Opalev V. Profitability increase turbo piston diesel engines by perfection of their air-gas path

Gazodinamichesky processes in elements of an air-gas path two-stroke турбопоршневого a diesel engine which essentially influence its fuel profitability. Heightening of fuel profitability two-stroke турбопоршневых diesel engines with opposite mobile pistons by perfecting газодинамических performances of elements of an air-gas path. Methods of physical and mathematical simulation газодинамических processes in elements of an air-gas path of diesel engines on the basis of fundamental positions of gas dynamics, methods of experimental researches of diesel engines and elements of an air-gas path and statistical handling of results of experiments and the theory of scheduling of experiment are applied. For the first time the comprehensive approach to improvement of an air-gas path diesel engines with opposite mobile pistons which consists in a choice of rational parametres of elements of a path on the basis of the coordination of their performances with operating modes of drives is offered. The formula for definition of a power factor of centrifugal compressors with radial vanes, on which fundamentals the offered new dependences for definition of the rational geometrical sizes of three-storied impellors is improved. For the first time for a five-cylinder two-stroke diesel engine the construction of a three-sectional final collector of type "a pipe in a pipe" with impulse transformation of energy is offered. It is proved, that application of three-storied impellors and a choice of their rational parametres, is radial-ring input branch pipes and emptiness of centrifugal compressors has improved their performances vane nozzle. The axial jet turbine with too-stopping a spiral input branch pipe without the device with heightened efficiency is developed. The technique of static trials on which fundamentals inlet windows in cylinders with a replaceable angle of inclination of side walls which has raised fuel profitability of diesel engines 3ТD-3 and 6ТD-2 on 3,6 % are improved is developed. Application ejector systems of exception of a dust from an air cleaner with peripheral rendering of active gas behind the axial turbine has raised power and fuel profitability of a diesel engine 5ТD on 3 %. Results of researches are introduced in SE KMDB. Engine-building.