EP2530260A1 - Coupling shaft, actuator, cam shaft adjustment drive and cam shaft adjuster - Google Patents
Coupling shaft, actuator, cam shaft adjustment drive and cam shaft adjuster Download PDFInfo
- Publication number
- EP2530260A1 EP2530260A1 EP12167002A EP12167002A EP2530260A1 EP 2530260 A1 EP2530260 A1 EP 2530260A1 EP 12167002 A EP12167002 A EP 12167002A EP 12167002 A EP12167002 A EP 12167002A EP 2530260 A1 EP2530260 A1 EP 2530260A1
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- European Patent Office
- Prior art keywords
- coupling
- clutch
- shaft
- actuator
- coupling shaft
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- 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.)
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Classifications
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- 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
Definitions
- the invention relates to a coupling shaft for a camshaft actuator.
- the invention relates to an actuator for setting a camshaft variable speed gear.
- the invention relates to a camshaft adjusting, which is also referred to below as 'variable speed'.
- the invention relates to a camshaft adjuster for an internal combustion engine.
- the coupling shaft for a camshaft actuator is further developed in that the coupling shaft has at each of its two ends a respective coupling component for each one achschwinkelausrete rotary coupling.
- the fact that the coupling shaft according to the invention has a coupling component at each of its two ends it is possible to compensate for an axial offset, without causing by this measure a cause or enlargement of an axis angle between the actuator and the adjustment must be accepted.
- the developer receives an additional degree of freedom, which he can use to reduce the axial angle for the introduction of force into the actuator or into the adjusting mechanism.
- the clutch shaft may, but need not, be integral.
- An (entire) axial length of the coupling shaft may be greater than w% of a maximum diameter of the larger coupling component, where w% is at least 130%, in particular at least 150%.
- the coupling shaft may be tapered between its two ends over more than w% of its (total) axial length, w% being at least 30%, in particular at least 60%.
- the coupling shaft may comprise on at least one of its two end faces a cylindrically symmetrical, convex formation which is arranged concentrically to the main longitudinal axis of the coupling shaft.
- the coupling shaft may include a flange for a bearing.
- the first axis-compensating rotary joint may include a safety pin or a component of a toothed clutch, a dog clutch, a plug-in clutch, a dog clutch, a spur gear, a Teller leopardradkupplung, a flexible disc, a Belgkupplung, an elastomeric coupling, a helical clutch, a spring clutch, a spring disc clutch, a ridge clutch, a Compensating clutch, a Kardangetriebes or a constant velocity joint comprises.
- the second angle-compensating rotary joint may comprise a safety bolt or a component of a toothed clutch, a dog clutch, a plug-in clutch, a driving clutch, a spur gear clutch, a Teller leopardradkupplung, a flexible disc, a Belgkupplung, an elastomeric coupling, a helical clutch, a spring clutch, a spring disc clutch, a bridge coupling , a compensating coupling, a Kardangetriebes or a constant velocity joint.
- the toothed coupling component may comprise a curved tooth coupling.
- the toothed coupling component may have a spherical or ball-shaped basic shape on which the teeth of the toothed coupling component are arranged.
- the actuator is further developed in that a coupling shaft for providing the Nockenwellenverstellgetriebes is coupled to the actuator by means of a first achswinkelausrete Sammlunge in a region of the actuator, which faces away from the adjusting mechanism.
- a coupling shaft for providing the Nockenwellenverstellgetriebes is coupled to the actuator by means of a first achswinkelausrete Sammlunge in a region of the actuator, which faces away from the adjusting mechanism.
- the clutch shaft may extend over more than 50% of a (total) axial length of a rotor of the actuator.
- the coupling shaft may be rotatably arranged in the actuator at any circumferential angle in the pitch direction, wherein a pitch angle of the coupling shaft with respect to an axis of the actuator to at least 1 °, in particular to at least 2 °, more preferably to at least 3 °.
- the coupling shaft may be arranged axially displaceable in the rotor.
- the actuator may include a thrust bearing component for biasing the clutch shaft in the direction of the main longitudinal axis of the clutch shaft.
- the first axle-compensating rotary coupling for coupling to the rotor may include a safety pin or a component of a toothed clutch, a dog clutch, a plug-in clutch, a dog clutch, a spur gear, a Teller leopardradkupplung, a flexible disc, a Belgkupplung, an elastomer coupling, a helical clutch, a spring clutch, a spring disc clutch , a bridge coupling, a compensating coupling, a Kardangetriebes or a constant velocity joint.
- the actuator may comprise a coupling shaft according to the invention.
- the camshaft adjusting mechanism is further developed in that an inner or outer toothing of a gear drive gear of the camshaft adjusting gear for the engagement of the toothed coupling component of a coupling shaft according to the invention is formed or suitable or that the camshaft adjusting a clutch shaft according to the invention comprises.
- the gear coupling component of the clutch shaft may form a flying gear drive gear of the camshaft variable speed gear.
- the camshaft adjuster is further developed in that it comprises an actuator according to the invention and / or an inventive camshaft transmission.
- camshaft actuator 10 includes a servomotor 12 and an adjusting 32.
- the servomotor 12 may be for example an electric machine (electric motor), a hydraulic drive or a pneumatic drive.
- the servomotor 12 comprises a rotor 14, which is mounted in two rotor bearings 16.
- the rotor 14 includes a hollow shaft 18.
- the hollow shaft 18 is surrounded by a radial shaft seal 20, which helps to seal the oil-filled camshaft space 22 against parts of the servomotor 12.
- Cam shaft-side parts 26, 32 of the camshaft actuator 10 are typically located under engine oil 24.
- a clutch shaft 26 is passed through the hollow shaft 18 and fixed on that side of the rotor 14 to the rotor 14, which faces away from the adjusting 32.
- the coupling shaft 26 may extend over more than 50% of a (total) axial length of a rotor 14.
- the coupling shaft 26 is articulated to the rotor 14 for torque transmission to the adjusting mechanism 32 by means of a securing bolt 34.
- the clutch shaft 26 has at its Stellmotor principleen end 30 a passage 25 for a safety pin 34.
- the securing bolt 34 is mounted in opposite holes 36 in the wall of the hollow shaft 18.
- the coupling shaft 26 may have a spindle-shaped or spherical thickening 38 whose outer diameter is only slightly smaller than the inner diameter 40 of the hollow shaft 18.
- the securing bolt 34 is rotatably mounted in the hollow shaft 18 about its main longitudinal axis 35. Such a rotation is a rolling motion 44 of the securing bolt 34 (see Fig. 2 ).
- the securing bolt 34 is mounted in the hollow shaft 18 with so much play that it can be tilted with respect to an axis 37 of the holes 36.
- Such a tilting 48 is a pitching movement of the securing bolt 34.
- the coupling shaft 26 (based on the intersection 42 of the main longitudinal axes 19, 27) in every radial direction can be tilted, so tumble.
- the coupling shaft 26 on at least one of its two end faces 30, 31 comprises a cylindrically symmetrical, convex formation 28 which is arranged concentrically to the main longitudinal axis 27 of the coupling shaft 26.
- a (plate-shaped) securing flange 50 may be clamped between elastomeric disks 52, which are arranged concentrically on the rotor side 54.
- the coupling shaft 26 can execute a uniform wobbling motion during rotation of the rotor 14.
- a plurality of extensions it is also possible for a plurality of extensions to be fastened or integrally formed on the coupling shaft 26, which have circumferential directions, for example in 3, 4 or 5.
- On the other side 31 of the coupling shaft 26 engages a bevel gear 60 of the clutch shaft 26 in a bevel gear 72 of the adjusting 32 a.
- the teeth of the two bevel gears 60, 72 remain despite the Achswinkels 64 between the clutch shaft 26 and adjusting 32 in loose engagement.
- the dashed lines indicate ridges of the meshing teeth of the bevel gears 60, 72.
- the sketch also shows that sufficient clearance 66 can be provided between the coupling shaft 26 and the hollow shaft 18, so that the coupling shaft 26 remains sufficient space for the required wobbling motion.
- the coupling shaft 26 between its two ends 30, 31 is tapered over more than w% of its axial length 39, wherein w% is at least 30%, in particular at least 60%.
- the illustrated angle arrangement can not only result in a side view, but also from the viewpoint of every other circumferential angle of the main longitudinal axis of the rotor 14.
- the coupling shaft 26 may also be rigidly secured to the rotor 14, if it has a sufficient bending ability while maintaining sufficient torsional strength.
- a circular or annular cross-section of the coupling shaft 26 an increase in the bending ability is typically accompanied equally by an increase in the torsional capability.
- a twist of the flexible coupling shaft 26 does not interfere.
- by choosing a material with a suitable poisson's ratio, by choosing an anisotropic material, or by anisotropic design of the coupling shaft it is possible to adapt the ratio of flexural rigidity to torsional rigidity to specific application requirements.
- the illustrated angle arrangement can not only result in a side view, but also from the viewpoint of every other circumferential angle of the main longitudinal axis of the rotor 14.
- clutch shaft 26 has a servo-motor side a gear coupling component 58.
- the curved toothing allows an angle of the coupling shaft 26 relative to a main longitudinal axis 15 of the rotor 14 and the hollow shaft 18. Independent of which allows the internal teeth 59 of the hollow shaft 18 is an axial positional adjustment of the coupling shaft 26 along the main longitudinal axis 19 of the hollow shaft 18.
- the clutch shaft 26 of Fig. 5 and 6 also includes on the side of the adjusting gear 32, a gear coupling component 60 which engages in an internal gear of a gear drive gear 72 of the adjusting gear 32.
- the gear coupling component 60 here has a larger diameter 69, because the gear drive gear 72 is located at a location at which a mounting screw for the adjusting gear 32 with the sprocket 74 is to be passed to the camshaft 76 during assembly.
- the clutch shaft 26 can be pressed by means of spring force in the direction of adjusting 32.
- the end 31 of the clutch shaft 26 facing the camshaft 76 may be supported by a self-aligning bearing in the variator 32 (for example on an intermediate gear) or alternatively against the camshaft 76.
- the end 31 of the coupling shaft 26 may be mounted on a ball bearing 78, which has a convex outer ring 80 so that it can be slightly angled at axial offset 79 relative to the main axis 33 of the adjusting mechanism 32.
- the coupling shaft 26 may have a flange 81 on which the ball bearing 78 is mounted.
- the ball bearing 78 may be within a sprocket 72. It can be supported on a journal of the camshaft 76.
- the Fig. 7 shows a perspective view of an open Verstellgetriebes 32 with the gear drive gear 72.
- the gear drive gear 72 is designed here as a flying gear and has an internal toothing and an external toothing.
- the gear drive gear 72 serves to drive via an (not shown in the figure) reduction gear with intermediate gears 84 an adjusting of the adjusting 32.
- Flanges 82 on the gear drive gear 72 and on the idler gears 84 hold the gear drive gear 72 at the axis position between the idler gears 84.
- the gear drive gear 72 is held by guide wheels 86.
- the gear drive gear 72 should also be sufficiently fixed or supported in the axial direction. This can be achieved for example by sliding bearing surfaces or by a (not shown in the figure) ball bearings.
- the invention provides a clutch shaft 26, an actuator 12, a camshaft variator 32 and a camshaft actuator 10 with which radial forces between the clutch and the transmission input shaft can be reduced or avoided. This is especially true in combination with a cantilevered transmission input shaft (Gear drive gear 72).
- the space-saving design allows a reduction in the axial space requirement for the camshaft adjuster 10. Space that can be saved for the clutch of servo motor 12 with adjusting 32, allows the use of a cheaper Verstellgetriebes 32 or a more cost-effective servomotor 12th
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
- Gear Transmission (AREA)
Abstract
Description
Die Erfindung betrifft eine Kupplungswelle für einen Nockenwellensteller.The invention relates to a coupling shaft for a camshaft actuator.
Außerdem betrifft die Erfindung einen Aktor zum Stellen eines Nockenwellenverstellgetriebes.Moreover, the invention relates to an actuator for setting a camshaft variable speed gear.
Des Weiteren betrifft die Erfindung ein Nockenwellenverstellgetriebe, das im Folgenden auch mit 'Verstellgetriebe' bezeichnet wird.Furthermore, the invention relates to a camshaft adjusting, which is also referred to below as 'variable speed'.
Darüber hinaus betrifft die Erfindung einen Nockenwellenversteller für eine Brennkraftmaschine.Moreover, the invention relates to a camshaft adjuster for an internal combustion engine.
Aus
Es ist eine Aufgabe der Erfindung, eine Kupplungswelle für einen Nockenwellensteller bereitzustellen, mit der Massenkräfte auf diese Wellen und deren Lagerungen verringert werden können. Außerdem ist es eine Aufgabe der Erfindung, einen Aktor, ein Nockenwellenverstellgetriebe und einen Nockenwellenversteller mit diesem Vorteil bereitzustellen.It is an object of the invention to provide a clutch shaft for a camshaft actuator, with the mass forces can be reduced to these waves and their bearings. In addition, it is an object of the invention to provide an actuator, a camshaft variable speed and a phaser with this advantage.
Diese Aufgabe wird mit einer Kupplungswelle gelöst, welche die Merkmale des Patentanspruchs 1 umfasst. Vorteilhafte Weiterbildungen des Erfindungsgedankens sind Gegenstand der Unteransprüche.This object is achieved with a coupling shaft comprising the features of claim 1. Advantageous developments of the inventive concept are the subject of the dependent claims.
Erfindungsgemäß ist die Kupplungswelle für einen Nockenwellensteller dadurch weitergebildet, dass die Kupplungswelle an jedem ihrer beiden Enden je eine Kupplungskomponente für je eine achswinkelausgleichende Drehkupplung aufweist. Dadurch, dass die erfindungsgemäße Kupplungswelle an jedem ihrer beiden Enden eine Kupplungskomponente aufweist, ist es möglich, einen Achsversatz auszugleichen, ohne dass durch diese Maßnahme eine Herbeiführung oder Vergrößerung eines Achswinkels zwischen dem Aktor und dem Verstellgetriebe in Kauf genommen werden muss. Durch Aufteilung der Achsversatzanpassung auf zwei Kupplungen erhält der Entwickler einen zusätzlichen Freiheitsgrad, den er nutzen kann, den Achswinkel für die Krafteinleitung in den Aktor beziehungsweise in das Verstellgetriebe zu verringern. Durch Verringerung des Achswinkels für die Krafteinleitung in den Aktor beziehungsweise in das Verstellgetriebe wird eine Rotationssymmetrie der Kraftübertragung verbessert und eine Stärke der nachteiligen Massenkräfte verringert. Die Kupplungswelle kann, aber muss nicht, einstückig sein.According to the invention, the coupling shaft for a camshaft actuator is further developed in that the coupling shaft has at each of its two ends a respective coupling component for each one achschwinkelausgleichende rotary coupling. The fact that the coupling shaft according to the invention has a coupling component at each of its two ends, it is possible to compensate for an axial offset, without causing by this measure a cause or enlargement of an axis angle between the actuator and the adjustment must be accepted. By dividing the axial offset adjustment to two clutches, the developer receives an additional degree of freedom, which he can use to reduce the axial angle for the introduction of force into the actuator or into the adjusting mechanism. By reducing the axial angle for the introduction of force into the actuator or into the adjusting mechanism, a rotational symmetry of the power transmission is improved and a strength of the disadvantageous inertial forces is reduced. The clutch shaft may, but need not, be integral.
Eine (gesamte) Axiallänge der Kupplungswelle kann größer sein als w % eines maximalen Durchmessers der größeren Kupplungskomponente, wobei w % mindestens 130 %, insbesondere mindestens 150 %, beträgt.An (entire) axial length of the coupling shaft may be greater than w% of a maximum diameter of the larger coupling component, where w% is at least 130%, in particular at least 150%.
Die Kupplungswelle kann zwischen ihren beiden Enden über mehr als w % ihrer (gesamten) Axiallänge verjüngt sein, wobei w % mindestens 30 %, insbesondere mindestens 60 %, beträgt.The coupling shaft may be tapered between its two ends over more than w% of its (total) axial length, w% being at least 30%, in particular at least 60%.
Die Kupplungswelle kann auf mindestens einer ihrer beiden Stirnseiten eine zylindersymmetrische, konvexe Ausformung umfassen, die konzentrisch zur Hauptlängsachse der Kupplungswelle angeordnet ist.The coupling shaft may comprise on at least one of its two end faces a cylindrically symmetrical, convex formation which is arranged concentrically to the main longitudinal axis of the coupling shaft.
Die Kupplungswelle kann einen Flansch für ein Lager umfassen.The coupling shaft may include a flange for a bearing.
Die erste achswinkelausgleichende Drehkupplung kann einen Sicherungsbolzen oder eine Komponente einer Zahnkupplung, einer Klauenkupplung, einer Steckkupplung, einer Mitnehmerkupplung, einer Stirnzahnradkupplung, einer Tellerzahnradkupplung, einer Gelenkscheibe, einer Balgkupplung, einer Elastomerkupplung, einer Wendelkupplung, einer Federkupplung, einer Federscheibenkupplung, einer Stegkupplung, einer Ausgleichskupplung, eines Kardangetriebes oder eines Gleichlaufgelenks umfasst. Unabhängig davon kann die zweite achswinkelausgleichende Drehkupplung einen Sicherungsbolzen oder eine Komponente einer Zahnkupplung, einer Klauenkupplung, einer Steckkupplung, einer Mitnehmerkupplung, einer Stirnzahnradkupplung, einer Tellerzahnradkupplung, einer Gelenkscheibe, einer Balgkupplung, einer Elastomerkupplung, einer Wendelkupplung, einer Federkupplung, einer Federscheibenkupplung, einer Stegkupplung, einer Ausgleichskupplung, eines Kardangetriebes oder eines Gleichlaufgelenks umfassen. Die Zahnkupplungskomponente kann eine Bogenzahnkupplung umfassen. Die Zahnkupplungskomponente kann eine kugel- oder kugelabschnittförmige Grundform aufweist, auf der die Zähne der Zahnkupplungskomponente angeordnet sind.The first axis-compensating rotary joint may include a safety pin or a component of a toothed clutch, a dog clutch, a plug-in clutch, a dog clutch, a spur gear, a Tellerzahnradkupplung, a flexible disc, a Belgkupplung, an elastomeric coupling, a helical clutch, a spring clutch, a spring disc clutch, a ridge clutch, a Compensating clutch, a Kardangetriebes or a constant velocity joint comprises. Independently of this, the second angle-compensating rotary joint may comprise a safety bolt or a component of a toothed clutch, a dog clutch, a plug-in clutch, a driving clutch, a spur gear clutch, a Tellerzahnradkupplung, a flexible disc, a Belgkupplung, an elastomeric coupling, a helical clutch, a spring clutch, a spring disc clutch, a bridge coupling , a compensating coupling, a Kardangetriebes or a constant velocity joint. The toothed coupling component may comprise a curved tooth coupling. The toothed coupling component may have a spherical or ball-shaped basic shape on which the teeth of the toothed coupling component are arranged.
Erfindungsgemäß ist der Aktor dadurch weitergebildet, dass eine Kupplungswelle zum Stellen des Nockenwellenverstellgetriebes mit dem Aktor mittels einer ersten achswinkelausgleichenden Drehkupplung in einem Bereich des Aktors gekuppelt ist, der von dem Verstellgetriebe abgewandt ist. Hierdurch kann bei unverändertem Abstand zwischen Aktor und Nockwellenverstellgetriebe der Abstand zwischen dem Ort der abwinkelbaren Verbindung mit dem Rotor und dem Nockenwellenverstellgetriebe vergrößert werden, wodurch eine Verringerung des Achswinkels für die Krafteinleitung in das Verstellgetriebe erzielt, eine Rotationssymmetrie der Kraftübertragung verbessert und eine Stärke der nachteiligen Massenkräfte verringert wird.According to the invention, the actuator is further developed in that a coupling shaft for providing the Nockenwellenverstellgetriebes is coupled to the actuator by means of a first achswinkelausgleichenden rotary coupling in a region of the actuator, which faces away from the adjusting mechanism. In this way, with an unchanged distance between the actuator and Nockwellenverstellgetriebe the distance between the location of the bendable connection with the rotor and the camshaft Verstellgetriebe be increased, thereby achieving a reduction in the axis angle for the introduction of force in the variator, a rotational symmetry of the transmission improves and a strength of the adverse mass forces is reduced.
Die Kupplungswelle kann sich über mehr als 50% einer (gesamten) Axiallänge eines Rotors des Aktors erstrecken.The clutch shaft may extend over more than 50% of a (total) axial length of a rotor of the actuator.
Die Kupplungswelle kann in dem Aktor auf jedem Umfangswinkel in Nickrichtung drehbar angeordnet sein, wobei ein Nickwinkel der Kupplungswelle gegenüber einer Achse des Aktors bis mindestens 1°, insbesondere bis mindestens 2°, insbesondere bevorzugt bis mindestens 3°, betragen kann.The coupling shaft may be rotatably arranged in the actuator at any circumferential angle in the pitch direction, wherein a pitch angle of the coupling shaft with respect to an axis of the actuator to at least 1 °, in particular to at least 2 °, more preferably to at least 3 °.
Die Kupplungswelle kann in dem Rotor axial verschiebbar angeordnet sein.The coupling shaft may be arranged axially displaceable in the rotor.
Der Aktor kann eine Axiallagerkomponente zum Vorspannen der Kupplungswelle in Richtung der Hauptlängsachse der Kupplungswelle umfassen.The actuator may include a thrust bearing component for biasing the clutch shaft in the direction of the main longitudinal axis of the clutch shaft.
Die erste achswinkelausgleichende Drehkupplung zur Kopplung mit dem Rotor kann einen Sicherungsbolzen oder eine Komponente einer Zahnkupplung, einer Klauenkupplung, einer Steckkupplung, einer Mitnehmerkupplung, einer Stirnzahnradkupplung, einer Tellerzahnradkupplung, einer Gelenkscheibe, einer Balgkupplung, einer Elastomerkupplung, einer Wendelkupplung, einer Federkupplung, einer Federscheibenkupplung, einer Stegkupplung, einer Ausgleichskupplung, eines Kardangetriebes oder eines Gleichlaufgelenks umfassen.The first axle-compensating rotary coupling for coupling to the rotor may include a safety pin or a component of a toothed clutch, a dog clutch, a plug-in clutch, a dog clutch, a spur gear, a Tellerzahnradkupplung, a flexible disc, a Belgkupplung, an elastomer coupling, a helical clutch, a spring clutch, a spring disc clutch , a bridge coupling, a compensating coupling, a Kardangetriebes or a constant velocity joint.
Der Aktor kann eine erfindungsgemäße Kupplungswelle umfassen.The actuator may comprise a coupling shaft according to the invention.
Erfindungsgemäß ist das Nockenwellenverstellgetriebe dadurch weitergebildet, dass eine Innen oder Außenverzahnung eines Getriebeantriebszahnrads des Nockenwellenverstellgetriebes für den Eingriff der Zahnkupplungskomponente einer erfindungsgemäßen Kupplungswelle ausgebildet oder geeignet ist oder dass das Nockenwellenverstellgetriebe eine erfindungsgemäße Kupplungswelle umfasst.According to the invention, the camshaft adjusting mechanism is further developed in that an inner or outer toothing of a gear drive gear of the camshaft adjusting gear for the engagement of the toothed coupling component of a coupling shaft according to the invention is formed or suitable or that the camshaft adjusting a clutch shaft according to the invention comprises.
Die Zahnkupplungskomponente der Kupplungswelle kann ein fliegendes Getriebeantriebszahnrad des Nockenwellenverstellgetriebes bilden.The gear coupling component of the clutch shaft may form a flying gear drive gear of the camshaft variable speed gear.
Erfindungsgemäß ist der Nockenwellenversteller dadurch weitergebildet, dass er einen erfindungsgemäßen Aktor und/oder ein erfindungsgemäßes Nockenverstellgetriebe umfasst.According to the invention, the camshaft adjuster is further developed in that it comprises an actuator according to the invention and / or an inventive camshaft transmission.
Die Erfindung wird nachfolgend anhand eines in den schematischen Zeichnungen dargestellten Ausführungsbeispiels näher erläutert. Es zeigen:
- Fig. 1
- schematisch eine teilweise angeschnittene Seitenansicht einer ersten Ausführungsform eines erfindungsgemäßen Nockenwellenstellers;
- Fig. 2
- schematisch einen perspektivischen Seitenquerschnitt der ersten Ausführungsform des erfindungsgemäßen Nockenwellenstellers;
- Fig. 3
- schematisch in Seitenansicht ein Grundkonzept des erfindungsgemäßen Achsversatzausgleichs der ersten Ausführungsform;
- Fig. 4
- schematisch in Seitenansicht ein Grundkonzept des erfindungsgemäßen Achsversatzausgleichs einer zweiten Ausführungsform;
- Fig. 5
- schematisch eine teilweise angeschnittenen Seitenansicht eines Nockenwellenstellers mit einer dritten Ausführungsform der erfindungsgemäßen Kupplungswelle;
- Fig. 6
- schematisch eine Detailansicht eines Seitenquerschnitts der dritten Ausführungsform des erfindungsgemäßen Nockenwellenstellers; und
- Fig. 7
- schematisch eine perspektivische Ansicht eines geöffneten Nockenwellenverstellgetriebes mit einem fliegenden Getriebeantriebszahnrad.
- Fig. 1
- schematically a partially sectioned side view of a first embodiment of a camshaft actuator according to the invention;
- Fig. 2
- schematically a perspective side cross-section of the first embodiment of the camshaft actuator according to the invention;
- Fig. 3
- schematically a side view of a basic concept of the invention Achsversatzausgleichs the first embodiment;
- Fig. 4
- schematically a side view of a basic concept of the invention Achsversatzausgleichs a second embodiment;
- Fig. 5
- schematically a partially sectioned side view of a camshaft actuator with a third embodiment of the coupling shaft according to the invention;
- Fig. 6
- schematically a detailed view of a side cross section of the third embodiment of the camshaft actuator according to the invention; and
- Fig. 7
- schematically a perspective view of an open Nockenwellenverstellgetriebes with a flying Getriebeantriebszahnrad.
In den Figuren werden für entsprechende Komponenten jeweils dieselben Bezugszeichen verwendet. Bezugszeichenbezogene Erläuterungen gelten daher auch figurenübergreifend, sofern sich aus dem Zusammenhang nichts anderes ergibt.In the figures, the same reference numerals are used for respective components. Reference numerals related explanations therefore also apply across figures, unless otherwise stated in the context.
Der in
An diesem stellmotorseitigen Ende 30 ist die Kupplungswelle 26 für eine Drehmomentübertragung zu dem Verstellgetriebe 32 mittels eines Sicherungsbolzens 34 an dem Rotor 14 angelenkt. Die Kupplungswelle 26 weist an ihrem stellmotorseitigen Ende 30 eine Durchführung 25 für einen Sicherungsbolzen 34 auf. Der Sicherungsbolzen 34 ist in gegenüberliegenden Löchern 36 in der Wandung der Hohlwelle 18 gelagert. Im Bereich der Durchführung 25 für den Sicherungsbolzen 34 kann die Kupplungswelle 26 eine spindel- oder kugelförmige Verdickung 38 aufweisen, deren Außendurchmesser nur geringfügig kleiner ist als der Innendurchmesser 40 der Hohlwelle 18. Dadurch wird erreicht, dass die Kupplungswelle 26 (unabhängig von ihrer Taumelbewegung) in der Hohlwelle 18 so befestigt ist, dass am Ort des Sicherungsbolzens 34 eine Hauptlängsachse 27 der Kupplungswelle 26 einen gemeinsamen Schnittpunkt 42 mit der Hauptlängsachse 19 der Hohlwelle 18 hat.At this actuating motor end 30, the
Der Sicherungsbolzen 34 ist in der Hohlwelle 18 um seine Hauptlängsachse 35 drehbar gelagert. Eine solche Drehung ist eine Rollbewegung 44 des Sicherungsbolzens 34 (siehe
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Wie schon zu
Die
Zusammengefasst wird mit der Erfindung eine Kupplungswelle 26, ein Aktor 12, ein Nockenwellenverstellgetriebe 32 und ein Nockenwellensteller 10 bereitgestellt, mit der bzw. mit dem radiale Kräfte zwischen der Kupplung und der Getriebeeingangswelle verringert oder vermieden werden können. Dies gilt insbesondere in Kombination mit einer fliegend gelagerten Getriebeeingangswelle (Getriebeantriebszahnrad 72). Unabhängig davon ermöglicht die platzsparende Bauweise eine Verringerung des axialen Bauraumbedarfs für den Nockenwellensteller 10. Bauraum, der für die Kupplung von Stellmotor 12 mit Verstellgetriebe 32 eingespart werden kann, erlaubt die Verwendung eines kostengünstigeren Verstellgetriebes 32 oder eines kostengünstigeren Stellmotors 12.In summary, the invention provides a
- 1010
- Nockenwellenstellercamshaft actuator
- 1212
- Stellmotorservomotor
- 1414
- Rotorrotor
- 1515
-
Hauptlängsachse des Rotors 14Main longitudinal axis of the
rotor 14 - 1616
- Rotorlagerrotor bearing
- 1818
- Hohlwellehollow shaft
- 1919
- Hauptlängsachse der Hohlwelle 18Main longitudinal axis of the hollow shaft 18th
- 2020
- RadialwellendichtungRadial shaft seal
- 2222
- Nockenwellenraumcamshaft chamber
- 2323
-
Axiallänge des Rotors 14Axial length of the
rotor 14 - 2424
- MotorölEngine oil
- 2525
- Durchführung für SicherungsbolzenBushing for safety bolts
- 2626
- Kupplungswelleclutch shaft
- 2727
-
Hauptlängsachse der Kupplungswelle 26Main longitudinal axis of the
coupling shaft 26 - 2828
-
konvexe Ausformung der Kupplungswelle 26convex shape of the
coupling shaft 26 - 3030
- stellmotorseitiges Ende der Kupplungswelle 26Stellmotorseitiges end of the clutch shaft 26th
- 3131
- verstellgetriebeseitiges Ende der Kupplungswelle 26Verstellgetriebeseitiges end of the coupling shaft 26th
- 3232
- Verstellgetriebevariator
- 3333
- Hauptachse des Verstellgetriebes 32Main axis of the adjusting 32th
- 3434
- Sicherungsbolzensafety bolt
- 3535
-
Hauptlängsachse des Sicherungsbolzens 34Main longitudinal axis of the securing
bolt 34 - 3636
- Löcher in der Wandung der Hohlwelle 18Holes in the wall of the hollow shaft 18th
- 3737
- Achse der Löcher 36Axis of the holes 36
- 3838
- spindel- oder kugelförmige Verdickung der Kupplungswelle 26Spindle or spherical thickening of the coupling shaft 26th
- 3939
-
Axiallänge der Kupplungswelle 26Axial length of the
coupling shaft 26 - 4040
- Innendurchmesser der Hohlwelle 18Inner diameter of the hollow shaft 18th
- 4242
-
Schnittpunkt der Hauptlängsachsen 19 und 27Intersection of the main
longitudinal axes 19 and 27 - 4444
-
Rollbewegung des Sicherungsbolzens 34Rolling movement of the securing
bolt 34 - 4848
- Nickbewegung des Sicherungsbolzens 34Nick movement of the locking bolt 34th
- 5050
- Sicherungsflanschsecuring flange
- 5252
- Elastomerscheibenelastomer discs
- 5454
- Rotorseiterotor side
- 5656
- Sicherungsflanschsecuring flange
- 5858
- stellmotorseitige Bogenzahnkupplungskomponente der Kupplungswelle 26Engine-side gear coupling component of the clutch shaft 26th
- 5959
- Innenverzahnung der Hohlwelle 18Internal toothing of the hollow shaft 18th
- 6060
- verstellgetriebeseitige Bogenzahnkupplungskomponente der Kupplungswelle 26Verstellgetriebeseitige gear coupling component of the coupling shaft 26th
- 6262
- federgestütztes Kugelauflagerspring-supported ball bearing
- 6464
- AchswinkelAxis angle
- 6666
-
Spielraum zwischen Kupplungswelle 26 und Wandung der Hohlwelle 18Clearance between
coupling shaft 26 and wall of the hollow shaft 18th - 6969
-
Durchmesser der Bogenzahnkupplungskomponente 60Diameter of the
gear coupling component 60 - 7272
-
Getriebeantriebszahnrad des Verstellgetriebes 32Gear drive gear of the
variable speed gear 32 - 7474
- KettenradSprocket
- 7676
- Nockenwellecamshaft
- 7878
- Kugellagerball-bearing
- 7979
- Achsversatzaxial offset
- 8080
-
Außenring des Kugellagers 78Outer ring of the
ball bearing 78 - 8181
-
Flansch der Kupplungswelle 26Flange of the
coupling shaft 26 - 8282
- Spurkränze am Getriebeantriebszahnrad 72Flanges on the gear drive gear 72nd
- 8484
- Zwischenzahnradintermediate gear
- 8686
- Führungsräderguide wheels
Claims (16)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011103495A DE102011103495A1 (en) | 2011-06-03 | 2011-06-03 | Clutch shaft, actuator, camshaft variable speed gearbox and camshaft positioner |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2530260A1 true EP2530260A1 (en) | 2012-12-05 |
EP2530260B1 EP2530260B1 (en) | 2016-01-13 |
Family
ID=46177266
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12167002.0A Not-in-force EP2530260B1 (en) | 2011-06-03 | 2012-05-07 | Coupling shaft, actuator, cam shaft adjustment drive and cam shaft adjuster |
Country Status (4)
Country | Link |
---|---|
US (1) | US8919308B2 (en) |
EP (1) | EP2530260B1 (en) |
JP (1) | JP5419050B2 (en) |
DE (1) | DE102011103495A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3578769A1 (en) * | 2018-06-01 | 2019-12-11 | Ovalo GmbH | Adjusting device, in particular camshaft adjuster |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014217155B3 (en) * | 2014-08-28 | 2015-12-03 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster with two ball joints |
DE102016205742A1 (en) | 2016-04-07 | 2017-10-12 | Schaeffler Technologies AG & Co. KG | Electric adjusting device |
DE102019118779A1 (en) * | 2019-07-11 | 2021-01-14 | Schaeffler Technologies AG & Co. KG | Adjusting device |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0903471A1 (en) * | 1997-09-19 | 1999-03-24 | TCG UNITECH Aktiengesellschaft | Device for variable camshaft timing in an internal combustion engine |
DE10248351A1 (en) | 2002-10-17 | 2004-04-29 | Ina-Schaeffler Kg | Electrically driven camshaft adjuster |
DE102004041751A1 (en) | 2004-08-28 | 2006-03-16 | Ina-Schaeffler Kg | Phaser |
DE102004061711A1 (en) * | 2004-12-22 | 2006-07-06 | Daimlerchrysler Ag | Adjuster for relative rotating position of camshaft opposite to crankshaft of internal combustion engine has compensating element, which is formed as single piece or is firmly connected with inlet of adjustable mechanism |
EP1715143A2 (en) * | 2005-04-23 | 2006-10-25 | Schaeffler KG | Camshaft phasing device for an internal combustion engine |
DE102007049072A1 (en) | 2007-10-12 | 2009-04-16 | Schaeffler Kg | Phase adjuster for an internal combustion engine with an Oldham clutch |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3959987A (en) * | 1974-05-08 | 1976-06-01 | Subsea Equipment Associates Limited | Self-engaging and aligning shaft coupling |
US3955378A (en) * | 1974-07-16 | 1976-05-11 | Allonca Manuel J | Non-friction coupling system |
JPH0788858B2 (en) * | 1989-08-22 | 1995-09-27 | 新日本ツール株式会社 | Constant velocity universal shaft coupling |
JP4605907B2 (en) * | 1999-03-24 | 2011-01-05 | エフ・エー・フアウ・モトーレンテヒニック・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング | Coupling element that connects two axes that are parallel to each other and that are coaxially arranged at the front and rear and spaced laterally from each other |
-
2011
- 2011-06-03 DE DE102011103495A patent/DE102011103495A1/en not_active Withdrawn
-
2012
- 2012-05-07 EP EP12167002.0A patent/EP2530260B1/en not_active Not-in-force
- 2012-06-01 JP JP2012137287A patent/JP5419050B2/en not_active Expired - Fee Related
- 2012-06-03 US US13/487,210 patent/US8919308B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0903471A1 (en) * | 1997-09-19 | 1999-03-24 | TCG UNITECH Aktiengesellschaft | Device for variable camshaft timing in an internal combustion engine |
DE10248351A1 (en) | 2002-10-17 | 2004-04-29 | Ina-Schaeffler Kg | Electrically driven camshaft adjuster |
DE102004041751A1 (en) | 2004-08-28 | 2006-03-16 | Ina-Schaeffler Kg | Phaser |
DE102004061711A1 (en) * | 2004-12-22 | 2006-07-06 | Daimlerchrysler Ag | Adjuster for relative rotating position of camshaft opposite to crankshaft of internal combustion engine has compensating element, which is formed as single piece or is firmly connected with inlet of adjustable mechanism |
EP1715143A2 (en) * | 2005-04-23 | 2006-10-25 | Schaeffler KG | Camshaft phasing device for an internal combustion engine |
DE102007049072A1 (en) | 2007-10-12 | 2009-04-16 | Schaeffler Kg | Phase adjuster for an internal combustion engine with an Oldham clutch |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3578769A1 (en) * | 2018-06-01 | 2019-12-11 | Ovalo GmbH | Adjusting device, in particular camshaft adjuster |
Also Published As
Publication number | Publication date |
---|---|
DE102011103495A1 (en) | 2012-12-06 |
JP5419050B2 (en) | 2014-02-19 |
EP2530260B1 (en) | 2016-01-13 |
JP2012251660A (en) | 2012-12-20 |
US8919308B2 (en) | 2014-12-30 |
US20120309571A1 (en) | 2012-12-06 |
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