WO2015086157A1 - Arbre à cames réglable - Google Patents

Arbre à cames réglable Download PDF

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Publication number
WO2015086157A1
WO2015086157A1 PCT/EP2014/003327 EP2014003327W WO2015086157A1 WO 2015086157 A1 WO2015086157 A1 WO 2015086157A1 EP 2014003327 W EP2014003327 W EP 2014003327W WO 2015086157 A1 WO2015086157 A1 WO 2015086157A1
Authority
WO
WIPO (PCT)
Prior art keywords
latching
camshaft
spring clip
spring
clip
Prior art date
Application number
PCT/EP2014/003327
Other languages
German (de)
English (en)
Inventor
Martial DANTHOIS
Markus NIEDERLECHNER
Jörg SCHÄTZLE
Mario Büchel
Original Assignee
Thyssenkrupp Presta Teccenter Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thyssenkrupp Presta Teccenter Ag filed Critical Thyssenkrupp Presta Teccenter Ag
Publication of WO2015086157A1 publication Critical patent/WO2015086157A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/02—Valve drive
    • F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
    • F01L1/047—Camshafts
    • F01L2001/0471—Assembled camshafts
    • F01L2001/0473—Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
    • F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
    • F01L13/0036—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction
    • F01L2013/0052—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction with cams provided on an axially slidable sleeve

Definitions

  • the present invention relates to an adjustable camshaft and a locking element for the adjustable camshaft.
  • the invention relates to an adjustable camshaft for an internal combustion engine having a extending in the direction of a rotation axis carrier shaft, wherein on the carrier shaft at least one cam package is slidably received in the direction of the axis of rotation, wherein the cam package on the carrier shaft in at least two axial locking positions can be latched, and wherein at least one latching element and at least one counter-latching means corresponding thereto are provided in such a way that the latching element can be latched into the latching positions in the counter-latching means in order to form the latching positions.
  • Adjustable camshafts often have a switching device in which a spring-loaded ball and two or more grooves corresponding to the ball locking in different locking positions is made possible.
  • the ball can engage in one of the grooves and thereby define a specific axial position of a cam package relative to a carrier shaft.
  • This detent mechanism must have a hole or any suitable cavity to accommodate the ball and an elastic spring. By means of the elastic spring, the ball is biased.
  • the patent DE 196 11 641 C1 describes a trained as a hollow shaft carrier shaft of a camshaft on which a spring element is arranged with a ball which engages in a corresponding locking element receiving a cam.
  • the published patent application DE 10 2011 084 043 A1 describes a sliding cam system with latching means which are formed by a spring and a ball.
  • the invention includes the technical teaching that the locking element is designed as a spring clip, which has a fastening portion and a elastically prestressable latching portion, wherein the fixing portion is arranged for stationary arrangement of the spring clip between the support shaft and the cam package, and wherein the latching portion can be latched in the latching positions.
  • the locking element is designed as a spring clip, which has a fastening portion and a elastically prestressable latching portion, wherein the fixing portion is arranged for stationary arrangement of the spring clip between the support shaft and the cam package, and wherein the latching portion can be latched in the latching positions.
  • the counter-latching means may for example be designed as a groove or any comparable recess, wherein the counter-latching means may also generally be referred to as a nest.
  • the locking element according to the invention or the spring clip can be mounted at different locations of a camshaft.
  • the mounting position can now be selected in many cases on the carrier shaft, even with hollow shafts. Also, it is no longer necessary with hollow shafts to press additional sockets in the hollow shaft in order to provide a receptacle for any ball or spring can.
  • Bushings in hollow carrier shafts are no longer required in connection with the spring clip according to the invention.
  • the function previously taken over by a ball can be taken over by the spring clip itself.
  • the spring clip is designed to ensure both a positive connection and a traction.
  • a spring clip is preferred to understand a one-piece or one-piece element which is at least partially resilient, and which is adapted to positively lock in a locking groove or any other shape contour or to lock a cam package relative to a support shaft in the axial direction
  • a spring clip can be designed as an element from the group comprising the following elements: a displacement switching element, a locking element, a spring plate, a spring insert, in particular spring steel insert, a spring clip, a spring clip, a spring V-part, a snap spring, a snap spring with screw-on opening, or even a spring rivet.
  • the latching portion has a bent portion, in particular a corrugation, which (r) can be latched in the latching positions.
  • a bent portion can ensure that latching can be flexibly adjusted. In other words, the course of a locking force can be adjusted by means of a bent portion. Furthermore, a latching force can be passed from the bent portion in the mounting portion of the spring clip.
  • a bent portion also provides the advantage that the locking force can be transmitted over a comparatively large area.
  • the spring clip is adapted to provide a line or surface-shaped contact surface for transmitting a latching force.
  • the latching portion on a free-standing end can ensure high resilience of the spring clip, even if the spring clip is made of a very hard or very robust, durable material.
  • the freestanding end allows a spring travel, without any movement of the locking portion directly affects the mounting portion.
  • latching connections which require a relatively large relative movement between the locking element receptacle and the latching portion
  • the free-standing end provides the advantage that the attachment portion does not have to be moved or not noticeable.
  • the latching portion and the attachment portion form a strip-like latching element, in particular a sheet-metal strip, preferably uniform width.
  • a strip-like or strip-shaped latching element can be arranged in a simple or cost-effective manner in a corresponding locking element receptacle.
  • a simple milled recess can serve as a latching element receptacle which can be introduced with a milling tool which only has to be moved linearly in one direction.
  • the assembly can be simplified because the locking element does not have to be coupled in a specific orientation with the locking element receptacle.
  • the strip-like geometry also provides the advantage that the material saving several locking elements can be made of a sheet or similar semi-finished product.
  • the spring clip is adapted to forward a latching force received by the latching portion in at least two directions, in particular two opposite directions, to the attachment portion.
  • a relatively soft material can be used, by means of which the elasticity can also be provided by a damping in the material itself.
  • a symmetrical configuration for example by a latching section, which is arranged centrally between two fastening sections, can also ensure that the same latching force can be applied in opposite directions of movement.
  • a symmetrically constructed spring clip has a corrugation, which is constructed symmetrically on both sides, ie has the same pitch and / or the same radius of curvature.
  • the fastening section has at least two fastening straps and / or at least one undercut section and / or one U-shaped or V-shaped profile section and / or at least one mounting opening.
  • fastening tabs By means of fastening tabs, assembly can be carried out in a very simple manner, in particular by the spring clip being inserted only into a corresponding catch element receptacle, in particular into corresponding receiving grooves.
  • An undercut section may alternatively or additionally ensure that the spring clip is particularly securely connected to the carrier shaft or cam assembly.
  • the spring clip may also have two undercut portions, in particular if it has a comparatively large length, which allows the undercut portions can be bent correspondingly to engage around corresponding projections on the locking element receptacle.
  • a U-shaped or V-shaped profile section can simplify assembly even further, in particular by merely pressing in the spring clip into a receiving opening corresponding thereto.
  • the profile section then engages in the receiving opening, and at the same time an attachment can be ensured.
  • the profile section may also provide at least a portion of a resilient portion for resilient cushioning a detent movement.
  • a mounting opening in particular a bore, can be provided in the fastening section.
  • the attachment portion at least in sections on a flat contact surface, which is adapted to rest against a corresponding planar contact surface portion.
  • the flat bearing surface provides the advantage that a detent force from the locking portion on the mounting portion and the attachment portion can be largely largely forwarded to a locking element recording. In this way it can be ensured that the spring clip does not twist or warp, which also brings with it a higher level of security that the spring clip does not detach itself from the catch element receptacle or lift off from the catch element receptacle.
  • the spring clip is formed as a bending stamped part.
  • a bent stamped part provides the advantage of cost-effective production and the ability to influence the geometry of the spring clip in a flexible manner.
  • the bent portion or corrugation may be introduced by a single bending punching operation along with any tabs or undercut portions.
  • the spring clip is arranged on the carrier shaft or on the cam package.
  • a spring clip according to the invention can be arranged in a flexible manner, depending on the application, on the carrier shaft or on the cam package. Even with hollow shafts an arrangement on the support shaft is possible, in particular thanks to a flat design of the spring clip, especially in a flat mounting portion.
  • a latching element for an adjustable camshaft, in particular a camshaft according to the invention, wherein the latching element is set up, a cam package of the camshaft relative to a carrier shaft of the camshaft in at least two axial latching positions to position, with the locking element as a Spring clip is formed, which has a fixing portion and an elastically prestressable latching portion, wherein the fixing portion is arranged for stationary arrangement of the spring clip, and wherein the latching portion can be latched in the latching positions.
  • the locking element is designed as a one-piece spring clip and arranged to apply for positioning the carrier shaft relative to the cam package of the required biasing force independently, so without further spring element.
  • the locking element is formed self-springing in itself.
  • the spring clip according to the invention also allows a simple method of assembly, in particular only two-stage assembly, namely by the two steps: attaching the spring clip on the cam package or the carrier shaft; and mounting the camshaft by connecting the cam package to the carrier shaft and positioning the cam package relative to the carrier shaft in one of at least two axial detent positions.
  • the spring clip is made in one piece, so that it is not necessary to retain a loaded by means of a separate spring element ball in any bore without the ball is thrown by the spring element. Rather, the spring clip according to the invention can be mounted in a largely relieved, not biased state.
  • Figure 1a in a schematic representation in section a camshaft with a locking element according to an embodiment of the invention
  • Figure 1 b in a schematic representation of an adjustable camshaft with a locking element according to another embodiment of the invention
  • FIG. 2b in several views a camshaft with a locking element according to Figure 2a;
  • FIG. 3a shows in a sketch an installation possibility for a latching element according to an embodiment of the invention, in particular according to the embodiment shown in detail in Figure 3c;
  • Figure 3b in a sketch an installation option for a locking element according to another embodiment
  • Figure 5 is a sketch of a camshaft with a locking element according to another embodiment of the invention.
  • FIG. 6a in a sketch, a camshaft with a locking element according to another embodiment of the invention
  • Figure 6b in several views Details of the embodiment shown in Figure 6a;
  • FIG. 8b shows several views of the detail shown in FIG. 8a
  • an adjustable camshaft 1 which has a carrier shaft 11 which can rotate about an axis of rotation 10.
  • a cam package 12 can be moved, on which counter-latching means 16 are provided, which cooperate with a latching element 15.
  • the latching element 15 can be arranged in a latching element receptacle 20 on the carrier shaft 11.
  • the detent element receptacle 20 has a pocket or a release volume 24 into which or which the detent element 15 can spring into.
  • the latching element 15 has a latching portion 15a which cooperates with circumferential latching grooves 17, and a fastening portion 15b which cooperates with receiving grooves 21 of the latching element receptacle 20.
  • FIG 1 b is a structure as shown in Figure 1a, but with a different mounting position.
  • the locking element 15 is now not attached to the support shaft 1 1, but on the cam package 12, on which also the locking element receptacle 20 is formed with corresponding grooves 21.
  • the circumferential locking grooves 17 are formed as a counter-locking means 16 on the support shaft 1 1.
  • a locking element 15 is shown, which can be described as a spring insert, in particular spring steel insert.
  • the locking element 15 is referred to as a spring clip.
  • the latching portion 15a of the spring clip 15 has a bent portion 15a.1 or a corrugation, on which a free-standing end 15a.2 is provided.
  • the attachment portion 15b has attachment tabs 15b.1, which are aligned at least approximately at an angle of 90 ° relative to a flat contact surface 15b.5 of the attachment portion 15b.
  • the bent portion 15a.1 passes over a resilient portion 15a.3 in the mounting portion 15b.
  • the bent portion 15a.1 is arranged above a material recess 15a.4.
  • the latching section 15a is formed of material which has been punched out or bent out from the fastening section 15b during the formation of the material recess 15a.4.
  • the spring insert 15 is also shown in a perspective view, wherein a variant is that the spring insert 15 has no tabs, but a flat bottom. The underside is completely flat.
  • the spring insert 15 can be mounted in a particularly simple manner and is also particularly easy to produce.
  • the locking element receptacle need only have a small depth.
  • Such a flat Federeinlegeteil 15 is particularly suitable in conjunction with hollow shafts (a structural weakening of the hollow shaft can be minimized) or the requirement of a weight-optimized locking connection.
  • an adjustable camshaft 1 is shown, wherein the mounting position of the spring insert 15 with respect to a support shaft 1 1 and a cam 12 of the camshaft 1 is shown.
  • the carrier shaft 1 1 is designed as a hollow shaft.
  • the spring insert part 15 is arranged in a latching element receptacle 20 on the hollow shaft 1 1, which is designed as a single flat receiving groove 21. Due to the design of the locking portion 15a with a free end, a pocket or a release volume (spring travel volume) below the spring insert part 15 is not necessarily required. This allows a particularly flat locking element receptacle 20.
  • the locking groove 18 is (in contrast to in Fig. 1 a and 1 b shown groove 17) is not necessarily designed as a circumferential groove.
  • the spring insert 15 shown in FIGS. 2a and 2b may have a resilient portion 15a.3 extending from the bent portion 15a.1 in the plane of the attachment portion 5b toward one of the tabs 15b.1, as indicated by the dashed line .
  • the dashed line indicates line-shaped recesses, which may optionally be incorporated into the flat bearing surface 15b.5, the length of which can be selected depending on the requirements of the resilient properties of the latching portion 15a.
  • the spring characteristic of the locking portion 15 can be adjusted in a particularly simple manner, in particular also largely independent of the material of the spring clip 15th
  • a spring clip 215 which has a latching portion 215a with a bent portion 215a.1 and a free-standing end 215a.2.
  • the freestanding end 215a.2 engages in a latching element receptacle 120, and at this point of engagement, a pocket 124 is provided, which provides a release volume for the latching portion 215a.
  • the latching portion is connected via a resilient portion 215a.3 with a mounting portion 215b, wherein the resilient portion merges into a planar contact surface portion 215b.5, which merges into an undercut portion 215b.2, which engages in a corresponding receiving groove 121.
  • the undercut portion is formed as an obliquely arranged tab, which has been bent at an angle greater than 90 °, in particular in the range of 110 to 150 °. Due to the angle greater than 90 °, the spring clip 215 can be clamped to the locking element receptacle 120, although only a single undercut section 215b.2 is provided.
  • the groove 121 is arranged obliquely accordingly.
  • the planar portion 215b.5 abuts against a corresponding planar abutment surface portion 125.
  • the locking element receptacle 120 is arranged on a base body 1 12.1 of a cam package.
  • an adjustable camshaft 1 is shown in a section in which a spring clip 1 15 is arranged in a locking element receptacle 20.
  • the locking element receptacle comprises a pocket 24 and a planar contact surface portion 25 and a receiving groove 21 and a further receiving groove 21 in conjunction with a Materialaus originallyung for an undercut portion 15b.2 of the spring clip 1 15.
  • the spring clip 1 15 also has a mounting portion with a mounting strap 1 15b. 1 on.
  • the latching portion 1 5a is formed by a curved shaft portion 115a.1 and a resilient portion 1 15a.3.
  • the fastening section 1 15b which has planar contact surface sections 115b.5, adjoins the elastic section.
  • the spring clip 115 may be referred to as a spring clip.
  • the spring clip 115 is also shown in a perspective view. Further, the adjustable camshaft 1 is shown, wherein the mounting position of the spring clip 115 with respect to the support shaft 1 1 and the cam package 12 of the camshaft 1 is shown.
  • the carrier shaft 1 1 is designed as a solid shaft.
  • the spring clip 115 is arranged in a locking element receptacle 20 on the cam package 12, in particular on a separate base body of the cam package 12. Further, the pocket 24 is shown, in which the latching portion or the resilient portion of the spring clip 15 can deflect.
  • FIG. 4 a shows a camshaft with a latching element 315, which may be referred to as a spring clip.
  • the spring clip has two undercut sections 3 5b.2, by means of which the spring clip 315 is attached to a base body 12.1.
  • the main body may be integrally connected to a cam package or be a separate part.
  • the main body has planar abutment surface portions 225 to which corresponding flat abutment surfaces 315b.5 of the spring clip come to rest, which form part of a fixing portion 315b, and which pass in a resilient portion 315a.3, to which a corrugation 315.1 adjacent.
  • the corrugation is symmetrical on both sides of the spring clip or at least formed approximately with the same radius of curvature.
  • the corrugation may deflect into a pocket 224 which provides a clearance volume.
  • the spring clip 315 is also shown in a perspective view. Furthermore, the mounting position of the spring clip 315 is shown in a detail view X corresponding to a detail of an arrangement according to FIG. 3c.
  • the spring clip 315 is arranged in a locking element receptacle 220 on the cam package 12, namely on a separate base body 12.1 of the cam package 12. Furthermore, the pocket 224 is shown, in which the latching portion or the resilient portion of the spring clip 315 can spring.
  • FIG. 5 shows a latching element in the form of a snap-type spring for screwing on.
  • the snap spring 415 is mounted on a support shaft 1 1 1, which is designed as a solid shaft.
  • a pocket 324 is provided, and adjacent the pocket receiving bores 22 are introduced, to which the snap spring 415 can be mounted by means of screws or fasteners 30.
  • the pocket 324 is bounded by a receiving groove 221, in which mounting portions of the snap spring are arranged.
  • a resilient portion 415a.3 is disposed in the pocket 324.
  • the snap spring 415 has in a respective mounting portion mounting holes 15b.4, through which the screws 30 are passed.
  • the snap spring 415 has planar contact surfaces 415b.5.
  • the latching portion of the snap spring is formed as a corrugation 415a.1.
  • the corrugation engages in a corresponding locking groove 118, which forms a counter-locking means 1 16.
  • a locking element receptacle 220 is formed on the support shaft 11 1.
  • Two locking grooves 118 are formed on a base 212.1 of a cam package.
  • FIG. 6 a shows an adjustable camshaft 1, which has a latching element in the form of a spring insert 515.
  • the spring insert part is mounted on a carrier shaft 21 1, in which a locking element receptacle 320 with two receiving grooves 321 and a pocket 424 is formed.
  • the spring insert 515 has two attachment tabs 515 b Secure the spring insert on the carrier shaft.
  • Counter-locking means 216 are formed by circumferential locking grooves 17 and arranged on a base body 312.1 of a cam package.
  • the spring insert 515 has resilient portions 515a.3, which merge into flat contact surfaces 515b.5.
  • a corrugation 515a.1 formed substantially symmetrically on both sides engages in the counter-latching means 216.
  • the spring insertion part 515 is arranged in a milled recess 26, in particular with its attachment section, the milled recess 26 being inserted so deeply into the support shaft 21 1 that the spring insertion part just ends with the outer circumferential surface of the shaft.
  • the spring insert 515 is also shown in a perspective view.
  • the latching portion 515a is formed as a corrugation on both sides.
  • the attachment portion 515b extends just to both sides.
  • the entire spring insert 515 is formed symmetrically on both sides in the direction of the tabs.
  • the spring insert 515 is designed particularly robust, especially since it has no material recesses.
  • the assembly position of the spring insert 515 is shown in a detail view X corresponding to a detail of an arrangement according to FIG. 2b.
  • the mounting position is comparable, however, in this spring insert 515 on the locking element receptacle 320 and the pocket 424 is provided.
  • the carrier shaft 211 is formed as a hollow shaft.
  • locking element receptacle 320 is shown in a separate side view and top view. At this mounting position, the locking element receptacle 320 can be provided in a simple manner on the outer circumferential surface of the carrier shaft 211, in particular milled.
  • a locking element in the form of a spring clip 615 is shown, which has a latching portion 615a with a free-standing end 615.2 and a corrugation 615.1, wherein a resilient portion 615a.3 merges into a mounting portion 615b.
  • a locking element receptacle 420 is formed as a comparatively deep recess or groove to receive the substantially U-shaped locking element.
  • the locking element receptacle 420 is formed in a carrier shaft 31 1.
  • the spring clip 615 can with a special high elasticity are provided, in particular because the locking element receptacle 420 is formed comparatively deep. This allows a long spring travel or a resilient portion 615a.3, which extends over a large portion of the spring clip.
  • the spring clip 615 is also shown in a perspective view. Furthermore, in a detailed view X corresponding to a detail of an arrangement according to FIG. 2b, the mounting position of the spring clip 615 on the carrier shaft 31 1 is shown, wherein the carrier shaft 31 1 is designed as a solid shaft.
  • FIG. 8 a shows a latching element in the form of a spring V-part 715.
  • the spring clip 715 has a V- or U-shaped profile section 15b.3, which engages in a receiving opening 23, wherein the receiving opening in the wall of a hollow shaft designed as a carrier shaft 41 1 is arranged.
  • a fixing portion 715a has a free-standing end 715a.2 and a bent portion 715a.1, and a resilient portion 715a.3 extends from the bent portion via the profile portion 15b.3 to a fixing portion 715b.
  • the attachment portion is arranged in a receiving groove 421 of a locking element receptacle 520.
  • the ends of the fixing portion 715b are formed as flat abutment surfaces 715b.5.
  • the spring V-part 715 is also shown in a perspective view. Furthermore, the assembly position of the spring V-part 715 on the support shaft 411 (hollow shaft) is shown in a detailed view X corresponding to a detail of an arrangement according to FIG. 2b. Furthermore, the arranged on the support shaft locking element receptacle 520 is shown in a separate side view and top view.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un arbre à cames réglable (1) destiné à un moteur à combustion interne et comprenant un arbre porteur (11) s'étendant dans la direction d'un axe de rotation (10). Au moins un ensemble de cames (12) est logé de manière mobile dans la direction de l'axe de rotation (10) sur l'arbre porteur (11). L'ensemble de cames (12) peut être encliqueté sur l'arbre porteur (11) dans aux moins deux positions axiales d'encliquetage, et au moins un élément d'encliquetage (15) et au moins un moyen d'encliquetage complémentaire (16) lui correspondant sont réalisés pour la formation des positions d'encliquetage de telle manière que l'élément d'encliquetage (15) peut être encliqueté dans le moyen d'encliquetage complémentaire (16) dans les positions d'encliquetage. Selon l'invention, l'élément d'encliquetage (15) est réalisé sous la forme d'une bride élastique qui comprend une partie fixation (15b) et une partie encliquetage (15a) précontrainte élastiquement, la partie fixation (15b) étant configurée pour l'agencement à demeure de la bride élastique entre l'arbre porteur (11) et l'ensemble de cames (12), et la partie encliquetage (15a) pouvant être encliquetée dans les positions d'encliquetage. L'invention concerne par ailleurs un élément d'encliquetage (15) de ce type destiné à un arbre à cames (1).
PCT/EP2014/003327 2013-12-13 2014-12-11 Arbre à cames réglable WO2015086157A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013114021.1 2013-12-13
DE102013114021.1A DE102013114021A1 (de) 2013-12-13 2013-12-13 verstellbare Nockenwelle

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Publication Number Publication Date
WO2015086157A1 true WO2015086157A1 (fr) 2015-06-18

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PCT/EP2014/003327 WO2015086157A1 (fr) 2013-12-13 2014-12-11 Arbre à cames réglable

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DE (1) DE102013114021A1 (fr)
WO (1) WO2015086157A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
US20140174248A1 (en) * 2011-06-08 2014-06-26 Thyssenkrupp Presta Teccenter Ag Camshaft and method for producing the camshaft

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Publication number Priority date Publication date Assignee Title
DE102014007189B4 (de) * 2014-05-15 2021-03-18 Audi Ag Ventiltrieb für Gaswechselventile mit Nockenträger- und Grundwellenverzahnung im Rastmittelbereich
US9482122B2 (en) 2014-06-30 2016-11-01 GM Global Technology Operations LLC Detent assembly and a method of assembling the detent assembly
DE102015212687A1 (de) * 2015-07-07 2017-01-12 Mahle International Gmbh Nockenwelle
DE102015212691B4 (de) * 2015-07-07 2022-06-23 Thyssenkrupp Ag Nockenwelle mit Rastelement sowie Verfahren zur Montage einer Nockenwelle

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FR2760261A1 (fr) * 1997-02-28 1998-09-04 Renault Dispositif de synchronisation pour boite de vitesses
DE10006347C1 (de) * 2000-02-12 2001-08-16 Daimler Chrysler Ag Druckstück einer Synchronisiervorrichtung für eine Wechsel-Zahnradkupplung und Synchronisiervorrichtung mit einem Druckstück
EP2003356A2 (fr) * 2007-05-28 2008-12-17 Hofer-PDC GmbH Synchronisation de boîte de vitesse et plaque d'appui d'une synchronisation de boîte de vitesse
DE102007027979A1 (de) 2007-06-19 2009-01-02 Audi Ag Ventiltrieb für Gaswechselventile einer Brennkraftmaschine mit Nockenwellen-Tunnellager
DE102009039733A1 (de) * 2009-09-02 2011-03-10 Thyssenkrupp Presta Teccenter Ag Ventiltrieb für Gaswechselventile einer Brennkraftmaschine mit axial verschiebbaren Nockeneinheiten
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DE102011084043A1 (de) 2011-10-05 2013-04-11 Schaeffler Technologies AG & Co. KG Schiebenockensystem mit Arretiervorrichtung für die Schiebenocken
DE102012004911A1 (de) 2012-03-09 2013-09-12 Audi Ag Ventiltrieb einer Brennkraftmaschine
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WO2014161620A1 (fr) * 2013-03-30 2014-10-09 Daimler Ag Dispositif de commande de soupapes pour un moteur à combustion interne de véhicule à moteur

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