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Wyświetlanie 1-2 z 2
Tytuł:
World-wide trends in powertrain system development in light of emissions legislation, fuels, lubricants, and test methods
Autorzy:
Bielaczyc, Piotr
Woodburn, Joseph
Joshi, Ameya
Powiązania:
https://bibliotekanauki.pl/articles/2097492.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
global LD exhaust emissions
global HD exhaust emissions
powertrains development
LD IC engines
HD IC engines
test methods
fuel development
globalna emisja spalin
rozwój układów napędowych
silniki spalinowe
metody badawcze
rozwój paliw
Opis:
Both the light- and heavy-duty sectors of the automotive industry are currently under unprecedented pressure from a wide range of factors, particularly in terms of environmental performance and fuel consumption. Test procedures have undergone massive changes and continue to evolve, meaning that standards are becoming much harder to meet, especially in Europe but also in other continents. Such developments force changes in testing methodology, the development of powertrains themselves and their aftertreatment systems and strategies and calibrations. This paper reports and summarises the topics of the PTNSS Congress and attempts a synthesis on the current status of the field of LD ad HD IC engines, hybrid powertrains and electric vehicles, engine fuel and oil and what the coming years may hold for the automotive and fuel industries and other allied fields.
Źródło:
Combustion Engines; 2021, 60, 1; 57--71
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Piston assembly in the most powerful 2.0l diesel engine – case study of the current tribological system and innovative concepts for the future
Autorzy:
Kałużny, J.
Merkisz, J.
Stepanenko, A.
Wróblewski, E.
Gapiński, B.
Piasecki, A.
Gallas, D.
Powiązania:
https://bibliotekanauki.pl/articles/133301.pdf
Data publikacji:
2017
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
piston engine
powertrains development
tribological system
silnik tłokowy
rozwój układów napędowych
system tribologiczny
Opis:
This article is a contribution to the ongoing debate on the scenario of the vehicle powertrains development. The directions of the internal combustion engines development in search of the possibility of effective economic and ecological indicators improvement have been indicated. It has been pointed out that this goal can be achieved through the use of nanotechnology in order to exceed the downsizing barriers resulting from the permissible mechanical loads for conventional materials. The article presents the study of the construction and materials used in the piston assembly of the most advanced four-cylinder, compression-ignition diesel engine currently in manufacture. Original concepts of nanotechnology have been proposed to reduce friction losses in major friction components of future engines with extremely high loads. The main idea is to verify the hypothesis that the sub-micron surface texture of the friction components obtained in the process of applying anti-wear outer layers can lead to an effective reduction of friction losses under real engine operating conditions. Computer simulations of the effects of introducing the surface texture in the upper sealing ring on friction loss confirm this hypothesis by showing friction value being reduced by 3-4% relative to the standard ring profile. In the summary, further advanced technologies designed to effectively utilize the unique properties of carbon nanotubes have been described.
Źródło:
Combustion Engines; 2017, 56, 4; 127-133
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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