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    Wyświetlanie 1-7 z 7
    Tytuł:
    Tests of a prototype spark-ignited, direct-injection engine powered by JET-A1 fuel
    Autorzy:
    Świątek, Piotr
    Fuć, Paweł
    Ziółkowski, Andrzej
    Świątek, Lech
    Melwiński, Paweł
    Powiązania:
    https://bibliotekanauki.pl/articles/133682.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    alternative fuel
    test engine
    piston aircraft engine
    jet-a1
    paliwo alternatywne
    silnik testowy
    tłokowy silnik lotniczy
    Opis:
    The article presents a part of the work done in a research and development project being made by SWIATEK Lech Swiatek company. It describes the comparison of different fuels used in piston engines with JET-A1 turbine engine fuel. Next, the proposed combustion process of JET-A1 fuel and a prototype one-cylinder engine are described. In details, a special cylinder head and direct injection programmable computer are presented. In the next part, a designed and built test stand is described. Finally, the results and conclusions are presented. The designed test stand enabled to perform assumed tests. The innovative JET-A1 combustion process was possible to perform and the power and torque were higher in 1900-3000 rpm range than with the gasoline fuel. The designed GDI programmable injection computer enabled to fully control the injection and ignition parameters.
    Źródło:
    Combustion Engines; 2019, 58, 3; 117-120
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Simulation and bench studies of the constructively and technologically modernized high performance piston aircraft engine. Stage I
    Autorzy:
    Ostapski, W.
    Wierzchoń, T.
    Rudnicki, J.
    Dowkontt, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/201721.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aircraft
    piston
    engine
    plasma
    nitriding
    samolot
    tłok
    silnik
    osocze
    azotowanie
    Opis:
    The paper presents an analysis of tribological wear of an assembly composed of cylinder liner and piston rings in a piston aircraft engine. In place of the previously used technology of gas nitriding of the cylinder liner (made out of 38CrAlMo6‒10 steel), formation of multi-component or composite layers by nitriding in plasma discharge environment was proposed. Also, a modification of the previously used chromium coating of the piston rings by plasma nitriding was proposed. A study on the structure and properties of surface layer diffusion manufactured by utilizing the phenomenon of cathode sputtering was carried out. Wear resistance tests were performed on a specially designed bench, with the use of isotope markers. Verification of each of the friction couples was based on using the wear of the ring as a function of the distance trip, and the roughness of the cylinder liner and ring.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 1; 93-105
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Erratum to: Simulation and bench studies of the constructively and technologically modernized high performance piston aircraft engine. Stage I
    Autorzy:
    Ostapski, W.
    Wierzchoń, T.
    Rudnicki, J.
    Dowkontt, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/201954.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aircraft
    piston
    engine
    plasma
    nitriding
    samolot
    tłok
    silnik
    osocze
    Azotowanie
    Opis:
    In Ostapski et al., Bull. Pol. Ac.: Tech 65(1), 93-105 (2017), doi: 10.1515/bpasts-2017-0012, an analysis of tribological wear of an assembly composed of cylinder liner and piston rings in a piston aircraft engine was presented. In place of the previously used technology of gas nitriding of the cylinder liner (made out of 38CrAlMo6-10 steel), formation of multi-component or composite layers by nitriding in plasma discharge environment was proposed. Also, a modification of the previously used chromium coating of the piston rings by plasma nitriding was proposed. A study on the structure and properties of surface layer diffusion manufactured by utilizing the phenomenon of cathode sputtering was carried out. Wear resistance tests were performed on a specially designed bench, with the use of isotope markers. Verification of each of the friction couples was based on using the wear of the ring as a function of the distance trip, and the roughness of the cylinder liner and ring. This note corrects flaws in illustrations published in the original paper.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2017, 65, 2; 273-275
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analiza różnic konstrukcji silników spalinowych samochodowych i do samolotów ultralekkich
    Analysis of combustion engine design differences between vehicle and ultralight aircraft engines
    Autorzy:
    Świątek, P.
    Fuć, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/133434.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    silnik lotniczy tłokowy
    ultralekkie statki powietrzne
    piston internal combustion engine
    ultralight aircraft
    Opis:
    Samoloty bardzo lekkie i ultralekkie są jednymi ze środków transportu, które mogą zapewnić w przyszłości szybki transport między aglomeracjami miejskimi. Źródłem napędu dla takich samolotów są tłokowe silniki spalinowe. W artykule dokonano analizy różnic konstrukcyjnych między nimi i silnikami samochodowymi. Przedstawiono wybrane silniki dostępne na rynku. Przeanalizowano budowę korpusu i głowicy; układy rozrządu; układy dolotowe, wylotowe oraz zasilania; układy napędowe i mocowanie silnika a także bezpieczeństwo i wymogi prawne. Wykazano istotne różnice między obydwiema konstrukcjami, wynikające z odmiennych wymagań i warunków pracy.
    Very light and ultra-light aircraft are among the means of transport that can deliver high-speed transport between urban centers in the future. Propulsion systems for such aircraft use piston internal combustion engines. The article analyzes the structural differences between them and automotive engines. Selected engines that are available on the market have been presented. The construction of the body and head; the timing systems; intake systems, exhaust and power supply; powertrains and engine mounts as well as safety and regulatory requirements were analyzed. There were significant differences between the two structures, resulting from the different requirements and operating conditions.
    Źródło:
    Combustion Engines; 2015, 54, 3; 703-707
    2300-9896
    2658-1442
    Pojawia się w:
    Combustion Engines
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Studying a construction of pistons for the aircraft CI engine
    Autorzy:
    Siadkowska, K.
    Majczak, A.
    Barański, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/973134.pdf
    Data publikacji:
    2017
    Wydawca:
    Polskie Towarzystwo Naukowe Silników Spalinowych
    Tematy:
    aircraft engine
    piston
    CI engine
    opposed-piston engine
    designing pistons
    silnik z przeciwbieżnym układem tłoków
    projektowanie tłoków
    silnik lotniczy
    tłok
    silnik o zapłonie samoczynnym
    Opis:
    This paper examines the selected constructions of piston for aircraft CI engines and discusses tendencies in a development of piston designs. The paper addresses the question of using new materials and coatings to improve quality of pistons and the study of heat transfer and methods to absorb heat from a piston by means of cooling ducts. The selected materials were examined in terms of their advantages and drawbacks. The paper discusses different shapes of piston heads and their impact on combustion as well as indicates other factors behind parameters of combustion and toxic emission like injector shape types, lubrication types and clearances in the combustion chamber.
    Źródło:
    Combustion Engines; 2017, 56, 1; 161-167
    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
      Wyświetlanie 1-7 z 7

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