Heat exchange controlling system for engine of motor vehicle, has cooling loop coupled with parallel circuit through four way valves, where valves define distinct functioning modes corresponding to pathways of coolant in parallel circuit

摘要

The system has a cooling loop (2) coupled with a parallel circuit (8) through two four way valves (6, 7), where the circuit has a gear box water/oil exchanger (9), and a gas/water exchanger (10) connected with a water pump (11). The valves define four distinct functioning modes corresponding to four pathways of coolant in the circuit, where the valves are arranged in upstream and in downstream of the water/oil exchanger, a low temperature cooling water/air radiator (12), and gas/water exchanger in series with the water pump.