喷油泵每次泵出的油量取决于柱塞的有效行程的长短，而改变有效行程可采用 The amount of fuel pumped out by the fuel injection pump each time depends on the length of t

lk2025-05-05 6

题目：喷油泵每次泵出的油量取决于柱塞的有效行程的长短，而改变有效行程可采用 The amount of fuel pumped out by the fuel injection pump each time depends on the length of the effective stroke of the plunger, and changing the effective stroke can be achieved by

A. 改变喷油泵凸轮轴与柴油机曲轴的相对角位移 Change the relative angular displacement between the camshaft of the fuel injection pump and the crankshaft of the diesel engine

B. 改变滚轮挺柱体的高度Change the height of the roller strut body

C. 改变柱塞斜槽与柱塞套筒油孔的相对角位移Change the relative angular displacement between the plunger groove and the plunger sleeve oil hole

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喷油泵每次泵出的油量取决于柱塞的有效行程的长短，而改变有效行程可采用 The amount of fuel pumped out by the fuel injection pump each time depends on the length of t

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