公开(公告)号：EP3027861A1

公开(公告)日：2016-06-08

申请号：EP14777807.0

申请日：2014-07-29

申请人： ING Enea Mattei S.p.A. ,  Meccanotecnica Umbra S.p.A. ,  Sei Servizi Per L'economia E Per L'ingegneria Srl

发明人： CONTALDI, Giulio ,  VENTURA, Alessandro ,  CIPOLLONE, Cinzia

IPC分类号： F01P7/16 ,  F01C21/08 ,  F04C2/344

CPC分类号： F01P7/165 ,  F01C21/0809 ,  F01P5/10 ,  F01P2060/02 ,  F01P2060/04 ,  F01P2060/08 ,  F01P2060/16 ,  F04C2/3441 ,  F04C14/06 ,  F04C15/008 ,  F04C29/04 ,  F04C2210/247

摘要： A hydraulic circuit (1) associated with an internal combustion engine (M) comprising a main cooling circuit (2) of the engine (M) provided with a circulation pump (4) for a cooling fluid, and an auxiliary preheating circuit (3) branched from the main circuit (2); the pump (4) is a rotary volumetric pump dimensioned so as to generate, at least during a warm-up transient of the engine (M), a flow rate greater than that required for the cooling of the engine (M); at least one fraction of the flow rate generated by the pump is sent to the auxiliary circuit (3) where it recovers heat from a fluid (23; 26) at higher temperature, such as the exhaust gases and/or the supercharging compressed air of the engine (M), and gives it to a fluid (24) at lower temperature, such as for example the engine oil or the passenger compartment air.