Automobile cooling system has switching valve directing cooling liquid through cooling path containing engine cooling mantle and heat exchanger or cooling path containing electronic control module

摘要

The cooling system (2) has a cooling mantle (16) enclosing the IC engine, an air/liquid heat exchanger (4), a circulation pump (8) and an equalisation tank (12). An integrated switching valve allows the cooling liquid to be circulated through a first cooling circuit path (I) containing the cooling mantle and the heat exchanger, or through a second cooling circuit path (II) containing an electronic control module (24) incorporating power components generating waste heat, the circulation pump contained within a common circuit path.