DE102007056550A1 - Modular built-up camshaft adjuster with chain or belt pulley - Google Patents
Modular built-up camshaft adjuster with chain or belt pulley Download PDFInfo
- Publication number
- DE102007056550A1 DE102007056550A1 DE102007056550A DE102007056550A DE102007056550A1 DE 102007056550 A1 DE102007056550 A1 DE 102007056550A1 DE 102007056550 A DE102007056550 A DE 102007056550A DE 102007056550 A DE102007056550 A DE 102007056550A DE 102007056550 A1 DE102007056550 A1 DE 102007056550A1
- Authority
- DE
- Germany
- Prior art keywords
- wheel
- wall
- camshaft adjuster
- annular
- chain
- 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- Withdrawn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
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
- 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
- F01L2303/00—Manufacturing of components used in valve arrangements
Abstract
Description
Gebiet der ErfindungField of the invention
Die Erfindung betrifft einen modular aufgebauten Nockenwellenversteller mit Ketten- oder Riemenrad für den Nockenwellenantrieb einer Brennkraftmaschine mit den Merkmalen des Oberbegriffs des Anspruchs 1.The The invention relates to a modular camshaft adjuster with chain or pulley for the camshaft drive an internal combustion engine having the features of the preamble of Claim 1.
Nockenwellen von Brennkraftmaschinen werden meistens über eine Kette oder einen Zahnriemen von Kurbelwellen angetrieben und dabei in einem geschlossenen Regelkreis kontinuierlich verstellt, wobei typische Verstellbereiche bei 40 bis 60° Kurbelwinkel liegen. Einzustellende Kurbelwinkel sind in Kennfeldern hinterlegt. Verstellungen erfolgen z. B. hydraulisch, gespeist aus dem Motorölkreis über ein elektrisch betätigtes Steuerventil und ermöglichen optimierte Ventilsteuerzeiten über die Parameter Motorlast und -drehzahl. Je nach Motorkonzept und Anzahl der Versteller ist so eine deutliche Absenkung von Kraftstoffverbrauch und Abgasemissionen sowie eine Steigerung von Leistung und Drehmoment erreichbar.camshafts of internal combustion engines are mostly via a chain or a timing belt driven by crankshafts while in a closed loop continuously adjusted, with typical Adjustment ranges are at 40 to 60 ° crank angle. adjusted Crank angles are stored in maps. Adjustments are made z. B. hydraulically, fed from the engine oil circuit via a electrically operated control valve and allow optimized valve timing via the parameters engine load and speed. Depending on the engine concept and number of adjusters is such a significant reduction in fuel consumption and exhaust emissions as well an increase in power and torque achievable.
Bekannt
ist aus der
Bekannt
ist aus der
Topfförmige Ketten- oder Riemenräder geringer Masse weisen entsprechend eingeschränkte Stabilität auf und verformen sich unter hohen Lasten aus antreibenden Ketten oder Riemen, was den Nockenwellenantrieb beeinträchtigen und so zu Motorschäden führen kann.pot-shaped Chain or pulleys of low mass have accordingly limited stability and deform under heavy loads of driving chains or belts, causing the Camshaft drive affect and so to engine damage can lead.
Aufgabe der Erfindung ist es, einen modular aufgebauten Nockenwellenversteller mit einem Ketten- oder Riemenrad für den Nockenwellenantrieb einer Brennkraftmaschine mit verbesserter Tragfähigkeit bei geringer Gesamtmasse zu schaffen.task The invention is a modular camshaft adjuster with a chain or pulley for the camshaft drive an internal combustion engine with improved load capacity to create at low total mass.
Die Lösung erfolgt mit einem modular aufgebauten Nockenwellenversteller mit Ketten- oder Riemenrad für den Nockenwellenantrieb einer Brennkraftmaschine mit den Merkmalen des Anspruchs 1. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen dargestellt.The Solution is done with a modular camshaft adjuster with chain or pulley for the camshaft drive an internal combustion engine with the features of claim 1. Advantageous Embodiments are shown in the subclaims.
Gemäß der Erfindung weist ein modular aufgebauter Nockenwellenversteller für einen Nockenwellenantrieb einer Brennkraftmaschine ein Ketten- oder Riemenrad auf mit einem ringförmigen Radbett um eine zentrale, kreisförmige Öffnung zur Aufnahme einer Nockenwelle, auf der das Ketten- oder Riemenrad über einen Rotor des Nockenwellenverstellers gelagert ist. Radial nach außen gerichtet ist am Ketten- oder Riemenrad mindestens ein Radkranz mit Zahneingriffstiefen Z vorgesehen. Eine im wesentlichen zylindrische Radwand mit einer Mindestwandstärke X kragt in axialer Richtung vom ringförmigen Radbett an dessen äußerem Umfang frei aus und bildet mit dem Radbett eine Topfform, wobei für ausreichende Tragfähigkeit die Mindestwandstärke X der von dem ringförmigen Radbett auskragenden Radwand unterhalb des mindestens einen Radkranzes gleich der halben Zahneingriffstiefe Z ist. Mindestens ein Radkranz ist im auskragenden Bereich der Radwand angeordnet. Erfindungsgemäß ist das topfförmige Ketten- oder Riemenrad für reduziertes Gewicht aus einem Leichtbauwerkstoff wie Aluminium gefertigt. Radial verteilte Bohrungen im ringförmigen Radbett dienen zur koaxialen Montage des Ketten- oder Riemenrads an einen Stator des Nockenwellenverstellers. Vorteilhaft ist so auch der besonders große Verzug von topfförmigen Ketten- oder Riemenrädern nach einer Wärmebehandlung reduziert.According to the Invention has a modular camshaft adjuster for a camshaft drive an internal combustion engine a chain or Pulley on with an annular wheel bed around a central, circular opening for receiving a camshaft, on the chain or pulley via a rotor of the Camshaft adjuster is mounted. Radially outward is directed at the chain or pulley with at least one rim Tooth engagement depths Z provided. A substantially cylindrical Wheel wall with a minimum wall thickness X cantilevers in axial Direction from the annular wheel bed to the outer Circumference freely and forms with the wheel bed a pot shape, wherein for sufficient carrying capacity the minimum wall thickness X of the projecting from the annular Radbett wheel wall below the at least one wheel rim equal to half the tooth mesh depth Z is. At least one wheel rim is in the projecting area of the wheel wall arranged. According to the invention, the cup-shaped Chain or pulley for reduced weight from one Made of lightweight material such as aluminum. Radially distributed holes in the annular Radbett serve for coaxial mounting of the Chain or pulley to a stator of the camshaft adjuster. Also advantageous is the particularly large delay of cup-shaped chain or pulleys after a Heat treatment reduced.
Gemäß einer vorteilhaften Ausgestaltung der Erfindung ist das topfförmige Ketten- oder Riemenrad mit mindestens einer im wesentlichen radial gerichteten Versteifungsrippe vom ringförmigen Radbett zur Radwand versehen zur gewichtsoptimierten Versteifung am Umfang des topfförmigen Ketten- oder Riemenrads.According to one advantageous embodiment of the invention is the cup-shaped Chain or pulley with at least one substantially radial directed stiffening rib from the annular wheel bed To the wheel wall provided for weight-optimized stiffening on the circumference the cup-shaped chain or pulley.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist rundum eine Versteifung vom ringförmigen Radbett zur im wesentlichen kegelstumpfförmigen Radwand vorgesehen zur gleichmäßigen Versteifung am Umfang des topfförmigen Ketten- oder Riemenrads.According to another advantageous embodiment staltung of the invention is provided all around a stiffening of the annular wheel bed to the substantially frusto-conical wheel wall for uniform stiffening on the circumference of the cup-shaped chain or pulley.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung kragt die Radwand vom äußeren Rand der dem Nockenwellenversteller abgewandten Seite des Nockenwellenverstellers aus.According to one further advantageous embodiment of the invention, the wheel wall protrudes from the outer edge of the camshaft adjuster facing away from the camshaft adjuster off.
Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung sind die Versteifungsrippen in einem Winkel, stufig oder mit Rundungen ausgestaltet zur Optimierung der Versteifung bei konstruktiven Gegebenheiten und Lastverhältnissen.According to one Another advantageous embodiment of the invention, the stiffening ribs at an angle, in stages or with curves designed for optimization the stiffening of structural conditions and load conditions.
Die Erfindung wird im folgenden anhand bevorzugter Ausführungsbeispiele dargelegt. Es zeigen:The Invention will be described below with reference to preferred embodiments explained. Show it:
Am äußeren
Umfang des ringförmigen Radbetts
Die
zylindrische Radwand
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
- - US 2005/0051121 A1 [0003] US 2005/0051121 A1 [0003]
- - DE 10303991 A1 [0004, 0004] - DE 10303991 A1 [0004, 0004]
Claims (6)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007056550A DE102007056550A1 (en) | 2007-11-23 | 2007-11-23 | Modular built-up camshaft adjuster with chain or belt pulley |
CN200880117535XA CN101970810B (en) | 2007-11-23 | 2008-11-04 | Modular construction camshaft adjuster with a chain or belt wheel |
US12/744,142 US20100242876A1 (en) | 2007-11-23 | 2008-11-04 | Modular construction camshaft adjuster with a chain or belt wheel |
AT08852005T ATE529614T1 (en) | 2007-11-23 | 2008-11-04 | MODULAR CAMSHAFT ADJUSTER WITH CHAIN OR BELT WHEEL |
EP08852005A EP2215333B1 (en) | 2007-11-23 | 2008-11-04 | Modular construction camshaft adjuster with a chain or belt wheel |
PCT/EP2008/064943 WO2009065731A1 (en) | 2007-11-23 | 2008-11-04 | Modular construction camshaft adjuster with a chain or belt wheel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007056550A DE102007056550A1 (en) | 2007-11-23 | 2007-11-23 | Modular built-up camshaft adjuster with chain or belt pulley |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102007056550A1 true DE102007056550A1 (en) | 2009-05-28 |
Family
ID=40566274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102007056550A Withdrawn DE102007056550A1 (en) | 2007-11-23 | 2007-11-23 | Modular built-up camshaft adjuster with chain or belt pulley |
Country Status (6)
Country | Link |
---|---|
US (1) | US20100242876A1 (en) |
EP (1) | EP2215333B1 (en) |
CN (1) | CN101970810B (en) |
AT (1) | ATE529614T1 (en) |
DE (1) | DE102007056550A1 (en) |
WO (1) | WO2009065731A1 (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10303991A1 (en) | 2003-02-01 | 2004-08-05 | Hydraulik-Ring Gmbh | Device for adjusting a camshaft of an internal combustion engine of a motor vehicle |
US20050051121A1 (en) | 2003-09-05 | 2005-03-10 | Borgwarner Inc. | Variable camshaft timing phaser having a housing and a driving element of two different materials |
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JPH0547309U (en) * | 1991-11-28 | 1993-06-22 | 株式会社ユニシアジェックス | Valve timing control device for internal combustion engine |
JP3014893B2 (en) * | 1993-05-19 | 2000-02-28 | 株式会社デンソー | Valve timing adjustment device |
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JP3744594B2 (en) * | 1996-05-15 | 2006-02-15 | アイシン精機株式会社 | Valve timing control device |
JP3116858B2 (en) * | 1996-11-29 | 2000-12-11 | トヨタ自動車株式会社 | Variable valve timing mechanism for internal combustion engine |
JP3620684B2 (en) * | 1997-01-31 | 2005-02-16 | 株式会社デンソー | Valve timing adjusting device for internal combustion engine |
JP3760566B2 (en) * | 1997-06-05 | 2006-03-29 | アイシン精機株式会社 | Valve timing control device |
US6311654B1 (en) * | 1998-07-29 | 2001-11-06 | Denso Corporation | Valve timing adjusting device |
JP3983457B2 (en) * | 2000-06-22 | 2007-09-26 | 株式会社日立製作所 | Valve timing changing device for internal combustion engine |
JP2002180809A (en) * | 2000-10-04 | 2002-06-26 | Denso Corp | Method of manufacturing valve timing adjusting device |
DE10134320A1 (en) * | 2001-07-14 | 2003-01-23 | Ina Schaeffler Kg | Device for changing the control times of gas shuttle valves in internal combustion engines comprises a driven unit axially, radially and peripherally locked on a sleeve and screwed in a deformation-free manner on a camshaft |
US6732688B2 (en) * | 2001-08-10 | 2004-05-11 | Unisia Jecs Corporation | Valve timing control system for internal combustion engine |
DE10163791A1 (en) * | 2001-12-22 | 2003-07-03 | Ina Schaeffler Kg | Device for alteration of control times for gas change valves in an internal combustion engine comprises an additional light-metal annular disk between a steel end cover and the light-metal stator |
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DE10331631B3 (en) * | 2003-06-30 | 2005-01-05 | Ehw Thale Sintermetall Gmbh | Component used in a camshaft adjusting device comprises functional part of sintered aluminum and power transmission part of sintered steel |
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DE10358888B4 (en) * | 2003-12-16 | 2018-12-27 | Schaeffler Technologies AG & Co. KG | Internal combustion engine with a hydraulic device for adjusting the rotational angle of a camshaft relative to a crankshaft |
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-
2007
- 2007-11-23 DE DE102007056550A patent/DE102007056550A1/en not_active Withdrawn
-
2008
- 2008-11-04 EP EP08852005A patent/EP2215333B1/en not_active Not-in-force
- 2008-11-04 CN CN200880117535XA patent/CN101970810B/en not_active Expired - Fee Related
- 2008-11-04 AT AT08852005T patent/ATE529614T1/en active
- 2008-11-04 WO PCT/EP2008/064943 patent/WO2009065731A1/en active Application Filing
- 2008-11-04 US US12/744,142 patent/US20100242876A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10303991A1 (en) | 2003-02-01 | 2004-08-05 | Hydraulik-Ring Gmbh | Device for adjusting a camshaft of an internal combustion engine of a motor vehicle |
US20050051121A1 (en) | 2003-09-05 | 2005-03-10 | Borgwarner Inc. | Variable camshaft timing phaser having a housing and a driving element of two different materials |
Also Published As
Publication number | Publication date |
---|---|
CN101970810A (en) | 2011-02-09 |
WO2009065731A1 (en) | 2009-05-28 |
EP2215333A1 (en) | 2010-08-11 |
EP2215333B1 (en) | 2011-10-19 |
CN101970810B (en) | 2013-05-22 |
US20100242876A1 (en) | 2010-09-30 |
ATE529614T1 (en) | 2011-11-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 H, DE |
|
R081 | Change of applicant/patentee |
Owner name: SCHAEFFLER TECHNOLOGIES AG & CO. KG, DE Free format text: FORMER OWNER: SCHAEFFLER TECHNOLOGIES GMBH & CO. KG, 91074 HERZOGENAURACH, DE Effective date: 20120823 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20130601 |