EP 1268988 B1 20060308 - VARIABLE VALVE CONTROL COMPRISING A SLIDING-BLOCK PART AND A FREE TRAVEL
Title (en)
VARIABLE VALVE CONTROL COMPRISING A SLIDING-BLOCK PART AND A FREE TRAVEL
Title (de)
VARIABLE VENTILSTEUERUNG MIT KULISSENELEMENT UND LEERWEG
Title (fr)
COMMANDE DE SOUPAPE VARIABLE AVEC ELEMENT COULISSANT ET COURSE A VIDE
Publication
Application
Priority
- DE 10016103 A 20000331
- EP 0103342 W 20010323
Abstract (en)
[origin: WO0175279A1] The invention relates to a variable valve train for reciprocating engines, in particular internal combustion engines comprising at least one cam of a camshaft that is rotatably mounted in the cylinder head. Said cam actuates a lift valve using a pulley assembly which can be displaceably guided in a sliding-block part along an adjusting inclined plane, together with a valve actuating element which is connected in series. The valve stroke can be adjusted in a variable manner in relation to the cam by the displacement of the sliding-block part and the pulley assembly is elastically pre-tensioned in relation to the cam. To achieve a sturdy valve train which exhibits uniform valve accelerations, a free travel (s) that allows an excitation movement of the pulley assembly is provided between the cam heel and the valve actuating element. The valve actuating element is configured as a two-part cam follower with a rocker action and the sliding-block part has a sliding-block guide comprising an additional excitation inclined plane for the pulley assembly.
IPC 8 full level
F01L 1/24 (2006.01); F01L 13/00 (2006.01)
CPC (source: EP US)
F01L 13/0063 (2013.01 - EP US); F01L 2013/0068 (2013.01 - EP US)
Designated contracting state (EPC)
DE ES FR GB IT
DOCDB simple family (publication)
WO 0175279 A1 20011011; DE 10016103 A1 20011004; DE 50109157 D1 20060504; EP 1268988 A1 20030102; EP 1268988 B1 20060308; ES 2256231 T3 20060716; JP 2003529708 A 20031007; US 2003037739 A1 20030227; US 6715456 B2 20040406
DOCDB simple family (application)
EP 0103342 W 20010323; DE 10016103 A 20000331; DE 50109157 T 20010323; EP 01927792 A 20010323; ES 01927792 T 20010323; JP 2001572736 A 20010323; US 22131102 A 20020911