TWO-PHASE MIXING IN TRACTOR DIESEL: THEORY, EXPERIMENT, TECHNICAL SOLUTIONS

Autor: A.P. Ukhanov, M.V. Ryblov, M.D. Dubin, D.A. Ukhanov
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Volga Region Farmland, Iss 1 (2022)
Druh dokumentu: article
ISSN: 2686-7672
2713-198X
DOI: 10.36461/VRF.2022.12.1.003
Popis: The article is devoted to the problem of improving the power, fuel-economic and environmental performance of tractor diesel engines due to the organization and practical implementation of mixing in two phases. The first phase is carried out in the intake stroke by distributed injection of a certain dose of finely dispersed activator (gasoline, kerosene, alcohol, biofuels, etc.) into the branches of the diesel intake pipeline. The second phase is carried out in the compression stroke by injecting the main dose of motor fuel into the cylinder medium containing local ignition centers formed due to the pre-flame preparation of the activator-air mixture that entered the cylinder in the first phase. The features of the calculation of diesel indicators for two-phase mixing are given, taking into account the ratio of motor fuel and activator. Theoretical foundations for the software for electronic control of activator injection in the first phase of mixing are considered. An electronic system of distributed activator injection has been developed, which provides metered injection of activator into the branches of the diesel intake pipeline with electromagnetic injectors in the intake stroke, while the dose of the activator is coordinated with the mass consumption of motor fuel. The results of experimental studies show that, depending on the type and dose of the activator, two-phase mixing increases the power and torque of the diesel engine by 3-12%, reducing the smoke content of exhaust gases by up to 50% compared to the operation of the diesel engine in standard configuration without injection of the activator in the first phase of mixing.
Databáze: Directory of Open Access Journals
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