EP3578769A1 - Dispositif de réglage, en particulier régulateur d'arbre à cames - Google Patents

Dispositif de réglage, en particulier régulateur d'arbre à cames Download PDF

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Publication number
EP3578769A1
EP3578769A1 EP19177202.9A EP19177202A EP3578769A1 EP 3578769 A1 EP3578769 A1 EP 3578769A1 EP 19177202 A EP19177202 A EP 19177202A EP 3578769 A1 EP3578769 A1 EP 3578769A1
Authority
EP
European Patent Office
Prior art keywords
transmission
gear
drive
flexspline
meshing
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP19177202.9A
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German (de)
English (en)
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EP3578769B1 (fr
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Ovalo GmbH
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Ovalo GmbH
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Filing date
Publication date
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Publication of EP3578769A1 publication Critical patent/EP3578769A1/fr
Application granted granted Critical
Publication of EP3578769B1 publication Critical patent/EP3578769B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
    • F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
    • F01L2001/34483—Phaser return springs
    • 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
    • F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
    • F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
    • F01L1/352—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using bevel or epicyclic gear
    • F01L2001/3521—Harmonic drive of flexspline type
    • 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
    • F01L2800/00—Methods of operation using a variable valve timing mechanism
    • F01L2800/12—Fail safe operation

Definitions

  • the invention relates to an adjusting device, in particular a camshaft adjuster, with an adjusting motor and a coaxial transmission, which has a first gear drive, a second gear drive and a gear output, wherein the adjusting motor is technically connected to the first gear drive, and with a return device, the mechanical energy storage includes and adjusts a default setting of the coaxial transmission in case of failure and / or after switching off the adjustment.
  • a camshaft phaser that includes a stress wave transmission.
  • the voltage wave transmission has at least two inputs and an output whose movement results from the superimposition of the movements of the inputs, one of the inputs being designed to carry out one main movement and the other input serving to carry out an adjustment movement which determines the phase position of the output relative to the phase position of the main movement exporting input adjusted.
  • the adjusting the exporting input is movable against the force of at least one return element of the stress wave transmission.
  • the restoring element is designed as a helical spring and arranged radially within the ring gears of the stress wave transmission.
  • a phaser for varying the phase relationship between a crankshaft and a camshaft in an internal combustion engine that includes a harmonic drive transmission unit having a circular spline and a dynamic spline, a flexspline disposed in the circular spline and the dynamic spline , a wave generator disposed in the flexspline.
  • the phaser also includes a rotary actuator connected to the shaft generator.
  • the phaser also includes at least one spring operatively connected to the circular spline and the dynamic spline to move the phaser to a standard rotational position.
  • the camshaft adjuster also includes a gear that is connectable to the crankshaft of an internal combustion engine.
  • a gear housing which carries the gear and which is attached to the harmonic drive gear unit, is connected to a first tab with the spring.
  • a hub which is attached to the harmonic drive transmission unit and connectable to a camshaft of the engine, is connected to a second tab of the spring.
  • the spring is arranged spatially between the harmonic drive transmission unit and the hub, which is connectable to a camshaft of the internal combustion engine.
  • a camshaft adjuster in which the restoring element is arranged spatially between a voltage wave transmission and an output shaft for coupling to a camshaft of an internal combustion engine.
  • Out DE 10 2011 004 070 A1 is a 3-shaft adjusting, comprising a rotatably connected to a drive shaft driving part, a rotatably connected to an output shaft driven part and a with an adjusting rotatably connectable actuator known. Between two of the three shafts, a first mechanical stop for limiting an adjustment angle between the drive shaft and the output shaft is provided. In addition, a second mechanical stop between two other waves is arranged as the first stop. As an alternative to the second stop, a wrap spring may be present.
  • camshaft adjusters which are constructed differently and in particular have no adjusting motor. These camshaft adjusters work on a very different principle than the aforementioned camshaft adjuster.
  • camshaft adjuster are for example off DE 10 2014 008 198 A1 . DE 103 55 560 A1 . EP 1 628 006 A2 or off WO 2017 026240 A1 known.
  • the object is achieved by an adjusting device, which is characterized in that the mechanical energy storage is arranged on the side facing away from the transmission output side of the coaxial transmission.
  • the transmission of the adjusting device preferably operates as a superposition gear in such a way that the coupled via the second gear drive rotational movement, in particular without over- or reduction, ie 1: 1, is transmitted to the transmission output, as long as the first transmission input performs a rotational movement of the same speed, and that a phase offset of the rotational movement is achieved at the second gear drive relative to the rotational movement at the transmission output, if at first transmission input the speed is changed briefly.
  • the adjusting device can be designed, for example, as a camshaft adjuster, which makes it possible to change the valve opening time of an internal combustion engine as a function of speed and in particular to advance it as the rotational speed of the internal combustion engine increases. In this case, it is ensured by means of the return device that, in the event of a failure and / or after the adjustment motor is switched off, a predetermined setting of the transmission and thus a predetermined valve opening time setting is automatically set. For example, an internal combustion engine that was switched off with a valve opening time point adjustment advanced for higher speeds would not be possible or very difficult to start.
  • the restoring device can apply a sufficiently large torque if necessary in order to be able to drive back the transmission and the adjusting motor.
  • the invention is particularly advantageous in this respect, because it is made possible by the particular arrangement of the mechanical energy storage, these, for example in the form of a spring and in particular a coil spring to form very large, without other components of the adjustment and in particular the transmission, complicated or unnecessarily large.
  • the mechanical energy storage is radially smaller than the tip diameter of a formed as a drive gear second transmission input and / or smaller than the outer diameter of an internally toothed ring gear of the coaxial, in particular a Circularspline or Dynamicspline designed as a voltage wave transmission coaxial transmission ,
  • the mechanical energy storage is arranged spatially between the coaxial transmission and the adjusting motor.
  • Such an arrangement has the particular advantage that on the one hand a lot of space for the mechanical energy storage is available and on the other hand a direct and uncomplicated connection to the transmission can be realized.
  • the mechanical energy store may have a spring or be designed as a spring.
  • the mechanical energy store may have a spring formed as a spiral spring.
  • Such a design is especially advantageous when the coaxial transmission is designed as a voltage wave transmission, and the coil spring is supported on the one hand on the transmission drive or the shaft generator and on the other hand on a gear meshing with the radially flexible Flexspline. In such a case, the drive back on the fast transmission side, so that in most cases several revolutions of the first transmission drive are required until the predetermined setting of the transmission is set. This can be realized particularly reliably with a spring designed as a spiral spring.
  • the spring may, in particular in the form of a spiral spring, be formed as a flat spiral spring.
  • the mechanical energy store has a flat spiral spring with a number of turns between 1 and 50, in particular 10 to 40 or 20 to 30.
  • the mechanical energy store has a spring that is made of a material with a rectangular material cross section.
  • the mechanical energy storage has a spring which is made of a material having a circular material cross-section.
  • the coupling of the mechanical energy storage can be frictionally, for example by means of screws or rivets, or positively, for example by pressing, or materially, for example by welding or soldering, realized.
  • the mechanical energy storage is coupled by means of at least one cylindrical pin to a transmission component.
  • At least one end of the spring is bent over for coupling to a transmission component and is guided through a passage in the transmission component or protrudes into a recess of the transmission component.
  • a first end of the spring is bent over for coupling to a first transmission component and guided through a passage in the first transmission component or projects into a recess of the first transmission component and that a second end of the spring for coupling to a second transmission component bent over and passed through a passage in the second transmission component or projects into a recess of the second transmission component.
  • a portion of the spring directly adjoining the bent portion of the spring bears against the gear component outside the recess or passage, in particular directly.
  • Such a design has the particular advantage that a particularly secure connection is realized, in which a swinging or periodic striking of the spring to the transmission component is effectively avoided.
  • a design of the spring as a spiral spring which abutting the transmission member portion of the coil spring advantageously has a corresponding polar angle in the range of 1 degree to 360 degrees, in particular in the range of 25 degrees to 180 degrees, more preferably in the range of 45 degrees to 90 Degree.
  • the mechanical energy store may be formed, for example, as a gas pressure spring.
  • the mechanical energy storage advantageously be arranged coaxially with the axis of rotation of the coaxial transmission.
  • Such an embodiment makes it possible, in particular, to be able to form the adjusting device largely rotationally symmetrical.
  • the mechanical energy storage is at least partially enclosed by a with a transmission component, such as the transmission output or the first gear drive or the second gear drive, rotatably connected housing part.
  • a transmission component such as the transmission output or the first gear drive or the second gear drive, rotatably connected housing part.
  • the housing part on the one hand be operatively connected to the mechanical energy storage, such as the end of a spring, and on the other hand with a transmission component.
  • Coaxial gears are in particular those transmissions in which a drive shaft and an output shaft are arranged on the same axis of rotation.
  • Coaxial gears are available in different gear types. They are usually designed as a gear transmission.
  • the coaxial transmission can be advantageously designed as a voltage wave transmission or as a planetary gear.
  • the coaxial transmission is designed as a voltage wave transmission having a rotatably connected to the gear drive shaft generator, a radially flexible flexspline and at least one standing with the Flexspline in toothed gear.
  • a trained as a ring gear voltage wave transmission has, in particular in contrast to a pot or cap gear, an annular Flexspline.
  • the stress wave transmission can advantageously be designed as a ring gear. Such an embodiment makes it possible to design the adjusting device particularly compact in the axial direction. However, it is also possible that the stress wave transmission is designed as a pot gear.
  • the stress wave transmission can be designed as a ring gear, which has two toothed wheels of different numbers of teeth meshed with the flexible spline.
  • the Flexspline has an external toothing
  • the gears meshing with the Flexspline are designed as internal toothed ring gears.
  • Internal rotor in which the Flexspline have an internal toothing and the toothed wheels in mesh with it have an external toothing.
  • one of the gear teeth meshing with the flex spline is non-rotatably connected to the transmission output, while the other of the gear splines meshed with the flex spline is non-rotatably connected to the second gear drive.
  • the breakthrough for example, tunnel-shaped, in particular be designed as a slot or as a curved, slot. It is alternatively also possible that the breakthrough is realized as a groove or recess.
  • the groove may be designed to be open radially outward.
  • the opening may have a different shape than connecting part, which projects through the opening.
  • the opening can be formed as, in particular curved, elongated hole, while the connecting part protruding through the opening can have a circular cross-section.
  • the coaxial transmission may be realized in different ways with respect to the orientation of the aperture and the connecting part extending through the aperture. This results in particular in the possibility of adapting the construction of the coaxial transmission specifically to the particular installation conditions available.
  • the connecting part can extend in particular in the axial direction through the opening. It is alternatively also possible, for example, that the connecting part extends in the radial direction through the opening or that the connecting part extends obliquely (ie both with an axial portion and a radial portion) through the correspondingly formed and aligned opening.
  • the coaxial transmission is designed such that the second transmission drive and the transmission output are rotatable relative to each other only in a limited angular range.
  • a predetermined adjustment range can not be left.
  • a camshaft adjuster can be ensured so that no valve timing can be adjusted, which are not provided for the operation of an internal combustion engine or which could even lead to damage to the engine.
  • one of the limits of the angular range defines the predetermined setting.
  • the adjustment can be advantageously designed in such a way that the return device for setting the predetermined setting, the transmission in case of failure and / or after switching off the adjustment drives back so long until a transmission component reaches a stop and so a further driving back prevented.
  • transmission component is used in the context of this patent application as a generic term for each of the components that belong to the stress wave transmission and contribute to its function.
  • the wave generator, the flexspline, the teeth meshed with the flexspline, the first gear drive, the second gear drive, and the transmission output are gear components.
  • a limited angular range in which the second gear drive and the gear output are rotatable relative to each other for example, be realized that at least one stop is present, to which a transmission component strikes when a limit of the angular range is reached.
  • at least one stop has a damping element, in particular a spring damper, an elastomer damper, an oil pressure damper or a gas pressure damper.
  • a stop member is supported linearly movable in a starting position, which is in the event of a stop against the restoring force of a spring or a pressurized fluid, in particular oil or gas, initially moved out of the starting position and then through the Restoring force returns to the starting position.
  • a mechanical stop for limiting the angular range in which the second gear drive and the gear output are rotatable relative to each other can advantageously be formed, for example, by an edge portion of a recess, for example a curved groove, or a breakthrough, for example a curved slot, in one of the transmission components in which projects the other transmission component or through which passes through the other transmission component.
  • a first gearwheel meshing with the flexspline to be connected in a rotationally fixed manner to a transmission output and a second gearwheel meshing with the flexspline for rotation therewith second gear drive is connected, wherein at least a first connecting part, which connects the first gear to the transmission output, by at least one opening or a recess in the second gear or in a second Connecting part, which connects the second gear to the second gear drive, or in a rotatably connected to the second gear member, or at least a second connecting part, which connects the second gear to the second gear drive, through at least one opening or a recess in the first gear or in a first connecting part, which connects the first gear with the second gear output, or in a rotatably connected to the first gear member.
  • the recess or the aperture is preferably formed so large that a relative rotation of the transmission components, in particular of the standing with the Flexspline teeth meshing gears, in a limited range is possible.
  • the restoring device for adjusting the predetermined setting exerts a torque and relies on the one hand on the transmission drive, which is preferably non-rotatably connected to the wave generator, or the wave generator and on the other hand directly or indirectly to one with the radially flexible Flexspline in meshing Gear off.
  • the transmission drive which is preferably non-rotatably connected to the wave generator, or the wave generator and on the other hand directly or indirectly to one with the radially flexible Flexspline in meshing Gear off.
  • the restoring device may exert a torque for setting the predetermined setting and to be supported on the one hand on a first toothed gear meshing with the radially flexible flexspline and on the other hand on a second toothed gear meshing with the radially flexible flexspline.
  • a design has the particular advantage that due to the smaller required spring travel designed as a mechanical energy storage spring, in particular coil spring, can be made very compact.
  • the return device is supported on the toothed with the radially flexible Flexspline gear mesh, which is rotatably connected to the second gear drive, and / or that the return device to the with the radially flexible Flexspline meshing gear is supported, which is not rotatably connected to the transmission output.
  • the first gear drive is arranged with respect to a compact feasibility on the side facing away from the transmission output side of the transmission.
  • the wave generator is made in lightweight construction.
  • the bearing seat for a radially flexible roller bearing of the wave generator is made of high-strength material, in particular steel, while the rest of the wave generator is made of a lightweight material, in particular of aluminum.
  • Such a design avoids excessive loading of the transmission upon reaching a stop limiting the adjustment.
  • the wave generator Upon reaching a stop of a transmission component, the wave generator is blocked abruptly, which may come due to the inertia of the wave generator to a high load of the transmission and in particular to a Kochratschen the meshing.
  • the inertia can be advantageously reduced by the mentioned lightweight construction.
  • the adjusting device can be advantageously designed, for example, as a camshaft adjuster for an internal combustion engine.
  • the second transmission drive is designed and intended to be coupled, in particular via a belt drive or a chain drive, to a crankshaft of an internal combustion engine and that the transmission output is designed and intended to be non-rotatable with a camshaft, in particular an intake camshaft or an exhaust camshaft to be coupled.
  • the adjusting device according to the invention can be designed, for example, as a device for adjusting the expansion stroke or the compression ratio of an internal combustion engine.
  • the internal combustion engine may have an adjusting shaft, to which the adjusting device is coupled.
  • the rotational position of the adjusting determines the size of the expansion stroke or the compression ratio of the internal combustion engine.
  • the internal combustion engine for adjusting the expansion stroke or the compression ratio may have a multi-joint crank mechanism with an eccentric shaft.
  • an internal combustion engine is of particular advantage, which has an adjusting device according to the invention.
  • the internal combustion engine may in particular be a propulsion-generating drive motor for a motor vehicle display, in particular for a car or a truck.
  • Fig. 1 shows an embodiment of an adjusting device according to the invention, which may be formed, for example, as a camshaft adjuster.
  • the adjusting device has an adjusting motor 1 and a coaxial transmission 2.
  • the coaxial transmission 2 includes a first transmission drive 3, a second transmission drive 4 and a transmission output 5, wherein the adjusting motor 1 is connected via a drive shaft 6 in terms of drive technology with the first transmission drive 3.
  • the transmission output 5 is rotatably connected to a camshaft 30.
  • the adjusting device also has a return device 7, which includes a mechanical energy storage 8 and which adjusts a predetermined setting of the coaxial transmission 2 in case of failure and / or after switching off the adjustment motor 1, wherein the mechanical energy storage 8 on the side facing away from the transmission output 5 Coaxial transmission 2 is arranged.
  • the mechanical energy store 8 is arranged spatially between the coaxial transmission 2 and the adjusting motor 1.
  • the mechanical energy storage 8 is arranged in one of two half-spaces, which are separated by a plane 9 perpendicular to the axis of rotation 10 of the coaxial transmission 2, wherein the transmission 2 together with its transmission output 5 are in the other half-space.
  • FIGS. 2 and 3 show in each case vertical sectional planes in each case a detailed view of the coaxial transmission 2 and the return device 7 of a second embodiment of an adjusting device according to the invention.
  • the coaxial transmission 2 is designed as a voltage wave transmission, the one rotatably connected to the first transmission drive 3 shaft generator 11, a radially flexible and externally toothed Flexspline 12 and a first internally toothed gear 13 and a second internally toothed gear 14, both with the Flexspline 12 in tooth engagement standing, has.
  • the first gear 13 is rotatably connected to the transmission output 5, while the second gear 14 rotatably connected to the second gear drive 4.
  • the first gear 13 has the same number of teeth as the Flexspline 12, while the second gear 14 has a teeth number higher by two teeth than the Flexspline 12.
  • the second gear 14 has the same number of teeth as the Flexspline 12th while the first gear 14 has a different number of teeth.
  • the first housing part 20 houses the mechanical energy accumulator 8 designed as a spiral spring 22 in part and also serves to connect one end of the coil spring 22 to the first gearwheel 13 in a rotationally fixed manner.
  • the other end of the spiral spring 22 is non-rotatable with the second gearwheel 14 via a second housing part 21 connected.
  • the shaft generator 11 is rotatably supported by means of a radially flexible rolling bearing 17 and rotatably connected to the first gear drive 3 (in FIG. 2 not shown).
  • the second transmission drive 4 has an outer toothing 15 and is designed and intended to be coupled via a chain drive to a crankshaft of an internal combustion engine.
  • the transmission output 5 is designed and intended to be non-rotatably coupled to a camshaft, in particular an intake camshaft or an exhaust camshaft of an internal combustion engine.
  • the coaxial transmission 2 is designed such that the second transmission drive 4 and the transmission output 5 are rotatable relative to each other only in a limited angular range, one of the limits of the angular range as described above defining the predetermined setting.
  • the other limit of the angular range is defined by the oppositely disposed second stop 24 of the aperture 19, which in FIG. 4 is shown.
  • FIG. 4 shows a sectional view of in FIG. 2 drawn sectional plane, wherein the sake of clarity, the wave generator 11, the radially flexible bearings 17 and the flexspline 12 are not shown. It can be seen that there are a total of four connecting parts 18 which connect the second gearwheel 14 to the second gearwheel drive 4 and which run through an opening 19 in the first gearwheel 13.
  • FIG. 5 shows a detailed view of the second embodiment with respect to the coupling of one end of the coil spring 22 to the housing part 20.
  • the coil spring 22 is guided through a passage in the transmission member 20 and bent over.
  • a directly adjoining the bent portion of the coil spring 22 section 26 of the coil spring 22 is located outside of the opening directly to the transmission member 20 at.
  • the portion 26 of the coil spring 22 has an associated polar angle 27 in the range of 25 degrees to 180 degrees.
  • FIG. 6 shows a detailed view of the second embodiment with respect to the coupling of the other end of the coil spring 22 to the second housing part 21.
  • the coil spring 22 is guided through a passage in the second transmission member 21 and bent.
  • a directly adjoining the bent portion of the coil spring 22 section 28 of the coil spring 22 is located outside of the opening directly to the second housing part 21 at.
  • the portion 28 of the coil spring 22 has an associated polar angle 29 in the range of 25 degrees to 180 degrees.
  • FIGS. 7 and 8th each show a detail view of the coaxial transmission 2 and the return device 7 of a third embodiment of an adjusting device according to the invention in mutually perpendicular sectional planes.
  • the coaxial transmission 2 is designed as a voltage wave transmission, which is rotatably connected to the gear drive 3 shaft generator 11, a radially flexible and externally toothed Flexspline 12 and a first internally toothed gear 13 and a second internally toothed gear 14, both of which are in mesh with the Flexspline 12 , having.
  • the first gear 13 is rotatably connected to the transmission output 5, while the second gear 14 rotatably connected to the second gear drive 4.
  • the first gear 13 has the same number of teeth as the Flexspline 12, while the second gear 14 has a teeth number higher by two teeth than the Flexspline 12.
  • the second gear 14 has the same number of teeth as the Flexspline 12th while the first gear 14 has a different number of teeth.
  • the shaft generator 11 is rotatably supported by means of a radially flexible roller bearing 17 and rotatably connected to the first gear drive 3.
  • the second gear 14 is also rotatably connected to a first housing part 20.
  • the first housing part 20 partially houses the mechanical energy store 8 designed as a spiral spring 22.
  • the other end of the coil spring 22 is rotatably connected to the first gear drive 3.
  • the second transmission drive 4 has an outer toothing 15 and is designed and intended to be coupled via a chain drive to a crankshaft of an internal combustion engine.
  • the transmission output 5 is designed and intended to be non-rotatably coupled to a camshaft, in particular an intake camshaft or an exhaust camshaft of an internal combustion engine.
  • An adjustment operation is effected by causing the wave generator 11 to rotate by means of the adjusting motor 1 (not shown in this figure), thereby causing relative rotation of the first gear 13 to the second gear 14, thereby tensioning the coil spring 22.
  • the coil spring 22 rotates the shaft generator 11 in the reverse direction of rotation and returns the first gear 13 relative to the second gear 14 to a predetermined setting.
  • the predetermined setting is reached when the connecting part 18 abuts against a first stop 23 of the recess 25, which is in FIG. 9 is shown.
  • the coaxial transmission 2 is designed such that the second transmission drive 4 and the transmission output 5 are rotatable relative to each other only in a limited angular range, one of the limits of the angular range as described above defining the predetermined setting.
  • the other limit of the angular range is defined by the oppositely disposed second stop 24 of the recess 25, which in FIG. 9 is shown.
  • FIG. 9 shows a sectional view of in FIG. 7 drawn sectional plane, wherein the sake of clarity, the wave generator 11, the radially flexible bearings 17 and the flexspline 12 are not shown. It can be seen that there are a total of four connecting parts 18 which connect the second gearwheel 14 to the second gearwheel drive 4 and which run through a respective recess 25 in the first gearwheel 13.
  • FIG. 10 shows a detailed view of the coaxial transmission 2 and the return device 7 of a fourth embodiment of an adjusting device according to the invention.
  • the coaxial transmission 2 is designed as a voltage wave transmission, which is rotatably connected to the gear drive 3 shaft generator 11, a radially flexible and externally toothed Flexspline 12 and a first internally toothed gear 13 and a second internally toothed gear 14, both of which are in mesh with the Flexspline 12 , having.
  • the first gear 13 is rotatably connected to the transmission output 5, while the second gear 14 rotatably connected to the second gear drive 4.
  • the first gear 13 has the same number of teeth as the Flexspline 12, while the second gear 14 has a teeth number higher by two teeth than the Flexspline 12.
  • the second gear 14 has the same number of teeth as the Flexspline 12th while the first gear 14 has a different number of teeth.
  • the shaft generator 11 is rotatably supported by means of a radially flexible roller bearing 17 and rotatably connected to the first gear drive 3.
  • a connecting part 18 connects the second gear 14 with the second gear drive 4.
  • the second gear 14 is also rotatably connected to a first housing part 20.
  • the first housing part 20 partially houses the mechanical energy store 8 designed as a spiral spring 22.
  • the other end of the coil spring 22 is rotatably connected to the first gear drive 3.
  • the second transmission drive 4 has an outer toothing 15 and is designed and intended to be coupled via a chain drive to a crankshaft of an internal combustion engine.
  • the transmission output 5 is designed and intended to be non-rotatably coupled to a camshaft, in particular an intake camshaft or an exhaust camshaft of an internal combustion engine.
  • the non-rotatably connected to the second gear 13 gearbox output 5 has a plurality of radially outwardly projecting projections 16, each of which projects into a respective recess 25 in the second gear drive 4.
  • the coaxial transmission 2 is designed such that the second transmission drive 4 and the transmission output 5 are rotatable relative to each other only in a limited angular range, one of the limits of the angular range as described above defining the predetermined setting.
  • the other limit of the angular range is defined by the oppositely disposed second stop 24 of the recess 25, which in FIG. 11 is shown.

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EP19177202.9A 2018-06-01 2019-05-29 Dispositif de réglage, en particulier régulateur d'arbre à cames Active EP3578769B1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019118779A1 (de) * 2019-07-11 2021-01-14 Schaeffler Technologies AG & Co. KG Verstellvorrichtung

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10355560A1 (de) 2003-11-28 2005-08-11 Daimlerchrysler Ag Verstellvorrichtung für eine Nockenwelle einer Brennkraftmaschine
EP1628006A2 (fr) 2004-08-06 2006-02-22 Honda Motor Co., Ltd. Dispositif de variation de la phase de l'arbre à cames d'un moteur à combustion interne
EP2282020A1 (fr) 2009-08-06 2011-02-09 Delphi Technologies, Inc. Déphaseur d'arbre à cames à commande harmonique avec ressort de rappel
DE102010006392B3 (de) 2010-02-01 2011-05-12 Ovalo Gmbh Spannungswellengetriebe und Nockenwellenversteller mit Spannungswellengetriebe
EP2386732A1 (fr) 2010-05-12 2011-11-16 Delphi Technologies, Inc. Mise en phase d'arbre à cames à commande harmonique avec pignon à commande compacte
DE102011004070A1 (de) 2011-02-14 2012-08-16 Schaeffler Technologies Gmbh & Co. Kg 3-Wellen-Verstellgetriebe mit zwei mechanischen Anschlägen
EP2530260A1 (fr) * 2011-06-03 2012-12-05 Magna Powertrain AG & Co. KG Arbre d'embrayage, actionneur, boîte de vitesses à dispositif de réglage d'arbre à came et régulateur de l'arbre à came
EP2884077A1 (fr) * 2012-08-13 2015-06-17 Nissan Motor Co., Ltd Dispositif de commande et procédé de commande pour moteurs à combustion interne à taux de compression variable
EP2927441A1 (fr) 2014-04-01 2015-10-07 Delphi Technologies, Inc. Déphaseur d'arbre à cames à actionnement électrique
DE102014008198A1 (de) 2014-05-30 2015-12-03 Daimler Ag Nockenwellenverstellvorrichtung für eine Brennkraftmaschine
WO2017026240A1 (fr) 2015-08-10 2017-02-16 日立オートモティブシステムズ株式会社 Dispositif de commande de calage de distribution destiné à un moteur à combustion interne
DE112015003581T5 (de) * 2014-09-04 2017-06-08 Borgwarner Inc. Versteller zur variablen motor-nockenwellensteuerung mit planetenradanordnung
JP2017145710A (ja) * 2016-02-16 2017-08-24 日立オートモティブシステムズ株式会社 内燃機関用リンク機構のアクチュエータ

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10355560A1 (de) 2003-11-28 2005-08-11 Daimlerchrysler Ag Verstellvorrichtung für eine Nockenwelle einer Brennkraftmaschine
EP1628006A2 (fr) 2004-08-06 2006-02-22 Honda Motor Co., Ltd. Dispositif de variation de la phase de l'arbre à cames d'un moteur à combustion interne
EP2282020A1 (fr) 2009-08-06 2011-02-09 Delphi Technologies, Inc. Déphaseur d'arbre à cames à commande harmonique avec ressort de rappel
DE102010006392B3 (de) 2010-02-01 2011-05-12 Ovalo Gmbh Spannungswellengetriebe und Nockenwellenversteller mit Spannungswellengetriebe
EP2386732A1 (fr) 2010-05-12 2011-11-16 Delphi Technologies, Inc. Mise en phase d'arbre à cames à commande harmonique avec pignon à commande compacte
DE102011004070A1 (de) 2011-02-14 2012-08-16 Schaeffler Technologies Gmbh & Co. Kg 3-Wellen-Verstellgetriebe mit zwei mechanischen Anschlägen
EP2530260A1 (fr) * 2011-06-03 2012-12-05 Magna Powertrain AG & Co. KG Arbre d'embrayage, actionneur, boîte de vitesses à dispositif de réglage d'arbre à came et régulateur de l'arbre à came
EP2884077A1 (fr) * 2012-08-13 2015-06-17 Nissan Motor Co., Ltd Dispositif de commande et procédé de commande pour moteurs à combustion interne à taux de compression variable
EP2927441A1 (fr) 2014-04-01 2015-10-07 Delphi Technologies, Inc. Déphaseur d'arbre à cames à actionnement électrique
DE102014008198A1 (de) 2014-05-30 2015-12-03 Daimler Ag Nockenwellenverstellvorrichtung für eine Brennkraftmaschine
DE112015003581T5 (de) * 2014-09-04 2017-06-08 Borgwarner Inc. Versteller zur variablen motor-nockenwellensteuerung mit planetenradanordnung
WO2017026240A1 (fr) 2015-08-10 2017-02-16 日立オートモティブシステムズ株式会社 Dispositif de commande de calage de distribution destiné à un moteur à combustion interne
JP2017145710A (ja) * 2016-02-16 2017-08-24 日立オートモティブシステムズ株式会社 内燃機関用リンク機構のアクチュエータ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019118779A1 (de) * 2019-07-11 2021-01-14 Schaeffler Technologies AG & Co. KG Verstellvorrichtung

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