Results 21 to 30 of about 77,888 (282)

Mathematical Model of Piston Ring Sealing in Combustion Engine

Polish Maritime Research, 2015
This paper presents a mathematical model of piston-rings-cylinder sealing (TPC) of a combustion engine. The developed model is an itegrated model of gas flow through gaps in TPC unit, displacements and twisting motions of piston rings in ring grooves as ...
Koszałka Grzegorz, Guzik Mirosław
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Simulation of finished and thermal stocks of two-stroke engine piston modified with catalytic material [PDF]

Омский научный вестник, 2022
The calculations of the thermal and stress-strain state of the two-stroke gasoline engine (CS5200) pistons are completed. The model of an original piston and a piston modified with catalytic materials is used in the calculations.
P. V. Litvinov, V. A. Borisov, V. R. Vedruchenko, Z. N. Gryaznova, I. V. Kotsyba   +4 more
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Tribology of Wire Arc Spray Coatings under the Influence of Regenerative Fuels

Lubricants, 2018
In order to further optimize the efficiency of today’s internal combustion engines, specific coatings are used on functional surfaces to reduce internal engine friction and wear.
Roman Böttcher, Hans-Jörg Winkler, Martin Dienwiebel, Matthias Scherge   +3 more
doaj   +1 more source

Mathematical model of working processes of piston hybrid power machine of volumetric action with reduced fluctuations of gas pressure in discharge line [PDF]

Омский научный вестник: Серия "Авиационно-ракетное и энергетическое машиностроение", 2019
The paper considers a new scheme for reducing pressure fluctuations on the gas injection line in the compressor section of a hybrid power machine, highlights the main control volumes for the compressor and pump sections.
V. E. Scherba, A. V. Grigor’ev, A. V. Zanin   +2 more
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Theoretical and Numerical Study on Dynamic Response of Propellant Actuator

Actuators, 2022
In order to solve the complexity of the structure, assembly process, component contact state and working process of the propellant actuator by conventional methods, a novel design method based on theoretical and numerical analysis was proposed.
Pengzhao Xu, Ning Zhao, Kunlin Shi, Shaokang Cui, Chi Chen, Jun Liu   +5 more
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Machine Learning-Assisted Optimization of Femtosecond Laser-Induced Superhydrophobic Microstructure Processing

Photonics
Superhydrophobic surfaces have garnered significant attention due to their pivotal roles in various fields. Femtosecond laser technology provides a feasible means for inducing superhydrophobic microstructures on material surfaces.
Lifei Wang, Yucheng Gu, Xiaoqing Tian, Jun Wang, Yan Jia, Junjie Xu, Zhen Zhang, Shiying Liu, Shuo Liu   +8 more
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The influence of coolant scale deposit inside the internal combustion engine on the piston and cylinder deformations [PDF]

Transport, 2005
This paper presents the analysis of the influence of engine coolant scale deposits on the deformations in the piston – cylinder pair. The results of carried out calculations enable to make more precise evaluation of cylinder repair dimensions. The aim of
G. Garbinčius, V. Bartulis, R. Pečeliūnas, S. Pukalskas   +3 more
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Ways to increase the wear resistance of pistons of internal combustion engines (review)

Проблеми трибології, 2021
The article analyzes the materials from which the piston is made for internal combustion engines. For automobile and tractor engines, in particular, eutectoid mixtures of the AL25 type and eutectoid mixtures containing copper, nickel, magnesium and ...
T. V. Dudchak
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Three-dimensional CFD-solid mechanics analysis of the hydrogen internal combustion engine piston subjected to thermomechanical loads

International Journal of Renewable Energy Development, 2023
Fueling internal combustion engines with hydrogen is one of the most recommended alternative fuels today in order to combat the energy crisis, pollution problems, and climate change.
Maher A.R. Sadiq Al-Baghdadi, Sahib Shihab Ahmed, Nabeel Abdulhadi Ghyadh   +2 more
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In-cylinder flow field characteristics and evolution mechanism of unthrottled gasoline engine with Early Intake Valve Closure (EIVC) under different operating conditions

Case Studies in Thermal Engineering
The efficiency improvement of traditional gasoline engines is hindered by a limited compression ratio due to knock and severe pumping losses caused by fixed valve lift. Unthrottled technology has emerged as a solution relying on variable valve mechanisms.
Yuping Hu, Rui Su, Congmin Wang, Shiying Liu, Jun Wang, Qingpei Hu, Yong Cheng, Jie Tian   +7 more
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