DE102016219943A1 - Camshaft adjuster for variable valve control of an internal combustion engine - Google Patents
Camshaft adjuster for variable valve control of an internal combustion engine Download PDFInfo
- Publication number
- DE102016219943A1 DE102016219943A1 DE102016219943.9A DE102016219943A DE102016219943A1 DE 102016219943 A1 DE102016219943 A1 DE 102016219943A1 DE 102016219943 A DE102016219943 A DE 102016219943A DE 102016219943 A1 DE102016219943 A1 DE 102016219943A1
- Authority
- DE
- Germany
- Prior art keywords
- drive wheel
- combustion engine
- internal combustion
- ring
- camshaft
- 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.)
- Withdrawn
Links
Images
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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/1215—Leaf springs, e.g. radially extending
-
- 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
- F01L2250/00—Camshaft drives characterised by their transmission means
- F01L2250/02—Camshaft drives characterised by their transmission means the camshaft being driven by chains
-
- 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
- F01L2250/00—Camshaft drives characterised by their transmission means
- F01L2250/04—Camshaft drives characterised by their transmission means the camshaft being driven by belts
-
- 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
- F01L2250/00—Camshaft drives characterised by their transmission means
- F01L2250/06—Camshaft drives characterised by their transmission means the camshaft being driven by gear wheels
-
- 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
- F01L2301/02—Using ceramic materials
-
- 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
- F01L2810/00—Arrangements solving specific problems in relation with valve gears
- F01L2810/03—Reducing vibration
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Die Erfindung betrifft einen Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine, mit einem Antriebsrad (1) und einem Abtriebsrad (2) zum Antrieb einer Nockenwelle (3) der Brennkraftmaschine und einem Wellgetriebe als Verstellgetriebe mit einem elektrisch antreibbaren elliptischen Innenring (7), der mit einem elastisch verformbaren Ring (4) zur Kraftübertragung zusammenwirkt, dadurch gekennzeichnet, dass zur Reduzierung der im Betrieb auf den Ring (4) wirkenden dynamischen Belastungen an zumindest einer Stelle (X1, X2, X3, X4) zwischen Antriebsrad (1) und Abtriebsrad (2) und/oder zwischen diesen und einem relativ zum Antriebsrad (1) oder Abtriebsrad (2) beweglichen Bauteil (4, 5, 6) zumindest ein elastischer Schwingungsdämpfer (11) angeordnet ist. The invention relates to a camshaft adjuster for variable valve timing of an internal combustion engine, with a drive wheel (1) and a driven wheel (2) for driving a camshaft (3) of the internal combustion engine and a wave gear as adjusting with an electrically driven elliptical inner ring (7), with a elastically deformable ring (4) cooperates for transmitting power, characterized in that to reduce the operating in the ring (4) acting dynamic loads at least one point (X 1 , X 2 , X 3 , X 4 ) between the drive wheel (1) and the output gear (2) and / or between these and a relative to the drive wheel (1) or output gear (2) movable component (4, 5, 6) at least one elastic vibration damper (11) is arranged.
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft einen Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine gemäß der im Oberbegriff des Patentanspruchs 1 näher definierten Art.The invention relates to a camshaft adjuster for variable valve timing of an internal combustion engine according to the closer defined in the preamble of
Aus
Zusammenfassung der ErfindungSummary of the invention
Der Erfindung liegt daher die Aufgabe zugrunde, bei einem Nockenwellenversteller der vorgenannten Art die Dämpfung im Betrieb zu verbessern und im Aufbau zu vereinfachen und kostengünstig zu gestalten.The invention is therefore based on the object to improve at a camshaft adjuster of the aforementioned type, the damping during operation and to simplify the structure and to make cost-effective.
Die Aufgabe wird durch die Merkmale des Patentanspruchs 1 gelöst. Weitere vorteilhafte Ausgestaltungen ergeben sich aus der Beschreibung und den Zeichnungen.The object is solved by the features of
Es wird ein Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine, mit einem Antriebsrad und einem Abtriebsrad zum Antrieb einer Nockenwelle der Brennkraftmaschine und einem Wellgetriebe als Verstellgetriebe mit einem elektrisch antreibbaren elliptischen Innenring vorgeschlagen, der mit einem elastisch verformbaren Ring zur Kraftübertragung zusammenwirkt. Erfindungsgemäß ist zur Reduzierung der im Betrieb auf den elastischen Ring wirkenden dynamischen Belastungen an zumindest einer Stelle zwischen Antriebs- und Abtriebsrad und/oder zwischen diesen und einem relativ zum Antriebs- oder Abtriebsrad beweglichen Bauteil zumindest ein elastischer Schwingungsdämpfer angeordnet. Durch die erfindungsgemäße Ausgestaltung werden im Betrieb des Nockenwellenverstellers Schwingungen aus jedweder Richtung kommend kontinuierlich abgedämpft und die insbesondere auf den elastischen Ring wirkende dynamische Last reduziert. Auf diese Weise sind eine hohe Betriebssicherheit, ein robusteres, schwingungsunempfindlicheres Design mit einer Vermeidung von kritischen Resonanzen und eine Verlängerung der Lebensdauer der Einzelteile erreichbar. Der Nockenwellenverstellers ist so in Anwendungen mit großen dynamischen Lasten einsetzbar.It is a camshaft adjuster for variable valve timing of an internal combustion engine, proposed with a drive wheel and a driven gear for driving a camshaft of the internal combustion engine and a wave gear as adjusting with an electrically driven elliptical inner ring, which cooperates with an elastically deformable ring for transmitting power. According to the invention, to reduce the dynamic loads acting on the elastic ring during operation, at least one elastic vibration damper is arranged at least at one point between the drive and driven wheels and / or between them and a component that is movable relative to the drive or driven wheel. As a result of the configuration according to the invention, vibrations from any direction are continuously damped during operation of the camshaft adjuster and the dynamic load, in particular acting on the elastic ring, is reduced. In this way, high reliability, a more robust, vibration-resistant design with avoidance of critical resonances and an extension of the life of the items can be achieved. The camshaft adjuster is thus used in applications with large dynamic loads.
Das erfindungsgemäße Wellgetriebe ist als Verstellgetriebe außer in einem Nockenwellenversteller auch besonders vorteilhaft in anderen Verstelleinrichtungen, insbesondere zur Steuerung einer variablen Verdichtung einer Brennkraftmaschine, einsetzbar.The wave gear according to the invention is as adjustment except in a camshaft adjuster also particularly advantageous in other adjustment, in particular for controlling a variable compression of an internal combustion engine, can be used.
Figurenlistelist of figures
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den Zeichnungen, in denen mehrere Ausführungsbeispiele der Erfindung vereinfacht dargestellt sind. Es zeigen:
-
1 eine längsgeschnittene Teilansicht eines erfindungsgemäßen Nockenwellenverstellers, -
2 eine schematische Darstellung eines Dämpfungssystems des Nockenwellenverstellers, -
3 und4 perspektivische Einzelteilansichten des Nockenwellenverstellers.
-
1 a longitudinal sectional view of a camshaft adjuster according to the invention, -
2 a schematic representation of a damping system of the camshaft adjuster, -
3 and4 perspective item views of the camshaft adjuster.
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Der in
Das Abtriebsrad
Erfindungsgemäß ist vorgesehen, durch die Anordnung von zumindest einem Schwingungsdämpfer die hohen dynamischen Lasten auf den elastischen Ring
- X1: im axialen Spalt zwischen Axiallagerscheibe
5 undAbtriebsrad 2 , - X2: im radialen und im axialen Spalt zwischen
Antriebsrad 1 undAbtriebsrad 2 , - X3: im radialen und im axialen Spalt zwischen
Antriebsrad 1 undAnschlagscheibe 6 , - X4: im radialen und im axialen Spalt zwischen
elastischem Ring 3 undAbtriebsrad 2 .
- X 1 : in the axial gap between
thrust washer 5 andoutput gear 2 . - X 2 : in the radial and in the axial gap between the
drive wheel 1 andoutput gear 2 . - X 3 : in the radial and in the axial gap between the
drive wheel 1 and stopdisc 6 . - X 4 : in the radial and in the axial gap between the
elastic ring 3 andoutput gear 2 ,
Durch den Schwingungsdämpfer wird die Leistung aufgeteilt und ein Teil davon vernichtet.
Eine beispielhafte Anordnung eines Schwingungsdämpfers ist in
Die Anschlagscheibe
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Antriebsraddrive wheel
- 22
- Abtriebsradoutput gear
- 33
- Nockenwellecamshaft
- 44
- Ringring
- 55
- Axiallagerscheibeaxial bearing
- 6 6
- Anschlagscheibestop disc
- 77
- Innenringinner ring
- 88th
- Federkomponentespring component
- 99
- Dämpferkomponentedamper component
- 1010
- Nutgroove
- 1111
- Federelementspring element
- 1212
- Anschlagattack
- 1313
- Anschlagattack
- 1414
- Anschlagelementstop element
- 1515
- Nutgroove
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102011004069 A1 [0002]DE 102011004069 A1 [0002]
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016219943.9A DE102016219943A1 (en) | 2016-10-13 | 2016-10-13 | Camshaft adjuster for variable valve control of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016219943.9A DE102016219943A1 (en) | 2016-10-13 | 2016-10-13 | Camshaft adjuster for variable valve control of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102016219943A1 true DE102016219943A1 (en) | 2018-04-19 |
Family
ID=61765204
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102016219943.9A Withdrawn DE102016219943A1 (en) | 2016-10-13 | 2016-10-13 | Camshaft adjuster for variable valve control of an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102016219943A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018129521B3 (en) * | 2018-11-23 | 2020-03-19 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011004069A1 (en) | 2011-02-14 | 2012-08-16 | Schaeffler Technologies Gmbh & Co. Kg | 3-shaft adjusting gear with elastic coupling link |
-
2016
- 2016-10-13 DE DE102016219943.9A patent/DE102016219943A1/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011004069A1 (en) | 2011-02-14 | 2012-08-16 | Schaeffler Technologies Gmbh & Co. Kg | 3-shaft adjusting gear with elastic coupling link |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102018129521B3 (en) * | 2018-11-23 | 2020-03-19 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1774196B1 (en) | Device for transmitting a torque | |
EP2097657B1 (en) | Torsional vibration damper comprising a sectional primary element | |
EP1988306B1 (en) | Clutch disc | |
DE8103147U1 (en) | Damping disc for torque transmission | |
WO2008071306A1 (en) | Decoupler arrangement | |
WO2015032398A1 (en) | Centrifugal pendulum stop spring element, centrifugal pendulum device and component arrangement | |
EP3143299B1 (en) | Device for the transmission of a torque with torsional vibration damping | |
EP1801460B1 (en) | Drive unit with an inner drive element and an outer drive element | |
DE202010012227U1 (en) | Torsionally flexible shaft coupling | |
DE102016219943A1 (en) | Camshaft adjuster for variable valve control of an internal combustion engine | |
DE202019106382U1 (en) | Torsional vibration damping device with two flange elements with different friction torques; torque; Clutch disc and damper unit | |
DE102011079603A1 (en) | Clutch disc for a friction clutch | |
DE102016218975A1 (en) | Hub assembly for a shaft-hub connection | |
DE102011103495A1 (en) | Clutch shaft, actuator, camshaft variable speed gearbox and camshaft positioner | |
DE102010033503B4 (en) | Starter with dry freewheel | |
DE102004022511B4 (en) | Coupling device, in particular for a motor vehicle | |
DE102012213472A1 (en) | Torsional vibration damper for transmission of torque in drive train of motor vehicle, has input side and output side, which are arranged around rotational axis, where actuating flange is coupled with disk carrier by gear teeth | |
DE102017114444A1 (en) | Tilgereinrichtung | |
DE102017112032A1 (en) | Three-shaft transmission | |
DE102018109464A1 (en) | torsional vibration dampers | |
DE102011008703A1 (en) | Device for connecting component of vibration damper of combustion engine and output flange of speed change gear, has bolt and cup wheel which engage internal teeth of component and external teeth of output flange by biasing spring | |
DE102014118700A1 (en) | Device for transmitting torque from an internal combustion engine to an accessory | |
DE202019106788U1 (en) | Slip clutch with multi-flange torsional vibration damper for the drive train of a motor vehicle | |
DE102019123758A1 (en) | Wave gear for variable valve control of an internal combustion engine | |
DE102017102775A1 (en) | Coupling for connecting an electric motor and a transmission in an actuator for variable valve timing or adjustment of the compression of an internal combustion engine |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |