EP 3402965 A1 20181121 - VARIABLE VALVE TRAIN
Title (en)
VARIABLE VALVE TRAIN
Title (de)
VARIABLER VENTILTRIEB
Title (fr)
MÉCANISME DE DISTRIBUTION VARIABLE
Publication
Application
Priority
- DE 102016200424 A 20160115
- DE 2016100590 W 20161216
Abstract (en)
[origin: WO2017121420A1] A variable valve train (1) for a DOHC single-cylinder engine is proposed, having a camshaft (2) which can be displaced axially as an entirety and on which at least one cam group (3) with at least one large lift cam and one small lift cam (4, 5) and a groove piece (6) which is connected thereto are seated fixedly, which groove piece (6) is provided with a displacement groove profile (7) for engagement of an actuator pin (8) of a switching actuator (9) for displacing the cam shaft (2), wherein said cam shaft (2) is enclosed on the circumferential region (10) thereof, in the case of an end spur system (11), by a drive wheel (12) for an endless traction mechanism which is seated fixedly on an intermediate sleeve (13) which engages around the circumferential region (10) of the camshaft (2) and is fixed axially but runs rotatably at least indirectly on a bearing shell (14) of a support (15) of a cylinder head (16), with the result that a first bearing point (17) is formed for the camshaft (2), wherein the camshaft (2) is received in a telescopically movable manner in a bore (18) of the intermediate sleeve (13), and drive means (19) are provided in the circumferential direction in between, and wherein latching means (20) for fixing the displacement positions of the camshaft (2) are applied at the same time between the intermediate sleeve (13) and the camshaft (2).
IPC 8 full level
F01L 13/00 (2006.01); F01L 1/053 (2006.01)
CPC (source: EP)
F01L 1/053 (2013.01); F01L 13/0036 (2013.01); F01L 2001/0476 (2013.01); F01L 2001/0537 (2013.01); F01L 2013/0052 (2013.01); F01L 2013/101 (2013.01); F01L 2250/02 (2013.01); F01L 2250/04 (2013.01)
Citation (search report)
See references of WO 2017121420A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2017121420 A1 20170720; DE 102016200424 A1 20170720; EP 3402965 A1 20181121
DOCDB simple family (application)
DE 2016100590 W 20161216; DE 102016200424 A 20160115; EP 16831479 A 20161216