目前在铁路界,多数机车在实施停机时都是采用人工关闭调整阀或将调速手柄回到零位。但美国哈蒙公司认为传统的做法需要太多的操纵时间,致使燃油消耗产生浪费。因此,哈蒙公司推荐了他们研制的机车发动机自动开关设备,通过自动处理的过程减少燃油消耗。哈蒙公司研制的发动机自动开关设备安装在空气制动室里,并配有传感器,用于监视各种工况,如:水温、大气温度、发动机出口水温、反向手柄运动、起动马达转动次数、主风 At present in the railroad industry, most locomotives employ artificial shut-off adjusting valves or speed adjusting handles to return to zero positions when they implement shutdown. However, the United States Harmon think the traditional approach requires too much manipulation time, resulting in a waste of fuel consumption. As a result, Harmon recommended the automatic engine switchgear they developed to reduce fuel consumption through an automated process. The automatic switchgear engine developed by Harmon is installed in the air brake chamber and is equipped with sensors for monitoring various operating conditions such as water temperature, atmospheric temperature, engine outlet water temperature, reverse handle movement, starting motor revolutions The main wind