DE102018100405A1 - Electric camshaft adjuster for variable valve control in an internal combustion engine - Google Patents
Electric camshaft adjuster for variable valve control in an internal combustion engine Download PDFInfo
- Publication number
- DE102018100405A1 DE102018100405A1 DE102018100405.2A DE102018100405A DE102018100405A1 DE 102018100405 A1 DE102018100405 A1 DE 102018100405A1 DE 102018100405 A DE102018100405 A DE 102018100405A DE 102018100405 A1 DE102018100405 A1 DE 102018100405A1
- Authority
- DE
- Germany
- Prior art keywords
- camshaft adjuster
- internal combustion
- combustion engine
- lubricant
- variable valve
- 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- Withdrawn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
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 18
- 238000005461 lubrication Methods 0.000 claims abstract description 17
- 238000005538 encapsulation Methods 0.000 claims abstract description 15
- 239000002775 capsule Substances 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 7
- 238000010168 coupling process Methods 0.000 description 7
- 238000005859 coupling reaction Methods 0.000 description 7
- 230000001050 lubricating effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BUHVIAUBTBOHAG-FOYDDCNASA-N (2r,3r,4s,5r)-2-[6-[[2-(3,5-dimethoxyphenyl)-2-(2-methylphenyl)ethyl]amino]purin-9-yl]-5-(hydroxymethyl)oxolane-3,4-diol Chemical compound COC1=CC(OC)=CC(C(CNC=2C=3N=CN(C=3N=CN=2)[C@H]2[C@@H]([C@H](O)[C@@H](CO)O2)O)C=2C(=CC=CC=2)C)=C1 BUHVIAUBTBOHAG-FOYDDCNASA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- 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
- F01L1/024—Belt drive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M11/00—Component parts, details or accessories, not provided for in, or of interest apart from, groups F01M1/00 - F01M9/00
- F01M11/04—Filling or draining lubricant of or from machines or engines
- F01M11/0458—Lubricant filling and draining
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
- F01M9/106—Oil reservoirs
-
- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
-
- 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
- F01L2810/02—Lubrication
-
- 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 elektrischen Nockenwellenversteller zur variablen Ventilsteuerung in einer Brennkraftmaschine, dadurch gekennzeichnet, dass zum Einbringen einer Lebensdauerschmierung entsprechend portioniertes Schmiermittel in zumindest einer unter Betriebsbedigungen auflösbaren Kapselung (9) im Bereich zumindest einer Reib- bzw. Schmierstelle angeordnet ist. The invention relates to an electric camshaft adjuster for variable valve control in an internal combustion engine, characterized in that for introducing a lifetime lubrication portioned lubricant in at least one under operating conditions dissolvable encapsulation (9) is arranged in the region of at least one friction or lubrication point.
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft einen elektrischen Nockenwellenversteller zur variablen Ventilsteuerung in einer Brennkraftmaschine gemäß der im Oberbegriff des Patentanspruchs 1 näher definierten Art.The invention relates to an electric camshaft adjuster for variable valve timing in an internal combustion engine according to the closer defined in the preamble of
Ein derartiger elektrischer Nockenwellenversteller ist aus einem Nockenwellentrieb für eine Brennkraftmaschine nach
Zusammenfassung der ErfindungSummary of the invention
Der Erfindung liegt daher die Aufgabe zugrunde, einen Nockenwellenversteller der vorgenannten Art vorzuschlagen, bei dem die Herstellung und Montage hinsichtlich des Einbringens einer Lebensdauerschmierung vereinfacht und kostengünstig gestaltet ist. The invention is therefore based on the object to propose a camshaft adjuster of the aforementioned type, in which the production and assembly is simplified in terms of introducing a lifetime lubrication and designed cost.
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 elektrischer Nockenwellenversteller zur variablen Ventilsteuerung in einer Brennkraftmaschine vorgeschlagen, bei dem zum Einbringen einer Lebensdauerschmierung entsprechend portioniertes Schmiermittel in zumindest einer unter Betriebsbedingungen auflösbaren Kapselung im Bereich zumindest einer Reib- bzw. Schmierstelle angeordnet ist. Auf einfache und kostengünstige Weise kann so schon bei der Montage eine Lebensdauerschmierung im Nockenwellenversteller eingebracht werden, wodurch ein zusätzlicher Montageschritt wird vermieden. Zugleich wird eine schmiermittel- bzw. ölfreie Montage sowohl des elektrischen Nockenwellenverstellers als auch Endmontage desselben am Motor der Brennkraftmaschine beim Motorhersteller erreicht. Dadurch wird sichergestellt, dass die Montagelinien des Nockenwellenherstellers sowie die des Motorherstellers durch die Lebensdauerschmierung des elektrischen Nockenwellenverstellers nicht verschmutzt werden.An electric camshaft adjuster for variable valve control in an internal combustion engine is proposed in which portioned lubricant is disposed in at least one grating or lubricating point in at least one encapsulation which can be dissolved under operating conditions in order to introduce lifetime lubrication. In a simple and cost-effective manner, a lifetime lubrication can be introduced in the camshaft adjuster so even during assembly, whereby an additional assembly step is avoided. At the same time, a lubricant or oil-free installation of both the electric camshaft adjuster and final assembly thereof on the engine of the internal combustion engine is achieved at the engine manufacturer. This ensures that the assembly lines of the camshaft manufacturer and those of the engine manufacturer are not polluted by the lifetime lubrication of the electric camshaft adjuster.
Figurenlistelist of figures
Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung und aus den Zeichnungen, in denen die Erfindung vereinfacht dargestellt ist. Es zeigen:
-
1 einen Längsschnitt eines erfindungsgemäßen Nockenwellenverstellers zur variablen Ventilsteuerung in einer Brennkraftmaschine, -
2 eine Kupplung des elektrischen Nockenwellenverstellers, -
3 eine Kapselung zur Lebensdauerschmierung in einem ersten Ausführungsbeispiel, -
4 die in die Kupplung aus2 eingebrachte Kapselung aus3 des elektrischen Nockenwellenverstellers, -
5 eine Kapselung zur Lebensdauerschmierung in einem zweiten Ausführungsbeispiel.
-
1 a longitudinal section of a camshaft adjuster according to the invention for variable valve timing in an internal combustion engine, -
2 a clutch of the electric camshaft adjuster, -
3 an encapsulation for life lubrication in a first embodiment, -
4 in theclutch 2 introduced encapsulation3 the electric camshaft adjuster, -
5 an encapsulation for life lubrication in a second embodiment.
Ausführliche Beschreibung der ZeichnungenDetailed description of the drawings
Der in
Das Getriebe
Die Kapselung
Denkbar ist auch, das Lebensdauerschmiermittel in einem versiegelten Hohlraum eines topfartigen Gehäuses des Drive-Elements bzw. des Antriebsrad
Die Kapselung
Dabei löst sich die Kapsel erst nach Inbetriebnahme des Motors der Brennkraftmaschine bei einer höheren Betriebstemperatur, z.B. ab 60°C und höher auf und gibt die portionierte Schmiermittelmenge ins Getriebeinnere frei. Alternativ kann die Kapselung
Die Kapselung
Damit die Kapselhülle nach der Freigabe des Schmiermittels nicht in Kollision mit Getriebeteilen kommt, ist es zweckmäßig, dass das Kapselgehäuse form-, kraft- oder stoffschlüssig an einem Bauteil des Getriebes in einem ungestörten Bereich, z.B. im Inneren des Drive-Elements zu befestigten. Dafür kann alternativ auch mindestens ein versiegelter Hohlraum in einem oder mehreren Bauteilen des Nockenwellenverstellers genutzt werden.So that the capsule shell does not come into contact with gear parts after the release of the lubricant, it is expedient for the capsule housing to be connected in a form-fitting, force-fit or material-locking manner to a component of the gear unit in an undisturbed region, e.g. to be fastened inside the drive element. Alternatively, at least one sealed cavity in one or more components of the camshaft adjuster can be used for this purpose.
Das Antriebsrad
Der elektrische Stellantrieb
Durch den elektrischen Stellantrieb
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Getriebetransmission
- 22
- Kupplungclutch
- 33
- Stellantriebactuator
- 44
- Nockenwellecamshaft
- 55
- Gehäusecasing
- 66
- RadialwellendichtringRadial shaft seal
- 77
- RadialwellendichtringRadial shaft seal
- 8 8th
- Antriebsraddrive wheel
- 99
- Kapselungencapsulation
- 1010
- Kupplungsgehäuseclutch housing
- 1111
- Nabenabschnitthub portion
- 1212
- Mittelachsecentral axis
- 1313
- Motorwellemotor shaft
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 102004051423 A1 [0002]DE 102004051423 A1 [0002]
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018100405.2A DE102018100405A1 (en) | 2018-01-10 | 2018-01-10 | Electric camshaft adjuster for variable valve control in an internal combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102018100405.2A DE102018100405A1 (en) | 2018-01-10 | 2018-01-10 | Electric camshaft adjuster for variable valve control in an internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102018100405A1 true DE102018100405A1 (en) | 2019-07-11 |
Family
ID=66995284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE102018100405.2A Withdrawn DE102018100405A1 (en) | 2018-01-10 | 2018-01-10 | Electric camshaft adjuster for variable valve control in an internal combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE102018100405A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004051423A1 (en) | 2004-10-22 | 2006-05-04 | Ina-Schaeffler Kg | Camshaft drive for an internal combustion engine |
-
2018
- 2018-01-10 DE DE102018100405.2A patent/DE102018100405A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004051423A1 (en) | 2004-10-22 | 2006-05-04 | Ina-Schaeffler Kg | Camshaft drive for an internal combustion engine |
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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 |