DE102008023151B4 - Adjustment device for relative angle adjustment - Google Patents
Adjustment device for relative angle adjustment Download PDFInfo
- Publication number
- DE102008023151B4 DE102008023151B4 DE102008023151.7A DE102008023151A DE102008023151B4 DE 102008023151 B4 DE102008023151 B4 DE 102008023151B4 DE 102008023151 A DE102008023151 A DE 102008023151A DE 102008023151 B4 DE102008023151 B4 DE 102008023151B4
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- Prior art keywords
- rotor
- contact
- adjusting device
- outer rotor
- blades
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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
- F01L1/3442—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
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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
- F01L2301/00—Using particular materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Stelleinrichtung (100) zur relativen Winkelverstellung einer angetriebenen Welle zu einer antreibenden Welle, umfassend einen Außenrotor (104) mit nach innen ragenden Rotorflügeln (108, 118, 120) und einen zu diesem relativ verdrehbaren Innenrotor (102) mit nach außen ragenden Rotorflügeln (106, 130), wobei die Rotorflügel (106, 130, 108, 118, 120) in den Drehendlagen zumindest bereichsweise aneinander anliegen, wobei der Innenrotor (102) und/oder der Außenrotor (104) im Wesentlichen aus einer Leichtmetalllegierung oder aus Kunststoff besteht, dadurch gekennzeichnet, dass wenigstens ein Rotorflügel (118, 120) des Außenrotors (104) einen Kontakt (122, 124) zur elektrischen Anschlagabfrage aufweist.Adjusting device (100) for the relative angular adjustment of a driven shaft to a driving shaft, comprising an outer rotor (104) with inwardly protruding rotor blades (108, 118, 120) and an inner rotor (102) which can be rotated relative to this and which has outwardly protruding rotor blades (106) , 130), whereby the rotor blades (106, 130, 108, 118, 120) in the end-of-rotation positions bear against one another at least in some areas, the inner rotor (102) and / or the outer rotor (104) essentially consisting of a light metal alloy or plastic, characterized in that at least one rotor blade (118, 120) of the outer rotor (104) has a contact (122, 124) for electrical stop query.
Description
Die Erfindung betrifft eine Stelleinrichtung zur relativen Winkelverstellung einer angetriebenen Welle, insbesondere einer Nockenwelle einer Brennkraftmaschine, zu einer antreibenden Welle, insbesondere einer Kurbelwelle einer Brennkraftmaschine, umfassend einen Außenrotor mit nach innen ragenden Rotorflügeln und einen zu diesem relativ verdrehbaren Innenrotor mit nach außen ragenden Rotorflügeln, wobei die Rotorflügel in den Drehendlagen zumindest bereichsweise aneinander anliegen.The invention relates to an adjusting device for the relative angular adjustment of a driven shaft, in particular a camshaft of an internal combustion engine, to a driving shaft, in particular a crankshaft of an internal combustion engine, comprising an outer rotor with inwardly protruding rotor blades and an inner rotor which can be rotated relative to this and which has outwardly protruding rotor blades, wherein the rotor blades are in contact with one another at least in some areas in the end-of-rotation positions.
Eine derartige Einrichtung erlaubt eine relative rotatorische Verstellung der Nockenwelle gegenüber der Kurbelwelle und somit eine Verteilung der Steuerzeiten von von der Nockenwellen betätigten Ein- und/oder Auslassventilen einer Brennkraftmaschine. Vorteile ergeben sich dabei insbesondere in Bezug auf Emissionen, Kraftstoffverbrauch, Drehmomentenverlauf und Leistungsentfaltung.Such a device allows a relative rotational adjustment of the camshaft with respect to the crankshaft and thus a distribution of the control times of inlet and / or outlet valves of an internal combustion engine actuated by the camshaft. There are advantages in particular with regard to emissions, fuel consumption, torque curve and power delivery.
Für einen einwandfreien Betrieb solcher Stelleinrichtungen ist es wesentlich, die relative Winkelstellung zwischen Nockenwelle und Kurbelwelle zu kennen. Hierfür werden Innen- und Außenrotor beim Abstellen der Brennkraftmaschine in einer Referenzlage, üblicherweise in einer Drehendlage, in der die Rotorflügel aneinander anliegen, gegeneinander arretiert, sodass bei Wiederinbetriebnahme der Brennkraftmaschine von einer bekannten relativen Winkelstellung zwischen Nockenwelle und Kurbelwelle ausgegangen werden kann.For proper operation of such actuating devices, it is essential to know the relative angular position between the camshaft and the crankshaft. For this purpose, when the internal combustion engine is switched off, the inner and outer rotors are locked against each other in a reference position, usually in an end-of-rotation position in which the rotor blades are in contact with one another, so that when the internal combustion engine is restarted, a known relative angular position between the camshaft and crankshaft can be assumed.
Ein derartiger Verriegelungs- oder Arretiermechanismus ist allerdings baulich und unter Kostengesichtspunkten aufwändig und erfordert eine vorgegebene Mindestfestigkeit der beteiligten Komponenten, insbesondere auch von Innen- und Außenrotor mit der Folge, dass die gesamte Stelleinrichtung ein hohes Gewicht aufweist. Außerdem kann zeitgerechte das Lösen der Arretierung beim Start der Brennkraftmaschine problematisch sein.Such a locking or arresting mechanism is, however, complex in terms of construction and cost and requires a predetermined minimum strength of the components involved, in particular also of the inner and outer rotor, with the result that the entire actuating device has a high weight. In addition, the timely release of the lock when starting the internal combustion engine can be problematic.
Das Dokument
Aus dem Dokument
Aus dem Dokument
Aufgabe der Erfindung ist es daher, eine eingangs genannte Stelleinrichtung bereitzustellen, welche ein gegenüber bekannten Einrichtungen verringertes Gewicht aufweist.The object of the invention is therefore to provide an actuating device mentioned at the beginning which has a reduced weight compared to known devices.
Die Lösung der Aufgabe erfolgt mit einer Stelleinrichtung mit den Merkmalen des Anspruchs 1, wobei erfindungsgemäß wenigstens ein Rotorflügel des Außenrotors einen Kontakt zur elektrischen Anschlagabfrage aufweist. Dadurch kann auf einen gesonderten Verriegelungs- oder Arretiermechanismus zur Arretierung von Innen- und Außenrotor gegeneinander in einer Referenzlage verzichtet werden, sodass sich das Gewicht der Stelleinrichtung wesentlich verringert, der gesamte Steuertrieb in Bezug auf Drehschwingungen vorteilhaft beeinflusst wird und Schwierigkeiten beim zeitgerechten Lösen der Arretierung vermieden sind. Außerdem ergeben sich Materialbedingt auch Vorteile bei der Fertigung des Innenrotors und insbesondere des Außenrotors.The object is achieved with an actuating device with the features of claim 1, wherein according to the invention at least one rotor blade of the outer rotor has a contact for the electrical stop query. As a result, a separate locking or locking mechanism for locking the inner and outer rotor against each other in a reference position can be dispensed with, so that the weight of the actuating device is significantly reduced, the entire control drive is advantageously influenced with regard to torsional vibrations and difficulties in releasing the lock in time are avoided are. In addition, material-related advantages also result in the manufacture of the inner rotor and, in particular, of the outer rotor.
Besonders zu bevorzugende Weiterbildungen der erfindungsgemäßen Stelleinrichtung sind Gegenstand der Unteransprüche.Particularly preferred developments of the actuating device according to the invention are the subject matter of the subclaims.
Von besonderem Vorteil ist es, wenn der Innenrotor im Wesentlichen aus einer Leichtmetalllegierung und der Außenrotor im Wesentlichen aus Kunststoff besteht. Auf diese Weise werden eine maximale Gewichtsersparnis und zugleich eine erforderlich Mindestfestigkeit erreicht. Insbesondere weist der Innenrotor, in welchem Hydraulikkanäle zur Druckversorgung der Druckräume vorgesehen sind, eine gegenüber dem Außenrotor erhöhte Festigkeit auf.It is particularly advantageous if the inner rotor consists essentially of a light metal alloy and the outer rotor essentially consists of plastic. In this way, a maximum weight saving and at the same time a required minimum strength are achieved. In particular, the inner rotor, in which hydraulic channels are provided for supplying pressure to the pressure chambers, has greater strength than the outer rotor.
Bei einer Stelleinrichtung bei der die Rotorflügel von Innenrotor und Außenrotor miteinander korrespondieren und druckbeaufschlagbare Druckräume einschließen und die Druckräume in axialer Richtung mittels einer Abdeckscheibe abgedeckt sind, besteht vorzugsweise die Abdeckscheibe im Wesentlichen aus Kunststoff. Dadurch verringert sich das Gewicht der Stelleinrichtung nicht nur weiter, sondern es werden auch Materialkosten gespart und die Fertigung vereinfacht sich wesentlich.In the case of an actuating device in which the rotor blades of the inner rotor and outer rotor correspond to one another and enclose pressure spaces that can be pressurized and the pressure spaces are covered in the axial direction by means of a cover disk, the cover disk preferably consists essentially of plastic. This not only further reduces the weight of the actuating device, but also saves material costs and simplifies production considerably.
Zweckmäßigerweise ist der wenigstens eine Kontakt in den Rotorflügel des Außenrotors eingespritzt. Dies ermöglicht eine besonders wirtschaftliche und prozess- sowie funktionssichere Fertigung.The at least one contact is expediently injected into the rotor blade of the outer rotor. This enables particularly economical and process and functionally reliable production.
Von besonderem Vorteil ist es, wenn wenigstens ein erster Kontakt zur elektrischen Anschlagabfrage einer ersten Drehendlage und wenigstens ein zweiter Kontakt zur elektrischen Anschlagabfrage einer zweiten Drehendlage vorgesehen ist, sodass eine elektrische Anschlagabfrage beider Drehendlagen ermöglicht ist. Dabei hat es sich als günstig erwiesen, den wenigstens einen ersten Kontakt und den wenigstens einen zweiten Kontakt jeweils zwei benachbarten Rotorflügeln des Außenrotors zuzuordnen. Vorzugsweise wirken der wenigstens eine erste Kontakt und der wenigstens eine zweite Kontakt mit demselben Rotorflügel des Innenrotors zusammen. Dadurch ergibt sich eine besonders hohe Genauigkeit bei der Drehendlagenabfrage und außerdem ergeben sich Vorteile beim Anschluss der Kontakte, da diese nahe beieinander liegen.It is particularly advantageous if at least one first contact is provided for electrical stop interrogation of a first rotational end position and at least one second contact for electrical stop interrogation of a second rotational end position, so that an electrical stop interrogation of both rotational end positions is made possible. It has proven to be advantageous to assign the at least one first contact and the at least one second contact to two adjacent rotor blades of the outer rotor. The at least one first contact and the at least one second contact preferably interact with the same rotor blade of the inner rotor. This results in a particularly high level of accuracy in querying the rotational end position and also has advantages when connecting the contacts, since they are close to one another.
Nachfolgend ist ein besonders zu bevorzugendes Ausführungsbeispiel der Erfindung unter Bezugnahme auf die einzige Figur, welche schematisch und beispielhaft einen Ausschnitt einer Stelleinrichtung zur relativen Winkelverstellung Nockenwelle einer Brennkraftmaschine zu einer Kurbelwelle einer Brennkraftmaschine in Schnittdarstellung zeigt, näher erläutert.A particularly preferred embodiment of the invention is explained in more detail below with reference to the single FIGURE, which schematically and by way of example shows a section of an actuating device for the relative angular adjustment of the camshaft of an internal combustion engine to a crankshaft of an internal combustion engine.
Die Stelleinrichtung
Innenrotor
Innenrotor
Zur Bestimmung und/oder Verifizierung der relativen Winkelstellung zwischen Nockenwelle und Kurbelwelle sind elektrische Kontakte
Der Innenrotor
Die Kontakte
Die Kontakte
In axialer Richtung sind die Druckräume
Indem mit der erfindungsgemäßen Stelleinrichtung
Nach einem Heißstopp der Brennkraftmaschine entleert sich die Stelleinrichtung
Mögliche Probleme mit einer Arretier- oder Verriegelungseinrichtung entfallen, da bei der erfindungsgemäßen Stelleinrichtung
Aufgrund des Entfalles einer Arretier- oder Verriegelungseinrichtung ergäbe sich zunächst ein Problem bei der Steuerzeiteneinstellung. Die Stelleinrichtung
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102008023151.7A DE102008023151B4 (en) | 2007-08-29 | 2008-05-09 | Adjustment device for relative angle adjustment |
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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DE102007040680 | 2007-08-29 | ||
DE102007040680.2 | 2007-08-29 | ||
DE102007048665.2 | 2007-10-10 | ||
DE102007048665 | 2007-10-10 | ||
DE102008023151.7A DE102008023151B4 (en) | 2007-08-29 | 2008-05-09 | Adjustment device for relative angle adjustment |
Publications (2)
Publication Number | Publication Date |
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DE102008023151A1 DE102008023151A1 (en) | 2009-03-05 |
DE102008023151B4 true DE102008023151B4 (en) | 2021-08-05 |
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DE102008023151.7A Active DE102008023151B4 (en) | 2007-08-29 | 2008-05-09 | Adjustment device for relative angle adjustment |
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Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009031934A1 (en) | 2009-07-07 | 2011-01-13 | Schaeffler Technologies Gmbh & Co. Kg | Phaser |
DE102010008006A1 (en) | 2010-02-15 | 2011-08-18 | Schaeffler Technologies GmbH & Co. KG, 91074 | Impeller of a device for the variable adjustment of the timing of gas exchange valves of an internal combustion engine |
DE102012209532A1 (en) * | 2012-06-06 | 2013-12-12 | Schaeffler Technologies AG & Co. KG | Rotor for a hydraulic camshaft adjuster |
DE102012212858A1 (en) * | 2012-07-23 | 2014-01-23 | Schaeffler Technologies AG & Co. KG | Phaser |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612397A1 (en) | 1996-03-28 | 1997-10-02 | Bayerische Motoren Werke Ag | Adjusting device for the relative angle adjustment of a driven shaft, in particular camshaft of an internal combustion engine |
EP0831207A2 (en) | 1996-09-23 | 1998-03-25 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Adjusting device in a drive connection between shafts for varying the angular relationship of the driven shaft in particular for the camshaft of an internal combustion engine |
WO2003076771A1 (en) | 2002-03-12 | 2003-09-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters |
DE102005007942A1 (en) | 2004-02-27 | 2005-09-29 | Hydraulik-Ring Gmbh | Camshaft phasing device e.g. for vehicle engine, has stator and rotor which are placed relative to each other and rotatable with stator has wings with their faces sealing against surface of rotor |
DE102005041359A1 (en) | 2004-08-31 | 2006-03-09 | Hitachi, Ltd. | Valve timing control apparatus and associated method for its assembly |
DE102005026553B3 (en) | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Reduced-leakage adjuster for camshaft has a rotor consisting of at least cover and core, forming covered channel sector parallel to one side when in contact |
DE102007019923A1 (en) | 2007-04-27 | 2008-10-30 | Schaeffler Kg | Cam Phaser System |
EP1880086B1 (en) | 2005-05-03 | 2011-02-16 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster |
-
2008
- 2008-05-09 DE DE102008023151.7A patent/DE102008023151B4/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19612397A1 (en) | 1996-03-28 | 1997-10-02 | Bayerische Motoren Werke Ag | Adjusting device for the relative angle adjustment of a driven shaft, in particular camshaft of an internal combustion engine |
EP0831207A2 (en) | 1996-09-23 | 1998-03-25 | Bayerische Motoren Werke Aktiengesellschaft, Patentabteilung AJ-3 | Adjusting device in a drive connection between shafts for varying the angular relationship of the driven shaft in particular for the camshaft of an internal combustion engine |
WO2003076771A1 (en) | 2002-03-12 | 2003-09-18 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Drive for valve operating control systems in motor vehicles, preferably camshaft adjusters |
DE102005007942A1 (en) | 2004-02-27 | 2005-09-29 | Hydraulik-Ring Gmbh | Camshaft phasing device e.g. for vehicle engine, has stator and rotor which are placed relative to each other and rotatable with stator has wings with their faces sealing against surface of rotor |
DE102005041359A1 (en) | 2004-08-31 | 2006-03-09 | Hitachi, Ltd. | Valve timing control apparatus and associated method for its assembly |
EP1880086B1 (en) | 2005-05-03 | 2011-02-16 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster |
DE102005026553B3 (en) | 2005-06-08 | 2006-09-07 | Hydraulik-Ring Gmbh | Reduced-leakage adjuster for camshaft has a rotor consisting of at least cover and core, forming covered channel sector parallel to one side when in contact |
DE102007019923A1 (en) | 2007-04-27 | 2008-10-30 | Schaeffler Kg | Cam Phaser System |
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DE102008023151A1 (en) | 2009-03-05 |
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