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在柴油机强化时,引起了很多新问题,其中包括要增加每循环供油量。而为了保证雾化质量,必须保持喷孔的截面积;为了不增加喷油时间,必须提高喷油器前的压力。现在,在某些供油系统,高压泵出口的压力已达200MPa(2000kgf/cm~2),但是喷油压力的增加并不成比例地增加柴油机的有效指标。德国慕尼黑发动机制造研究所曾得出结论:当高压泵的凸轮转速为1000r/min,喷油压
As the diesel engine intensifies, a number of new problems have arisen, including the need to increase fueling per cycle. In order to ensure the quality of atomization, it is necessary to maintain the cross-sectional area of the injection hole. In order not to increase the injection time, the pressure before the injector must be increased. Now, in some oil supply systems, the pressure at the outlet of the high pressure pump has reached 200MPa (2000kgf / cm ~ 2), but the increase of the injection pressure does not increase the effective index of the diesel engine proportionally. Munich, Germany Institute of Engineers has concluded that: when the high-pressure pump cam speed 1000r / min, injection pressure