Results 31 to 40 of about 1,338,115 (406)

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
doaj   +1 more source

Flow physics of planar bistable fluidic oscillator with backflow limbs

AIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract Fluidic oscillators (FOs) are used in a variety of applications, including process control and process intensification. Despite the simple design and operation of FOs, the fluid dynamics of FOs exhibit rich complexities. The inherently unstable flow, jet oscillations, and resulting vortices influence mixing and other transport processes.
Ketan Madane, Chirag Khalde, Ajinkya Pandit, Vivek V. Ranade   +3 more
wiley   +1 more source

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
doaj   +1 more source

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, Tatiana KOLESNIKOVA, Olha SAKNO, Vasyl OLLO, Victor KLIMENKO   +4 more
doaj   +1 more source

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, Kenta SATO, Moritsugu KASAI, Hisanobu KAWASHIMA, Hidekazu SUZUKI, Tsuneaki ISHIMA   +5 more
doaj   +1 more source

Coupling hydrothermal liquefaction and aqueous phase reforming for integrated production of biocrude and renewable H2

AIChE Journal, Volume 69, Issue 1, January 2023., 2023
Abstract Lignin‐rich stream from lignocellulosic ethanol production was converted into biocrude by continuous hydrothermal liquefaction (HTL) while hydrogen was produced by aqueous phase reforming (APR) of the HTL aqueous by‐product. The effects of Na2CO3 and NaOH were investigated both in terms of processability of the feedstock as well as yield and ...
Arturo Di Fraia, Edoardo Miliotti, Andrea Maria Rizzo, Giulia Zoppi, Giuseppe Pipitone, Raffaele Pirone, Luca Rosi, David Chiaramonti, Samir Bensaid   +8 more
wiley   +1 more source

Nonlinear Vibration Feature Recognition Method for Reciprocating Compressor Cylinder Based on VMD-Multifractal Spectrum

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, Caiqian Xie, Fengfeng Bie, Xinting Miao, Yifan Wu, Ying Zhang   +5 more
doaj   +1 more source

Evaluation of an ultrasonic method for measurement of oil film thickness in a hydraulic motor piston ring [PDF]

, 2005
The efficiency of a hydraulic motor depends on the lubrication performance of the piston ring. If the film is too thin then wear occurs quickly, if it is too thick then oil is lost into the cylinder and efficiency is reduced.
Dwyer-Joyce, Dwyer-Joyce, Dwyer-Joyce, Dwyer-Joyce, Furuhama, Kendall, Krolikowski, Pialucha, Sherrington, Sjödin   +9 more
core   +1 more source

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
doaj   +1 more source

Effects of Lubricant Additives on Tribological Properties of Piston Ring-Cylinder Liner Friction Pair [PDF]

Cailiao Baohu, 2023
In order to study the influence of common additives in lubricating oil， such as friction improvers， antifriction agents and detergents，on the tribological properties of engine piston ring-cylinder liner friction pair， and to explore their interaction ...
AHEBOTA·Baheti, DU Xue-ling, E Hong-jun, JIN Jia-jia
doaj   +1 more source