Advanced International Journal of Multidisciplinary Research

E-ISSN: 2584-0487 •   Impact Factor: 9.11

An Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

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A Comprehensive Review of Advanced Diesel Injector Systems for Improving Engine Efficiency and Emission Control

Author(s) Manesh Tarachand Khaire
Country India
Abstract Diesel engines continue to dominate the world transport and industry energy. The fuel injection system has become one of the most important engine research topics in order to meet the growing demands of stricter and stricter emission standards without compromising fuel economy. This paper is a review of the advanced diesel injector systems and how the advances in the common rail technology, solenoid and piezoelectric injectors, spray atomisation and multiple injection strategies have improved the efficiency and emission control. Integration of injection systems with exhaust after-treatment technologies such as diesel particulate filters, selective catalytic reduction, and exhaust gas recirculation are also discussed in the review. Other areas are the effects of injection pressure on the particulate composition, the performance degradation due to altitude, and compatibility with alternative fuels. The systematic narrative approach is employed, relying on 25 peer-reviewed sources published in 2018-2025. The review is guided by three working hypotheses: that advanced injection technologies enhance engine performance compared to conventional systems, that multiple injection strategies lead to less combustion noise and help to support emission control, and that integrated injection and after-treatment strategies are better than any single technology. The three hypotheses are supported by the evidence in the reviewed studies. The paper ends with the research gaps that are present in altitude performance, cold-start thermal management, and adaptive injection control of alternative fuels.
Keywords Common rail injection, piezoelectric injector, solenoid injector, diesel emission control, spray atomisation, DPF, SCR, EGR, fuel injection pressure, multiple injection strategies.
Discipline Other
Published In Volume 4, Issue 3, May-June 2026
Published On 2026-05-08
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