Results 31 to 40 of about 93,971 (359)

Lean Burn Flame Kernel Characterization for Different Spark Plug Designs and Orientations in an Optical GDI Engine

Energies, 2022
Lean burn spark ignition (SI) engines represent an effective solution for improving fuel economy and reducing exhaust emissions and can be implemented both in conventional and hybrid powertrains.
Giovanni Cecere, Adrian Irimescu, Simona Silvia Merola, Luciano Rolando, Federico Millo   +4 more
doaj   +1 more source

Thermal efficiency improvement of super-lean burn spark ignition engine by stratified water insulation on piston top surface

International Journal of Engine Research, 2020
In order to improve thermal efficiency of spark ignition engine under super-lean burn conditions (excess air ratio λ ≈ 2 . 0 ), thermal stratification technique by in-cylinder water injection toward piston surface (stratified water insulated combustion ...
Tsuyoshi Nagasawa, Yuichi Okura, R. Yamada, Susumu Sato, H. Kosaka, T. Yokomori, N. Iida   +6 more
semanticscholar   +1 more source

Knock Detection in Spark Ignition Engines Base on Complementary Ensemble Empirical Mode Decomposition-Hilbert Transform

Shock and Vibration, 2016
In spark ignition engines, knock onset limits the maximum spark advance. An inaccurate identification of this limit penalises the fuel conversion efficiency.
Fengrong Bi, Teng Ma, Jian Zhang, Lin Li, Chunfang Shi   +4 more
doaj   +1 more source

A Novel Way to Enhance the Spark Plasma-Assisted Ignition for an Aero-Engine Under Low Pressure

Applied Sciences, 2018
Finding a new ignition strategy for ignition enhancement in a lean-burn combustor has always been the biggest challenge for high-altitude, long-endurance unmanned aerial vehicles (UAVs).
Shengfang Huang, Zhibo Zhang, Huimin Song, Yun Wu, Yinghong Li   +4 more
doaj   +1 more source

Effect of Engine Speed on Performance adn Emissions of a Dual Chamber Spark Ignition Engine

ASEAN Journal on Science and Technology for Development, 2017
Effect of Engine Speed on Performance adn Emissions of a Dual Chamber Spark Ignition ...
Chailulillah Rangkuti
doaj   +1 more source

Custom-Designed Pre-Chamber: Investigating the Effects on Small SI Engine in Active and Passive Modes

Energies, 2023
This work shows the results of an experimental campaign carried out in two spark ignition engines, a small optical research engine and its commercial counterpart, using a turbulent ignition system (pre-chamber) specifically designed for small engines ...
Paolo Sementa, Cinzia Tornatore, Francesco Catapano, Silvana Di Iorio, Bianca Maria Vaglieco   +4 more
doaj   +1 more source

Combustion Characteristics of Ammonia in a Modern Spark-Ignition Engine

SAE technical paper series, 2019
Ammonia is now recognized as a very serious asset in the context of the hydrogen energy economy, thanks to its non-carbon nature, competitive energy density and very mature production, storage and transport processes.
C. Lhuillier, P. Bréquigny, F. Contino, C. Rousselle   +3 more
semanticscholar   +1 more source

Analysis of Ignition Spark Parameters Generated by Modern Ignition System in SI Engine Fueled by Ammonia

Energies
This paper analyzes the influence of the number of ignition coils and spark discharge energy on the Coefficient of Variation of Indicated Mean Effective Pressure (COVIMEP) of an SI internal combustion piston engine.
Mariusz Chwist, Michał Gruca, Michał Pyrc, Borys Borowik   +3 more
doaj   +1 more source

INTERNAL COMBUSTION ENGINES [PDF]

Fiabilitate şi Durabilitate, 2016
In this work we make a study of the internal combustion engines. We make a comparison of two principal types spark-ignition engine and the compression-ignition engine.
Adriana Foanene
doaj  

Effect of Acetone-n-Butanol-Ethanol (ABE) as an Oxygenate on Combustion, Performance, and Emission Characteristics of a Spark Ignition Engine

, 2020
Ethanol is the most extensively used oxygenate for spark ignition (SI) engines. In comparison with ethanol, n-butanol exhibits a number of desirable properties for use in SI engines, which has proved to be a very promising oxygenated alternative fuel in ...
Gang Wu, D. Wu, Yuelin Li, Lei Meng
semanticscholar   +1 more source