Results 11 to 20 of about 54,718 (284)
Vortex ring formation at tube and orifice openings [PDF]
, 1979 The formation, at tube and orifice openings, of vortex rings generated by a piston moving with velocity proportional to time to some power m, is considered.
Pullin, D. I.
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Frictional Losses of Ring Pack in SI and HCCI Engine
Energies, 2023 The vast majority of research dedicated to enhancing the homogenous charge compression ignition (HCCI) low-temperature combustion system is focused on improving controllability, efficiency and emissions.
Grzegorz Koszalka, Andrzej Wolff
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Predictive tool for frictional performance of piston ring-pack/liner conjunction
Journal of Mechanical Engineering and Sciences, 2019 Fundamental understanding of piston ring-pack lubrication is essential in reducing engine friction. This is because a substantial portion of engine frictional losses come from piston-ring assembly.
J. W. Tee, S. H. Hamdan, W. W. F. Chong
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Lubricants, 2022 Friction loss in an internal combustion engine largely depends on elastohydrodynamic lubrication. The piston compression ring is a contributor to such parasitic losses in the piston subsystem.
Swagatika Biswal, Prakash Chandra Mishra
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A model for vortex ring formation in a starting buoyant plume [PDF]
, 2000 Vortex ring formation in a starting axisymmetric buoyant plume is considered. A model describing the process is proposed and a physical explanation based on the Kelvin–Benjamin variational principle for steady vortex rings is provided.
Gharib, Morteza, Shusser, Michael
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Design approach for optimization of a piston ring profile considering mixed lubrication
Friction, 2016 To reduce the friction of a piston ring while maintaining a large oil film load-carrying capacity, an approach comprising of the inverse method and the sequential quadratic programming algorithm was proposed. The approach considers the variation of mixed
Zhinan Zhang, Jun Liu, Youbai Xie
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IMPACT EVALUATION OF PISTON RINGS MOBILITY ON A GAS PASSAGE IN AN INTERNAL COMBUSTION ENGINE (ICE) [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2019 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.
Volodymyr ZARENBIN +4 more
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The effect of friction force and cavitation on wear in piston-cylinder assemblies
MATEC Web of Conferences, 2018 Both in engines and test rigs, cavitation in piston-ring lubrication is a subject studied by many researchers in the past. Although there is no sufficient evidence of cavitation erosion on the surface of the liner, this phenomenon is studied as part of ...
Dellis Polychronis
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Quantification of oil film thickness on the top ring sliding surface by visualization
Nihon Kikai Gakkai ronbunshu, 2023 The oil film thickness of the piston ring at the sliding surface affects oil consumption, friction loss and wear of the ring and liner in internal combustion engines.
Akito WATANABE +5 more
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Shock and Vibration, 2023 The failure probability of piston ring abrasion occupies the forefront in reciprocating compressor cylinder assembly. Due to the reciprocating friction between the piston ring and cylinder liner, the local vibration signal contains typical nonstationary ...
Fengxia Lyu +5 more
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