Justification of the parameter that determines the ability of turbochargers of agricultural machinery engines to function

Robert Galimov,Engel Galimov,Alexander Kulakov,Ilgiz Galiev,A Valiev,B Ziganshin,D.I Zhilyakov,A Taylan,R Nizamov,M Kalimullin,M Nizamutdinov,D.A Zyukin,F Nezhmetdinova,W Heijman,I Safiullin

doi:10.1051/bioconf/20213700052

Abstract

As a result of the analysis of statistics on the main failures of the turbocharger of tractor engines in agricultural production, it can be concluded that it is the condition of its bearing node, in the first place, determines the performance of the entire turbocharger. This ultimately affects the duration of the turbocharger rotor after the engine stops. The article considers the method of determining the rotation time of the turbocharger rotor by inertia depending on the following factors: the time of the pressure drop in the turbocharger grease system, the gap in the turbocharger bearing node, the frequency of rotation of the rotor before the engine stops. The results of experimental studies on the timing of the turbocharger rotor rotation after the engine stop for the regular mode of greasing the bearing node and when using an individual lubricant system are presented. Based on the experimental values obtained, it is concluded that the main indicator of the performance of the turbocharger is the duration of rotation of its rotor after the engine stops and the application of the individual system of lubrication of the bearing node of the turbocharger reduces the cost of bearing resource and increases the resource of the entire turbocharger of agricultural machinery engines at least twice.

Highlights

Agricultural production is one of the main sectors of the country's economy, which constantly needs to attract mobile energy resources to carry out technological processes in crop and livestock production
The modes of operation of the engine, and the bearing node of the turbocharger, in which the unit must maintain its performance is characterized by the following modes of their operation: the start of the engine in the conditions of oil-starvation; heating the engine, winter and usually in the condition of high oil pressure in the lubricant system; a dramatic change in speed and temperature regimes; increased gap between friction pairs due to wear of the bearing, which leads to the imbalance of the rotor; a sharp drop in the oil pressure in the turbocharger bearing node due to the failure of the nodes and parts included in the lubricant system [4]
To determine the effect of the measures we have developed to ensure the turbocharger's operability, the duration of the rotor's rotation by inertia after the engine stops will be used as an indicator for comparing the basic version of the turbocharger's operation with the proposed one

Summary

Introduction

Agricultural production is one of the main sectors of the country's economy, which constantly needs to attract mobile energy resources to carry out technological processes in crop and livestock production. Technological operations in agricultural production are associated with the presence of dynamic loads on both the machinery and its engine In this regard, the modes of operation of the engine, and the bearing node of the turbocharger, in which the unit must maintain its performance is characterized by the following modes of their operation: the start of the engine in the conditions of oil-starvation; heating the engine, winter and usually in the condition of high oil pressure in the lubricant system; a dramatic change in speed and temperature regimes; increased gap between friction pairs due to wear of the bearing, which leads to the imbalance of the rotor; a sharp drop in the oil pressure in the turbocharger bearing node due to the failure of the nodes and parts included in the lubricant system [4]. To determine the effect of the measures we have developed to ensure the turbocharger's operability, the duration of the rotor's rotation by inertia after the engine stops will be used as an indicator for comparing the basic version of the turbocharger's operation with the proposed one

Materials and methods

Results and discussion

Conclusion