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1 前言DF4D型机车装用 1 6V2 4 0ZJD型柴油机 ,通过增加燃油供油量和空气进气量来实现功率的增加。因此该柴油机选用了结构相同 ,并具有高效率、高转速和高增压比的VTC2 5 4- 1 3D型和ZN2 90D型增压器 ,从而保证了柴油机的功率发挥。但该车常发生增压器故障 ,造成机破、临修。
1 Introduction DF4D locomotive equipped with 1 6V2 4 0ZJD diesel engine, by increasing the fuel supply and air intake to increase the power. Therefore, the diesel engine adopts VTC2 5 4- 1 3D model and ZN2 90D supercharger with the same structure, high efficiency, high rotation speed and high supercharging ratio to ensure the power of the diesel engine. But the car often turbocharger failure, resulting in broken machine, temporary repair.