Keywords: 3-D Simulation, heat exchange, diesel engines, boundary conditions, finite element method, combustion chamber parts, mating parts, temperature patterns.

The article presents the results of mathematical simulation of temperature, deformation and stress patterns of piston block mating parts («piston–rings–cylinder liner» and «cylinder head–valves»). It includes the description of applied software based on the method in question and the results of simulation of 3-D and 2-D temperature patterns.

Keywords: air-cooled engine, engineering performance standards, boost, calorific intensity, stiffness of a structure.

The article discusses the specifics of air-cooled engine production at Volgograd Motor Works, stages of engine boost and design improvement. Several options of component bundling are analyzed from the viewpoint of efficiency.

Keywords: Turbochargers, two-stage turbocharging systems, engineering development, controllable turbocharging, intercoolers, exhaust gas recirculation, NOx emission.

Two-stage turbocharging systems are demonstrated as an efficient means to reduce NOx emission from medium-speed marine diesel and gas engines to meet IMO Tier-3 specifications. In particular, the papers in question discuss NOx reduction systems based on EGR and Miller cycle. Newly-developed compressors and turbines boast pressure ratio as high as pк = 12 @ efficiency up to 80 %. Furthermore, several turbocharging systems from various manufacturers presented at CIMAC-2013 are described in terms of design features and parameters.

Keywords: MARPOL 73/78 International Convention, CO2 emissions, sea-craft fuel efficiency, optimum speed, diesel engine operating conditions.

The authors offered an efficient way to reduce specific (per transportation work unit) noxious emissions from marine diesel engine. Algorithm of vessel speed optimization has been offered to minimize fuel consumption and noxious emissions.

Keywords: CALS/IP technologies, information space, cylinder sizing, crank gear parts layout, virtual engine.

Components are discussed of information space for the development of a virtual engine based on CALS/IP technologies. A methodology is offered of engine principal part sizing based on analytic methods forming an information space.

Keywords: heat recuperation systems, engine heat balance, calculation method, experimental study.

A method is offered for analysis of engine heat recuperation system based on heat balance parameters. Regressions are provided for heat balance components as applied to stationary diesel-generators operating on various fuels.

Keywords: marine gas engines, dual-fuel engines, NOx emissions, effective efficiency.

Usage of natural gas as a fuel is demonstrated as one of the most efficient ways to meet oncoming emission specifications. The paper discloses some results of ABB research targeted at better environmental performance and fuel economy of marine gas and duel-fuel engines due to improvement in combustion arrangement and development of turbocharging systems.