求翻译：作用是保证柴油在低压油路内循环，并供应足够数量及一定压力的燃油给喷油泵，其输油量应为全负荷最大喷油量的3-4倍是什么意思？

Role is to ensure that the diesel in the low-pressure oil circulation, and the supply of sufficient quantity and a certain pressure fuel to the fuel injection pump, 3-4 times the amount of oil should be at full load maximum fuel injection amount of

The role is to ensure that diesel fuel pressure cycling, and in the provision of adequate quantity and a certain amount of pressure to the fuel injection pump, the pump should be a full-load the maximum amount of fuel injected 3 to 4 times

The function is guaranteed the diesel oil in the low pressure oil duct internal recycling, and supplies the enough quantity and certain pressure fuel oil gives the injection pump, its oil transfer quantity should for capacity load biggest distributive value 3-4 time

Role is to ensure that diesel cycle in the low voltage circuit and supply sufficient quantity and pressure of fuel injection pump, the oil should be at full load 3-4 times the maximum amount of fuel injection

正在翻译，请等待...