DEVICE FOR DISTRIBUTING COOLING FLUID IN A MOTOR VEHICLE ENGINE

摘要

Device for distributing a heat-transfer fluid, the device consisting of a junction comprising a main input, an auxiliary input whose opening is controlled by an input valve Th2, a main output and an auxiliary output whose opening is controlled by an output valve Th1 which is governed to reach an open position when the heat-transfer fluid circulating in the junction reaches a first threshold temperature T<SUB>s1</SUB>, and the device consisting of a connection which opens into the auxiliary input of the junction, the input valve being governed to reach an open position when the heat-transfer fluid present in the connection reaches a second threshold temperature T<SUB>s2</SUB> which differs from the first threshold temperature T<SUB>s1</SUB>. The distribution device additionally comprises means for establishing a low flow rate of heat-transfer fluid between the junction and the connection when the output valve is in an open position and the input valve is in a closed position. The invention also relates to a dual-cooling system for an internal combustion engine.