DE102017106824A1 - 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
- DE102017106824A1 DE102017106824A1 DE102017106824.4A DE102017106824A DE102017106824A1 DE 102017106824 A1 DE102017106824 A1 DE 102017106824A1 DE 102017106824 A DE102017106824 A DE 102017106824A DE 102017106824 A1 DE102017106824 A1 DE 102017106824A1
- Authority
- DE
- Germany
- Prior art keywords
- housing
- sealing
- transmission
- ring
- drive
- 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- Withdrawn
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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
- F01L1/02—Valve drive
- F01L1/04—Valve drive by means of cams, camshafts, cam discs, eccentrics or the like
- F01L1/047—Camshafts
- F01L2001/0476—Camshaft bearings
-
- 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
- F01L2250/04—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
- F01L2301/00—Using particular 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/01—Absolute values
-
- 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
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/03—Auxiliary actuators
- F01L2820/032—Electric motors
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Die Erfindung betrifft einen Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine mit einem Getriebe (1) und einem dieses zumindest abschnittsweise umfassenden Gehäuse (2) sowie einem mit diesem drehfest verbundenen Antriebsrad (5) und einem Stellantrieb mit einem Elektromotor (4) und einer Kupplung (3) zur Übertragung eines Verstellmoments auf das Getriebe (1), dadurch gekennzeichnet, dass vom Antriebsrad (5) ein Antriebsmoment über das Gehäuse (2) auf das Getriebe (1) übertragbar ist, wobei zur Abdichtung des Getriebes (1) nockenwellenseitig am Gehäuse (2) ein erster Dichtkragen (9) mit einer ersten Dichtfläche (18) und ein an dieser anliegender erster Radialwellendichtring (11) und stellantriebsseitig ein zweiter Dichtkragen (14) mit einer zweiten Dichtfläche (19) und ein an dieser anliegender zweiter Radialwellendichtring (16) vorgesehen sind. The invention relates to a camshaft adjuster for variable valve control of an internal combustion engine having a gearbox (1) and a housing (2) comprising this at least in sections and a drive wheel (5) connected to it in a rotationally fixed manner and an actuator having an electric motor (4) and a clutch (3 ) for transmitting an adjusting torque to the transmission (1), characterized in that from the drive wheel (5) a drive torque via the housing (2) on the transmission (1) is transferable, wherein for sealing the transmission (1) camshaft side on the housing ( 2) a first sealing collar (9) having a first sealing surface (18) and a first radial shaft sealing ring (11) adjoining the latter and a second sealing collar (14) having a second sealing surface (19) and a second radial shaft sealing ring (16) adjoining the latter are provided.
Description
Die Erfindung betrifft einen Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine gemäß der im Oberbegriff des Patentanspruchs
Aus
Beispielsweise ist weiterhin aus
Zusammenfassung der ErfindungSummary of the invention
Der Erfindung liegt daher die Aufgabe zugrunde, einen Nockenwellenversteller der vorgenannten Art hinsichtlich der Abdichtung seines Getriebes zu vereinfachen und kostengünstig zu gestalten.The invention is therefore based on the object to simplify a camshaft adjuster of the aforementioned type with respect to the sealing of its transmission and to make it cost-effective.
Die Aufgabe wird durch die Merkmale des Patentanspruchs
Es wird ein Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine mit einem Getriebe, einem dieses zumindest abschnittsweise umfassenden Gehäuse und einem mit diesem drehfest verbundenen Antriebsrad vorgeschlagen, wobei durch einen Stellantrieb mit einem Elektromotor und einer Kupplung ein Verstellmoment auf das Getriebe übertragbar ist. Erfindungsgemäß ist am Nockenwellenversteller zumindest ein Dichtkragen zur Abdichtung des Getriebes vorgesehen, so dass am Antriebsrad des Nockenwellenverstellers ein Antrieb mit einem trocken laufenden Zahnriemen ermöglicht wird. Zugleich ist ein Antriebsmoment vom Antriebsrad über das Gehäuse direkt auf das Getriebe übertragbar. Vorzugsweise ist das Getriebe durch insgesamt zwei Dichtkragen am Nockenwellenversteller für zwei Radialwellendichtringe abgedichtet. Dabei ist nockenwellenseitig am Gehäuse ein erster Dichtkragen mit einem ersten Radialwellendichtring vorgesehen, während ein zweiter Dichtkragen stellantriebsseitig an der Frontseite des Nockenwellenverstellers für einen Radialwellendichtring am Elektromotor ausgebildet ist. Auf diese Weise wird durch eine Kombination aus zwei Dichtstellen für Radialwellendichtringe am Nockenwellenversteller eine einfache Abdichtung des ölführenden Raums des Getriebes gegenüber dem Antriebsrad erreicht, wodurch in besonders vorteilhafter Weise ein trocken laufender Riementrieb zum Antrieb des Nockenwellenverstellers einsetzbar ist.It is a camshaft adjuster for variable valve timing of an internal combustion engine with a gear, this at least partially comprehensive housing and a non-rotatably connected drive wheel proposed, with an adjusting with an electric motor and a clutch adjusting torque to the transmission is transferable. According to the invention, at least one sealing collar is provided on the camshaft adjuster for sealing the transmission, so that a drive with a dry-running toothed belt is made possible on the drive wheel of the camshaft adjuster. At the same time, a drive torque from the drive wheel via the housing is directly transferable to the transmission. Preferably, the transmission is sealed by a total of two sealing collar on the camshaft adjuster for two radial shaft seals. In this case, a first sealing collar with a first radial shaft sealing ring is provided on the camshaft side of the housing, while a second sealing collar is formed on the actuator side on the front side of the camshaft adjuster for a radial shaft sealing ring on the electric motor. In this way, a simple seal of the oil-carrying space of the transmission with respect to the drive wheel is achieved by a combination of two sealing points for radial shaft seals on the camshaft adjuster, whereby a dry-running belt drive for driving the camshaft adjuster is used in a particularly advantageous manner.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus der Zeichnung, in der ein Ausführungsbeispiel der Erfindung vereinfacht dargestellt ist. Die einzige Figur zeigt einen erfindungsgemäßen Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine in einer Schnittdarstellung.Further features of the invention will become apparent from the following description and from the drawing, in which an embodiment of the invention is shown in simplified form. The single FIGURE shows a camshaft adjuster according to the invention for the variable valve control of an internal combustion engine in a sectional view.
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Der beispielhaft dargestellte erfindungsgemäße elektrische Nockenwellenversteller zur variablen Ventilsteuerung einer Brennkraftmaschine weist ein Getriebe
Das Gehäuse
Das Gehäuse
An der Frontseite des Nockenwellenverstellers ist am antriebsseitigen Ende des Gehäuses 2 ein Ringelement
Erster und zweiter Dichtkragen
Das Motorgehäuse
Das Getriebe
Das Antriebshohlrad
Im Bereich der Kupplung
Zur Verstellung der Nockenwelle
Die Kupplung
Zur Begrenzung des Verstellbereichs des Abtriebshohlrads
Das Gehäuse
Die Nockenwelle
Das Gehäuse
Die Motorabdeckung
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Getriebetransmission
- 22
- Gehäusecasing
- 33
- Kupplungclutch
- 44
- Elektromotorelectric motor
- 55
- Antriebsraddrive wheel
- 66
- Nockenwellecamshaft
- 77
- Flanschflange
- 88th
- Schraubenverbindungscrew connection
- 99
- Dichtkragensealing collar
- 1010
- Motorwandmotor wall
- 1111
- RadialwellendichtringRadial shaft seal
- 1212
- Ringelementring element
- 1313
- Befestigungsflanschmounting flange
- 1414
- Dichtkragensealing collar
- 1515
- Motorgehäusemotor housing
- 1616
- RadialwellendichtringRadial shaft seal
- 1717
- Motorwellemotor shaft
- 1818
- Dichtflächesealing surface
- 1919
- Dichtflächesealing surface
- 2020
- FlexringFlexring
- 2121
- Antriebshohlraddrive internal gear
- 2222
- Abtriebshohlradoutput ring
- 2323
- Zentralschraubecentral screw
- 2424
- Deckelcover
- 2525
- Antriebselementdriving element
- 2626
- Anschlagringstop ring
- 2727
- Anschlagscheibestop disc
- 2828
- Motorabdeckungengine cover
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 102004062037 A1 [0002]DE 102004062037 A1 [0002]
- DE 102015112032 A1 [0003]DE 102015112032 A1 [0003]
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017106824.4A DE102017106824A1 (en) | 2017-03-30 | 2017-03-30 | Camshaft adjuster for variable valve control of an internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017106824.4A DE102017106824A1 (en) | 2017-03-30 | 2017-03-30 | Camshaft adjuster for variable valve control of an internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102017106824A1 true DE102017106824A1 (en) | 2018-10-04 |
Family
ID=63525389
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102017106824.4A Withdrawn DE102017106824A1 (en) | 2017-03-30 | 2017-03-30 | Camshaft adjuster for variable valve control of an internal combustion engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102017106824A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020177800A1 (en) | 2019-03-01 | 2020-09-10 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster with an improved arrangement of a radial shaft sealing ring |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004062037A1 (en) | 2004-12-23 | 2006-07-20 | Schaeffler Kg | Phaser |
DE102015112032A1 (en) | 2014-07-23 | 2016-01-28 | Ovalo Gmbh | Stress wave transmission and method of manufacturing a stress wave transmission |
-
2017
- 2017-03-30 DE DE102017106824.4A patent/DE102017106824A1/en not_active Withdrawn
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004062037A1 (en) | 2004-12-23 | 2006-07-20 | Schaeffler Kg | Phaser |
DE102015112032A1 (en) | 2014-07-23 | 2016-01-28 | Ovalo Gmbh | Stress wave transmission and method of manufacturing a stress wave transmission |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020177800A1 (en) | 2019-03-01 | 2020-09-10 | Schaeffler Technologies AG & Co. KG | Camshaft adjuster with an improved arrangement of a radial shaft sealing ring |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |