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The article discusses principal issues of «The Concept of Car Industry Development in Russia», primarily, as far as car engines' environmental performance is concerned.

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The article discussed the latest development of CHN18/20 and CHN16/17 engine families to cover rated power range of 190 to 360 kW.

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The results are presented of a comparative analysis of various car engines in terms of their environmental performance. A car engine is investigated a part of a road vehicle considered as a dynamic system with such inherent stem objects as input, process, output, feedback and limitations. Various layouts of vehicle power plants are grouped using morphological analysis based on various scansets of 16 signs of the following principal functional elements: fuel, air, engine and combustion products.

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Discrete vibrational elasticity–mass models of reciprocating engines: demonstrated as most helpful at early engine design stages. Complete spec- m of external disturbances was used at numerical solution of masses' displacement differential equation for a mechanical system (assisted with dedicated program codes).

Keywords: Stirling Engine.

The article discussed optimization issues of Stirling engine power control system based on varying dead space in the engine Internal circuit, and its application to different engine arrangements.

Keywords: engine, indicator diagram harmonic analysis.

According to the indicator diagram harmonic analysis, it is only two first monies that contain information of mean indicated pressure, which conclusion supported by the results of computer simulation presented in the article.

Keywords: engine, crankshaft.

The work referred to be dedicated to enhancement of service life of a crankshaft as a key engine component. The authors offered a crankshaft version featuring lube oil grooves on crankshaft journals. Said grooves were demonstrated as yielding better fuel and oil efficiency of high-speed engines series CH8,5/11 and CH9,5/11.

Keywords: engine, crankshaft.

The article discussed statistically reliable dependence of crankshaft main journals' alignment on external conditions including those of storage, transportation, natural and artificial aging, etc., as well as measurement precision.

Keywords: NOx concentration in engine exhaust gas.

A method is offered to evaluate NOx concentration in engine exhaust gas. The method is based on calculation (with Maxwell formula) of relative num¬ber of molecules in a selected local zone of a combustion chamber.

Keywords: engine, fuel.

Consideration is given to various types of car-powering engines such as gasoline engines, gas engines, those with fuel elements, combined engines, etc., firing natural gas and/or its derivatives, and how the latter affects their efficiency and pollution performance.

Keywords: engine, fuel.

The research concerns respective influence of weighted and lightened fractional composition of engine fuel on combustion parameters. It is shown that diesel fuel needs weighting, while gasoline, contrariwise, needs lightening to ensure smokeless combustion and better mixture inflammability.

Keywords: engine lube oil.

Mechanism is examined of additives' action in engine lube oil. Analysis is offered of alkali neutralization number vs. content of additives in lube oil type ?-10?2 used in SMD-31 engines.

Keywords: engine, fuel.

Water/fuel emulsion used instead of regular diesel fuel is shown to in¬crease wear rate expectancy in precision tribological situations (such as fuel injection pump plunger/sleeve) due to water phase corrosive action. However, wear resistance of fuel injection system parts can be improved by removal of air from the system, since its is air oxygen that contributes into oxidation of iron/carbon friction pairs in the presence of water/fuel emulsion.

Keywords: engine, fuel system.

Fuel system is described of a spark ingnition engine firing mixture of gasoline with ethyl alcohol. Content of ethyl alcohol depends on engine operating conditions. Test results are presented.

Keywords: diesel engine, fuel injection, fuel pump.

Ways are examined of how to improved fuel injection characteristics of a system consisting of fuel pump, HP pipes, and electronically-controlled injector, in order to achieve engine pollution performance specified by Euro-4 or better.