DE102004005795A1 - Camshaft angle adjustment device for internal combustion engine, comprises gearing permanently joined to camshaft - Google Patents
Camshaft angle adjustment device for internal combustion engine, comprises gearing permanently joined to camshaft Download PDFInfo
- Publication number
- DE102004005795A1 DE102004005795A1 DE200410005795 DE102004005795A DE102004005795A1 DE 102004005795 A1 DE102004005795 A1 DE 102004005795A1 DE 200410005795 DE200410005795 DE 200410005795 DE 102004005795 A DE102004005795 A DE 102004005795A DE 102004005795 A1 DE102004005795 A1 DE 102004005795A1
- Authority
- DE
- Germany
- Prior art keywords
- camshaft
- transmission
- gear
- combustion engine
- internal combustion
- 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- Withdrawn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
- F01L1/352—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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Winkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine nach dem Oberbegriff des Anspruchs 1.The The invention relates to a device for angular adjustment of a Camshaft opposite a crankshaft of an internal combustion engine according to the preamble of claim 1.
Zur Senkung des Kraftstoffverbrauchs und der Rohemissionen sowie zur Erhöhung von Leistung und Drehmoment sind Ottomotoren in der Regel mit Vorrichtungen zur Nockenwellenverstellung ausgestattet. Diese verändern die Phasenlage der Nockenwelle relativ zur Kurbelwelle.to Reduction of fuel consumption and raw emissions as well as increase Of power and torque, gasoline engines are usually with devices equipped for camshaft adjustment. These change the Phase angle of the camshaft relative to the crankshaft.
Aus
er
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zur Winkelverstellung einer Nockenwelle gegenüber einer Kurbelwelle einer Brennkraftmaschine derart auszubilden, dass eine zeit- und kostensparende Befestigung der Vorrichtung an der Nockenwelle möglich ist.Of the Invention is based on the object, a device for angular adjustment a camshaft opposite a crankshaft of an internal combustion engine in such a way that a time and cost saving attachment of the device to the camshaft possible is.
Diese Aufgabe wird gemäß der Erfindung durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.These Task is carried out according to the invention the characterizing features of claim 1 solved.
Bisher werden Getriebe von Nockenwellenverstellern üblicherweise an die Nockenwelle geschraubt. Diese Schraubverbindung zwischen dem Nockenwellenversteller und der Nockenwelle muss sicher ein Drehmoment übertragen, den Zug von Kette oder Zahnriemen abstützen und die beiden Bauteile gut zueinander positionieren können. Diese Schnittstelle kostet Geld und Bauraum.So far Gearboxes of camshaft adjusters are usually connected to the camshaft screwed. This screw connection between the camshaft adjuster and the camshaft must safely transmit a torque, the train of chain or support toothed belt and be able to position the two components well to each other. This interface costs money and space.
Weiterhin sind in der Nockenwelle Vorrichtungen zur Abstützung des Schraubenanzugsmomentes, z.B. Flächen zur Anlage eines Schraubenschlüssels, bei der Befestigung des Nockenwellenverstellers notwendig, die ebenfalls Geld kosten. Aus diesem Grund besteht ein wesentlicher Vorteil der Erfindung darin, dass der Nockenwellenversteller kleiner, leichter und preiswerter ausfallen kann, da auf separate Befestigungsmittel verzichtet wird. Im übrigen ist eine Verschraubung insbesondere bei Getrieben aus Bauraumgründen als sehr ungünstig zu bewerten, da viele Getriebetypen mittig angeordnete Zahnräder (z.B. Sonnenräder von Planetengetrieben) besitzen, so dass hier kein Platz mehr zur Verfügung steht.Farther are in the camshaft devices for supporting the Schraubanzugsmomentes, e.g. surfaces for the installation of a wrench, necessary in the attachment of the camshaft adjuster, which also Costs money. For this reason, there is a significant advantage of Invention in that the camshaft adjuster smaller, lighter and may be cheaper, due to separate fasteners is waived. Furthermore is a screw especially for gearboxes for space reasons as very unfavorable because many types of gears have centrally located gears (e.g. sun gears of planetary gears), so that there is no room left for disposal stands.
Im übrigen nimmt die Betriebssicherheit bei der Nockenwellenverstellung zu, da mit Wegfall der Schraubverbindungen auch mögliche Versagensquellen entfallen.Otherwise takes the reliability in the camshaft adjustment to, as with Elimination of screw connections and possible sources of failure omitted.
Es entsteht eine bauraumsparende und hoch belastbare Verbindung zwischen Nockenwelle und Stellergetriebe. Ferner wird auch noch eine Kostenreduktion dadurch erreicht, dass die Schnittstellen zum Fügen einfacher werden.It creates a space-saving and highly resilient connection between Camshaft and actuator gear. Furthermore, there is also a cost reduction achieved by making the interfaces for joining easier.
Vorteilhafterweise können die Nockenwelle und das mit der Nockenwelle verbundene Bauteil aus unterschiedlichen, für die Anwendung jeweils optimalen Werkstoffen bestehen, da sowohl das Reibschweißen und unten genannte weitere Schweißverfahren als auch das Innenhochdruckumformen eine nicht zerstörungsfrei lösbare Verbindung von unterschiedlichen Werkstoffpartnern ermöglicht. Die genannten Schweißverfahren ermöglichen insbesondere auch das Verbinden von Stählen mit hohem Kohlenstoffgehalt. Die mechanische Festigkeit der Reibschweißnaht liegt auf dem Niveau des Grundwerkstoffs. Ferner ist durch die hohe Maßhaltigkeit des Verfahrens bezüglich Rundlauf und axialer Position keine Nacharbeit erforderlich. Es ist eine kostengünstige Bearbeitung der Nockenwelle als Einzelteil möglich ohne anspruchsvolle Fügestelle.advantageously, can the camshaft and the component connected to the camshaft from different, for the Application of optimal materials, since both the friction welding and below mentioned further welding processes as well as hydroforming a non-destructive releasable Connection of different material partners allows. The mentioned welding process enable in particular, the joining of steels with high carbon content. The mechanical strength of the friction weld is at the level of the base material. Furthermore, by the high dimensional stability of the proceedings Concentricity and axial position no rework required. It is a low cost Machining of the camshaft as single part possible without demanding joint.
Weitere Ausgestaltungen und Vorteile der Erfindung gehen aus den übrigen Unteransprüchen und der Beschreibung hervor.Further Embodiments and advantages of the invention will become apparent from the other dependent claims and the description.
In den Zeichnungen ist die Erfindung in zwei Ausführungsbeispielen erläutert, und zwar zeigen:In the drawings, the invention is explained in two embodiments, and though show:
Die
Figuren zeigen eine Vorrichtung
Vorzugsweise
ist die Verstellvorrichtung
In
den Figuren ist die Verstellvorrichtung
Jede
Planetengetriebeeinheit weist ein eigenes Hohlrad
Die
Hohlräder
Um
eine zeit- und kostensparende Befestigung der Vorrichtung
Im
vorliegenden Fall ist das Abtriebselement
Im
vorliegenden Fall ist das Abtriebselement
Claims (12)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410005795 DE102004005795A1 (en) | 2004-02-06 | 2004-02-06 | Camshaft angle adjustment device for internal combustion engine, comprises gearing permanently joined to camshaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200410005795 DE102004005795A1 (en) | 2004-02-06 | 2004-02-06 | Camshaft angle adjustment device for internal combustion engine, comprises gearing permanently joined to camshaft |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102004005795A1 true DE102004005795A1 (en) | 2005-08-25 |
Family
ID=34801651
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200410005795 Withdrawn DE102004005795A1 (en) | 2004-02-06 | 2004-02-06 | Camshaft angle adjustment device for internal combustion engine, comprises gearing permanently joined to camshaft |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE102004005795A1 (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045258A1 (en) * | 2010-09-14 | 2012-03-15 | Pierburg Gmbh | Device for phase shifting the angle of rotation of a drive wheel to a driven wheel |
DE102014103150A1 (en) * | 2014-03-10 | 2015-09-10 | Hilite Germany Gmbh | Schwenkmotorversteller a camshaft |
DE102014217400A1 (en) | 2014-09-01 | 2016-03-03 | Schaeffler Technologies AG & Co. KG | Multi-stage planetary gear with planetary carrier friction-welded to a sun gear |
DE102015217291A1 (en) | 2015-09-10 | 2016-10-20 | Schaeffler Technologies AG & Co. KG | Phaser |
WO2017194045A1 (en) * | 2016-05-09 | 2017-11-16 | Schaeffler Technologies AG & Co. KG | Harmonic drive |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10102767A1 (en) * | 2001-01-23 | 2002-07-25 | Volkswagen Ag | Control drive for valves in IC engines esp. Otto engines for motor vehicles has hydraulic camshaft adjuster between two camshaft halve sections, formed as axial bearing for sections |
DE10211468A1 (en) * | 2002-03-15 | 2003-09-25 | Daimler Chrysler Ag | Camshaft adjuster for internal combustion engine has control piston in separate guide casing |
WO2004013467A1 (en) * | 2002-07-24 | 2004-02-12 | Ina-Schaeffler Kg | Device for modifying the control times of an internal combustion engine |
-
2004
- 2004-02-06 DE DE200410005795 patent/DE102004005795A1/en not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10102767A1 (en) * | 2001-01-23 | 2002-07-25 | Volkswagen Ag | Control drive for valves in IC engines esp. Otto engines for motor vehicles has hydraulic camshaft adjuster between two camshaft halve sections, formed as axial bearing for sections |
DE10211468A1 (en) * | 2002-03-15 | 2003-09-25 | Daimler Chrysler Ag | Camshaft adjuster for internal combustion engine has control piston in separate guide casing |
WO2004013467A1 (en) * | 2002-07-24 | 2004-02-12 | Ina-Schaeffler Kg | Device for modifying the control times of an internal combustion engine |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010045258A1 (en) * | 2010-09-14 | 2012-03-15 | Pierburg Gmbh | Device for phase shifting the angle of rotation of a drive wheel to a driven wheel |
DE102010045258B4 (en) * | 2010-09-14 | 2014-10-30 | Pierburg Gmbh | Device for phase shifting the angle of rotation of a drive wheel to a driven wheel |
DE102014103150A1 (en) * | 2014-03-10 | 2015-09-10 | Hilite Germany Gmbh | Schwenkmotorversteller a camshaft |
DE102014103150B4 (en) * | 2014-03-10 | 2018-01-04 | Hilite Germany Gmbh | Schwenkmotorversteller a camshaft |
DE102014217400A1 (en) | 2014-09-01 | 2016-03-03 | Schaeffler Technologies AG & Co. KG | Multi-stage planetary gear with planetary carrier friction-welded to a sun gear |
DE102015217291A1 (en) | 2015-09-10 | 2016-10-20 | Schaeffler Technologies AG & Co. KG | Phaser |
WO2017194045A1 (en) * | 2016-05-09 | 2017-11-16 | Schaeffler Technologies AG & Co. KG | Harmonic drive |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: DAIMLERCHRYSLER AG, 70327 STUTTGART, DE |
|
8127 | New person/name/address of the applicant |
Owner name: DAIMLER AG, 70327 STUTTGART, DE |
|
8110 | Request for examination paragraph 44 | ||
R016 | Response to examination communication | ||
R120 | Application withdrawn or ip right abandoned |