EP 1490584 B1 20070725 - DEVICE FOR THE VARIABLE CONTROL OF GAS EXCHANGE VALVES IN AN INTERNAL COMBUSTION ENGINE
Title (en)
DEVICE FOR THE VARIABLE CONTROL OF GAS EXCHANGE VALVES IN AN INTERNAL COMBUSTION ENGINE
Title (de)
VORRICHTUNG ZUR VARIABLEN STEUERUNG DER GASWECHSELVENTILE EINER BRENNKRAFTMASCHINE
Title (fr)
DISPOSITIF POUR COMMANDER DE MANIERE VARIABLE LES SOUPAPES DE CHANGEMENT DES GAZ D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 0202092 W 20020608
- DE 10141605 A 20010824
Abstract (en)
[origin: WO03018964A2] The invention relates to a device for the variable control of gas exchange valves in an internal combustion engine. At least one of the gas exchange valves is controlled by the cam (1) of a cam shaft (2), provided with a cam contour with a circular base section (4) and a cam summit section (6). According to the invention, a radially retractable and extractable piston (12) is provided which can be guided through the cam (1) and which can be pressure actuated for variable adjustment of the cam contour, said piston forming, on the end side thereof, at least one part of the cam summit section (6).
IPC 8 full level
F01L 1/00 (2006.01); F01L 1/08 (2006.01); F01L 13/00 (2006.01)
CPC (source: EP KR US)
F01L 1/08 (2013.01 - KR); F01L 13/0057 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 03018964 A2 20030306; WO 03018964 A3 20041104; DE 10141605 A1 20030306; DE 50210574 D1 20070906; EP 1490584 A2 20041229; EP 1490584 B1 20070725; JP 2005507040 A 20050310; KR 20040029303 A 20040406; US 2005056243 A1 20050317; US 6928970 B2 20050816
DOCDB simple family (application)
DE 0202092 W 20020608; DE 10141605 A 20010824; DE 50210574 T 20020608; EP 02747200 A 20020608; JP 2003523799 A 20020608; KR 20037005608 A 20030423; US 39996503 A 20030902; US 39996504 A 20040224