Solution to Diesel Engine Airflow Collision through Exhaust Pipe Modification

DOI: https://doi.org/10.62517/jes.202502430

Author(s)

Yanhui Guo, Yingjie Zheng, Zhenyu Zhang, Hanlei Wang, Fei Han

Affiliation(s)

Weichai Power Co., Ltd., Weifang, Shandong, China

Abstract

Turbochargers are pivotal diesel engine components that regulate intake and exhaust gas flow rates and pressures via interconnected structures powered by waste gases, ensuring smooth exhaust gas flow and operational efficiency. However, some of our V-type diesel engines experience airflow collisions during exhaust, leading to high fuel consumption and failure to achieve rated power. This study optimizes the exhaust manifold structure by transitioning from the original “turbine end-collective exhaust” design to “turbine end-individual exhaust-collective exhaust”, effectively resolving power insufficiency and enabling compliance with factory testing performance requirements. This exhaust manifold optimization for V-type diesel engines is also adaptable to other engine models within our company.

Keywords

Exhaust Manifold; Airflow Collision; Diesel Engine Performance; Structural Optimization

References

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