Neue Technik für Höhere Warmfestigkeit von Aluminiumkolben

Dörnenburg, Frank T. H.; Lades, Klaus; Kenningley, Scott

doi:10.1007/bf03225561

Cited by 5 publications

(3 citation statements)

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“…The reason for the large use of CNT additives in oils is confirmed by research results in terms of reducing the friction coefficient and wear contact, increasing the load capacity, and improving thermal conductivity. The most commonly used content of CNT additives in oils (Table 1) is from 0.1 to 0.5% [29][30][31]34,35,40,45], but there are studies that have also used content of 1% [28] and 2% nanoadditives [3]. Researchers also examined the influence of additives with below 0.1% of nanoadditives [32,34,46].…”

Section: Tribological Application Of Nanotubes Of Molybdenum and Othe...mentioning

confidence: 99%

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Tribological Application of Nanocomposite Additives in Industrial Oils

Bukvić,

Gajević,

Skulić

et al. 2023

Lubricants

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The demand for an improvement in the tribological properties of lubricants used in various industrial plants, the automotive industry, and other power transmissions has resulted in the development of a whole family of improved lubricants based on nanotechnology. Especially important are nanotube additives, which significantly improve the tribological properties of lubricants, primarily by reducing the friction coefficient and wear of the coupled elements but also by reducing the temperature load and increasing the stability of the oil film between the lubricated surfaces. The properties of nanotube-based additives were further improved using elements such as metal oxides and compounds based on titanium, molybdenum, aluminum, etc. This paper presents the results obtained in the field of research and application of nanocomposite lubricant additives. It also gives a partial comparative analysis of the research conducted in this field. The primary goal of this paper is to analyze the research results in the field of the application of nanotubes in lubricants and to indicate the importance of their application, such as improving the tribological properties of machines and reducing power losses. Furthermore, this paper shows the negative impact of nanoparticles on the environment and human health and the costs of applying some types of nanoparticles.

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Section: Tribological Application Of Nanotubes Of Molybdenum and Othe...mentioning

confidence: 99%

“…Adding CNT to engine oil can significantly decrease engine friction losses. The high thermal conductivity of the lubricant [19,34] plays a crucial role in cooling the vital parts of the engine, such as the pistons [40][41][42].…”

mentioning

confidence: 99%

Tribological Application of Nanocomposite Additives in Industrial Oils

Bukvić,

Gajević,

Skulić

et al. 2023

Lubricants

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“…This, however, does not significantly affect the conditions of occurrence of liquid friction in the oil film. The most widespread coating technology is that based on graphite composites [1,2,5,16].…”

Section: Introductionmentioning

confidence: 99%

[i][/i]THE IMPACT OF MICROGEOMETRY BEARING SURFACE OF THE PISTON ON THE PARAMETERS OF OIL FILM

Wróblewski

Iskra

Babiak

2016

Journal of KONES. Powertrain and Transport

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The formation of oil film is possible under certain parameters of microgeometry cooperating components the main node of the internal combustion engine, which is a piston-pin-piston rings. In addition, this node is primarily responsible for the formation of mechanical losses. It is advisable to reduce friction losses in the piston-cylinder group lead to an increase in the overall efficiency of the engine and thus reduce the fuel consumption. One way of achieving these objectives is modification of microgeometry of the piston-bearing surface, which cooperates with the cylinder wall. The geometry of the gap between the piston skirt and the cylinder liner greatly affects the friction loss inside the engine. This means that the friction loss is much more affected by the area covered by the oil film separating the mating elements than its thickness. The method to reduce the area covered by the oil film is a modification of the bearing surface of the piston by adjusting the profile. The supporting surface, which performs a reciprocating motion relative to the strokes of the cylinder liner ensure the continuity of the oil film with the smallest possible value of the friction losses at the node piston-cylinder. This paper presents the results of simulation leading which aim to determining the parameters oil film on the friction loss for the modified bearing surface of the piston.

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