, a "middle" lock or a "late" lock may be desired. These are referred to as early locking, center locking, late locking or the like.

For this purpose, for example, from the aforementioned prior art known to provide a blocking element or locking element, such as a locking bolt. The blocking element may also be provided as a bolt, a pin or a pin. The blocking element may for example be received or mounted or fastened in the rotor. The blocking element can be actuated for example by a spring bias. The blocking element can be hydraulically released or ventilated, for example. The blocking element can, for example, come into contact with a locking link of the stator.

Due to economic considerations (Tolerierung) an engagement of a bolt-like locking element is in a locking slide game. This is also referred to as locking clearance or locking clearance tolerance. This locking game leads to an undesirable noise or unwanted wear of the bolt and / or the backdrop.

It is therefore the object of the present invention to provide a camshaft adjuster with a possibility for adjusting the locking clearance. In particular, a suitability of the camshaft adjuster for use in center locking is desirable.

This object is achieved in a generic camshaft adjuster in that a locking bolt leading, preferably provided by the rotor and / or the stator separate bearing element is adjustable so that an outer contour of the locking bolt in contact with the backdrop, which is provided / molded approximately from the stator , is bringable. It is advantageous if the outer contour of the locking bolt without play in contact with the backdrop can be brought. In particular, it can be provided that the outer contour of the locking bolt can be brought into contact with a contour of the backdrop. By providing a locking bolt leading bearing element with the described adjustability, the locking game can be reduced / reduced or canceled.

Advantageous embodiments are claimed in the subclaims and are explained in more detail below.

For reasons of a simpler installation and / or a reduced storage, it is advantageous if the bearing element and the locking bolt are provided ready for assembly as an assembly. In that regard, it can be provided that the bearing element is formed as a sleeve, within which the locking bolt is mounted axially movable. With regard to the object of the invention, it is particularly advantageous if the locking bolt is mounted axially movable and free of play within the sleeve. The term "axially" refers to a central axis of the locking bolt. Alternatively, the locking bolt can also be moved in the axial direction of the rotational movement of the rotor relative to the stator. It may be particularly advantageous to provide the central axis of the locking bolt parallel to the axis of rotation of the relative rotation of the rotor to the stator.

In order to simplify the mounting of the bearing element in the rotor, it can be provided that the bearing element is rotatably inserted into the rotor, or that the bearing element is rotatably mounted in the rotor.

It should be noted at this point that it is subordinate to the function of this invention whether the locking bolt is provided on the rotor and the link on the stator, or whether the locking bolt is provided on the stator and the link on the rotor. In this respect, the terms "stator" and "rotor" can be interchanged in the claims, for example, for reasons of design considerations, ie a kinematic reversal must be included.

It is advantageous to support the bearing element without play in the rotor. For the purpose of facilitated adjustability can be provided to guide the locking bolt in the bearing element eccentric. The term "eccentric" refers to a distance between adjusting the adjustment and an effect of the adjustment. In other words, the term "eccentric" refers to a distance between a bearing member longitudinal direction and a locking bolt longitudinal direction. A bearing element with eccentrically guided locking bolt is also referred to as "eccentric bearing element".

In order to limit the rotational freedom of rotation of the rotor to the stator in both directions of rotation structurally simple, a second locking bolt can be provided to limit the rotor to the stator at least in a second direction of rotation when Inkontaktgelangen with a second link. For example, in order to achieve a rapid meshing of the locking bolt or the locking bolt, it can be provided that the camshaft adjuster can be locked in a center locking position.

The adjustment of the bearing element in the rotor (or in the stator) can be provided in various ways. For example, the adjustment of the bearing element in the rotor can be automatically provided, for example, by a spring. It can also be provided that the adjustment of the Bearing element is made manually in the rotor. In particular, in manual adjustment of the adjustment element in the rotor during assembly, it is expedient to maintain the adjusted adjustment of the bearing element in the rotor. In this respect, it can be provided that the bearing element can be fixed in the rotor in different positions.

For the purpose of facilitating assembly of the bearing element can be provided that a movement for adjusting the adjustment of the bearing element and a movement for fixing or fixing the adjustment of the bearing element are separated from each other or independent. In other words, it can be provided that a movement for adjusting the position of the bearing element in the rotor and a movement for fixing or for fixing the position of the bearing element in the rotor are separated from each other or independent. Insofar it can be provided that the bearing element is designed so that it is adjustable by rotation with respect to its position in the rotor, and that the bearing element or the adjustment of the bearing element / the position of the bearing element in the rotor by a movement in the axial direction of the bearing element is determinable.

Furthermore, various ways of setting the adjusted adjustment of the bearing element may be provided. Thus, it can be provided that the adjustment of the bearing element is firmly bonded, in particular by means of gluing or soldering or welding. Thus, it can further be provided that the adjustment of the bearing element is non-positively fixed, for example. By means of longitudinal compression or transverse pressing. Furthermore, it can be provided that the adjustment of the bearing element can be fixed in a form-fitting manner, for example by means of a fixing section of the bearing element and / or of the rotor (or stator). Furthermore, it can be provided that the bearing element and / or the rotor (or stator) is designed so that the bearing element is cohesively, non-positively and / or positively locked in its position on the rotor. The position of the bearing element on the rotor can be fixable, for example, by means of the shape of the bearing element and / or the shape of the rotor (or the stator) and / or by means of the choice of material of the bearing element and / or the rotor (or the stator). The adjustment of the bearing element can be determined or fixed by a combination of the aforementioned possibilities. It may be inexpensive that the fixing portion of the bearing element is geometrically and / or materially prepared for being pressed into the rotor (or stator), and that a portion of the rotor (or stator) is geometrically and / or materially prepared for press-fitting the fixing portion is designed. For example, the fixing portion may include hardened metal. For example, the fixing portion may include at least one protrusion, such as at least one tooth. For example, the area of the rotor (or stator) prepared for press-fitting the securement portion may include a soft or relatively ductile metal. For example, the area of the rotor (or stator) prepared for press-fitting the fixing portion may provide a recess which receives plastically deformed or "bulging" material by the press-fitting. As a result, it can be achieved that this "bulging" material does neither impair an operational or function of the camshaft adjuster, nor does it have to be removed in the course of assembly.

It makes economic sense to use for the purpose of setting the adjustment of an otherwise conventional construction element. It is particularly easy to install when an external toothing is provided on the bearing element, and on the rotor an internal toothing is provided, which are prepared for meshing. The two gears are suitably sized. It should be noted at this point that the terms external teeth and internal teeth are not intended to imply a complete toothed ring, but that it may be sufficient if one of these teeth a plurality of teeth, corresponding to the usual adjustment range, and the other teeth only a single tooth are provided comprehensively. For example, if the adjustment is set by at most 180 ° by turning the bearing member (the usual adjustment range assumed for this example), it may be sufficient to provide a semicircle of teeth (corresponding to the usual adjustment range) and a single tooth on the rotor on the bearing member ,

In order to allow setting and / or setting the adjustment of the bearing element inexpensively with conventional means of assembly, a Werkzeugingreifkontur may be provided on the bearing element (or on the bearing elements respectively). As a tool-engaging contour is in particular a screwdriver contour such as a slot-shaped recess, a cross-shaped recess, a multi-or hexagonal recess or a star-shaped recess into consideration.

A spring may be kinematically provided between the bearing element and the locking bolt, which is designed and dimensioned such that it can extend the locking bolt (repeatedly) into a locking position out of the bearing element. As a result, a securing function of the locking bolt can be ensured, since a prestressed spring can be secured in the case of a non-locking spring. Existence of a hydraulic restraining force, for example, can automatically act to extend the locking bolt.

In particular, a bottom may be provided on the optionally sleeve-shaped or bush-shaped bearing element, in which the tool-engaging contour is introduced or from which the tool-engaging contour is excluded. Such a floor also has the advantage that the optionally provided spring for extending the locking bolt in the locking position on the ground can be supported.

Since tight tolerances usually require high manufacturing costs, it may be advantageous to allow a particularly wide adjustment range of the adjustment. In this respect, a two-stage eccentricity can be provided. A two-stage eccentricity means that the locking bolt is guided eccentrically in an inner bearing element, and that the inner bearing element is guided eccentrically in an outer bearing element. In this case, it can be provided that an adjustment of the inner bearing element is independent of an adjustment of the outer bearing element adjustable and / or fixable. In general terms, it can thus be provided that a first bearing element guiding the locking bolt and a second bearing element supporting the first bearing element are each provided so that an outer contour of the locking bolt can be brought into contact with the link. For such a multi-stage principle of two bearing elements, all the aforementioned developments (or a selection thereof) can be provided on one or in each case one or more of the bearing elements.

It may be advantageous, for example, for space reasons and / or for lighter weight, a fluidic force for unlocking or ventilation or generally for moving the locking bolt in the bearing element be advantageous in / on the bearing element, a fluidic connection between a Locking bolt at least partially receiving (inner) region of the bearing element and the rotor (or stator) design provide. It can therefore be provided, for example, a recess in a Lagerelementwandung or sleeve wall. Furthermore, a plurality of recesses of the bearing element wall or sleeve wall, up to a latticed portion of the bearing element wall or sleeve wall, may be provided. This recess may also be designed as a transverse opening, hydraulic medium through-opening or as a hydraulic medium through-channel. In other words, such a recess is advantageous, for example, for an oil feedthrough, for example in order to act when a center lock is implemented or to act efficiently when a chamber supply is switched on / off.

It can also be provided in / on the rotor (or in / on the stator) a channel in the circumferential direction of the bearing element, wherein the channel is open to the bearing element. In this way, it can be ensured in a structurally simple manner that a fluid located in the channel can be fed to the bearing element independently of a position of the bearing element.

Furthermore, this invention relates to a timing drive with a phaser as described above.

Moreover, this invention relates to an internal combustion engine with a timing drive as described above.

In other words, the object is achieved in that it is possible to adjust the locking clearance by using a bushing which has an eccentricity between its outer diameter and its inner diameter (eccentric bushing). For this purpose, the locking piston in the socket and the socket can be provided in a locking bore. By rotating the bush, the position of the locking piston can be adjusted to a locking link. After adjusting the locking clearance, the position of the bushing can be fixed. The socket is thus guided in the rotor (or stator). The locking piston is thus guided in the socket. The position of the locking piston to a backdrop can be changed by turning the socket. The bush can be fixed by adjusting the locking clearance, for example, by means of a press fit, a form fit, gluing or the like. It may also be possible to connect the eccentric bush together with the locking piston and a locking spring to a locking unit, which can be supplied as an assembly of the (camshaft) Verstellermontage. According to one embodiment of the invention, it is also possible to use two eccentric bushings to allow an even greater locking clearance compensation.

The invention will be described in more detail below with the help of several embodiments. Show it:

1 1 a top view of a phaser according to a first embodiment of the invention, with the markings of various sectional views used below,

2 a cross-sectional view of the camshaft adjuster in the direction of the II marked line in 1 .

3 a cross-sectional view of the camshaft adjuster in the direction of the III marked line in 1 .

4 an enlarged view of the designated IV area 3 .

5 a cross-sectional view of the camshaft adjuster along the line marked V in FIG 1 .

6 an enlarged view of the marked area with VI 5 .

7 a perspective view of a sleeve of the camshaft adjuster,

8th a perspective view of the sleeve of the camshaft adjuster,

9 a bottom view of the sleeve of the camshaft adjuster,

10 a cross-sectional view of the camshaft adjuster along the line marked with X from 1 .

11 an enlarged view of the marked XI area 10 .

12 a cross-sectional view along the marked XII line 1 .

13 an enlarged view of the designated area XIII 12 .

14 a perspective view of a second, which now has hydraulic medium passageways in its side wall,

15 the sleeve off 14 in a perspective view from the other side, and

16 a cross-sectional view of the camshaft adjuster according to the second embodiment along a section line, which is the V marked line 1 according to the first embodiment.

In other words, that shows 1 an overview of the positions of the individual sectional views of a camshaft adjuster for the 2 to 6 and 10 to 13 , In other words, they show 2 to 4 a contact position of a locking piston to a locking link, wherein the locking piston rests against the locking link. In other words, they show 5 and 6 an eccentric bushing inserted in a rotor, in which a locking piston is guided, wherein the bushing projects axially beyond the rotor, in order to allow a rotation of the bushing. In other words, they show 7 to 9 an eccentric bush, in which a bottom, a slot-shaped tool-engaging contour for a twisting and a tooth-shaped rotation are formed. At this point, it should be mentioned that the bush can also be designed as a through bush without bottom and / or without sprocket as anti-rotation. In this connection, attention is drawn to the possibility of anti-rotation by means of a press fit. In other words, they show 10 and 11 a state before setting the locking clearance. In other words, they show 12 and 13 a state after adjusting the locking clearance, wherein the eccentric bush is completely received in the rotor to be secured by means of the toothing against rotation. In other words, that shows 14 a variant of the sleeve in one too 8th similar representation, wherein the sleeve has hydraulic medium passageways in its side wall. In other words, that shows 14 in the 13 shown sleeve from another side. In other words shows 16 the sleeve of 14 and 15 in a fitted condition.

The figures are merely schematic in nature and are only for the understanding of the invention. The same elements are provided with the same reference numerals. Elements of the individual embodiments can be interchanged.

When in the 1 shown representation of a camshaft adjuster 1 According to a first embodiment of the invention with a stator / a stator / a stator 2 , a rotor / rotor device / device 3 , a single locking device 4 and an eccentric locking device 5 The lines denoted by II, III, V, X and XII show sectional views with views in the respective direction of the arrow. Here are the single locking device 4 and the eccentric locking device 5 in the rotor 3 stored.

Like from the 2 . 3 . 5 . 10 and 12 can be seen, includes the stator 2 a stator base plate 6 and a stator main body 7 , The stator base plate 6 and the stator body 7 are representative of an unspecified variety of stator-resistant components. For the purposes of this invention, it is also conceivable that the stator 2 is formed in one piece.

The rotor 3 includes a rotor body 8th , The rotor body 8th is representative of an unspecified variety of rotor-resistant components. For the purposes of this invention, it is also conceivable that the rotor 3 is formed in one piece. The stator 2 and the rotor 3 are rotatable about a common central axis of rotation, which may be referred to as the main axis and perpendicular to the plane of the 1 runs.

The in the 2 . 3 and 4 illustrated single locking device 4 includes a locking bolt 9 , a locking spring 10 and a lock holder 11 , The single locking device 4 is in a recess of the rotor 3 formed lock receptacle 12 completely absorbable. By a spring force of the locking spring 10 can the locking bolt 9 from the locking receptacle 12 as in particular in 4 shown cantilevered. In the stator base plate 6 is a locking link realized as a locking engagement recess 13 educated. The locking mechanism 13 can also be short as a backdrop 13 be designated. As in particular from the enlarged view of 4 can be seen, an outer contour of the locking bolt 9 in the circumferential direction of the camshaft adjuster 1 in a locking position on the locking link 13 or a contour of the backdrop 13 abutment, ie be brought backlash with this in Appendix. As a result, a direction of rotation of the rotor 3 to the stator 2 limited.

Like from the 5 . 10 . 11 . 12 . 13 and in particular 6 can be seen includes the eccentric locking device 5 an eccentric sleeve 14 , a locking spring 15 and a locking bolt 16 , The eccentric locking device 5 is in a recess of the rotor 3 formed lock receptacle 25 completely absorbable. In particular, the locking spring 15 and the locking bolt 16 in the eccentric sleeve 14 received. The eccentric sleeve 14 So store the locking bolt 16 and thus provides the bearing element 14 according to the invention. The eccentric sleeve 14 Can also be used as a locking bolt bearing element 14 , as an eccentric bush 14 , as a sleeve 14 or as a socket 14 be designated. The eccentric sleeve 14 is sized to a length 17 the eccentric sleeve 14 not larger than a thickness 18 of the rotor body 8th is. Alternatively, it is also possible that the length 17 less than the thickness 18 is. Is the length 17 less than the thickness 18 so it is not necessary for the locking spring 15 and the locking bolt 16 completely in the eccentric sleeve 14 are receivable, however, it is provided that the locking bolt 16 so far in the rotor 3 it is receivable that the locking bolt 16 when the lock is released, not over the rotor body 8th or the rotor 3 protrudes. In the stator base plate 6 a realized as Verriegelungseinspurausnehmung locking link 19 similar to the locking link 13 educated. The locking mechanism 19 can also be short as a backdrop 19 be designated.

As in particular from the enlarged view of 13 can be seen, an outer contour of the locking bolt 16 in the circumferential direction of the camshaft adjuster 1 in a locking position on the locking link 19 or a contour of the backdrop 19 abutment, ie be brought backlash with this in Appendix.

As a result, a direction of rotation of the rotor 3 to the stator 2 limited. A respective outer surface of the locking bolts 9 and 16 or at least a portion of the respective outer surface thus forms the respective outer contour of the locking bolt 9 and 16 ,

Like from the 1 It can be seen that the positions of the scenes 13 and 19 in the stator 2 and the positions of the locking receptacles 12 and 25 in the rotor 3 chosen so that the camshaft adjuster 1 lockable in center lock. Conveniently, the locking gates 13 and 19 connected so that a hydraulic means can flow between them.

In the 5 and 10 and especially in their enlarged detail 6 and 11 is a gap between the locking bolt 16 and the locking link 19 recognizable. This gap represents the locking game, which is to reduce or cancel tasks.

The following is on the design of the sleeve 14 and the adjustment of the lock received.

The sleeve 14 is in the 7 to 9 shown. The eccentric sleeve 14 has an outer circumference 20 with an outer circumferential center 21 , an inner circumference 22 with an inner circumferential center 23 and an eccentricity 24 between the outer circumferential center 21 and the inner circumferential center 23 on. Thus, the thickness of the wall of the eccentric sleeve changes 14 continuously. Will the locking bolt 16 in the eccentric bush 14 to the inner circumference 22 guided, as shown in this embodiment, so the position of the locking bolt 16 relative to the outer circumference 20 by the eccentricity 24 established. This is the locking bolt 16 free of play in the eccentric sleeve 14 guided. The eccentric sleeve 14 is with the outer circumference 20 in the lock receptacle 25 , which as a recess of the rotor body 8th is formed in the rotor 3 added. Thus, the position of the locking bolt 16 about the eccentricity 24 in the lock receptacle 25 by turning the eccentric sleeve 14 relative to the rotor body 8th continuously adjustable.

At the eccentric sleeve 14 is also a sleeve bottom 26 educated. More specifically, the case bottom 26 not on the side or location of the eccentric sleeve 14 formed, on which the locking bolt from the eccentric sleeve 14 can be extended in the locked position. In the case bottom 26 is a recess 27 educated. The recess 27 Can also be used as a tool-engaging contour 27 be designated. On the outer circumference 20 is in the area of the sleeve bottom 26 furthermore an external toothing 28 educated. In the rotor body 8th is also an internal toothing 29 formed, which to the external toothing 28 corresponds.

During assembly of the camshaft adjuster 1 is the locking game between the backdrop 19 and the locking bolt 16 adjustable as follows. The rotor 3 becomes a stator 2 twisted that lock latch 25 with the recess of the backdrop 19 flees. Then the eccentric locking device 5 in the lock receptacle 25 partially inserted. In this case, the thick side of the wall of the eccentric sleeve 14 in the direction of the locking link 19 so that between the locking link 19 and the locking bolt 16 there is a gap. Furthermore, the eccentric locking device 5 Although so far in the locking receptacle 25 pushed in that the locking bolt 16 over the rotor body 8th to the area of the locking link 19 cantilevered, but only so far that the external teeth 28 not with the internal teeth 29 got in contact. With the help of the tool-engaging contour 27 and a suitable tool (not shown) such as a screwdriver is the eccentric sleeve 14 twisted so far until the locking bolt 16 with the locking link 19 comes into contact. At the same time lies the locking bolt 9 with the locking link 13 in abutment, so the locking game is just lifted. Now the eccentric sleeve 14 just turned back so far until the external teeth 28 in the internal toothing 29 is inserted and then the eccentric sleeve 14 completely in the rotor body 8th pushed in, leaving the external teeth 28 with the internal toothing 29 into a set the adjustment setting Verzungsungskontakt passes. The rotational movement for adjusting the adjustment and the insertion movement for setting the adjustment are mechanically independent of each other.

To the locking bolts 16 and 9 axially into the locking receptacles 12 and 25 To proceed, that is, to move the locking bolt from the locking position into a (camshaft) adjustment position, a hydraulic means such as, an oil in the locking gates 13 and 19 forming recesses introduced and so long or so far pressurized until the spring forces of the locking springs 10 and 15 are sufficiently overcome. The camshaft adjustment position of the locking bolts 9 and 16 is a position along its extension direction, in which the locking bolt 9 and 16 so far in the rotor 3 are added that these with the locking frames 13 and 19 of the stator 2 can not get into contact. The camshaft adjustment is also referred to as adjustment position, non-blocking position, release position or operating position.

If this pressurization ends with hydraulic pressure, so the locking bolts 9 and 16 into the scenes 13 and 19 forming recesses of the stator main body 7 projecting axially or extended, ie moved from the adjustment position into the locking position as soon as the locking receptacles 12 and 25 are sufficiently aligned with said recesses. To a Einspurverhalten the locking bolt 9 and 16 to improve, these are locking bolts 9 and 16 with a Einspurfase 30 Mistake.

In this respect, a releasable lock between the stator 2 and the rotor 3 realized at reduced or canceled locking game.

In the 14 to 16 is the one variant of an eccentric sleeve 14 shown without locking bolt located therein.

The sleeve / eccentric sleeve 14 has transverse openings / hydraulic medium passage openings or hydraulic medium passageways 31 on, as they are for example for an oil passage advantage, such as to act efficiently in the realization of a central locking or on / off a chamber supply. The transverse openings can also be constructed like a grid of a plurality of rods, since no particularly large forces act.

Furthermore, the eccentric sleeve 14 also in the stator 2 be present if, for example, the locking in the radial direction in the rotor 3 takes place as in the DE19860025 shown. The optional locking unit can also be made of the components piston, spring, eccentric sleeve 14 and cartridge.

The tooth contour on the eccentric sleeve 14 Depending on the design, it does not necessarily require a counter contour, but it can also generate it by plastic deformation of the counterpart.

LIST OF REFERENCE NUMBERS

1

 Phaser

2

 stator

3

 rotor

4

 Simply locking device

5

 Exzenterverriegelungseinrichtung

6

 stator base

7

 stator base

8th

 Rotor body

9

 locking bolt

10

 locking spring

11

 lock holder

12

 locking receptacle

13

 scenery

14

 eccentric

15

 locking spring

16

 locking bolt

17

 length

18

 thickness

19

 scenery

20

 outer periphery

21

 Outer circumference center

22

 inner circumference

23

 Inner circumferential center

24

 eccentricity

25

 locking receptacle

26

 sleeve base

27

 Werkzeugeingreifkontur

28

 external teeth

29

 internal gearing

30

 chamfer

31

 Hydraulic fluid passageway

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012209027 A1 [0002]
• DE 19860025 [0067]

Claims (10)

Hydraulic camshaft adjuster ( 1 ) of the wing cell type, with a stator ( 2 ) and a rotor ( 3 ), wherein the rotor ( 3 ) relative to the stator ( 2 ) is rotatably mounted, and wherein at least one locking bolt ( 16 ) is provided to the Inkontaktgelangen with a backdrop ( 19 ) the rotor ( 3 ) to the stator ( 2 ) at least in one direction of rotation, characterized in that a locking bolt ( 16 ) leading bearing element ( 14 ) is adjustable so that an outer contour of the locking bolt ( 16 ) in contact with the scenery ( 19 ) can be brought. Camshaft adjuster ( 1 ) according to claim 1, characterized in that the bearing element ( 14 ) is formed as a sleeve, within which the locking bolt ( 16 ) Is mounted axially movable. Camshaft adjuster ( 1 ) according to one of claims 1 to 2, characterized in that the bearing element ( 14 ) rotatable in the rotor ( 3 ) is introduced. Camshaft adjuster ( 1 ) according to one of claims 1 to 3, characterized in that the locking bolt ( 16 ) in the bearing element ( 14 ) is guided eccentrically. Camshaft adjuster ( 1 ) according to one of claims 1 to 4, characterized in that a second locking bolt ( 9 ) is provided to the Inkontaktgelangen with a second backdrop ( 13 ) the rotor ( 3 ) to the stator ( 2 ) limit at least in a second direction of rotation. Camshaft adjuster ( 1 ) according to one of claims 1 to 5, characterized in that the camshaft adjuster ( 1 ) is lockable in a center locking position. Camshaft adjuster ( 1 ) according to one of claims 1 to 6, characterized in that the bearing element ( 14 ) in the rotor ( 3 ) is fixable in different positions. Camshaft adjuster ( 1 ) according to one of claims 1 to 7, characterized in that the bearing element ( 14 ) is designed so that it is adjustable by rotation, and the bearing element ( 14 ) is fixable by a movement in the axial direction. Camshaft adjuster ( 1 ) according to one of claims 1 to 8, characterized in that the bearing element ( 14 ) cohesively, positively and / or positively in its position on the rotor ( 3 ) is determinable. Camshaft adjuster ( 1 ) according to one of claims 1 to 9, characterized in that on the bearing element ( 14 ) an outer toothing ( 28 ) is provided, and on the rotor ( 3 ) an internal toothing ( 29 ), which are prepared for meshing.

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