EP 2129895 A1 20091209 - DUAL STAGE SUPERCHARGING SYSTEM FOR INTERNAL COMBUSTION ENGINE
Title (en)
DUAL STAGE SUPERCHARGING SYSTEM FOR INTERNAL COMBUSTION ENGINE
Title (de)
ZWEISTUFIGES auflADUNGSSYSTEM FÜR VERBRENNUNGSMOTOREN
Title (fr)
SYSTEME DE SURALIMENTATION A DOUBLE ETAGE POUR MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- FR 2008050217 W 20080212
- FR 0754206 A 20070402
Abstract (en)
[origin: WO2008122725A1] The invention relates to a dual-stage supercharging system for an internal combustion engine, that comprises a high-pressure turbocharger with a high-pressure turbine for receiving a first flow of exhaust gases from the engine, a low-pressure turbocharger having a low-pressure turbine for receiving a second flow of exhaust gases and located downstream from the high-pressure turbine, characterised in that it comprises: a controlled single-way valve (C1) located in the downstream exhaust circuit of the high-pressure turbine (THp), a two-way valve (C2) located in the exhaust circuit for the gases from the engine upstream relative to the low-pressure turbine (TBp) and downstream relative to the high-pressure turbine (THP) and that can be controlled between two end positions for operating the turbines alternatively in a serial mode and in a parallel mode, wherein both valves are controlled by a central electronic unit onboard the vehicle.
IPC 8 full level
F02D 23/00 (2006.01); F02B 37/12 (2006.01); F02B 37/22 (2006.01)
CPC (source: EP)
F02B 37/001 (2013.01); F02B 37/004 (2013.01); F02B 37/12 (2013.01); F02B 37/013 (2013.01); F02B 37/18 (2013.01); F02B 37/183 (2013.01); F02B 37/22 (2013.01); F02B 39/00 (2013.01); F02D 9/04 (2013.01); Y02T 10/12 (2013.01)
Citation (search report)
See references of WO 2008122725A1
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
DOCDB simple family (publication)
FR 2914367 A1 20081003; FR 2914367 B1 20090508; EP 2129895 A1 20091209; WO 2008122725 A1 20081016
DOCDB simple family (application)
FR 0754206 A 20070402; EP 08762069 A 20080212; FR 2008050217 W 20080212