EP 2504535 B1 20140115 - DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE
Title (en)
DEVICE FOR VARIABLY ADJUSTING THE CONTROL TIMES OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VORRICHTUNG ZUR VARIABLEN EINSTELLUNG DER STEUERZEITEN VON GASWECHSELVENTILEN EINER BRENNKRAFTMASCHINE
Title (fr)
DISPOSITIF D'AJUSTEMENT VARIABLE DES TEMPS DE COMMANDE DE SOUPAPES D'ÉCHANGE DES GAZ D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102009056018 A 20091127
- EP 2010068082 W 20101124
Abstract (en)
[origin: WO2011064231A1] The invention relates to a camshaft adjuster (11) for a camshaft (35), by means of which cylinder valves (12) of an internal combustion engine are actuated, wherein by means of the camshaft (35) late torques act on the camshaft adjuster (11) in the direction of later cylinder valve opening times when the cam is rising, and opposing early torques act on the camshaft adjuster (11) in the direction of earlier opening times when the cam is falling, wherein the feeding and draining of pressure medium can be controlled by means of a control unit (20), wherein a torque mode or a pump mode can be selectively adjusted by means of the control unit (20), wherein primarily camshaft torques are used for building up pressure in the first partial chamber A or in the second partial chamber B in the torque mode, while the pressure build-up in the first partial chamber A or in the second partial chamber B in the pump mode is primarily brought about by means of pressure medium provided by a pressure medium pump P.
IPC 8 full level
F01L 1/344 (2006.01)
CPC (source: EP US)
F01L 1/344 (2013.01 - EP US); F01L 1/34409 (2013.01 - EP US)
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
DOCDB simple family (publication)
WO 2011064231 A1 20110603; CN 102648338 A 20120822; CN 102648338 B 20140903; DE 102009056018 A1 20110707; EP 2504535 A1 20121003; EP 2504535 B1 20140115; US 2012266834 A1 20121025; US 8584638 B2 20131119
DOCDB simple family (application)
EP 2010068082 W 20101124; CN 201080053421 A 20101124; DE 102009056018 A 20091127; EP 10782277 A 20101124; US 201013511468 A 20101124