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Journal articles on the topic 'Piston ring'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Higashimachi, Takao, Takahide Nakayama, Takenori Hirakawa, and Hisato Sasahara. "Structural Analysis of a Universal Holding Mechanism for Piston Rings." Journal of Robotics and Mechatronics 13, no. 3 (2001): 245–53. http://dx.doi.org/10.20965/jrm.2001.p0245.

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By fixing pistons of different diameters with 6 gripping nails, we clarified deformation of piston rings and stress during tightening by simulation based on the finite element method (FEM) as part of development of a universal holding mechanism to insert it into the cylinder block automatically. Nonlinear FEM was used to analyze slidingat contact parts between the ring and the gripping nail when fastening the piston ring. Final defohnation of the piston ring and stress on different parts were verified in detail. We confirmed that insertion of the piston by this method is possible.

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2

Ye, Zi Bo, Sheng Guan Qu, Yong Hu, and Guang Hong Wang. "Study on Wear Mechanism of Chromium Carbide Coating Reinforced Cast Iron Cylinder Sleeve." Applied Mechanics and Materials 273 (January 2013): 124–28. http://dx.doi.org/10.4028/www.scientific.net/amm.273.124.

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In tribological system of internal combustion engine, cylinders and pistons were in high temperature, pressure and load working status. An SRV IV wear tester was used to measure dynamic coefficient of friction by simulating working condition of cylinder liner and piston ring. The worn surface topography was observed through scanning electron microscope and metallography. The results show that loads had little effect on the friction coefficient under oil lubrication. Cylinder with the high-chromium carburizing ring in pairs displayed wear in the form of plastic deformation, while cylinder with

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3

Matveev, Yuriy Ivanovich, Sergey Yur'evich Kuritsyn, Sergey Sergeevich Kazakov, and Rafik Rafailevich Zhamalov. "Bench tests of the new sealing of parts of the cylinder piston group of the marine internal combustion engine." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2024, no. 2 (2024): 48–56. http://dx.doi.org/10.24143/2073-1574-2024-2-48-56.

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The engine consists of a large number of parts, each of which is responsible for a specific function of its efficient operation. The reliability of a marine diesel engine is largely determined by the resource of its individual components and parts. Therefore, in order to increase the engine life, it is necessary to allocate the most responsible parts in it, which are subject to greater wear and find solutions to increase their durability. Such details include piston rings, which affect not only the technical and economic performance of the engine, but also its reliability and environmental per

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4

Kuritsyn, Sergey Y., and Yuri I. Matveev. "The complete set of pistons of marine diesel engines with a new o-ring seal during repair." Russian Journal of Water Transport, no. 82 (March 13, 2025): 76–86. https://doi.org/10.37890/jwt.vi82.559.

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The vast majority of high-speed engines are equipped with aluminum alloy pistons, and since these engines occupy a leading position in shipbuilding, the issue of restoring the piston as the most stressed and wear-prone part is relevant today. Aluminum alloy has a large number of positive qualities that determine their use for high-speed engines. These include low weight, which is necessary to reduce inertial loads, high thermal conductivity, due to which the piston does not overheat during normal operation, and a low coefficient of friction. But for all the advantages of an aluminum alloy, it

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5

Zavos, Anastasios, and Pantelis George Nikolakopoulos. "Waviness and straightness of cylinder and textured piston ring tribo pair." International Journal of Structural Integrity 6, no. 2 (2015): 300–324. http://dx.doi.org/10.1108/ijsi-07-2013-0014.

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Purpose – The purpose of this paper is to review and to provide a dipper understanding of what happens to piston rings and cylinder surfaces when manufacturing errors depicted, such as waviness and straightness. The mechanism of friction and the piston ring structural integrity, due to the surface irregularities, are analyzed either for smooth ring surface or for artificial textured, while piston ring floats into the piston groove or not. Design/methodology/approach – In this work two tribological models of a piston ring- cylinder package are presented using CFD analysis. Initially, the piston

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6

Chen, Tingkun, Lin Wang, Jin Xu, et al. "Effect of Groove Texture on Deformation and Sealing Performance of Engine Piston Ring." Machines 10, no. 11 (2022): 1020. http://dx.doi.org/10.3390/machines10111020.

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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. The experimental design method was used to fabricate the test plan according to the groove width, depth, and spacing. By using the thermal–structural coupling analysis method, the finite element analysis of the standard piston ring and the textured piston ring was carried out to simulate the deformation state of the cylinder liner system of the piston ring group during the working stroke. The piston rings with different pa

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7

Sukmara, Sony. "ANALISIS KARAKTERISTIK RING PISTON ORIGINAL DAN RING PISTON LOKAL PADA MOBIL DAIHATSU S-38." Jurnal Konversi Energi dan Manufaktur 2, no. 1 (2015): 29–35. http://dx.doi.org/10.21009/jkem.2.1.3.

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Ring piston adalah komponen yang sangat penting yang merupakan bagian dari suatu sistem motor bakar torak.Ring piston selain berguna untuk merapatkan kedudukan piston dengan dinding silinder sehingga proses kompresidapat berlangsung dengan baik, juga untuk mencegah terjadinya kebocoran-kebocoran kompresi. Ring piston harusterbuat dari material yang sesuai dan mempunyai sifat-sifat yang memenuhi kriteria diantaranya harus mempunyaidaya pegas, tahan panas, tahan aus dan tidak mudah terdeformasi.Dalam penelitian ini dibandingkan dua buah ring piston, yaitu ring piston original dan ring piston lok

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8

WAKURI, Yutaro, Tatsumi KITAHARA, Toshiro HAMATAKE, Mitsuhiro SOEJIMA, and Osami OONO. "Characteristics of Piston Ring Friction. Influences of Piston Ring Specifications." Transactions of the Japan Society of Mechanical Engineers Series C 62, no. 599 (1996): 2811–17. http://dx.doi.org/10.1299/kikaic.62.2811.

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9

Matveev, Yuriy Ivanovich, Mikhail Yurievich Khramov, Vladimir Viktorovich Kolyvanov, and Sergey Yur'evich Kuritsyn. "Improving efficiency of seals of parts of cylinder piston group of marine diesel engines." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2023, no. 3 (2023): 49–55. http://dx.doi.org/10.24143/2073-1574-2023-3-49-55.

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During the engine operation, the piston rings wear out and the grooves under the piston rings are destroyed, as a result of which there is a decrease in the sealing of the combustion chamber. This problem has been usually solved by replacing the old, spent piston and rings with new ones. There is considered a method of extending the life of the cylinder piston group. The proposed method consists in changing the composition and design of the upper piston ring, which is primarily responsible for sealing the combustion chamber. It is proposed to bore the groove of the upper piston ring, until all

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10

Sun, Jun, Xiao Zhang, Jianxiong Zhu, et al. "On the lubrication characteristics of piston ring under different engine operation conditions." Industrial Lubrication and Tribology 72, no. 1 (2019): 101–8. http://dx.doi.org/10.1108/ilt-06-2019-0220.

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Purpose Currently, lubrication analysis of piston ring is generally done under engine rated operating condition. However, the engine (such as the vehicle engine) does not always operate in rated operating condition, and its operating condition changes frequently in actual use. In addition, the lubrication status of piston ring is generally assumed as the flooded lubrication or a certain form of poor lubrication in most of the lubrication analysis. Design/methodology/approach In this paper, based on the equations about the flow rate of lubricating oil and the variation of control volume, the fl

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11

Ye, Zi Bo, Sheng Guan Qu, Xing Feng Fu, Yong Hu, Guang Hong Wang, and Zhong Hui Luo. "Friction Process Analysis and Ring Structure Improvement of Piston Rings in MTU396 Diesel." Applied Mechanics and Materials 329 (June 2013): 234–38. http://dx.doi.org/10.4028/www.scientific.net/amm.329.234.

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Based on combustion pressure, the dynamic model was established by using AVL Excite Piston and Rings. Relative axial position and wear loss of rectangular piston ring in a work circulation were analyzed. Based on the shape of the rectangular ring outer side after abrasion, the piston ring cross sections were designed to barrel and tapered shape. Results indicate that improved gas rings are suffered substantially decreased friction. The friction of the first gas ring is less than 100N, and the second ring is even less than 20N. At the upper dead point in the compression stroke, the oil film thi

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12

NAKASHIMA, Kohei, and Yosuke UCHIYAMA. "Experimental development of apparatus to measure piston assembly friction in an eco-mileage vehicle engine." Combustion Engines 177, no. 2 (2019): 55–59. http://dx.doi.org/10.19206/ce-2019-210.

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Apparatus was developed to measure piston assembly friction with a floating cylinder liner against crank angle, using components of an eco-mileage vehicle engine as much as possible. This apparatus was then used to investigate the effect of different sets of piston rings on piston assembly friction in an eco-mileage vehicle engine. Results indicated that, compared to the piston with all three rings (a top ring, a second ring and an oil ring), the piston with two rings (a top ring and an oil ring) reduced piston assembly friction at all engine temperatures and engine speeds. Another configurati

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13

Wei, Hai Jun. "Study on the Tribology of the Cylinder and Piston Ring of the Vehicle Diesel with Surface Roughness and Lubrication Oil." Advanced Materials Research 268-270 (July 2011): 322–25. http://dx.doi.org/10.4028/www.scientific.net/amr.268-270.322.

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The friction and abrasion of the cylinder and piston ring of the vehicle diesel has been carried on experimentation research using oil analysis technology in order to improve the diesel running-in quality and shorten the diesel running-in time, and analyze the defferent lubrication oil and surface roughness of the diesel piston ring in order to find a way to reducing abrasion of them. The experiment proves that the machining precision of the piston ring will affect evidently the oil film formed of between the piston ring and cylinder. The critical load forming oil film is inverse ratio Ra of t

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14

Gortyshov, Yu F., A. M. Druzhinin, V. M. Gureev, I. F. Gumerov, and V. A. Stroganov. "The piston ring or the piston seal?" Russian Engineering Research 30, no. 4 (2010): 385–87. http://dx.doi.org/10.3103/s1068798x10040155.

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15

P., Venkateswara Babu, Ismail Syed, and Satish Ben Beera. "Influence of positive texturing on friction and wear properties of piston ring-cylinder liner tribo pair under lubricated conditions." Industrial Lubrication and Tribology 71, no. 4 (2019): 515–24. http://dx.doi.org/10.1108/ilt-07-2017-0203.

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Purpose In an internal combustion engine, piston ring-cylinder liner tribo pair is one among the most critical rubbing pairs. Most of the energy produced by an internal combustion engine is dissipated as frictional losses of which major portion is contributed by the piston ring-cylinder liner tribo pair. Hence, proper design of tribological parameters of piston ring-cylinder liner pair is essential and can effectively reduce the friction and wear, thereby improving the tribological performance of the engine. This paper aims to use surface texturing, an effective and feasible method, to improve

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16

Delprete, Cristiana, Abbas Razavykia, and Paolo Baldissera. "Detailed analysis of piston secondary motion and tribological performance." International Journal of Engine Research 21, no. 9 (2019): 1647–61. http://dx.doi.org/10.1177/1468087419833883.

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This article presents a detailed analytical model to evaluate piston skirt tribology under hydrodynamic lubrication. The contribution of the piston ring pack lubrication has been taken into account to study piston secondary motion and tribological performance. A system of nonlinear equations comprising Reynolds equation and force equilibrium is solved to calculate piston ring pack friction force and its moment about wrist pin axis. Instantaneous minimum oil film thickness at piston ring/liner interface has been estimated considering different boundary conditions: full Sommerfeld, oil separatio

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17

Hu, Wenming. "A visual inspection system for detecting end gap and light leakage of the piston ring." Journal of Computing and Electronic Information Management 10, no. 3 (2023): 158–61. http://dx.doi.org/10.54097/jceim.v10i3.8770.

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A fully automatic visual inspection system for piston ring was proposed in this study. This system can automatically feed the piston ring, and then detect the end gap and the light leakage of the piston ring. Moreover, the piston ring can be classified after detection and the detection data can be saved for further analysis. To achieve this objective, the detection equipment was established for detecting the end gap and the light leakage, and corresponding software was developed based on Labview. The experiment was carried out and the detection performance of the system was evaluated. The resu

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18

Hu, Yuanzhong, Herbert S. Cheng, Takayuki Arai, Yoichi Kobayashi, and Shunichi Aoyama. "Numerical Simulation of Piston Ring in Mixed Lubrication—A Nonaxisymmetrical Analysis." Journal of Tribology 116, no. 3 (1994): 470–78. http://dx.doi.org/10.1115/1.2928867.

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The assumption of axisymmetry, employed by most of studies on piston ring lubrication, probably gives a too idealistic model for the real situation. A theoretical model for a nonaxisymmetrical analysis of piston ring lubrication has been established in the present study. When a piston ring with an arbitrary free shape is fitted into the cylinder bore, the determination of ring deflection and contact load has been modeled mathematically as a Linear Complementary Problem (LCP). By combining LCP solution with lubrication analysis, the film thickness and contact load distribution over the circumfe

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19

Dellis, Polychronis. "The effect of friction force and cavitation on wear in piston-cylinder assemblies." MATEC Web of Conferences 188 (2018): 04012. http://dx.doi.org/10.1051/matecconf/201818804012.

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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 the lubricant transport process. During the transport process the lubricant enters the combustion chamber. The combustion products of consumed oil might contribute to exhaust gas emissions and with emission legislation becoming more stringent, it is important that oil consumption is reduced to the lowest level possible. The role of the piston-ri

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20

Tang, Dong, Hui Min Lv, Min Hu, and Shu De Yao. "Numerical Simulation for Effects of Running Surface Profile Structure in Piston Ring Group on Blow-By and LOC." Advanced Materials Research 683 (April 2013): 913–16. http://dx.doi.org/10.4028/www.scientific.net/amr.683.913.

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The oil film distribution of piston ring lubrication is determined by the running surface profile of piston ring, which has significant effect on lube-oil- consumption (LOC) and blow-by of diesel engine. Based on the Excite Piston&Ring software in AVL Company, the effect of changing the running surface lines of piston ring group on LOC and blow-by of a automotive diesel engine has been analysed, which contributes to the design of piston rings. The results show that the performance of blow-by and LOC in scheme two is better than that in scheme one.

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21

Wang, Q., Y. Cao, R. Wang, F. Mignano, and G. Chen. "Studies of a Heat-Pipe Cooled Piston Crown." Journal of Engineering for Gas Turbines and Power 122, no. 1 (1999): 99–105. http://dx.doi.org/10.1115/1.483181.

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Designing pistons with effective cooling is crucial to preventing piston failure and improving engine service life. A piston design that incorporates the heat-pipe cooling technology may provide a new approach that could improve the thermal-tribological performance of heavy-duty diesel engine pistons. A simplified piston crown with an annular reciprocating heat pipe is constructed to demonstrate this concept. The piston crown is experimentally tested on a specially designed reciprocating apparatus. Experimental data indicate that the annular heat-pipe cooling can greatly assist in reducing the

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22

Tian, Weijun, Jinhua Zhang, Kuiyue Zhou, et al. "Bionic Design and Optimization of the Wear-Resistant Structure of Piston Rings in Internal Combustion Engines." Lubricants 11, no. 11 (2023): 484. http://dx.doi.org/10.3390/lubricants11110484.

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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. Among the engine’s crucial components, the piston ring plays a pivotal role but is particularly susceptible to wear. Therefore, extensive research has been devoted to investigating the wear of piston rings, a critical sealing component within internal combustion engines. To address the high cost of existing coating methods, which hinders widespread app

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23

Li, Cheng-Di, Bin Li, Mei Jin, Yan Shen, and Jiu-Jun Xu. "Wear behavior of the aluminum-silicon alloy cylinder liner wear against Chrom–Keramik–Schicht piston ring." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 2 (2017): 136–42. http://dx.doi.org/10.1177/1350650117708138.

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The aluminum–silicon alloy cylinder liner shows great potential for engine cylinder liner applications as its excellent castability, light weight, and good thermal conductivity. In order to improve the capability of the whole friction system further, the friction performance of the piston rings wear against cylinder liner should be discussed in details. In this paper, the wear behavior of the aluminum–silicon alloy cylinder liner wear against Chrom–Keramik–Schicht (CKS) piston ring was carried out by the contraposition reciprocating test rig under lubrication. The surface morphology was charac

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ALLEN, J. J., and B. AUVITY. "Interaction of a vortex ring with a piston vortex." Journal of Fluid Mechanics 465 (August 25, 2002): 353–78. http://dx.doi.org/10.1017/s0022112002001118.

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Recent studies on vortex ring generation, e.g. Rosenfeld et al. (1998), have highlighted the subtle effect of generation geometry on the final properties of rings. Experimental generation of vortex rings often involves moving a piston through a tube, resulting in a vortex ring being generated at the tube exit. A generation geometry that has been cited as a standard consists of the tube exit mounted flush with a wall, with the piston stroke ending at the tube exit, Glezer (1988). We employ this geometry to investigate the effect of the vortex that forms in front of the advancing piston (piston

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Tee, J. W., S. H. Hamdan, and W. W. F. Chong. "Predictive tool for frictional performance of piston ring-pack/liner conjunction." Journal of Mechanical Engineering and Sciences 13, no. 3 (2019): 5513–27. http://dx.doi.org/10.15282/jmes.13.3.2019.19.0445.

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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. Hence, this study investigates the tribological impact of different piston ring profiles towards engine in-cylinder friction. Mathematical models are derived from Reynolds equation by using Reynolds’ boundary conditions to generate the contact pressure distribution along the complete piston ring-pack/liner conjunction. The predicted minimum film thickness is then used to predict the friction generat

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Zhang, W., E. Becker, Y. Wang, Q. Zou, B. Zhou, and G. C. Barber. "Investigation of Scuffing Resistance of Piston Rings Run against Piston Ring Grooves." Tribology Transactions 51, no. 5 (2008): 621–26. http://dx.doi.org/10.1080/10402000802044316.

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Wang, Gui Tang, and Mei Ling Yu. "Pistol Ring Gap Inspection under Free State Based on Machine Vision." Applied Mechanics and Materials 328 (June 2013): 198–202. http://dx.doi.org/10.4028/www.scientific.net/amm.328.198.

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The traditional way is to put the ring into the standard ring gauge to inspect, but the process of this kind of method is complex, high cost and slow. The study has put forward a detection method based on machine vision technology for pistol ring under free state as the existing defects in inspecting ring gap. Pistol ring is imaged under free conditions. Edge detection technologies, sub-pixel and Gaussian filter, have been effectively adopted to extract the contour of pistol ring. Then perform curve fitting in section to work out the gap length of each segment when pistol is circle. From the e

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Ma, M.-T., I. Sherrington, and E. H. Smith. "Analysis of lubrication and friction for a complete piston-ring pack with an improved oil availability model: Part 1: Circumferentially uniform film." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 211, no. 1 (1997): 1–15. http://dx.doi.org/10.1243/1350650971542273.

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The study of the tribological performance of piston rings plays an important role in piston assembly design. In this study, a comprehensive analysis of piston-ring pack lubrication has been developed. The model employs a flow-continuity algorithm and considers relative ring locations in the piston-ring pack as well as oil accumulation in front of the ring in determining the oil availability. The computer model is able to predict the effect that bore distortion and ring conformability have on piston-ring performance. (This influence is discussed in Part 2 of the paper). In this part of the pape

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Zhu, Feng, Jiujun Xu, Xiaoguang Han, Yan Shen, and Mei Jin. "Tribological performance of three surface-modified piston rings matched with chromium-plated cylinder liner." Industrial Lubrication and Tribology 69, no. 2 (2017): 276–81. http://dx.doi.org/10.1108/ilt-11-2015-0164.

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Purpose The paper aims to investigate the friction and wear properties of three surface-modified piston rings matched with a chromium-plated cylinder liner. Design/methodology/approach Samples were taken from the chromium-plated cylinder liner, Cr-Al2O3 ring, CrN ring and Mo ring. Tribo-tests were conducted on a reciprocating sliding tribometer under fully formulated engine oils. Friction coefficients and wear depths of three friction pairs were tested. Surface morphologies of cylinder liners and piston rings before and after test were analyzed. Findings Experimental results show that in the C

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Ngatmin, Ngatmin, Yulius Oscar, Gunawan Budi Santoso, Juwarlan Juwarlan, and Khaeroman Khaeroman. "Analisa Kegagalan Ring Piston Mesin Diesel Type YMD MAN B&W(5S35MC-C9-2) di KM. Spil Hasya." Ocean Engineering : Jurnal Ilmu Teknik dan Teknologi Maritim 2, no. 4 (2023): 196–207. https://doi.org/10.58192/ocean.v2i4.1903.

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The research method used was a qualitative experiment, starting with taking broken piston rings No. 2 and 3, cutting the piston rings and testing them with hardness tests and composition tests carried out at the Indonesian State Maritime Polytechnic and Undip Central Java Integrated Lab. From the results of this research, it can be concluded that the used broken ring number 3 has the highest hardness of 140.26 HB and the used ring number 2 is 131.50 HB, so it can be concluded that the piston ring that has been used and exposed to high heat causes an increase in hardness and causes it to break.

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ZEBBAR, Djallel, Kouider MOSTEFA, Sahraoui KHERRIS, and Guillaume HOUZEAUX. "THE HIGHLIGHTING OF AN INTERNAL COMBUSTION ENGINE PISTON RING RADIAL OSCILLATIONS." Recueil de mécanique 1, no. 1 (2016): 7–16. https://doi.org/10.5281/zenodo.1134917.

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This paper deals with the definition of the lube-oil film thickness in the piston ring cylinder liner junction of an internal combustion engine. At first, a mathematical model for the estimation of the film thickness is established. It is used to point out the oscillating motion of the piston ring normal to the cylinder wall. For the first time, has been highlighted and analytically evaluated the oscillating behavior of the piston ring in its housing in the radial direction. Furthermore, it is demonstrated that the radial oscillations frequency is a function of piston ring

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Overgaard, H., P. Klit, and A. Vølund. "Investigation of different piston ring curvatures on lubricant transport along cylinder liner in large two-stroke marine diesel engines." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 1 (2017): 85–93. http://dx.doi.org/10.1177/1350650117744100.

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A theoretical investigation of the hydrodynamic lubrication of the top compression piston ring in a large two-stroke marine diesel engine is presented. The groove mounted piston ring is driven by the reciprocal motion of the piston. The ring shape follows a circular geometry and the effect of changes in radii is analysed. A numerical model based on the finite difference method in 1D has been developed for solving Reynolds equation in combination with the load equilibrium equation together with flow continuity between the piston ring surface and liner for analysis of the lubricant transport. Th

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Yang, Dong Ya, Huan Xie, and Jun Gong. "The Analysis of the Influencing Factors about Friction and Wear Characteristics of the Piston Ring in Stirling Engine." Advanced Materials Research 690-693 (May 2013): 2003–7. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.2003.

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The problem about friction and wear characteristics of piston ring which is directly related to the sealing properties of stirling engine was analyzed. An improved seal structure of piston ring was taken as the research object, the influence of the temperature and the pressure of refrigerant were considered when the friction and wear characteristics of piston ring in stirling engine was studied. The calculation formula about radial weal amount of the piston ring with the change of the temperature and the gas pressure was derived by using the peeling wear theory. Then, the experiment was taken

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Knoll, G., H. Peeken, R. Lechtape-Gru¨ter, and J. Lang. "Computer-Aided Simulation of Piston and Piston Ring Dynamics." Journal of Engineering for Gas Turbines and Power 118, no. 4 (1996): 880–86. http://dx.doi.org/10.1115/1.2817009.

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A numerical computer simulation program was developed, aiding in finding optimum design parameters in the multibody-system piston, piston-rings, and cylinder with respect to optimum sealing, minimal friction, and minimum noise stimulation (impact impulse). In the simulation of piston secondary movement and piston ring motion, forces arising from the combustion process, subsonic/supersonic gas flow between the combustion chamber and the crank case, inertial forces and forces resulting from the hydrodynamic lubrication between cylinder liner and piston shaft and piston rings and between piston r

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Yang, Congnan, Haijun Xu, Xiaojun Xu, et al. "Analysis of circumferential oil film thickness for piston ring in twin-rotor piston engine under differential velocity motion of combined annular cylinder." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 236, no. 7 (2022): 3772–89. http://dx.doi.org/10.1177/09544062211042921.

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In this paper, a novel type of twin-rotor piston engine (TRPE) is proposed, and the circumferential oil film thickness for the piston ring in TRPE is analysed. Different from the integrated cylinder of a typical engine, the combined annular cylinder (CAC) of TRPE has unique structural composition and differential velocity motion characteristic, making the tribological performance more complicated. The main purpose of this paper is to reveal and explain the special tribological performance of TRPE, which has never been studied. Firstly, the special structural composition of CAC is introduced an

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Piątkowski, Jarosław, Stanisław Roskosz, Wiktoria Sapota, and Sebastian Stach. "The Influence of Iron Content on the Porosity of AlSi9 Alloy Intended for Alfining Piston Ring Inserts." Materials 17, no. 21 (2024): 5181. http://dx.doi.org/10.3390/ma17215181.

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Due to its tendency to increase the power of engines, improving their reliability and operational efficiency, the compression ring in combustion engine pistons is embedded in a cast iron insert, which is subjected to the process of “alfining”. This involves covering the insert with an Al–Si alloy, which increases the iron content. Research has shown that the β-Al5FeSi phases crystallizing in the area of the insert–piston connection are the main cause of an unstable connection between the silumin casting of the piston and the ring insert. Their unfavourable lamellar morphology and large dimensi

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Marchenko, A. P., O. U. Linkov, V. V. Pylyov, and S. V. Lykov. "ESTIMATION OF THE THERMALLY STRESSED STATE OF INTERNAL COMBUSTION ENGINE PISTONS, TAKING INTO ACCOUNT THE CREEP THRESHOLD OF THEIR SIDE SURFACE." Internal Combustion Engines, no. 2 (September 15, 2023): 3–13. http://dx.doi.org/10.20998/0419-8719.2023.2.01.

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When creating new engine designs, they are subject to ever more stringent requirements for specific power and reliability indicators while ensuring a combination of other performance indicators. The use of new design solutions or the transition to a different piston material can significantly increase the possible level of engine power. This requires a mandatory analysis of the thermal stress state of the structure. It is this analysis that can show whether one or another competing solution will be effective. This study shows the possible effectiveness of certain constructive measures. The die

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38

Mukmin, Muhammad Amirul. "ANALISIS KEANDALAN DAN PENENTUAN PERSEDIAAN OPTIMAL SUKU CADANG COMPRESOR TWO STAGE FOR VESSEL IQF DENGAN METODE ABC DAN RELIABILITY DI PT.KELOLA MINA LAUT." MATRIK (Jurnal Manajemen dan Teknik) 17, no. 1 (2017): 38. http://dx.doi.org/10.30587/matrik.v17i1.161.

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The Production process PT. Kelola Mina Laut has often had obstacles of not working operation of production systems ( production stop because of the problem at bottleneck or breakdown ). This happens because the breakage production machine or waiting for engine unit/component ordered and purchased to replace the faulty component. Especially on machine compressor two-stage no 6 for vessel IQF 4 So it required that the optimal inventory control of spare parts. The method used for the determination this component is the ABC classification method and the method Reliability. ABC obtained by the meth

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Sumardiyanto, Didit. "PENGARUH KEAUSAN RING PISTON TERHADAP KINERJA MESIN." JURNAL KAJIAN TEKNIK MESIN 2, no. 1 (2017): 42–51. http://dx.doi.org/10.52447/jktm.v2i1.573.

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Penelitianinidilakukanuntukmengetahuipengaruhkeausan ring piston padamesin diesel B&W Type : 6S50MC, terhadapkinerjamesin.Penelitian dilakukan dengan mencatat data-data indicator kinerja mesin sebelum dilakukan penggantian dan setelah dilakukan penggantian ring piston.Hasil yang diperoleh Pada kondisi ring piston belum dilakukan penggantian Daya Efektif sebesar 11.959 hp. Efisiensi thermal Efektif 36.96% dan Konsumsi Bahan Bakar Spesifik sebesar 171 g/hp.h , Sedangkan pada kondisi ring piston sesuai dengan standar, mesin menunjukkan kinerja, Daya Efektif 12.899 hp, Efisiensi Thermal Efekti

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Febriyanti, Eka, and Amin Suhadi. "ANALISIS KEGAGALAN FIRE RING PENYEBAB KERUSAKAN PISTON MESIN UNIT KENDARAAN BERMOTOR." Majalah Ilmiah Pengkajian Industri 10, no. 2 (2016): 99–106. http://dx.doi.org/10.29122/mipi.v10i2.1821.

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Fire ring atau oil scraper ring merupakan salah satu komponen penting dari mesin yang berada pada chamber pembakar dan berlokasi di atas piston serta berfungsi untuk membantu dalam kontrol oli sehingga pembakaran berlebih dapat diminimalisir. Hal tersebut disebabkan karena fire ring dapat membiarkan oli untuk lewat sehingga dapat melumasi piston dan cylinder wall. Oleh karena itu, peranan dari fire ring sangat mempengaruhi kinerja dari mesin diesel suatu kendaraan. Apabila fire ring tidak terinstall dengan baik maka menyebabkan fire ring akan gagal setiap saat, hal ini menyebkan mesin dapat ru

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ADAMKIEWICZ, Adam, and Jan DRZEWIENIECKI. "OPERATIONAL EVALUATION OF PISTON-RINGS-CYLINDER LINER ASSEMBLY WEAR IN HIGH POWER MARINE DIESEL ENGINES." Tribologia 271, no. 1 (2018): 5–15. http://dx.doi.org/10.5604/01.3001.0010.6357.

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This paper presents an operational evaluation of piston-piston rings-cylinder liner (PRC) assembly wear in marine diesel engines of high power. It is based on visual inspection through cylinder liner scavenge ports. Clearance measurements of piston rings in piston grooves and piston ring gap measurements were used to evaluate the extent of wear of the PRC assembly. Moreover, it is shown that piston ring gap measurements can be used as a reference parameter in wear trend analysis to predict the length of time periods between overhauls (TBO). Furthermore, it has been shown that controlling the w

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Ahmed Ali, Mohamed Kamal, Hou Xianjun, Richard Fiifi Turkson, and Muhammad Ezzat. "An analytical study of tribological parameters between piston ring and cylinder liner in internal combustion engines." Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics 230, no. 4 (2016): 329–49. http://dx.doi.org/10.1177/1464419315605922.

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This paper presents a model to study the effect of piston ring dynamics on basic tribological parameters that affect the performance of internal combustion engines by using dynamics analysis software (AVL Excite Designer). The paramount tribological parameters include friction force, frictional power losses, and oil film thickness of piston ring assembly. The piston and rings assembly is one of the highest mechanically loaded components in engines. Relevant literature reports that the piston ring assembly accounts for 40% to 50% of the frictional losses, making it imperative for the piston rin

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Suyuti, Musriady, Arifuddin Danduru, and Darwis. "Analisis Patahnya Ring Piston Auxiliary Engine di Kapal MV. Fatime." JURNAL VENUS 13, no. 1 (2025): 61–74. https://doi.org/10.48192/vns.v13i1.748.

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Penelitian ini bertujuan untuk mengidentifikasi penyebab kerusakan ring piston pada mesin bantu kapal MV. FATIME serta langkah-langkah pencegahan yang dilakukan. Dalam era kemajuan teknologi yang pesat dan persaingan bisnis yang ketat, transportasi laut menjadi pilihan utama untuk mendukung kelancaran operasional. Mesin diesel kapal, terutama bagian ring piston, memerlukan perawatan berkala guna menjaga kompresi ruang bakar dan mencegah kebocoran gas pembakaran. Metode penelitian yang digunakan adalah kualitatif dengan pendekatan deskriptif, meliputi observasi, wawancara dengan masinis dan kru

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Guo, Yi Bin, Xi Qun Lu, De Quan Zou, Tao He, Wan You Li, and Zi Jun Li. "Analysis of Piston Ring Lubrication with Different Lubricant Supply." Advanced Materials Research 199-200 (February 2011): 700–706. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.700.

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In this paper fully flooded and starved lubrication models considering surface roughness are developed for the piston ring and cylinder bore lubrication. The effect of oil available in the inlet region of a top ring is studied by comparing predicted oil film thickness, asperity contact friction and power loss under different oil supply conditions. The simulation results show that the proper oil supply is important in controlling the piston ring frictional power loss. The influences of lubricant viscosity and composite roughness on frictional power loss of piston ring are also discussed.

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Sun, Meng, Liqun Lu, Xin Bai, Huiting Ni, and Leilei Shi. "The Time-Dependent Reliability Analysis of Brake Piston Special-Shaped Seal of the Caliper Disc Brake." Journal of Sensors 2022 (May 23, 2022): 1–9. http://dx.doi.org/10.1155/2022/2820010.

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To solve the brake caliper disc brake piston sealing ring in the high temperature, pressure, and changeful, complex working environments, such as vibration failure cause brake short service life, low reliability, in the original brake piston O seal ring and cross section, the research, based on the standard of sealing ring, such as special-shaped seal structure is put forward in order to improve the reliability of the caliper disc brake piston sealing performance. Based on the basic concept of time-varying reliability and the theoretical basis of stress-strength interference model, the time-va

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46

Overgaard, H., P. Klit, and A. Vølund. "Lubricant transport across the piston ring with flat and triangular lubrication injection profiles on the liner in large two-stroke marine diesel engines." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 232, no. 4 (2017): 380–90. http://dx.doi.org/10.1177/1350650117715151.

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A theoretical investigation of the lubricant transport across the top compression piston ring in a large two-stroke marine diesel engine is presented. A numerical model for solving Reynolds equation between the piston ring and cylinder liner based on the finite difference method in one dimension has been made. The model includes force equilibrium of the piston ring, perturbation of Reynolds equation, and transient mass conservation. The model represents a new method of achieving mass conservation across the piston ring and between different time-dependent positions. For analyzing the lubricant

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Burnett, P. J., B. Bull, and R. J. Wetton. "Characterization of the Ring Pack Lubricant and its Environment." Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology 209, no. 2 (1995): 109–18. http://dx.doi.org/10.1243/pime_proc_1995_209_413_02.

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The performance characteristics of the piston ring-liner assembly and the lubricant within it are critical for the operation of modern internal combustion engines. The ring pack can directly affect engine friction, oil consumption and oil degradation, which in turn can impact upon fuel economy, emissions and engine wear. The operation of this system is complex and no single technique is capable of fully characterizing the processes occurring. This paper outlines the range of both experimental and theoretical methods that are being applied to the study of this system and the lubricant within it

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48

Rozario, Arthur, Christoph Baumann, and Raj Shah. "The Influence of a Piston Ring Coating on the Wear and Friction Generated during Linear Oscillation." Lubricants 7, no. 1 (2019): 8. http://dx.doi.org/10.3390/lubricants7010008.

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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 demand of higher performance vehicles, which coincidently further loads the piston ring. As of yet, there are plenty of studies that already study the piston ring’s contact with the cylinder liner. However, this study focuses on a cost-effective Schwing, Reib, Verschleiss (SRV) instrumentation that allows to pre-screen lubricants, additives, materi

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Novotný, Pavel, Peter Raffai, Jozef Dlugoš, Ondřej Maršálek, and Jiří Knotek. "Role Of Computational Simulations In The Design Of Piston Rings." Journal of Middle European Construction and Design of Cars 13, no. 1 (2015): 1–6. http://dx.doi.org/10.1515/mecdc-2015-0001.

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Abstract The paper presents computational approaches using modern strategies for a dynamic piston ring solution as a fluid structural problem. Computational model outputs can be used to understand design parameter influences on defined results of a primarily integral character. Piston ring dynamics incorporates mixed lubrication conditions, the influence of surface roughness on oil film lubrication, the influence of ring movement on gas dynamics, oil film formulation on a cylinder liner and other significant influences. The solution results are presented for several parameters of SI engine pis

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Orozco Lozano, Wilman, Marlen Del Socorro Fonseca-Vigoya, and Jhon Pabón-León. "Study of the Kinematics and Dynamics of the Ring Pack of a Diesel Engine by Means of the Construction of CFD Model in Conjunction with Mathematical Models." Lubricants 9, no. 12 (2021): 116. http://dx.doi.org/10.3390/lubricants9120116.

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The present research aims to analyze the kinematic and dynamic behavior of the piston ring package. The development of the research was carried out through the development of numerical simulation by means of CFD. The analysis involves the three piston rings for the development of simulations that are closer to the real conditions of the engine since most of the investigations tend to focus on the study of the compression ring only. The simulation was reinforced by the incorporation of mathematical models, which allow determining the piston kinematics, the lubrication properties as a function o

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