汽车发动机离心式水泵叶轮的设计研究

Design and Research of Centrifugal Pump Impeller for Automobile Engine

水泵作为发动机冷却系统的核心工作部件,水泵叶轮作为水泵工作的关键部件,其设计的目的是最大限度减少冷却液流动损失,使冷却液获得较多的能量。本研究以国内某知名汽车厂家的一款发动机所需水泵的性能要求为设计依据,提出了将《试验设计与数据处理》中的正交试验方法结合仿真分析,确定叶轮的最佳参数组合,然后再根据最佳的叶轮参数制造叶轮及水泵总成进行试验验证,为水泵叶轮的设计提供了科学的依据。

Water pump is the core working part of engine cooling system. As a key part of the water pump, the impeller is designed to minimize the coolant flow loss and make the coolant get more energy. This study one well-known domestic manufacturers of pumps for an engine performance requirements for the design basis, the design of experiments and the data processing is put forward to the orthogonal test method combined with the simulation analysis, the optimum parameters of impeller combination, and then according to the optimum parameters of the impeller manufacture impeller and the pump assembly test, provides the scientific basis for water pump impeller design.