Global Patent Index - EP 0903471 B1

EP 0903471 B1 20011205 - Device for variable camshaft timing in an internal combustion engine

Title (en)

Device for variable camshaft timing in an internal combustion engine

Title (de)

Vorrichtung zur verstellung der nockenwelle einer brennkraftmaschine mit innerer verbrennung

Title (fr)

Dispositif pour varier le calage d'un arbre à cames de moteur à combustion interne

Publication

EP 0903471 B1 20011205 (DE)

Application

EP 98890262 A 19980910

Priority

  • AT 158697 A 19970919
  • AT 135898 A 19980806

Abstract (en)

[origin: EP0903471A1] The adjusting mechanism for the camshaft has a planetary gear with a high gear reduction ratio, preferably more than 1:8 and especially more than 1:12. The gear is self-locking relative to adjustment of the camshaft (1) by the drive pulley (36). The mechanism is operated by an electric motor, and the motor and an internally toothed gear (35) are fastened to the drive pulley. The sun wheel (37) is fastened to the camshaft.

IPC 1-7

F01L 1/352

IPC 8 full level

F01L 1/344 (2006.01); F01L 1/352 (2006.01)

CPC (source: EP US)

F01L 1/34406 (2013.01 - EP US); F01L 1/352 (2013.01 - EP US); F01L 2820/032 (2013.01 - EP US)

Designated contracting state (EPC)

AT DE ES FR GB IT

DOCDB simple family (publication)

EP 0903471 A1 19990324; EP 0903471 B1 20011205; AT E210243 T1 20011215; DE 59802310 D1 20020117; ES 2167864 T3 20020516; US 6138622 A 20001031

DOCDB simple family (application)

EP 98890262 A 19980910; AT 98890262 T 19980910; DE 59802310 T 19980910; ES 98890262 T 19980910; US 15431698 A 19980916