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一、喷油装置的任务 柴油机中,燃油不像在汽油机中那样提前与空气混合好,而是在靠近上止点时直接喷入燃烧室内,并且是自然点火。因此,喷油装置必须完成三个任务: a.计量要喷入的油量; b.配置每循环正确的喷油定时,即随柴油机负荷和转速变化的精确喷油定时; c.在极短的可利用的时间里将燃油和空气混合,这就意味着燃油必须以非常高的能量水平进入燃烧室。 喷入柴油机缸内的油量决定了柴油机的输出扭矩,因此必须精确地控制喷油量,要求每
First, the fuel injection device tasks Diesel, the fuel unlike the gasoline engine in advance with good mixing with air, but near the top dead center directly into the combustion chamber, and is a natural ignition. Therefore, the fuel injection device must complete three tasks: a. Measure the amount of fuel to be injected; b. Configure the correct fuel injection timing per cycle, that is, the precise injection timing that varies with diesel load and speed; c. Of the available time to mix the fuel with the air, which means that the fuel must enter the combustion chamber at a very high energy level. The amount of fuel injected into the cylinder of the diesel engine determines the output torque of the diesel engine. Therefore, the amount of fuel injected must be precisely controlled, and every