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    Wyświetlanie 1-5 z 5
    Tytuł:
    Diesel engine for aircraft propulsion system
    Autorzy:
    Gęca, M.
    Czyż, Z.
    Sułek, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/134252.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel engine
    aircraft propulsion system
    power-to-weight ratio
    specific fuel consumption
    silnik spalinowy
    lotniczy układ napędowy
    jednostkowe zużycie paliwa
    Opis:
    Stricter requirements for power in engines and difficulties in fueling gasoline engines at the airport make aircraft engine manufacturers design new engines capable of combusting fuel derived from JET-A1. New materials used in compression-ignition engines enable weight reduction, whereas the technologies of a Common Rail system, supercharging and 2-stroke working cycle enable us to increase the power generated by an engine of a given displacement. The paper discusses the parameters of about 40 types of aircraft compression ignition engines. The parameters of these engines are compared to the spark-ignition Rotax 912 and the turboprop. The paper also shows trends in developing aircraft compression-ignition engines.
    Źródło:
    Combustion Engines; 2017, 56, 2; 7-13
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Experimental research of oil pump for a compression-ignition aircraft engine
    Autorzy:
    Szlachetka, Marcin
    Sochaczewski, Rafał
    Gęca, Michał Jan
    Powiązania:
    https://bibliotekanauki.pl/articles/133729.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel engine
    opposed-piston engine
    aircraft propulsion system
    oil system
    oil pump
    silnik wysokoprężny
    silnik o tłokach przeciwbieżnych
    układ napędowy samolotu
    układ olejowy
    pompa oleju
    Opis:
    The paper presents an analysis of the constructions of oil pumps for an aircraft compression ignition engine. It is a two-stroke liquid-cooled engine with a power of 100 kW. The system has 3 cylinders and 6 opposed pistons. The paper estimates the required oil pump capacity to make the engine components well-lubricated. Next, automotive oil pumps for diesel engines are analyzed to select a correct pump for aircraft diesel engine applications. Three pump constructions of different constructions and dimensions of a rotor were select-ed. A measurement bench was designed and built to test these oil pumps in the range of pump shaft speeds from 0 to 4500 rpm and volumetric flow rate up to 150 l/min. The bench also enables stabilization of oil temperature at the required level within the range from 30 to 120oC. In addition, flow resistance through engine slide bearings was simulated by changing the position of a throttling valve at the pump output to regulate pressure in the range of 0-700 kPa. The obtained capacity characteristics of individual pumps versus on oil pressure and temperature allowed us to find an appropriate oil pump to make individual engine nodes well-lubricated.
    Źródło:
    Combustion Engines; 2019, 58, 4; 142-146
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Coolant pump for compression-ignition aircraft engine
    Autorzy:
    Gęca, Michał Jan
    Pietrykowski, Konrad
    Barański, Grzegorz
    Powiązania:
    https://bibliotekanauki.pl/articles/133232.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    diesel engine
    opposed-piston engine
    aircraft propulsion system
    cooling system
    water pump
    silnik wysokoprężny
    silnik o tłokach przeciwbieżnych
    układ napędowy samolotu
    układ chłodzenia
    pompa wody
    Opis:
    The article presents an analysis of the design of cooling liquid pumps for a compression-ignition aircraft engine. A 100 kW twin-charged, two-stroke, liquid-cooled engine has 3 cylinders and 6 opposed-pistons. In the first part of the study, the amount of heat needed to be removed by the cooling system was estimated to obtain the required volumetric flow rate. Then, the design of automotive cooling liquid pumps for compression-ignition engines with a Common Rail power supply system and power of about 100 kW was analyzed. The aim of the analysis was to select a suitable pump for applications in the aircraft compression-ignition engine. 5 constructions of different shape, diameter and width of the working rotor were selected. The pressure and volume flow rate were determined for a given rotational speed of the pump on a specially built stand. The operation maps of individual pumps were created to select the most efficient types of pumps.
    Źródło:
    Combustion Engines; 2019, 58, 4; 52-57
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigations of the temperature distribution in the exhaust system of an aircraft piston engine
    Autorzy:
    Czarnigowski, Jacek
    Skiba, Krzysztof
    Dubieński, Kamil
    Powiązania:
    https://bibliotekanauki.pl/articles/134051.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    aircraft engine
    exhaust system
    temperature distribution
    silnik lotniczy
    układ wydechowy
    rozkład temperatury
    Opis:
    Ultralight aviation is based on piston engines requiring both performance and reliability. An important aspect is also the requirements for the installation of such an engine on an airframe, especially its heat emission. This is firstly because of the need to ensure proper engine cooling and secondly because composite elements of the airframe skin are not exposed to excessive overheating. For this purpose, bench tests of the temperature distribution of the exhaust system of ROTAX 912 engine were carried out. Measurements were taken at 6 points of the exhaust system, where the temperature of the exhaust gases and exhaust pipes were measured. The tests covered a wide range of engine operation. The paper presents the temperature distribution at selected points in relation to the engine speed and load.
    Źródło:
    Combustion Engines; 2019, 58, 2; 12-18
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of the ignition control on the performance of an aircraft radial piston engine
    Autorzy:
    Czarnigowski, Jacek
    Jakliński, Piotr
    Powiązania:
    https://bibliotekanauki.pl/articles/132922.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    aircraft engine
    ignition system
    power
    toxic emission
    silnik lotniczy
    układ zapłonowy
    moc
    emisja związków toksycznych
    Opis:
    Aircraft piston engines are built with compromise on performance and safety. The desire to achieve the highest power-to-weight ratio leads to the search for solutions that optimize the combustion process. On the other hand, the need for maximum reliability leads to the simplification of the design at the costs of performance. An example of such a compromise is the ignition system of the ASz-62IR engine. In this engine there is a double magneto ignition system with a fixed ignition advance angle. As part of the modernisation of this engine, an electronically controlled dual ignition system was developed, which allows for optimum control of the ignition advance angle in terms of power. This article discusses the results of bench tests of the ASZ-62IR-16X engine with fixed ignition timing and variable timing control. Functional parameters and toxicity of exhaust gases were analyzed.
    Źródło:
    Combustion Engines; 2019, 58, 2; 60-65
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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