我们经常遇到这种情况:拖拉机超载上坡时,临近坡顶加油门不起作用,如果适当减小油门,拖拉机反而有劲了,不用换低档即可冲过坡顶,这是为什么? 因为任一发动机每个工作循环吸入气缸的空气量与所需的柴油量是一定的,拖拉机上坡超负荷严重, We often encounter this situation: tractor overloading uphill, near the top of the gas door does not work, if you reduce the throttle, the tractor but energetic, do not have to downshift can be washed over the top, which is why? Because either The amount of air sucked into the cylinder for each working cycle of an engine and the amount of diesel fuel required are certain, the tractor is overloaded severely,