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Improving the process of filling cylinders with air by modernizing the intake manifold

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Category: Content №6 2025

Last Updated on 25 December 2025

Published on 30 November -0001

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Authors:

V. M. Aronin, orcid.org/0009-0006-5695-4796, Private company “Promenergo”, Merefa, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

D. V. Vorobiov, orcid.org/0009-0003-4383-2923, Kharkiv National Automobile and Highway University, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

O. I. Voronkov, orcid.org/0000-0003-2744-7948, Kharkiv National Automobile and Highway University, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A. M. Avramenko*, orcid.org/0000-0001-8130-1881, Kharkiv National Automobile and Highway University, Kharkiv, Ukraine; Anatolii Pidhornyi Institute of Power Machines and Systems of the National Academy of Sciences of Ukraine, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

A. S. Ptushka, orcid.org/0000-0003-3177-5370, Kharkiv National Automobile and Highway University, Kharkiv, Ukraine, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

* Corresponding author e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

повний текст / full article

Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu. 2025, (6): 098 - 104

https://doi.org/10.33271/nvngu/2025-6/098

Abstract:

Purpose. To increase the mass flow rate of air through a forced diesel engine of type 6 Ch 15/15 by modernizing the design of the intake manifold.

Methodology. A comparative numerical study of the conditions for filling cylinders with air for different design variants of the intake manifold when the engine is operating at rated power is carried out. The problem is considered in a three-dimensional non-stationary formulation. To describe the boundary conditions, the results of the calculation of the working process are additionally used, namely, the pressure pulsation in front of the intake valves during the cylinder filling process.

Findings. It has been established that using newly designed intake manifolds can increase the mass flow rate of air through the engine cylinders by 9 %. In operation, this will allow one, with minimal redesign (only the intake manifolds are upgraded), to improve engine operating conditions, primarily to increase engine power, increase effective efficiency, and improve torque characteristics, especially at partial load conditions. This will increase the maneuverability of the vehicle and improve its consumer qualities.

Originality. The study made it possible to investigate the influence of the intake manifold design on the conditions of cylinder filling with air and to develop scientific and practical recommendations for improving the technical and economic performance of the engine, especially with an increase in its level of boost.

Practical value. Improving the conditions for filling the cylinders with air will increase the mass flow rate and cycle fuel supply and, accordingly, enhance the power of a forced diesel engine, increase the effective efficiency, and improve its performance.

Keywords: diesel engine, intake manifold, filling process, mass airflow

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