Determining the characteristics for the rational adjusting of an fuel-air mixture composition in a two-stroke engine with internal carburation

Authors

DOI:

https://doi.org/10.15587/1729-4061.2020.200766

Keywords:

spark-ignition engine, operating process, internal carburation, fuel-air mixture

Abstract

An operating process for engines with spark ignition and direct fuel injection engines which ensures the formation of a stratified lean fuel-air charge under the modes of partial loads and the power composition of the fuel-air mixture at high loads has been developed.

The design of a two-stroke spark-ignition engine was modernized by installing a direct fuel injection system, placing the nozzle in the cylinder wall, and changing the combustion chamber shape.

A procedure of adjustment of the composition of the fuel-air mixture in the cylinder of a two-stroke spark-ignition engine has been developed. The procedure features the recording of engine parameters and indicators at a constant cycle fuel feed and intake air adjustment. The proposed procedure makes it possible to more accurately adjust the composition of the fuel-air mixture due to a more accurate dosage of air than the cycle fuel feed.

Experimental studies were carried out and adjustment characteristics were constructed in terms of the air-fuel mixture composition in the cylinder of a two-stroke engine with a developed operating process.

Load characteristics (at n=3,000 rpm) of rational adjustment in terms of economy and maximum power were constructed based on data on the adjustment characteristics for the composition of the fuel-air mixture.

It was found that in terms of the load characteristic of rational economy adjustment, the composition of the fuel-air mixture in the engine cylinder (λcyl.ec) varied from 1.31 to 1.94 and the minimum fuel consumption was ge min=259 g/(kWh). In terms of the load characteristic of rational power adjustment, the composition of the fuel-air mixture in the engine cylinder (λcyl.pow) varied from 1.31 to 1.7, and the fuel consumption at partial loads was ge=270 g/kWh.

Characteristics of airflow rate depending on the cycle fuel feed can be used to change the composition of the fuel-air mixture with automatic adjustment of the engine load

Author Biographies

Volodymyr Korohodskyi, Kharkiv National Automobile and Highway University Yaroslava Mudroho str., 25, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Associate Professor

Department of Internal Combustion Engines

Sviatoslav Kryshtopa, Ivano-Frankivsk National Technical University of Oil and Gas Karpatska str., 15, Ivano-Frankivsk, Ukraine, 76019

Doctor of Technical Sciences, Professor

Department of Аutomobile Transport

Vasiliy Migal, Kharkiv Petro Vasylenko National Technical University of Agriculture Alchevskyh str., 44, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Professor

Department of Tractors and Cars

Andrii Rogovyi, Kharkiv National Automobile and Highway University Yaroslava Mudroho str., 25, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Associate Professor

Department of Theoretical Mechanics and Hydraulics

Andrii Polivyanchuk, O. M. Beketov National University of Urban Economy in Kharkiv Marshala Bazhanova str., 17, Kharkiv, Ukraine, 61002

Doctor of Technical Sciences, Professor

Department of Urban Environmental Engineering

Georgiy Slyn’ko, Zaporizhzhia Polytechnic National University Zhukovskoho str., 64, Zaporizhzhia, Ukraine, 69063

Doctor of Technical Sciences, Professor

Department of Internal Combustion Engines

Volodymyr Manoylo, Kharkiv Petro Vasylenko National Technical University of Agriculture Alchevskyh str., 44, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Tractors and Cars

Oleh Vasylenko, Ukrainian State University of Railway Transport Feuerbacha sq., 7, Kharkiv Ukraine, 61050

PhD, Senior Lecturer

Department of Heat Engineering, Heat Engines and Energy Management

Oleksandr Osetrov, National Technical University “Kharkiv Polytechnic Institute” Kyrpychova str., 2, Kharkiv, Ukraine, 61002

PhD, Associate Professor

Department of Internal Combustion Engines

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2020-04-30

How to Cite

Korohodskyi, V., Kryshtopa, S., Migal, V., Rogovyi, A., Polivyanchuk, A., Slyn’ko, G., Manoylo, V., Vasylenko, O., & Osetrov, O. (2020). Determining the characteristics for the rational adjusting of an fuel-air mixture composition in a two-stroke engine with internal carburation. Eastern-European Journal of Enterprise Technologies, 2(5 (104), 39–52. https://doi.org/10.15587/1729-4061.2020.200766

Issue

Vol. 2 No. 5 (104) (2020): Applied physics

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Applied physics

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Copyright (c) 2020 Volodymyr Korohodskyi, Sviatoslav Kryshtopa, Vasiliy Migal, Andrii Rogovyi, Andrii Polivyanchuk, Georgiy Slyn’ko, Volodymyr Manoylo, Oleh Vasylenko, Oleksandr Osetrov

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