Sliding vane rotary pump in engine cooling system for automotive sector

In this work, a sliding vane rotary pump has been designed for an existing engine cooling circuit. It has been built and extensively tested in order to compare its performances to a traditional (centrifugal) mechanical type. The model of this novel pump has been inserted in a wide and comprehensive mathematical model of the engine cooling system which behaved as engine virtual platform having been validated for the specific engine. The mechanical energy absorbed by the novel pump (and that by the traditional centrifugal one) has been calculated when the engine reproduced the international homologation driving cycles on which emission and fuel consumption are usually measured. The lower mechanical energy absorbed by the SVRP when compared to traditional type justifies a reduction of the order of 0.5 gCO2/km. This issue represents a very important result being today the engine technological development massively oriented to the fuel consumption saving.