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DVIGATELESTROENIYE 1 (279) 2020

SYNOPSIS

ANALYSES, DEVELOPMENT AND CONSTRUCTION OF ENGINES
UDC 621.43
Kavtaradze R.Z.

Development of combustion theory in Bauman Technical University: from Grinevetsky method to modern 3D-models (Continuation)
// Dvigatelestroyeniye. 2020. 1. P. 39.
Keywords: Moscow State Bauman Technical University, Reciprocating Engine Department, fundamental theory of reciprocating engines, multi-zone and 3D-models of combustion process, kinetics of noxious emissions formation, local radiation/convective heat exchange.

The article lists and ranges foreground directions of investigations into in-cylinder processes carried out by Reciprocating Engine Department of Moscow State Bauman Technical University. It demonstrates urgency of formulating new theory of engine combustion process, making use of multi-zone and 3D models of combustion process, which are instrumental in research into kinetics of noxious emissions formation, local radiation/convective heat exchange in engine cylinder.
- table, 6 ill., 64 ref.
Contents 2020
UDC 621.436
Myagkov L.L., Sivachev S.M. and Gusev M.P.

Experimental determination of coefficients in the models of plasticity and creep behaviour of piston alloys
// Dvigatelestroyeniye. 2020. 1. P. 1015.
Keywords: diesel engine, silumin alloy, piston, inelastic deformation, plasticity, creep, finite element method.

Inelastic deformation of critical zones of engine piston was investigated using mathematical models for simulation of piston material behaviour caused by low-cycle thermomechanical fatigue. Cylindrical proportional test-pieces cut from blanks of pistons of V-engine type -658, made from silumin alloy 12, have been tested for uniaxial tension and creep. Presented are methodology and results of numerical simulation of inelastic deformation of specimens based on finite element method. The analysis results have been verified with test data.
- table, 8 ill., 13 ref.
Contents 2020
UDC 621.436.12
Savastenko E.A., Savastenko A.A. and Markov V.A.

Practical efficiency of multi-injection technology in diesel engine
// Dvigatelestroyeniye. 2020. 1. P. 1625.
Keywords: diesel engine, common rail injection system, pilot fuel injection rate, multi-injection, mixing, heat release, exhaust gas, reduction of emission and noise levels.

Controllable multiple fuel injection is known as effective technology that contributes into fuel economy and environmental performance. The article presents the results of analyses and experiments for optimizing parameters of controllable multiple fuel injection as a means to simultaneously reduce fuel consumption, noxious emission and noise level.
1 table, 15 ill., 21 ref.
Contents 2020
UDC 621.436
Maslov A.P. and Levtsov M.V.

Kinematic and dynamic analysis of W-engine featuring slave connecting rods
// Dvigatelestroyeniye. 2020. 1. P. 2629.
Keywords: W-engine, master and slave connecting rods, crank gear kinematics, firing order.

Distinctive feature of W-engine with two slave connecting rods is that torque originates from forces exerted to the same crank pin from two master connecting rods and two slave ones. Therefore, efficiency of various firing order patterns may be evaluated for two options: a) power stroke takes place in all four cylinders, and b) power stroke takes place in one or two cylinders, while simultaneously in other cylinders either exhaust stroke finishes, or intake stroke starts.
- table, 5 ill., 7 ref.
Contents 2020
UDC 621.436
Gumerov I.F., Valeev D.H., Kulikov A.S., Garipov R.D. et al.

New generation of diesel engine type KAMAZ P6: development of construction and processing methods
// Dvigatelestroyeniye. 2020. 1. P. 3339.
Keywords: diesel engines type KAMAZ P6, testing for fatigue resistance. noxious emissions, Euro-5 compliance, improvement of combustion performance, SCR system, modernization of test methods, process engineering.

High-powered modern diesel engine cannot be competitive unless combines low emission level (complying with respective regulations in force) with high fuel efficiency. The article discusses design features and test results of new engine family 6 to power 5 KAMAZ truck family. Also, details are given concerning modernization of test equipment and serial production methods for in-line engines.
4 table, 11 ill., 10 ref.
Contents 2020
AUTOMATION AND DIAGNISTICS
UDC 621.311
Potapov V.I. and Galiullin R.R.

Diesel gen set with controllable misfire function
// Dvigatelestroyeniye. 2020. 1. P. 4042.
Keywords: diesel gen set, controllable misfire, improving fuel economy, fuel injection pump characteristics, motor stand tests.

The authors offer and describe a technology of fuel efficiency improvement by use of controllable misfire function at low load. Presented is a fuel injection system featuring controllable misfire following a preset algorithm. Also presented are the results of analyses and relevant experiments.
- table, 4 ill., 10 ref.
Contents 2020
ENVIRONMENTAL ISSUES
UDC 621.43
Obozov A.A., Novikov M.A. and Grishanov P.A.

Analysis of engine type KM-170FA exhaust gas
// Dvigatelestroyeniye. 2020. 1. P. 4346.
Keywords: diesel engine, operation boundary conditions, exhaust gas composition, regression equations.

The paper presents the results of exhaust gas composition of general purpose diesel engine. The engine test procedure covered all probable speed/load points, taking account of driven machinery characteristics.
1 tables, 6 ill., 6 ref.
Contents 2020
FUEL. LUBRICANTS
UDC 621.43.057
Oschepkov P.P., Smirnov S.V. and Zaev I.A.

Investigation into self-ignition of biodiesel
// Dvigatelestroyeniye. 2020. 1. P. 4751.
Keywords: diesel engine, palm-oil, biofuel, biodiesel, ignition delay period, hydrogen peroxide addition.

The article discusses methodology and results of kinetic simulation of self-ignition (in air) of biodiesel added with 20 % of palm oil and hydrogen peroxide. The authors determined maximum percentage of hydrogen peroxide addition to biodiesel, with a view to reduce ignition delay period. Hydrogen peroxide addition is demonstrated as an efficient means to control ignition delay period.
- tables, 3 ill., 17 ref.
Contents 2020
ENGINE BUILDING NEWS
UDC 621.43

Modern engine design technologies (based on CIMAC papers)
// Dvigatelestroyeniye. 2020. 1. P. 5262.
Keywords: distributed power, gen set, medium speed engine, Ricardo, mathematical simulation and computer-aided design.

World demand for decentralized power is driving a market need for cost effective powerplant engines. Ricardo, now a more than century-old company, has cooperated with an engine manufacturer to design a completely new medium speed engine platform to address this market. The engine has a market entry power rating of 530 kW/cyl, initially employing single stage turbocharging, and is designed to operate at up to 250 bar peak firing pressure. The initial production engine will run on HFO/MDO with further Natural Gas and Dual Fuel variants. It was extensive use of analysis and simulation tools and an aggressive program approach that it took just 18 months to go from 'clean sheet' kick-off through to the starting ceremony. The work demonstrates the potential of modern design technologies in the development of new engines. The CIMAC papers are translated into Russian by G.Melnik, PhD.
- tables, 19 ill., 3 ref.
Contents 2020

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