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Design and optimization of electrically controlled injectors without static leakage
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Xiuyi Lyu1, Yingdi Dai2, Jing Xu2, Liyun Fan2
Transactions of CSICE | 2025, 43(5) : 451 - 459
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Transactions of CSICE | 2025, 43(5): 451-459
Design and optimization of electrically controlled injectors without static leakage
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Xiuyi Lyu1, Yingdi Dai2, Jing Xu2, Liyun Fan2
Affiliations
  • 1.School of Shipping and Naval Architecture，Chongqing Jiaotong University，Chongqing 400074，China
  • 2.School of Power and Energy Engineering，Harbin Engineering University，Harbin 150006，China
Published: 2025-09-25 doi: 10.16236/j.cnki.nrjxb.202505051
Outline
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To improve the response characteristics of a no-static-leakage injector, an electronically controlled injector was designed with a three-orifice plate structure. Its performance was optimized and evaluated through simulation modeling. In the performance analysis, the leakage ratio was introduced as a standard to assess the fuel leakage level of the injector in order to eliminate the evaluation error caused by cyclic injection volume. In the optimization phase, a fitness function was constructed based on three performance indicators: Leakage ratio, opening response time, and closing response time. The non-dominated sorting genetic algorithm Ⅱ(NSGA-Ⅱ)with an elitist strategy was used for multi-objective optimization. The optimization results indicate that, under a rail pressure range of 100MPa to 200MPa, compared to the original model designed for the operational conditions, the closing response time of the designed injector is reduced by up to 11.46%, the opening response time is reduced by up to 1.68%, and the leakage ratio is increased by up to 11.23%. The application of this algorithm effectively improves optimization efficiency and enhances the overall performance of the injector.

electronically controlled injectors  /  no-static-leakage  /  multi-objective optimization
吕修颐, 代蓥笛, 许菁, 范立云. 基于遗传算法的无静态泄漏电控喷油器设计与优化. 内燃机学报, 2025 , 43 (5) : 451 -459 . DOI: 10.16236/j.cnki.nrjxb.202505051
Xiuyi Lyu, Yingdi Dai, Jing Xu, Liyun Fan. Design and optimization of electrically controlled injectors without static leakage[J]. Transactions of CSICE, 2025 , 43 (5) : 451 -459 . DOI: 10.16236/j.cnki.nrjxb.202505051
Appendix
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Year 2025 volume 43 Issue 5
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Article Info
doi: 10.16236/j.cnki.nrjxb.202505051
  • Receive Date：2024-12-19
  • Online Date：2026-11-05
  • Published：2025-09-25
Article Data
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History
  • Received：2024-12-19
  • Revised：2025-05-11
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Affiliations
    1.School of Shipping and Naval Architecture，Chongqing Jiaotong University，Chongqing 400074，China
    2.School of Power and Energy Engineering，Harbin Engineering University，Harbin 150006，China
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表12种不同金属材料的力学参数
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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