Keywords: D49 diesel engine.

Presented are the results of the development of D49 diesel engine family (3rd generation) featuring electronic fuel control system.

Keywords: rotary engine

The research included simulation of flame propagation process in rotary engine combustion chamber, so as to derive unburned fuel percentage as a function of engine speed and load.

Keywords: gas engines.

Department of Combustion Engineering and Reciprocating Engines of St-Petersburg Agrarian University completed a research targeted at higher fuel efficiency of gas engines. A model has been developed for optimisation of gas engine pre-chamber geometry; as an example, optimal geometrical parameters of type UZAM-3317 engine pre-chamber have been calculated.

Keywords: cam wear calculation.

The article presents a method of cam wear calculation that enables forecast of camshaft durability and life time, both in a design and engine service phases.

Keywords: turbocharger.

Presented are recommendations for improvement of turbocharger compressor air channel configuration targeted at attaining better performance of a vehicle engine. An instance is cited of using said recommendations in the development of commercial turbochargers.

Keywords: marine engine automatic control.

The article discusses issues involved in synthesis of measuring channels in marine engine automatic control and diagnostics systems featuring analog-to-digital converters and voltage/frequency conversion techniques.

Keywords: marine diesel engine diagnostic systems

The article describes a method of development and embodiment of comprehensive algorithms used in marine diesel engine diagnostic systems based on neural networks.

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Method is offered of how to detect operational load carried by reciprocating engine, based on the interdependence between engine torque and crankshaft speed cycle irregularity.Results are given of testing said method for its information value, as applied to one-cylinder engine in steady-state operation and transients.

Keywords: car diesel engine.

The authors present comparative results of dynamic pressure measurements with standard piezoelectric sensor and newly-designed membrane-based and rod-based sensors. Maximum value of dynamic pressure in a connecting-rod bearing is determined as a function of connecting-rod load.

Keywords: liquefied jil-well gas.

The article discusses ways and means of how to retain or improve engine upland performance, including firing a mix of diesel fuel and liquefied gas.

Keywords: crankshaft.

A method is offered whereby crankshaft journal may be rebuilt; it includes installation of a thin-walled steel repair sleeve using moderate welding mode.

Keywords: toxic components in engine exhaust.

The article presents the results of a research project targeted at lowering fuel consumption and contents of toxic components in engine exhaust through implementation of a set of physical and chemical measures.

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