论文部分内容阅读
节温器的作用是用来自动调节冷却水的循环,保证发动机能在最佳的温度范围内正常运行。目前柴油发动机较多的采用工作性能稳定的蜡式节温器,当冷却的水温度低于83℃时,节温器阀门关闭,冷却水只能在发动机内进行小循环,而不经水箱进行大循环,从而加速了冷却水温度的上升,减少了发动机在低温下的运行时间。当冷却水温度达到83℃时,随着发动机温度的逐渐升高,节温器阀门渐渐开启,冷却水越来越多地参加大循环冷却,散热能力也越来越大。一旦温度达到或超过主阀门全开温度95℃,主阀门全开,而副阀门正好全部关闭小循环通道,这时的散热能力将最大限度的发挥,从而确保发动机在最佳温度范
Thermostat’s role is to automatically adjust the cooling water circulation, to ensure that the engine can be in the best temperature range of normal operation. At present, the diesel engine adopts the wax-type thermostat whose working performance is stable. When the temperature of the cooled water is lower than 83 ° C, the thermostat valve is closed, and the cooling water can only circulate in the engine without passing through the water tank Big cycle, which accelerated the cooling water temperature rise, reducing the engine running time at low temperatures. When the cooling water temperature reached 83 ℃, with the gradual increase in engine temperature, the thermostat valve is gradually opened, more and more cooling water to participate in the large circulation cooling, cooling capacity is also growing. Once the temperature reaches or exceeds the main valve opening temperature of 95 ℃, the main valve is fully open, while the deputy valve just closed all the small circulation channel, then the cooling capacity will maximize the play, so as to ensure that the engine at the optimum temperature range