EP 2459850 A2 20120606 - DEVICE FOR THE VARIABLE ADJUSTING OF THE CONTROL TIMING OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE
Title (en)
DEVICE FOR THE VARIABLE ADJUSTING OF THE CONTROL TIMING OF GAS EXCHANGE VALVES OF AN INTERNAL COMBUSTION ENGINE
Title (de)
VORRICHTUNG ZUR VARIABLEN EINSTELLUNG DER STEUERZEITEN VON GASWECHSELVENTILEN EINER BRENNKRAFTMASCHINE
Title (fr)
DISPOSITIF POUR LE RÉGLAGE VARIABLE DES TEMPS DE COMMANDE DE SOUPAPES D'ÉCHANGES GAZEUX D'UN MOTEUR À COMBUSTION INTERNE
Publication
Application
Priority
- DE 102009034512 A 20090725
- EP 2010058389 W 20100615
Abstract (en)
[origin: WO2011012370A2] The invention relates to a device (11) for the variable adjusting of the control timing of gas exchange valves (9, 10) of an internal combustion engine (1) with a drive element (13), an output element (14), at least one pressure chamber (23) and a volume accumulator (31), wherein the output element (14) is arranged in a rotatable manner to the drive element (13), and the pressure chamber (23) is bordered at least partially by these components (13, 14), wherein a phase position between the output element (14) and the drive element (13) can be variably adjusted by the pressure medium supply to or pressure medium removal from the pressure chamber (23), wherein pressure medium lines (25a, b, p) are provided by means of which the pressure medium can be supplied to the pressure chamber (23) or removed therefrom, wherein the volume accumulator (31) has at least one housing (32) and a displaceable separating element (33) therein that separates a supply chamber (34), which connects to one of the pressure medium lines (25a, b, p), from a ventilated complementary space (35), wherein the separating element (33) is displaced in the housing (32) by the admission of the pressure medium in the supply chamber (34) in such a way that the volume of the supply chamber (34) increases at the expense of the complementary space (35).
IPC 8 full level
F01L 1/344 (2006.01); F15B 1/24 (2006.01)
CPC (source: EP US)
F01L 1/3442 (2013.01 - EP US); F01L 2001/34446 (2013.01 - EP US); F01L 2001/34469 (2013.01 - EP US)
Citation (search report)
See references of WO 2011012370A2
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 SE SI SK SM TR
Designated extension state (EPC)
BA ME RS
DOCDB simple family (publication)
DE 102009034512 A1 20110127; BR 112012001660 A2 20160412; CN 102713171 A 20121003; CN 102713171 B 20150722; EP 2459850 A2 20120606; EP 2459850 B1 20150422; US 2012079998 A1 20120405; US 8833318 B2 20140916; WO 2011012370 A2 20110203; WO 2011012370 A3 20130606
DOCDB simple family (application)
DE 102009034512 A 20090725; BR 112012001660 A 20100615; CN 201080032519 A 20100615; EP 10728151 A 20100615; EP 2010058389 W 20100615; US 201013375576 A 20100615