DE102009028336A1 - Cam shaft adjuster for adjusting and holding phase position of cam shaft to crankshaft of internal-combustion engine, has sheet metal plate coaxially fastened to stator in such adjustment that axes of pin and hole are aligned to each other - Google Patents
Cam shaft adjuster for adjusting and holding phase position of cam shaft to crankshaft of internal-combustion engine, has sheet metal plate coaxially fastened to stator in such adjustment that axes of pin and hole are aligned to each other Download PDFInfo
- Publication number
- DE102009028336A1 DE102009028336A1 DE102009028336A DE102009028336A DE102009028336A1 DE 102009028336 A1 DE102009028336 A1 DE 102009028336A1 DE 102009028336 A DE102009028336 A DE 102009028336A DE 102009028336 A DE102009028336 A DE 102009028336A DE 102009028336 A1 DE102009028336 A1 DE 102009028336A1
- Authority
- DE
- Germany
- Prior art keywords
- stator
- sheet metal
- rotor
- piston
- hole
- 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.)
- Ceased
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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
- F01L1/3442—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
-
- 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
- F01L2001/3445—Details relating to the hydraulic means for changing the angular relationship
- F01L2001/34453—Locking means between driving and driven members
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
Description
Stand der TechnikState of the art
Die Erfindung geht aus von einem Nockenwellenversteller zum Einstellen und Halten der Phasenlage der Nockenwelle zu einer Kurbelwelle einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The The invention is based on a camshaft adjuster for adjustment and maintaining the phase angle of the camshaft to a crankshaft of an internal combustion engine according to the preamble of claim 1.
Ein
bekannten Nockenwellenversteller, z. B. Flügelzellennockenwellenversteller
(
Um zu verhindern, dass die Ausbuchtungen oder Flügel des Rotors in Phasen unzureichender Druckmittelversorgung, wie beispielsweise während der Startphase der Brennkraftmaschine, unkontrolliert zwischen ihren Endpositionen oszillieren, ist der Nockenwellenversteller mit einer Verriegelungsvorrichtung versehen, die den Rotor in diesen Phasen in einer definierten Phasenlage zum Stator hält. Hierzu ist in einer axialen Bohrung des Rotors ein topfartig ausgeführter Kolben von einer Spiralfeder in Richtung der einen Seitenwand beaufschlagt, in der eine Kulisse zum Eintauchen des Kolbens ausgebildet ist. In Phasen ungenügender Druckmittelversorgung wird der Kolben durch die Federkraft in der Kulisse gehalten. Zur Deaktivierung der Verriegelungsvorrichtung wird die in die Kulisse eingreifende Stirnseite des Kolbens mit Druckmittel beaufschlagt, wodurch der Kolben entgegen der Federkraft der Spiralfeder in die Axialbohrung des Rotors verschoben wird.Around to prevent the bulges or wings of the rotor in phases of insufficient pressure medium supply, such as during the starting phase of the internal combustion engine, uncontrolled oscillate between their end positions, is the camshaft adjuster provided with a locking device, which the rotor in this Keeps phases in a defined phase to the stator. For this purpose, a pot-shaped executed in an axial bore of the rotor Piston acted upon by a spiral spring in the direction of a side wall, in which a backdrop for immersing the piston is formed. In Phases of insufficient pressure medium supply is the piston held by the spring force in the backdrop. For deactivation the locking device is the engaging in the backdrop Front side of the piston subjected to pressure medium, whereby the Piston against the spring force of the coil spring in the axial bore of the rotor is moved.
Bei
einem ebenfalls bekannten Nockenwellenversteller (
Zur Erzielung eines geringen Massenträgheitsmoment des Ventiltriebs der Brennkraftmaschine wird der Nockenwellenversteller aus Aluminium gefertigt. Da der Verriegelungsbolzen aus Stahl besteht und das Aluminium des Stators relativ welch ist, müssen Maßnahmen getroffen werden, um eine robuste Verblockung zwischen Stator und Rotor zu erreichen. Bekannt ist bereits, in den Stator einen Stahlring einzupressen, in dem der Endabschnitt des Verriegelungsbolzens aufgenommen wird. Durch die unterschiedlichen Wärmeausdehnungskoeffizienten von Stahl und Aluminium entstehen bei Temperaturschwankungen jedoch neue Probleme.to Achieving a low moment of inertia of the valve train the internal combustion engine, the camshaft adjuster is made of aluminum. Since the locking bolt is made of steel and the aluminum of the Stators relatively which, measures must be taken to provide a robust interlock between the stator and rotor to reach. It is already known to press a steel ring into the stator, in which the end portion of the locking bolt is received. Due to the different thermal expansion coefficients of However, steel and aluminum are produced by temperature fluctuations new problems.
Offenbarung der ErfindungDisclosure of the invention
Der erfindungsgemäße Nockenwellenversteller mit den Merkmalen des Anspruchs 1 hat den Vorteil, dass im Gegensatz zum Herstellen und Einpressen eines Stahlrings eine Blechplatine aus feingeschnittenem, kalibriertem Blech sehr viel kostengünstiger ist und im Kontaktbereich von Verriegelungsbolzen und Eintauchloch die gleichen Materialien vorhanden sind, sodass die Kontaktstellen zwischen Rotor und Stator tribologisch optimiert sind.Of the Camshaft adjuster according to the invention with the Features of claim 1 has the advantage that, in contrast to Manufacture and press in a steel ring from a sheet metal blank finely cut, calibrated sheet metal much cheaper is and in the contact area of locking bolt and immersion hole the same materials are present, so the contact points are optimized tribologically between rotor and stator.
Durch die in den weiteren Ansprüchen aufgeführten Maßnahmen sind vorteilhafte Weiterbildungen und Verbesserungen des im Anspruch 1 angegebenen Nockenwellenverstellers möglich.By in the further claims Measures are advantageous developments and improvements of claim 1 camshaft adjuster possible.
Gemäß einer vorteilhaften Ausführungsform der Erfindung ist der Stator stirnseitig mit einem Deckel abgeschlossen und die Blechplatine zwischen Stator und Deckel axial eingeklemmt. Durch diese konstruktive Maßnahme wird der Montageaufwand reduziert.According to one advantageous embodiment of the invention is the stator closed at the end with a lid and the sheet metal blank between the stator and lid axially clamped. Through this constructive Measure the installation effort is reduced.
Gemäß einer vorteilhaften Ausführungsform der Erfindung ist im Deckel eine von der Blechplatine abgedeckte, axial hinter dem Eintauchloch angeordnete Vertiefung und in der Blechplatine ein Zuführloch für das Zuführen von Druckmittel in die Vertiefung vorhanden. Der Verriegelungsbolzen ist als federbelasteter Stellkolben mit einer von dem Druckmittel beaufschlagbaren Kolbenflächen zum gegen die Federkraft gerichteten Ausschieben aus dem Eintauchloch ausgebildet, der in Verriegelungsposition durch das Eintauchloch hindurch in die Vertiefung hineinragt, wobei an dem in die Vertiefung eintauchenden Stirnende des Stellkolbens die Kolbenfläche ausgebildet ist. Durch Beaufschlagen der Vertiefung mit Druckmittel wird der Stellkolben gegen Federkraft aus der Blechplatine ausgeschoben und die Verriegelung von Rotor und Stator gelöst.According to one advantageous embodiment of the invention is in the lid one covered by the sheet metal blank, axially behind the immersion hole arranged recess and in the metal sheet a feed hole for supplying pressure medium into the depression available. The locking bolt is as a spring-loaded actuating piston with an acted upon by the pressure medium piston surfaces for pushing against the spring force out of the immersion hole formed in the locking position by the immersion hole protrudes into the recess, wherein on the in the recess immersed front end of the actuating piston, the piston surface formed is. By applying the depression with pressure medium is the Actuator piston against spring force from the sheet metal plate pushed out and released the locking of rotor and stator.
Gemäß einer vorteilhaften Ausführungsform der Erfindung wird die Vertiefung im Deckel als bogenförmige Nut ausgebildet, deren Nutbreite größer ist als der Durchmesser des Endabschnitts des Stellkolbens. Durch eine unterschiedliche Lage des Zuführlochs in der Blechplatine kann der gleiche Deckel sowohl bei einem Nockenwellenversteller für die die Einlassventile der Brennkraftmaschine betätigenden Nockenwelle (Einlasssteller) als auch für die die Auslassventile der Brennkraftmaschine betätigenden Nockenwelle (Auslasssteller) verwendet werden. Entsprechend der Verwendung des Nockenwellenverstellers als Einlass- oder Auslasssteller wird das Zuführloch für das Druckmittel in der Blechplatine, in Umfangsrichtung der bogenförmigen Nut gesehen, links oder rechts von dem Eintauchloch für den Verriegelungsbolzen gebohrt.According to one advantageous embodiment of the invention is the recess formed in the lid as an arcuate groove whose groove width greater than the diameter of the end section of the adjusting piston. By a different position of the feed hole in the sheet metal plate can be the same cover both in a camshaft adjuster for the camshaft actuating the intake valves of the internal combustion engine (Inlet plate) as well as for the exhaust valves of the Internal combustion engine actuating camshaft (exhaust actuator) be used. According to the use of the camshaft adjuster as an inlet or outlet plate is the feed hole for the pressure medium in the sheet metal blank, in the circumferential direction of the arcuate Groove seen, left or right of the dip hole for Drilled the locking bolt.
Kurze Beschreibung der ZeichnungenBrief description of the drawings
Die Erfindung ist anhand von in den Zeichnungen dargestellten Ausführungsbeispielen in der nachfolgenden Beschreibung näher erläutert. Es zeigen:The The invention is based on embodiments shown in the drawings explained in more detail in the following description. Show it:
Der
in
Da
in der Startphase der Brennkraftmaschine noch kein Druckmittel-
bzw. Öldruck aufgebaut ist und der Nockenwellenversteller
eine definierte Position eingenommen haben muss, ist eine Verriegelungsvorrichtung
Das
statorseitige Eintauchloch
Der
aus Stahl hergestellte, durch die Stellfeder
Gemäß einer
Modifizierung des Nockenwellenverstellers, wie diese ausschnittweise
in
Auslasssteller
wird das Zuführloch
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES 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 The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - DE 102004038160 A1 [0002] - DE 102004038160 A1 [0002]
- - DE 602005001122 T2 [0004, 0016] - DE 602005001122 T2 [0004, 0016]
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009028336A DE102009028336A1 (en) | 2009-08-07 | 2009-08-07 | Cam shaft adjuster for adjusting and holding phase position of cam shaft to crankshaft of internal-combustion engine, has sheet metal plate coaxially fastened to stator in such adjustment that axes of pin and hole are aligned to each other |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009028336A DE102009028336A1 (en) | 2009-08-07 | 2009-08-07 | Cam shaft adjuster for adjusting and holding phase position of cam shaft to crankshaft of internal-combustion engine, has sheet metal plate coaxially fastened to stator in such adjustment that axes of pin and hole are aligned to each other |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102009028336A1 true DE102009028336A1 (en) | 2011-02-10 |
Family
ID=43429980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102009028336A Ceased DE102009028336A1 (en) | 2009-08-07 | 2009-08-07 | Cam shaft adjuster for adjusting and holding phase position of cam shaft to crankshaft of internal-combustion engine, has sheet metal plate coaxially fastened to stator in such adjustment that axes of pin and hole are aligned to each other |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102009028336A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013224857A1 (en) * | 2013-12-04 | 2015-07-16 | Schaeffler Technologies AG & Co. KG | Camshaft adjustment device |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004038160A1 (en) | 2004-05-14 | 2005-12-08 | Ina-Schaeffler Kg | Phaser |
DE602005001122T2 (en) | 2004-02-27 | 2008-01-10 | Delphi Technologies, Inc., Troy | Bolt lock for vane camshaft adjuster |
-
2009
- 2009-08-07 DE DE102009028336A patent/DE102009028336A1/en not_active Ceased
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE602005001122T2 (en) | 2004-02-27 | 2008-01-10 | Delphi Technologies, Inc., Troy | Bolt lock for vane camshaft adjuster |
DE102004038160A1 (en) | 2004-05-14 | 2005-12-08 | Ina-Schaeffler Kg | Phaser |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013224857A1 (en) * | 2013-12-04 | 2015-07-16 | Schaeffler Technologies AG & Co. KG | Camshaft adjustment device |
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---|---|---|---|
R012 | Request for examination validly filed | ||
R002 | Refusal decision in examination/registration proceedings | ||
R003 | Refusal decision now final |