Global Patent Index - EP 1164255 A1

EP 1164255 A1 2001-12-19 - Apparatus for changing of phase angle between a cam shaft and a driving wheel of an internal combustion engine

Title (en)

Apparatus for changing of phase angle between a cam shaft and a driving wheel of an internal combustion engine

Title (de)

Vorrichtung zur relativen Drehwinkelverstellung einer Nockenwelle einer Brennkraftmaschine zu einem Antriebsrad

Title (fr)

Appareil pour régler la phase entre un arbre à cames et une roue motrice d'un moteur à combustion interne

Publication

EP 1164255 A1 (DE)

Application

EP 01112997 A

Priority

  • DE 10029798 A
  • DE 10101328 A

Abstract (en)

An opening (62) connecting with the oil channel (61) is located between two pressure chambers (22a,24a), in or on the sectored wheel (12). Its passage between the pressure chambers is controlled as a function of the position to which the inner component (4) is adjusted.

Abstract (de)

Die Erfindung betrifft eine Vorrichtung zur relativen Drehwinkelverstellung einer Nockenwelle einer Brennkraftmaschine zu einem Antriebsrad, mit einem drehfest mit der Nockenwelle (2) verbundenen Innenteil (4), das zumindest annähernd radial verlaufende Stege (8a bis 8a) oder Flügel aufweist, und mit einem angetriebenen Zellenrad (12), dass mehrere über den Umfang verteilte, durch Stege (14a bis 14e) begrenzte Zellen aufweist, die von den darin winkelbeweglich geführten Stegen oder Flügeln des Innenteils in zwei Druckräume unterteilt sind, bei deren hydraulischer Druckbeaufschlagung bzw. Druckentlastung über Steuerleitungen die Nockenwelle über die Stege oder Flügel zwischen zwei Endstellungen relativ zum Zellenrad (12) verdrehbar ist, und mit mindestens einer zwischen Innenteil (4) und Zellenrad (12) wirksamen Verrieglungseinrichtung, die ein bewegliches Verriegelungselement (53) aufweist, dass mit mindestens einem Gegenelement im jeweils anderen der beiden Bauteile Zellenrad (12) oder Innenteil (4) zusammenwirkt, wodurch das Innenteil (4) gegenüber dem Zellenrad (12) in mindestens einer Endlage verriegelbar ist, wobei die Ver- bzw. Entriegelung des Verriegelungselementes (53) über mindestens einen zum Verriegelungselement (53) führenden Ölkanal (61, 61') erfolgt. Es wird vorgeschlagen, dass zwischen zwei Druckräumen (22a, 24a) im oder am Zellenrad (12) eine mit dem Ölkanal (61, 61') verbundene Öffnung (62, 62') angeordnet ist, deren Durchgang zu den beiden Druckräumen (22a, 24a) in Abhängigkeit von der Verstellposition des Innenteils (4) gesteuert ist. Damit wird eine sichere Arretierung des Nockenwellenverstellers erreicht. <IMAGE>

IPC 1-7 (main, further and additional classification)

F01L 1/34

IPC 8 full level (invention and additional information)

F01L 1/34 (2006.01); F01L 1/344 (2006.01)

CPC (invention and additional information)

F01L 1/3442 (2013.01); Y10T 74/2102 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE ES FR GB IT

EPO simple patent family

EP 1164255 A1 20011219; EP 1164255 B1 20040331; ES 2214362 T3 20040916; JP 2002021514 A 20020123; JP 4756180 B2 20110824; US 2002020375 A1 20020221; US 6742484 B2 20040601

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