Topic
Piston ring
About: Piston ring is a research topic. Over the lifetime, 7771 publications have been published within this topic receiving 41336 citations.
Papers published on a yearly basis
1 / 3
Papers
Patent•
30 Mar 2007
TL;DR: In this paper, a piston ring assembly for an internal combustion engine is described, which includes a plurality of seal rings, i.e., a first seal ring and a second seal ring, positioned on at least a portion of a piston crown periphery axially and radially adjacent to each other.
Abstract: A piston ring assembly for an internal combustion engine is provided. The piston ring assembly includes a plurality of seal rings, i.e., a first seal ring and a second seal ring. The seal rings are positioned on at least a portion of a piston crown periphery axially and radially adjacent to each other within the internal combustion engine and at least a portion of the first seal ring at least partially extends over at least a portion of the second seal ring.
596 citations
TL;DR: In this article, a model is presented to study the potential use of micro-surface structure in the form of micro pores to improve tribological properties of reciprocating automotive components, where the Reynolds equation and the equation of motion are solved simultaneously for a simplified “piston/cylinder” system with surface texturing.
Abstract: A model is presented to study the potential use of micro-surface structure in the form of micro pores to improve tribological properties of reciprocating automotive components. The Reynolds equation and the equation of motion are solved simultaneously for a simplified “piston/cylinder” system with surface texturing. The solution provides the time behavior of both the clearance and the friction force between the “piston ring” and “cylinder liner” surfaces. It is shown that surface texturing can efficiently be used to maintain hydrodynamic effects even with nominally parallel surfaces. It is also shown that optimum surface texturing may substantially reduce the friction losses in reciprocating automotive components. Presented at the 56th Annual Meeting Orlando, Florida May 20–24, 2001
546 citations
TL;DR: In this paper, the nature of the surfaces encountered in the piston assembly, valve train and journal bearings of an internal combustion engine is reviewed and mathematical models of engine tribology are endeavouring to cope with the extreme complexities the incorporation of surface topography potentially brings.
401 citations
TL;DR: In this paper, an analytical model was developed to study the potential use of partial laser surface texturing (LST) for reducing the friction between a piston ring and cylinder liner.
Abstract: An analytical model is developed to study the potential use of part ial laser surface texturing (LST) for reducing the friction between a piston ring and cylinder liner. The hydrodynamic pressure distribution and the time dependent clearance between the pi ston ring and cylinder liner are obtained from a simultaneous solution of the Reynolds equation and the ring equation of motion in the radial direction. The time behavior of the fric tion force is calculated from the shear stresses in the viscous fluid film and the time de pendent clearance. An intensive parametric investigation is performed to identify the m ain parameters of the problem. The optimum LST parameters such as dimples depth, texture area density and textured portion of the nominal contact surface of the piston ring are evaluated.
376 citations
TL;DR: In this article, the authors examined the tribological behavior of the piston ring assembly using nanoparticles as nano-lubricant additives, and the results showed a decrease in the friction coefficient, power losses and wear.
372 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 31 |
| 2024 | 34 |
| 2023 | 59 |
| 2022 | 112 |
| 2021 | 75 |
| 2020 | 135 |