EP 1444423 A1 20040811 - DEVICE FOR CRANKCASE VENTILATION OF AN INTERNAL COMBUSTION ENGINE
Title (en)
DEVICE FOR CRANKCASE VENTILATION OF AN INTERNAL COMBUSTION ENGINE
Title (de)
EINRICHTUNG FÜR DIE KURBELGEHÄUSE-ENTLÜFTUNG EINER BRENNKRAFTMASCHINE
Title (fr)
DISPOSITIF POUR L'AERATION DU CARTER DE VILEBREQUIN D'UN MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 20118388 U 20011113
- EP 0212417 W 20021107
Abstract (en)
[origin: WO03042513A1] The invention relates to a device (1) for crankcase ventilation of an internal combustion engine (2), comprising a ventilation duct (10) extending from the crankcase (21) to an induction tract (22) of the internal combustion engine (2), whereby at least one oil vapor separator (11) causing a drop in pressure is arranged in said duct and a crankcase vacuum control valve (12) is arranged upstream or downstream therefrom and can be adjusted according to the pressure in the crankcase such that a lower pressure threshold valve in the crankcase (21) is respected. The novel device is characterized in that a discharge duct (15) extending from the crankcase (21) to the induction tract (22) of the internal combustion engine (2) is also provided, whereby a crankcase overpressure limiting valve (3) is disposed inside said duct and can be adjusted in a pressure-dependent manner to ensure that an upper pressure threshold in the crankcase (21) is not exceeded.
IPC 1-7
IPC 8 full level
F01M 13/02 (2006.01); F01M 13/00 (2006.01)
CPC (source: EP US)
F01M 13/022 (2013.01 - EP US); F01M 2013/0055 (2013.01 - EP US)
Citation (search report)
See references of WO 03042513A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
DE 20118388 U1 20030327; EP 1444423 A1 20040811; US 2005061305 A1 20050324; US 7025049 B2 20060411; WO 03042513 A1 20030522
DOCDB simple family (application)
DE 20118388 U 20011113; EP 0212417 W 20021107; EP 02785366 A 20021107; US 49464104 A 20041115