【摘 要】
：
近年来,我国从国外引进了一些配寇明斯发动机的大型自卸汽车,如日本小松制作所制造的 HD—180和美国产的电动轮重型矿用汽车。其发动机都是采用 PT 燃油系统的柴油机。汽车
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近年来,我国从国外引进了一些配寇明斯发动机的大型自卸汽车,如日本小松制作所制造的 HD—180和美国产的电动轮重型矿用汽车。其发动机都是采用 PT 燃油系统的柴油机。汽车经一定时期使用之后,其发动机在工作中就会产生转速忽高忽低的“喘气”现象。这种现象开始是发生在发动机怠速和低速运转时,若不及时采取措施,发动机再继续工作一段时间后,就会在中速甚至高速时,出现这种不稳定的工况。与此同时,发动机的功率也有明显的下降,从而将严最地影响发动机的正常工作。
In recent years, China imported large-scale dump trucks equipped with the Cummins engine from abroad, such as the HD-180 manufactured by Japan’s Komatsu Manufacturing Co. and the electric wheel heavy mining vehicles manufactured in the United States. The engine is a diesel engine with a PT fuel system. After the car is used for a certain period of time, its engine will produce a “panting” phenomenon with high and low speed during its work. This phenomenon began when the engine idling and low speed operation, if not promptly take measures, the engine to continue to work for some time, it will be at medium speed or even high speed, this unstable conditions. At the same time, the power of the engine also dropped significantly, which will seriously affect the normal operation of the engine.
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