Coolant pump

with electric motorfor automotive applicationsfor engine

Conventional pumps for engine cooling are driven by toothed belts and hence their output is coupled to engine RPM. Coolant pumps need to ensure sufficient cooling even at low engine RPM with high engine loads and at elevated outdoor temperatures, and so for normal operations (higher RPM and low load) they are inevitably oversized. The use of an electric coolant pump together with state-of-the-art thermal management of the combustion engine has measurable advantages. Demand-driven cooling, particularly in the cold-start phase, saves fuel (approx. 3 percent) and leads to a corresponding reduction in emissions. Moreover, improved air conditioning can achieve greater comfort in the passenger compartment. The lack of dependence on a mechanical drive also results in considerable flexibility in component packaging within the engine compartment. The product selection from Pierburg Pump Technology covers the complete range of applications for electric water circulation and coolant pumps in the automotive industry. The range includes water circulation pumps for stationary air conditioning, run-on and ancillary assembly cooling via electric coolant pumps for charge air and engine cooling. In fact, our company has extensive experience in the area of electric water pumps, especially with regard to EC engine technology and hydraulics. Today in addition to more than 6 million mechanical coolant pumps, more than 6 million electric water circulation pumps and coolant pumps with electronically commutated motors are produced each year.