Key words: engines.

An improved dependence is given for calculation of the main temperature, and dependence is offered to evaluate the ignition delay time with and without the charge rotation in the engine cylinder, the combustion chamber being semi-divided, the engine start under low temperatures, data based on investigations, carried out on an experimental diesel engine, manufactured in DDR.

Key words: engines.

Improved accuracy of calculation models are described with decreased extent of the initial information, necessary for numerical calculation, using the computer; it is based on requirements of finite element approximations of the diesel engine frame. A space frame with identified parameters of rod finite elements is shown as the more perspective and reasonable.

Key words: engines.

Evaluation is given of the effectiveness of different circuits for heat utilization by the exergetic method. Several versions are considered of the heat utilization of a great tonnage tanker of the service power 12 365 kW for operating conditions. An exergetic balance is given, and also the circuit for the heat utilization of an engine marine installation.

Key words: engines.

A technique is given of a lay-out of the thermodynamic cycle with a charge change, some cycles of four-and two-stroke engines with the free gas-turbine supercharging, including the pulse supercharging are described.

Key words: engines.

Dynamic models of in-line and V-engines are described, and also of their compressors and pumps, provided for their clear power analysis.

Key words: engines.

A technique of an experimental investigation is described, and heat release coefficients and hydraulic resistance of regenerator caps are given.

Key words: diesel.

Relations are considered between the lowest volumes and masses of widely used engine heat exchange systems at a given engine efficiency, output and other equal initial conditions. Dependences are given to define the thermal effectiveness, relation between the low pressure and the heat carrier consumption, considering the joint characteristic of both fan and heat exchanger, and also relations between geometrical parameters, abequate to minimum volumes and masses of heat exchangers.

Key words: diesel.

An algorithm circuit is given, and also the structure and description of a properation principle of the automatic device action for the new method of the electric modelling of cylinder-piston group temperature fields for RIC engine.

Key words: engines.

Results are given of experimental investigations of the diesel engine 6ChN13/14 (YaMZ-236) with single-speed and all-speed governors. Test bed investigations of the engine of the automobile MAZ-500 and its road tests showed that the si gle-speed governor contributes to improvement of the automobile effectiveness and to the decrease of the noxious emission to the environment.

Key words: Engines.

It is shown that contamination agents should not be mixed and removed together with oil deposits, that is proved, using models of contamination accumulation processes and the motor oil alkalinity action, when evaluating by nonlinear methods, using experimental data.

Key words: Engines.

A method is offered and described of the non-destructive control and measurement of the passage part of nozzle spray housings, including: a zone located below the precision pair housing-needle, locking cone, well and nozzle holes, this method was developed and used in YaPI during investigations. This method is also recommended for the selective control in the engine production.

Key words: engines.

A new method is offered of the calculation evaluation of the automobile fuel filter contamination capacity, based on theoretical regularities of contamination accalat uiaon in porous materials, it uses the service statistic data.

Key words: engines.

A technique is given of the definition of specific technical and economical parameters of an engine and other units on the base of an experiment or observation of parameters, considering the analytical parameter dependence on the automobile run or the installation operation time.

Key words: engines.

A calculation technique is given, and also the engine characteristic building and propulsion installations for ships with variable pitch propeller. The optimum operation conditions and control panel for the engine and variable pitch propeller, acceptable for ships, are described.

Key words: engines.

Investigation results are described of the locomotive diesel-generator 10DN20.7/2X25.4 noise emission at two versions of the second supercharging stage. Noise-grammes are built and a value of the noise level is defined, in dependense of the engine operation conditions. The effect is considered of a driven blower of two types — centrifugal and volumetric — on the noise level of the diesel-generator 10DN20.7/2X 25.4. The diesel-generator noise spectrograms are compared, using two versions of the second Г r supercharging stage of the driven blower.

Key words: engines.

A problem is considered of a low frequency noise in the engine exhaust system. An interconnection is indicated between low frequency noise levels and high frequency noise, emitted at the exhaust. Constructive decisions of exhaust system elements are offered, providing decrease of the noise at exhaust, complying with a developed model of the noise forming.