CAJ | 학술논문

采用先进的EFS瞬时喷油量测量仪，分别对电控单体泵高、中、低转速工况进行循环喷油量的精确测量。通过对循环喷油量及喷油压力的试验数据分析，揭示了电控单体泵喷油量随转速改变的不一致性变化规律和主要影响因素。同时根据电控单体泵不同工况下的喷油特性，提出相应的喷油脉宽修正系数。验证试验结果表明，对喷油脉宽进行修正后，各工况喷油量不一致性均得到明显改善，某些工况改善程度在50%以上，从而在一定程度上改善了柴油机工作稳定性。
채용선진적EFS순시분유량측량의，분별대전공단체빙고、중、저전속공황진행순배분유량적정학측량。통과대순배분유량급분유압력적시험수거분석，게시료전공단체빙분유량수전속개변적불일치성변화규률화주요영향인소。동시근거전공단체빙불동공황하적분유특성，제출상응적분유맥관수정계수。험증시험결과표명，대분유맥관진행수정후，각공황분유량불일치성균득도명현개선，모사공황개선정도재50%이상，종이재일정정도상개선료시유궤공작은정성。
The cycle fuel injection quantity of electronic unit pump ( EUP) is accurately measured by using EFS Instantaneous Mono-Injector Qualifier in the operation conditions of high, middle and low speeds. The test data of fuel injection quantity and injection pressure are analyzed to reveal the variation law of fuel injection quantity in-consistency and its main influencing factors. In addition, according to the fuel injection characteristics of EUP, cor-responding injection pulse width correction coefficients are proposed. The results of verification test show that after the injection pulse widths are corrected, the inconsistency of fuel injection quantity greatly improves, with an over 50% improvement in some conditions, thus enhancing the operation stability of diesel engine to certain extent.