Keywords: engine.

The reason is given for using the thermodynamic approximation when defining the mean charge temperature in the cylinder and the mean coefficient of the gas heat release to the cylinder walls, using coordinates T-V and a2-V. The finite equations are received for calculation of thermodynamic parameters, and their use for practical calculations is shown.

Keywords: diesel engines.

Results are shown of parameter optimization for the Stirling engine based on ideal isothermal model following the precise quality criterion, based on the dimension cycle characteristic, and also the regression formula for calculation of optimum parameter values is given.

Keywords: diesel engines.

Existing methods of the boundary condition definition are considered in branches of air engine cycles. Their main drawbacks are pointed out. A new method of the boundary condition task in branches is taken under consideration, where there are no empirical coefficients.

Keywords: diesel engines.

Empirical formulas are given for mean molar heat capacity of hydrocarbon fuel combustion products within the temperature range 0 to 2500° C, which means the elementary functions of three parameters, calculated by the method of the least squares.

Keywords: diesel engines.

The calculation-theoretical analysis is used to establish an identical connection between the engine cycle indicator efficiency and parameter of the thermodynamical loss, that can be easily calculated, using t he heat release law diagram. The calculation technique of the heat release law and the engine indicator diagram when designing is being developed, which can be also used for comparative analysis of the combustion process of the engine of interest under different conditions.

Keywords: diesel engines.

The automobile supercharged diesel engine JM7. is taken as an example to consider the relative combustion chamber diameter on the engine charge movement in the chamber, and the thermal load distribution along the surface of the cylinder head fire bottom. The essential decrease of the heat stress is analyzed at increase of the combustion chamber diameter.

Keywords: diesel engines.

Dependence of the cooling fin area on its profile is included into the differential heat conduction equation. Heat flows as functions of limiting values are studied, and solutions meeting the physical condition requirements are given.

Keywords: engines.

Statistic investigation is carrying out of the cylinder liner wear for the engines SMD, following test bed and service test results. Factors are given effecting the cylinder liner wear resistance. A mathematical model is offered for prediction of the cylinder liner wear resistance when designing tractor engines.

Keywords: engines.

A mathematical apparatus is offered to use for quantity and quality evaluation and effect of main factors on the nature and course of the oil evaporation from the cylinder liner. The apparatus is developed on the base of the accepted by authors elementary physical model.

Keywords: engines.

A quantity factor of detergent effectiveness in motor oils is offered, it is shown that the calcium aksylsalycilates and their ? ombinations with the neutral calcium sulphonate have the most effective washing features.

Keywords: engines.

The approaching engineering method is described of definition of the limiting value of the dynamic coefficient for the axial loading efforts in the plunger drive of the engine fuel pump, and also results of the dynamic coefficient are given, calculation and experimental investigations show significant quality and quantity coincidence (the maximum difference is 6 to 8%) of dynamic calculation and experimental coefficient, in dependence on plunger diameter and fuel pressure in subplunger space.

Keywords: diesel engines.

The author developed a method of calculation of the engine gas timing system with camshaft mechanism, and general remarks are given concerning selection of main parameters of this mechanism.

Keywords: engines.

The deviation of the piston shape during treatment is shovn. which effects the geometicul shape of itslonhitudinul aud cross sections and its surface interlocation. Investihation resnlts are hiven of th; piston stiffnes in defferens sections and jdiretions and it was found out that the non-even diston stiffness mostly effects the forming of its diametric sizes durung turning.

Keywords: engines.

Geometrical calculations are shown, and also one of methods of non-master machining for stators and rotors RPD. A case of von-master machining is taken under consideration when stator RPD is marked by the two-leg out of centre epicycloid, and a triangular rotor is an internal envelope of the stator curve family at the planetary movement. Arrangement of mechanisms are shown, being the basis for milling machines to treat RPD stators and rotors by the cylindrical cutter.

Keywords: engines.

The reason is shown to consider the stochastic component at a micro-electromotor development, loading a microeelectrodrive, and random jamming in the control signals at power source outlet, and also description of the test bed developed for this purpose. Arrangement and operation of two electromechanical generators for accidental signals and three devices of accidental signals are described.

Keywords: engines.

Tasks of the stock control by means of computer are considered based on the existing control system analysis, planning of mechanical and assembling shops Norms of parts assurance storings are defined at stocks, using the method of the statistic modelling.

Keywords: engines.

Ways of fuel economy are considered during the operation of the river fleet ships, based on theoretical general conclusions and experimental investigations, carried out at LIVT, marine diesel engine chair, and west-north river steam-ship line A number of recommendations are given, methods and measures for fuel economy, which can be carried out practically by a ship crew.

Keywords: engines.

Results are given of motor oil tests at low temperatures and viscosity effect on the engine start. Oil tests are carried out on different instruments, and the oil viscosity check for the engine start is carried out on the average capacity engines. Oil marks are offered for the engine operation, considering oil start features.

Keywords: engines.

Calculation results are given of the engine service dependence before the first inspection of high speed one type diesel engines on parameters of the cylinder-piston group performance.

Keywords: engines.

Laboratory sample tests are shown on cavitation-fatigue strength and full-scale investigations. Erosion distribution uneveness of the liner is explained by different oscillation amplitudes of its walls at top and bottom zones. The most oscillation amplitude is typical for the bottom liner zone, where the maximum destruction area is iormed.

Keywords: engines.

Experimental investigation results are given of experimental wear resistant oil additives on the engine 2Ch10,5/13, and also of so-called friction modiiicators. It is shown that the motor oil wear resistant properties can be improved by adding special additives.

Keywords: engines.

Main results are given of laboratory and motor tests of filters for fine fuel cleaning, made of new types of filter materials.

Keywords: engines.

Problems of making a local information-search thesaurus of the diesel engine industry are considered, its principles, lexical content and perspectives for development.

Keywords: engines.

The automatic control system for industrial tractor diesel engines is considered, its main function, structure, technical characteristics.

Keywords: engines.

Investigation results are given of some parameters of the injection of hydraulic lock nozzles with additional self-feeding on the motorless test bed for car-and tractor diesel engines. Infection parameters of these nozzles have been investigated with different above-needle chamber volumes and clearance between precision needle and body surfaces, the diffuser has from 4 to 19 mem. Recommendations are offered for further investigations.