Results 1 to 10 of about 113,767 (263)
Effect of Groove Texture on Deformation and Sealing Performance of Engine Piston Ring [PDF]
Machines, 2022 During the present study, a double groove texture was designed on the surface of a piston ring to improve the sealing performance between the piston ring and cylinder liner.
Tingkun Chen +8 more
doaj +3 more sources
Non-adiabatic pumping in an oscillating-piston model [PDF]
Europhysics Letters 98, 38001 (2012), 2011 We consider the prototypical "piston pump" operating on a ring, where a circulating current is induced by means of an AC driving. This can be regarded as a generalized Fermi-Ulam model, incorporating a finite-height moving wall (piston) and non trivial topology (ring).
Castañeda A. Dittrich T. Sinuco G. +7 more
arxiv +3 more sources
Thermomechanical Fatigue Life Prediction for a Marine Diesel Engine Piston considering Ring Dynamics [PDF]
Advances in Mechanical Engineering, 2014 A newly designed marine diesel engine piston was modeled using a precise finite element analysis (FEA). The high cycle fatigue (HCF) safety factor prediction procedure designed in this study incorporated lubrication, thermal, and structure analysis.
Tao He +5 more
doaj +4 more sources
A nonlinear quantum piston for the controlled generation of vortex rings [PDF]
arXiv, 2010 We propose a simple way to manage interactions in Bose-Einstein condensates to generate vortex rings in a highly controllable way. The vortex rings are generated under the action of a quantum analogue of a classical piston pushing the condensed atoms through a small aperture.
Natalia G. Berloff +1 more
arxiv +3 more sources
Nonlinear quantum piston for the controlled generation of vortex rings and soliton trains [PDF]
, 2013 We propose a simple way to generate nonlinear excitations in a controllable way by managing interactions in Bose-Einstein condensates. Under the action of a quantum analogue of a classical piston the condensed atoms are pushed through the trap generating vortex rings in a fully three- dimensional condensates or soliton trains in quasi-one dimensional ...
Florian Pinsker +2 more
arxiv +3 more sources
The Influence of a Piston Ring Coating on the Wear and Friction Generated during Linear Oscillation [PDF]
Lubricants, 2019 The piston group is responsible for contributing to ~50% of the frictional losses of an engine, which ultimately leads to the waste of fuel. This coupled with the fact that gasoline is a finite resource linked to CO2-emissions, there is an increased ...
Arthur Rozario +2 more
doaj +2 more sources
Tribology Online, 2019 In the tribology of mechanical elements using lubricating oil, verification of the dynamic surface pressure distribution during sliding operation is necessary in order to elucidate the sliding condition.
Kazuya Mochizuki +3 more
doaj +3 more sources
Service life predicting of the piston ring with laser-hardened cylinder liner [PDF]
E3S Web of Conferences, 2023 The article considers the issues associated with the evaluation of hardening treatments influence on the service life of the piston ring in the cylinder of a heavy-duty diesel engine. The statement about the high efficiency of laser hardening of cylinder
Alisin Valery
doaj +1 more source
Lubricants, 2023 Internal combustion engines, during their operation, subject the piston to high-temperature and high-pressure conditions, requiring it to endure intense, continuous reciprocating motion. This strenuous process leads to significant wear and tear.
Weijun Tian +6 more
doaj +1 more source
Simulation on the effect of cylinder liner and piston ring surface roughness on friction performance
Mechanics & Industry, 2022 Considering the surface roughness of piston ring and cylinder liner and deformation of cylinder liner, the friction dynamics calculation model of cylinder liner-piston ring friction pair was established.
Liu Na +4 more
doaj +1 more source