Keywords: diesel engines.

A method is described of the experimental definition of energy loss at the supercritical gas outflow through outlet channels during the static scavenging of gas outlet channels of the diesel engine cylinder cover. At small valve opening gas consumption limits are shown to have place when pressure relations are less than the critical value, which shows the static pressure recovering in the outlet channel part. Values are given of coefficients of the fuel pressure recovering and effective passage area of channels at different pressure relations and different valve lifts for cylinder covers of diesel engines ChN26/26 and ChN30/38 of the Kolomna locomotive Works.

Keywords: diesel engines.

Results are given of the experimental investigation of gas- collecting casings of axial type units for the diesel engine supercharging. It is shown that the flow twist in the axial casing, which shifts the angle epure of the flow stream on nozzle ring blades into the field of negative angles of attack, allows to decrease the curvature of the nozzle ring channel, and finally decrease its profile losses. Coefficients of losses of axial casings, having different geometric relations, are within the range 0.10˜0.15.

Keywords: diesel engines.

A package of applied programs is described for the numerical investigation of drum type engines. Its use is shown at the effect of the construction number of features (kind of the wash motion, length of the connecting rod, number of cylinders etc.), of the drum type engine on the balance.

Keywords: diesel engines.

Standard and perspective diesel fuels are considered, having different fraction composition. A connection is establish of physical-chemical parameters, including the diesel engine starting characteristics and its effectiveness. At the higher cetane number the fuel starting time is essentially less, and at the cetane number up to 57 the effectiveness of the swirl- chamber diesel engine is to increase.

Keywords: diesel engines.

One of reserves is shown for decrease of fuel service consumption in heat-power locomotive installations by decrease of the power take-off for the fan drive of the cooling chamber. The evaluation is made to increase the fuel service consumption for different losses of the cooling system heat dissipation.

Keywords: diesel engines.

A method is described as well as investigation results at the turbocharger setting for the preferable operation of the shunting locomotive diesel engine.

Keywords: diesel engines.

A method is offered to calculate reserves of machines on data of reserves of their elements, considering stochastic dependences on the reliability between elements. The method use is shown, giving an example of calculation of cylinder-piston group diesel engine reserves.

Keywords: diesel engines.

A calculation technique is offered of the permissible non- uniformity of the cycle fuel delivery to diesel engine cylinders. An analysis is given of its effect on parameters of the fuel effectiveness and engine dynamic characteristic, their interconnection is shown. It is defined that in some cases when selecting the cycle fuel delivery non-uniformity dynamic parameters are the defining factors.

Keywords: diesel engines.

A non-linear differential equation of a second order is given, establishing connection between the crankshaft movement law and active force torques. It was received on the^ base of the analysis of the dynamics of the multicylinder in-line engine with the central KShM, considering the crankshaft angle speed variation within the cycle under steady state conditions. Calculation examples are given of this equation of the crankshaft angle speed curve within the cycle under steady state conditions for the engine ChN22/32 (VAN 22).

Keywords: diesel engines.

Methods are shown, recommended for designers-engine experts to calculate bith oil layer thickness and oil consumption through the gar: the piston ring-cylinder. Programs are given for the microcalculator, type of "Electronics BZ-34", and the accuracy of calculated values is evaluated.

Keywords: diesel engines.

A method is described to define the mean indicator pressure of a marine diesel engine having no indicator drive. The comparison of results is given, received by the above method together with measurement data, the method errors are defined.

Keywords: diesel engines.

A task putting is given of a multidimension optimization of energy transformation processes in autonomous asynchronous diesel-generator, having the controlled supercharging and injection. A technique for its solution is offered as well as a structure of the multiprocessor unit control system and optimization of energy transformation processes within the operation parameter limit, in the range of loads and factors of ambient conditions.

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Keywords: diesel engines.

A variation of the diesel engine cylinder liner vibroactivity under service conditions is investigated. Evaluation is offered of the cooling chamber technical condition on the variation of the cylinder liner natural oscillation frequency.

Keywords: diesel engines.

An analysis is given of the diesel engine Chi4.5/20.5 operating cycle, when a part of the diesel fuel is replaced by methanol, delivered at the inlet together with the air charge. Reasonable relations of both diesel fuel and methanol delivery are defined. Recommendations are given on improvement of mechanical load parameters and increase of the used methanol portion.

Keywords: diesel engines.

Investigation data are given of a medium speed diesel engine loading by the VRSh blade turn. The most effective means to prevent thermal overloads is shown to be the lower rate of the signal perfection going from the installation control handle. Recommendations are given on how to select setting parameters of protection devices.

Keywords: diesel engines.

A device and the test bed operation are described to check for the valve tightness by measurement of the pressure of the air flowing through gaps between the valve and its seat at the calculated compressed air pressure and fixed time.

Keywords: diesel engines.

Operation results are compared of five consecutive modifications of marine low speed diesel engines with full-flow valve scavenging, made by PO BMZ. Parameters of the forming level, fuel effectiveness and reliability are selected to evaluate and compare operation results, which is useful for development of future modifications.

Keywords: diesel engines.

Methods are analyzed as well as diesel engine start systems, using solid sources of the start gas mixture (PGS). Results are given of experimental investigations of the starting system for a diesel engine energetic installation, using the solid PGS source, based on the technical natrium above-peroxide, mixed with the diesel fuel. An expression is offered for calculation of the starting charge of the solid PGS source.

Keywords: diesel engines.

Results are given of comparative speeded-up tests on how petrol, liquid carbon and slate fuels contribute carbonization of both multispray diffuser nozzle holes and combustion chamber details of a high speed diesel engine. The base of speeded-up tests is the triple fuel injection through the standard diesel engine nozzle.

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Keywords: diesel engines.

A new method to use gas in a RIC engine shows that at the gasoline-gas-air mixture combustion in the cylinder the scarce gasoline consumption will decrease by 27 to 40 % as well as the toxical substance concentration in exhaust gases will decrease 1.8 to 11.5 times.

Keywords: diesel engines.

Practical aspects are considered of the use of the criterion of vibration properties of transport piston engine constructive diagrams.