EP 2171221 A2 20100407 - CAM FOLLOWER FOR A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE
Title (en)
CAM FOLLOWER FOR A VALVE DRIVE OF AN INTERNAL COMBUSTION ENGINE
Title (de)
SCHLEPPHEBEL FÜR EINEN VENTILTRIEB EINER BRENNKRAFTMASCHINE
Title (fr)
CULBUTEUR POUR UNE COMMANDE DE SOUPAPE D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- EP 2008057672 W 20080618
- US 94804107 P 20070705
Abstract (en)
[origin: WO2009003840A2] A cam follower (2) is proposed for a valve drive (1) of an internal combustion engine with a lifting disc valve (9), to the shaft end face (8) of which at least two different valve strokes can be applied via a contact face (7) of the cam follower (2). The contact face (7) has a profile which is curved convexly in the longitudinal direction of the cam follower (2) and has at least one profile point (P0) from which two contact areas (K1, Kx), having profiles which are different from one another and are respectively adapted to one of the valve strokes, proceed. In this context, at least one of the contact areas (K1, Kx) is intended to have a profile with a continuously changing curvature, wherein the curvatures of the contact areas (K1, Kx) at the profile point (P0) are essentially of the same size.
IPC 8 full level
F01L 1/18 (2006.01); F01L 1/16 (2006.01); F01L 1/24 (2006.01); F01L 13/00 (2006.01)
CPC (source: EP)
F01L 1/16 (2013.01); F01L 1/18 (2013.01); F01L 1/185 (2013.01); F01L 1/2405 (2013.01); F01L 13/0005 (2013.01); F01L 2001/187 (2013.01); F01L 2305/00 (2020.05); F01L 2820/02 (2013.01)
Citation (search report)
See references of WO 2009003840A2
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009003840 A2 20090108; WO 2009003840 A3 20100225; AT E524639 T1 20110915; EP 2171221 A2 20100407; EP 2171221 B1 20110914
DOCDB simple family (application)
EP 2008057672 W 20080618; AT 08774123 T 20080618; EP 08774123 A 20080618