Global Patent Index - EP 1457645 B1

EP 1457645 B1 20050817 - Valve gear for an internal-combustion engine

Title (en)

Valve gear for an internal-combustion engine

Title (de)

Ventiltrieb für einen Verbrennungsmotor

Title (fr)

Mécanisme de commande de soupapes pour moteur à combustion interne

Publication

EP 1457645 B1 20050817 (DE)

Application

EP 04003090 A 20040212

Priority

DE 10311275 A 20030314

Abstract (en)

[origin: EP1457645A1] The valve opens a certain crankshaft angle (E01). A build-up described by a crankshaft angle difference (EOF) adds onto a global maximum. In this position, the valve is kept pressed out at a degree of crankshaft angle (EHub1). After this, the valve is partly closed again, i.e. the valve stroke drops to a local 'extremum' (EHub2) reached at a specific point (ES1).

IPC 1-7

F01L 9/04; F01L 13/00

IPC 8 full level

F01L 1/08 (2006.01); F01L 9/20 (2021.01); F01L 9/22 (2021.01)

CPC (source: EP)

F01L 1/08 (2013.01); F01L 9/20 (2021.01); F01L 9/22 (2021.01); F01L 2009/2126 (2021.01); F01L 2009/2136 (2021.01); F01L 2201/00 (2013.01)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

EP 1457645 A1 20040915; EP 1457645 B1 20050817; DE 10311275 A1 20040930; DE 502004000040 D1 20050922

DOCDB simple family (application)

EP 04003090 A 20040212; DE 10311275 A 20030314; DE 502004000040 T 20040212