scholarly journals Mathematical model of individual lubrication system for bearing assembly of internal combustion engine turbocharger

2020 ◽  
Author(s):  
Robert Galimov ◽  
Ilgiz Galiev ◽  
Alexander Kulakov ◽  
Engel Galimov
Keyword(s):  
Mathematical Model ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Lubrication System ◽  
Bearing Assembly

scholarly journals Individual drive of internal combustion engine lubrication system based on switched reluctance motor

2020 ◽  
Vol 6 (2) ◽  
pp. 146-151
Author(s):  
Ihor Holovach ◽  
◽  
Lidiia Kasha ◽  
Ivan Hudzii
Keyword(s):  
Internal Combustion Engine ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Switched Reluctance Motor ◽  
Internal Combustion ◽  
Hydrodynamic Resistance ◽  
Lubrication System ◽  
Resistance Characteristic ◽  
Switched Reluctance ◽  
Reluctance Motor

The article analyses the modern lubrication systems for internal combustion engines. Systems with mechanical drive components that contain mechanical and electronic components have been found to have a number of disadvantages. In particular, when the internal combustion engine is started cold, when the viscosity of the oil is high, the hydrodynamic resistance characteristic rises sharply, which leads to high pressure at low speeds and the drive requires low pump speeds. Again, the increase in oil temperature causes a decrease in viscosity, the hydrodynamic resistance characteristic becomes flatter. This, in turn, reduces the pressure in the lubrication system and requires an increase in pump speed in order to keep the pressure constant. Based on the analysis, the requirements for lubrication systems are formulated and a separate lubrication system with forced oil supply is proposed in this paper. For the drive of pump lubrication system of the internal combustion engine, a switched reluctance motor is proposed and calculated. Such motor by its qualities is one of the most useful in this type of systems.

scholarly journals Modernization of the Turbocharger Lubrication System of an Internal Combustion Engine

2015 ◽  
Vol 129 ◽  
pp. 857-862 ◽  
Author(s):  
Aleksey Plaksin ◽  
Alexander Gritsenko ◽  
Konstantin Glemba
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Lubrication System

scholarly journals MATHEMATICAL MODEL OF AUTOMATION OF THE DIAGNOSIS OF INTERNAL COMBUSTION ENGINES OF THE YAMZ-238 FAMILY

2021 ◽  
pp. 12-23
Author(s):  
Dmytro Borysiuk ◽  
Viacheslav Zelinskyi ◽  
Igor Tverdokhlib ◽  
Yurii Polievoda
Keyword(s):  
Mathematical Model ◽  
Internal Combustion Engine ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Structural Parameters ◽  
Internal Combustion ◽  
Operating Conditions ◽  
Inverse Transformation ◽  
Combustion Engines ◽  
Functional Relationships

Constructive improvement of mobile energy means, in particular their main unit - the internal combustion engine, is directed on: maintenance of differentiation of size of parameters of functioning of mechanisms of systems depending on variability of conditions and modes of operation of cars; increase of technical resource at use of cars on purpose in the set operating conditions. The existing methods and tools for diagnosing vehicle engines do not fully determine their current technical condition, which requires the development of mathematical models to automate the process of diagnosing their components and parts was found іn the analysis of literature sources. The object of diagnosis is a diesel internal combustion engine of the YaMZ-238 family, which is part of the power unit of most vehicles. Mathematical model of automation of the process of diagnosing internal combustion engines of the YaMZ-238 family is presents in the article. Replacing real technical devices with their idealized models allows the widespread use of various mathematical methods. In this case, the internal combustion engine of the YaMZ-238 family, as the object of diagnosis, is presented in the form of a «black box», the input and output parameters of which have a finite set of values. In general, the mathematical model is a system of functional relationships between each diagnostic signal and structural parameters. For internal combustion engines of the YaMZ-238 family, a diagnostic matrix has been compiled, which includes a list of faults and signs of faults. It is determined that the process of diagnosis based on the model of the diagnostic object is possible if the inverse transformation of the number of signs of malfunctions into the number of structural parameters (malfunctions) of the object was unambiguous. The proposed mathematical model of automation of the process of diagnosing internal combustion engines of the family YaMZ-238 will detect faults of components and parts depending on their characteristics.

scholarly journals Cylinder sleeve of the internal combustion engine. Mathematical model of the deformation process

2021 ◽  
Vol 2131 (2) ◽  
pp. 022072
Author(s):  
E Gubin ◽  
S Andriushchenko ◽  
K Mochalin
Keyword(s):  
Mathematical Model ◽  
Internal Combustion Engine ◽  
Deformation Process ◽  
Internal Combustion Engines ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Combustion Engines ◽  
Two Stage ◽  
Cylinder Sleeve ◽  
Neutral Section

Abstract During the operation of internal combustion engines, deformation of the cylinder sleeve is possible, which causes its premature wear during the operation of the “piston ring – sleeve” pair. Imagine the sleeve as a two-stage hollow cylinder with forces applied to it, which cause deflection in the section. It can be assumed that if the greatest deformation of the cylinder is in the section of the application of forces, then with distance from this place it will decrease. At some distance from the point of application of forces, the deflection of the sleeve will be equal to zero. It is required to simulate a mathematical formula that would make it possible to evaluate the possibility of estimating the value depending on the basic geometric dimensions of the cylinder sleeve. A mathematical model of the deformation process of a hollow two-stage sleeve of an internal combustion engine has been developed, an analytical dependence has been obtained for the value of the “neutral” section depending on the main geometrical dimensions of the cylinder sleeve of the engine, a rather extensive analysis of the influence of various parameters on the value of the “neutral” section has been carried out.

Sign in / Sign up

Export Citation Format

Share Document