Optimizing the tribological performance of textured piston ring–liner contact for reduced frictional losses in SI engine: Warm operating conditions

To estimate the effect of the axial movement of piston rings in the piston grooves on the blow-by in the internal combustion engine (ICE) by an experiment-calculated method. This contributes to the development of practical recommendations for the further improvement of the engine ring seal designs. Abstract theorems were used when modelling the effect of the axial movement of piston rings in the piston grooves on the blow-by in an ICE. They are based on the fundamental theory of heat engines, thermodynamics and hydraulics. The ICE running was analysed using design-theoretical research methods. The effect of the axial movement of piston rings in the piston grooves on the blow-by in the ICE was established. This creates prerequisites for a more accurate assessment of their sealing capacity and for ways to further improve them. Calculated dependences

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“…9). The deterioration of the sealing properties of the piston rings with increasing the engine speed was noted earlier in other studies [21,22].…”

Section: The Results Of the Calculationssupporting

confidence: 72%

Impact Evaluation of Piston Rings Mobility on a Gas Passage in an Internal Combustion Engine (Ice)

Заренбин¹,

Kolesnikova²,

Sakno³

et al. 2019

SJSUT.ST

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“…However, few studies have looked at these two effects simultaneously (i.e. either surface topography's effect on oil consumption [4,5] or friction [6][7][8][9][10][11] have been studied). Their simultaneous investigation is necessary, since they are clearly interlinked.…”

Section: Piston Ring-liner Lubricationmentioning

confidence: 99%

Looking into a laser textured piston ring-liner contact

Vlădescu

Ciniero

Tufail

et al. 2017

Tribology International

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“…A plain bearing is a crucial tribological component in IC engines; it contributes to increasing energy losses at cold temperatures [3]. Surface grooves in an interface improve the tribological performance in a number of engineering applications [9][10][11][12]. Therefore, this study numerically investigates the effect of grooves on the journal surface of big-end bearing in an IC engine during warm-up.…”

Section: Introductionmentioning

confidence: 99%

“…Cont.Energies 2018,11, 3515 Hydrodynamic frictional torque in a (a) textured journal surface-bearing interface;(b) untextured journal bearing during the warm-up period of an IC engine.…”

mentioning

confidence: 99%

Hydrodynamic Conjunction of Textured Journal Surface—Bearing for Improved Frictional Response during Warm-Up of an Internal Combustion Engine

2018

Self Cite

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Considerable prime global energy is used in the transport sector. Significant energy is lost to overcome the internal friction of engines in transport vehicles. Journal bearings are crucial tribo-pairs and passive components that cause energy loss. Frictional losses increase extensively during the warm-up period of an engine due to high lubricant viscosity. Recent tribological developments have shown that surface textures can be a potential solution to reduce friction. A numerical investigation is performed to evaluate the effect of surface texture on the frictional and lubrication performance of a journal bearing at varying thermal operating conditions in an internal combustion engine. Temperature variations during engine warm-up are considered with oil rheology to observe texture-based improvements. Surface texture substantially reduces frictional energy loss during engine warm-up. Eight different monograde and multigrade engine oils are considered, and consistency is observed in texture-based improved outcomes.

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Optimizing the tribological performance of textured piston ring–liner contact for reduced frictional losses in SI engine: Warm operating conditions

Cited by 55 publications

References 34 publications

Impact Evaluation of Piston Rings Mobility on a Gas Passage in an Internal Combustion Engine (Ice)

Impact Evaluation of Piston Rings Mobility on a Gas Passage in an Internal Combustion Engine (Ice)

Looking into a laser textured piston ring-liner contact

Hydrodynamic Conjunction of Textured Journal Surface—Bearing for Improved Frictional Response during Warm-Up of an Internal Combustion Engine

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