Cordunum pistons increase diesel engine economy and reliability

• Autorzy: Marchenko Andriy , Shpakovskyy Volodymyr , Volikov Volodymyr

Identyfikatory

DOI

10.32933/ActaInnovations.33.3

• Języki publikacji: EN

Abstrakty

EN

Taking into account the oil resources depletion the requirements to fuel consumption of internal combustion engines are now increasing as well as to their reliability and durability. With the continual increase in the number of internal combustion engines in operation, along with the problem of parts of the cylinder piston group wearing out has caused exhaust from such engines to be one of the main source of harmful pollutant emissions in cities. Therefore, environmental requirements have in turn increased dramatically. The engine resource and its efficiency largely depend on the process of fuel combustion in the combustion chamber. Experimental studies aimed to improve the working process on diesel engines by piston insulation have shown an effective decrease in fuel consumption by reducing heat loss and more complete fuel combustion. When oxide ceramic coatings were used on the piston and cylinder head, the maximum power increased and the specific fuel consumption decreased. However ceramic coatings are not widely used due to their peeling. We have developed a technology for the galvanic plasma treatment of pistons, which made it possible to obtain on the pistons surface made of aluminum alloys a ceramic corundum layer with high adhesion to the base metal that does not peel and has electret properties. In 1993, pistons with a corundum surface layer were installed in a shunting diesel locomotive and life-time running tests were conducted. Such pistons increased wear resistance, reduced the wear of cylinder liners, increased the strength of the annular jumpers, and were not prone to burnouts and scuffing. They provided an increase in the resource of the cylinder-piston group of the diesel engine by more than 125 thousand engine hours. The paper provides an analysis of the effect of corundum pistons thermal insulation on significant increasing the, engine power and fuel consumption reduction. Basing on experimental bench studies of a gasoline engine, a tractor diesel engine and long-term operational life tests of diesel engines, an attempt had been made to explain the reasons for the improvement in the engines’ efficiency.

Słowa kluczowe

EN

diesel; engine; locomotive; piston; corundum; layer

PL

diesel; silnik; lokomotywa; tłok; korund; warstwa

• Wydawca: Centrum Badań i Innowacji Pro-Akademia ; Ukrainian Academy of Sciences - Research and Development Centre for Industrial Problems of Development
• Czasopismo: Acta Innovations
• Rocznik: 2019
• Tom: no. 33
• Strony: 28--37
• Opis fizyczny: Bibliogr. 13 poz.

Twórcy

autor

Marchenko Andriy

• National Technical University “Kharkiv Polytechnic Institute” 2, st. Kyrpychova, Kharkiv, 61002, Ukraine

autor

Shpakovskyy Volodymyr

• North-Eastern Scientific Centre of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine 8, st. Bagaleya, Kharkiv, 61002, Ukraine

autor

Volikov Volodymyr

• North-Eastern Scientific Centre of the National Academy of Sciences of Ukraine and the Ministry of Education and Science of Ukraine 8, st. Bagaleya, Kharkiv, 61002, Ukraine

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).