Parameters of Internal Combustion Engine Efficiency While Introducing Additives in the Oil

Гриценко, А. В.; Zadorozhnaya, E. Z.; Shepelev, Vladimir; Gimaltdinov, I. K.

doi:10.24874/ti.2019.41.04.11

Cited by 8 publications

(5 citation statements)

References 22 publications

(28 reference statements)

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“…A number of studies indicate the formation of a diamond-like carbon surface layer when introducing a serpentinite additive. It is the interaction at the carbon level that helps to reduce friction [42].…”

Section: Selection Of Research Materialsmentioning

confidence: 99%

Study on Frictional Properties of Fine Powder Materials

Gritsenko¹,

Baryshnikov²,

Shepelev³

et al. 2022

Tribol. Ind.

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The operating parameters of present-day engines depend on many factors, including the lubrication system. The lubrication system not only reduces friction between the surfaces of moving parts, but also contributes to their cooling and cleans engine parts from carbon deposits and impurities. High environmental requirements are also imposed on the quality of the lubricants, while maintaining their specifications. To that end, various additives are added to lubricating oil. The paper studies the effect of fine powders (enamels) on the wear of friction pairs in laboratory tests. The tests are mainly carried out for all-season synthetic and mineral oils in demand. Such criteria as wear of a roller and upper and lower bearings, specific wear of friction pairs, moment load, and temperature are selected as the effectiveness evaluation criteria of the use of enamels and nanomaterials. Experimental studies show a high efficiency of using enamels as additives to reduce friction and increase the load-carrying capacity of oils. The temperature in the friction layer is reduced by 10-20%, depending on the enamel concentration in the oil. The enamel acts as a third body with a lower friction coefficient and energy to failure, which increases the actual contact area of the friction pairs. The results of the study can be applied in the development of motor oils with fine enamel as an additive.

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Section: Selection Of Research Materialsmentioning

confidence: 99%

Study on Frictional Properties of Fine Powder Materials

Gritsenko¹,

Baryshnikov²,

Shepelev³

et al. 2022

Tribol. Ind.

View full text Add to dashboard Cite

show abstract

“…Our analysis of the methods and means used to control exhaust systems showed that a more reliable method is needed [18]. In our case, the appropriate method is to analyse the composition of exhaust gases in individual cylinders (selectively) in test modes [17]. The essence of the method is that the gas is analysed at the points of the exhaust gas exit from each individual cylinder [22].…”

Section: Introductionmentioning

confidence: 99%

“…It is impossible to achieve meaningful progress in the areas indicated in clauses 4) and 5) without internal and external means to control the technical condition of nodes and systems [17]. The lack of control tools which can reliably determine the technical condition of ICE systems leads to high costs during troubleshooting [18,19].…”

Section: Introductionmentioning

confidence: 99%

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Control of hydrocarbon emissions when changing the technical condition of the exhaust system of modern cars

Shepelev¹,

Гриценко²,

Salimonenko³

2021

FME Transactions

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The most applicable ICE monitoring method is selective control followed by individual corrections for the current technical condition. The combination of a gas analyzer installed individually in each collector, a motor tester, and a loader which provides test modes makes it possible to recognize failures of exhaust and other systems with high accuracy and to assign an individual corrective action to ensure specified environmental and economic parameters. We developed a generalized mathematical model of changes in the composition of exhaust gases depending on changes in the resistance of the catalytic converter, the spark gap of the spark plug, and the capacity of the electromagnetic nozzle.

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“…In our paper, we study the temperature characteristics of the lubricating oil at the outlet of the K27-145 TCR rotor bearing at various operating parameters of the TCR lubrication system. The most informative method is that based on the analysis of the characteristics of engine rundown, a TCR or any other triboconjugation operating with liquid lubrication [30]. We identify the relationship between the oil outlet temperature and the operating parameters of the TCR lubrication system.…”

Section: Introductionmentioning

confidence: 99%

Studying the Temperature Characteristics of Oil at the Outlet From the K27-145 Turbocharger Rotor Bearing

Гриценко¹,

Shepelev²,

Kaliyev³

2022

Tribol. Ind.

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Turbocharging is a promising solution for increasing the specific power of motor-and-tractor equipment, which allows increasing power up to 50%. At the same time, a significant growth of speed, load, and temperature modes leads to a significant increase in the number of failures and a decrease in reliability by 2-3 times. Theoretical and experimental studies established that the temperature of the bearing and oil at the turbocharger drain changes under the influence of the inlet oil temperature to the TCR bearing, the TCR rotor shaft speed, and the change in the oil pressure at the input to the TCR bearing. This allows setting the limits of the TCR bearing performance in extreme operating conditions. The installation of an autonomous TCR lubricating and braking device maintains the required reliability level and increases failure-free operation. The hydraulic accumulator installed in the lubrication system of the engine turbocharger regulars lubricates and cools the rotor bearings when the ICE crankshaft speed drops. The incorporation of a braking device reduces the rundown time of the rotor and thereby prevents oil starvation and dry friction of the rotor bearing. The combined use of the hydraulic accumulator and the braking device minimizes the risk of dry friction and accidental failure of the turbocharger. We proved that the braking device of the TCR rotor built into the intake system of an ICE with the calculated design parameters reduces the rotor rundown time by 30-35%. This reduces the dimensions and operating time of the hydraulic accumulator and simultaneously eliminates surges in the compressor section of the TCR and any breakage of its parts. In these conditions, it is relevant to develop independent systems to lubricate the TCR bearings and replenish them using built-in hydraulic accumulators during start-up, significant loads at minimum crankshaft speeds, and engine stalling.

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Parameters of Internal Combustion Engine Efficiency While Introducing Additives in the Oil

Cited by 8 publications

References 22 publications

Study on Frictional Properties of Fine Powder Materials

Study on Frictional Properties of Fine Powder Materials

Control of hydrocarbon emissions when changing the technical condition of the exhaust system of modern cars

Studying the Temperature Characteristics of Oil at the Outlet From the K27-145 Turbocharger Rotor Bearing

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