Features of Electronic Water Pumps
1) Provide timely and appropriate cooling capacity, low energy consumption, high efficiency, realize precise control of coolant flow according to water temperature and other information, reduce coolant flow distance and reduce water pump displacement by about 60%.
2) To reduce friction, the electronic water pump is driven by electricity. Compared with the mechanical water pump, which is driven by an accessory belt, the friction work is reduced. The NEDC (New European Driving Cycle, which is the European battery life test standard) cycle can reduce fuel consumption by about 2%.
3) Accelerate warm-up. For hybrid engines, due to frequent start and stop, a faster warm-up speed is required. Since the displacement of the electronic water pump can be controlled in real time, reducing the coolant flow rate during cold start can speed up warm-up and reduce Effects on fuel consumption and emissions.
4) The service life is longer, and the continuous working time is more than 20,000 hours.
5) The risk of water leakage is greatly reduced. The impeller of the mechanical water pump is press-fitted on the water pump bearing with an interference fit, while the integrated magnetic impeller of the electronic water pump is driven by the magnetic core installed in the water pump shell, so that the water cavity can be realized The separation from the outside removes the water seal, reducing frictional losses and the risk of water leaks.
6) Flexible control methods (PWM, bus).
7) Multiple working protections (over temperature, over voltage, over current, etc.).
