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Biuletyn Wojskowej Akademii Technicznej
PL Scharakteryzowano niskotemperaturowe właściwości olejów smarujących i ich wpływ na rozruchowy moment oporu silników spalinowych. Omówiono wpływ momentu oporu silnika na jego właściwości rozruchowe w niskiej temperaturze. Przedstawiono empiryczne formuły analityczne wyznaczania rozruchowego momentu o[...]
EN The flow-temperature properties of lubricant oils and their influence on the starting resistance torque of piston combustion engines are characterized. The resistance torque influence on the determination engine starting properties at low temperature is described. The empirical mathematical formulae[...]
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Journal of KONES
EN The article presents an analytical determination of power and torque of internal combustion engines of small power. It measured actual power and torque characteristics of internal combustion engines of small power. Three types (methods), braking (receiving power via a hydraulic pump, generator and a[...]
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Journal of KONES
EN Current internal combustion engine technology for road vehicles allows us to meet the existing and planned future standards for emission. However, the motion of a moving vehicle used in real operating conditions is frequent changes of the values of power in the powertrain. The analysis of the result[...]
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Journal of KONES
EN Combustion knock in a hydrogen fuelled engine has many different characteristic as compared to knock occurring in the gasoline engine. This is a result of differences in the gasoline and hydrogen combustion mechanisms which lead to knock. Hydrogen as the engine fuel is able to produce combustion kno[...]
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Journal of KONES
EN On the basis of the internal heat balance of CI engine with direct fuel injection, the quantity of heat transported during the combustion process from the combustion zone was determined. The real indicator diagrams are the bases for determination of the heat release Characteristics during the combus[...]
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Journal of KONES
EN In the article has been described some problems associated with the production of biogas and using it as a fuel in internal combustion engines. In Poland biogas is mostly generated from deposits from sewage treatment plants, agricultural waste and from landfills. The biogas chemical composition depe[...]
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Silniki Spalinowe
PL W artykule przedstawiono wyniki badań dotyczące możliwości zastosowania wybranych charakterystyk częstotliwościowych sygnału przyspieszeń drgań głowicy silnika spalinowego do szacowania wartości luzu zaworów silnika spalinowego. Wskazano na konieczność wstępnego przygotowania sygnału przyspieszeń dr[...]
EN This article presents results of research referring to applying selected frequency characteristics of signal of vibration accelerations of combustion engine's head to assess valve clearance of combustion engine. The authors indicate necessity to perform preliminary preparations of signal of vibratio[...]
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Journal of KONES
EN Research results of novel silumins on pistons for combustion engines, which have high mechanical properties within the range of piston higher operating temperatures, 100-300°C, are presented in the paper. Silumins contain enlarging concentration of the nickel and copper alloy additives up to 4.0, an[...]
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Journal of KONES
EN Modern diesel engines reach high power out put per volume unit. This is the main reason, why modern passenger cars and other medium size vehicles are powered by those engines. It is very important to keep reliability, characteristic for past generations of diesel engines. It is a difficult task, bec[...]
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Journal of KONES
EN This article describes the basic principles for determining the geometry of Wankel rotary engines. An attempt is made to clarify if the characteristics of the rotary engine are such that the engine may be brought into more general use as an internal combustion hydrogen engine. An analysis of the dat[...]
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Journal of Polish CIMAC
2012 Vol. 7, no 1 125-132
EN This paper presents a model test stand for testing the cooling system with increased coolant temperature. On the model stand, as a result of the research, determined the characteristics of temperature and pressure courses coolant. The study was preceded by the determination of the intensity of the l[...]
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Journal of KONES
EN High demand to improve exhaust gas emission characteristics while keeping fuel economy requires a new technology for engine control. One of the methods used to meet these requirements is a convenient and real-time cylinder pressure monitoring. The final aim is balanced combustion and reliable, emiss[...]
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Journal of KONES
EN It is important that marine diesel engines run in their normal condition in order to maintain correct efficiency, low pollution and high reliability. The record of in-cylinder pressure pattern and its evaluation is one of the most powerful sources for experimental based analysis of internal combusti[...]
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Archives of Acoustics
2017 Vol. 42, No. 3 475--481
EN The leading thought of the present text is that the internal combustion engine noise – regardless of all possible inconveniences – is a good information carrier that allows for the explicit diagnostics of such subtle defect as the valve face decrement which is so small that it is in practice ‘unnoti[...]
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Journal of KONES
2016 Vol. 23, No. 3 225--232
EN Currently produced internal combustion engines used in transportation, must meet very stringent legislative requirements EURO VI, for the limited emissions of exhaust gases: CO, HC, NOx, PM, PN. One of the most toxic components and the most difficult to eliminate are nitrogen oxides NOx, which curre[...]
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Szybkobieżne Pojazdy Gąsienicowe
2016 nr 1 (39) 173--182
EN Modern systems that control the operation of internal combustion engines provide many possibilities of shaping the characteristics of such engines. Additional special functions extend the technical capabilities of a vehicle, particularly under extreme conditions. Such functions also facilitate and i[...]
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Journal of KONES
EN This article describes the basic principles for determining the geometry of different types of power transforming machines with rotating pistons. Those machines can be used as internal combustion engines, pumps, hydraulic engines, compressors, flowmeters, feeders etc. An attempt is made to clarify w[...]
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Journal of KONES
EN This article describes the basic principles for determining the trajectory of the apex seals of Wankel rotary engines. An attempt is made as the Wankel engine seems to be the convenient as the burning hydrogen fuel engine. The main advantage is particularly intensive cooling. The main disadvantage i[...]
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Journal of KONES
EN Measurements were made during downward propagation of a flat flame in a lean limit methane/air mixture. It was observed that the limit flames are very thick and that heat losses to the walls caused extensive cooling of the product gases within 0.05 m behind the propagating flame. Analysis of all dat[...]
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Journal of KONES
EN A new approach is needed to test particle filters for retrofitting Diesel engines. Considering the toxicity of the particles as also the physical and chemical attributes of particle filters, the optimal scheme is to test the components themselves independent of the deployment. That scheme ensures th[...]
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