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Wyszukujesz frazę "cleanliness code" wg kryterium: Temat


Wyświetlanie 1-2 z 2
Tytuł:
Wpływ cząstek stałych na tendencję oleju napędowego do blokowania filtrów
The impact of abrasive particles on the diesel fuel filter blocking tendency
Autorzy:
Żółty, Magdalena
Dybich, Kornel
Powiązania:
https://bibliotekanauki.pl/articles/1834237.pdf
Data publikacji:
2020
Wydawca:
Instytut Nafty i Gazu - Państwowy Instytut Badawczy
Tematy:
cząstki stałe
twarde cząstki
klasa czystości
olej napędowy
abrasive particles
hard particles
cleanliness code
diesel fuel
Opis:
This article presents the results of the work, the purpose of which was to conduct extensive research on the content of diesel fuel impurities together with determining the purity class and the tendency to block filters in various temperature conditions. 86 diesel fuel samples of various manufacturers were obtained at gas stations. They were taken from distributors, since the latter constitute the last link in the distribution chain, from which the fuel directly goes to the end user, who may suffer problems related to the failure of the injection system. The scope of tests covered the parameters included in the PN-EN 590 specification, with particular emphasis on the total content of impurities, as well as additional tests, i.e. cleanliness class (parameter included in the World Fuels Card), in the range of particles 4, 6 and 14 µm, tendency to block filters at temperature at room temperature and at –1°C and, for selected samples, of elemental content. Samples were taken from October 2018 to July 2019. They covered both transitional periods as well as summer and winter periods. Currently, TF (Task Force) operating within the WG 24 Working Group on diesel fuels is conducting research aimed at developing the position of CEN on problems related to the presence of solid particles in diesel fuel and determining the purity class limit as well as method for determining the number of particles in order to introduce it into the EN 590 specification. Correlations between the number of particles and parameters such as the tendency to block filters at room temperature and at reduced temperatures (3 or –1°C), total impurities content, water content or the presence of such elements like Fe, Cu and Si are also analyzed. The analysis of the obtained test results allowed to conclude that the problem of particulate fuel pollution concerns a large group of diesel fuels available on the domestic market. Among other things, it can be mentioned that these fuels are contaminated with metal particles that get into the fuel as a result of wear of friction surfaces and together with impurities coming from outside the system.
Źródło:
Nafta-Gaz; 2020, 76, 3; 205-214
0867-8871
Pojawia się w:
Nafta-Gaz
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Understanding technical cleanliness: importance, assessment, maintenance
Autorzy:
Faber, Joanna
Brodzik, Krzysztof
Nycz, Marta
Powiązania:
https://bibliotekanauki.pl/articles/2097549.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Naukowe Silników Spalinowych
Tematy:
technical cleanliness
component cleanliness code
contaminations
particles
optical microscopy
SEM
scanning electron microscopy
czystość techniczna
kod czystości komponentu
zanieczyszczenia
cząstki
mikroskopia optyczna
skaningowa mikroskopia elektronowa
Opis:
Development of the automotive industry, including so-called dowsizing and rightsizing, entails the need to ensure, and hence to verify, the stringent cleanliness levels of an increasing number of car components. The assurance of proper cleanliness level requires knowledge of the entire production process and precise information on the contaminants that will allow to identify their sources. Obtaining reliable cleanliness information requires establishing of many different factors, i. a. selection of proper contamination extraction and collection technique, proper parameters of extraction, validation of extraction procedure, methods of particles analysis. Analytical techniques which are implemented include gravimetric, optical microscopy and advanced techniques like scanning electron microscopy. This work present’s actual state of knowledge regarding technical cleanliness analysis of components. Important aspects of QA&QC in technical cleanliness assessment are also discussed.
Źródło:
Combustion Engines; 2021, 60, 3; 41--50
2300-9896
2658-1442
Pojawia się w:
Combustion Engines
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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