冷却液泵的液压设计与发动机内的逆向热应力直接相关。全负荷、最大额定速度以及周围温度极高等等这些不利因素为研发人员指明了设计方向。根据设计标准以及发动机与泵之间固定的传动比,在大多数情况下,发动机接收到的冷却液过多,这意味着冷却液泵消耗的能量过多。此外,发动机冷启动几分钟后,冷却液泵不应向发动机提供冷却液,这样才能缩短发动机预热过程,减少废气排放。鉴于以上情况,皮尔博格 The hydraulic design of the coolant pump is directly related to the inverse thermal stress in the engine. The unfavorable factors of full load, maximum rated speed and very high ambient temperature point out the design direction for the R & D personnel. Depending on the design criteria and the fixed gear ratio between the engine and the pump, the engine receives too much coolant in most cases, which means that the coolant pump consumes too much energy. In addition, a few minutes after the engine cold start, the coolant pump should not provide coolant to the engine, which will shorten the engine warm-up process and reduce exhaust emissions. In view of the above, Pierburger