Results 51 to 60 of about 1,875 (255)

Effects of passive pre-chamber jet ignition on combustion and emission at gasoline engine

open access: yesAdvances in Mechanical Engineering, 2021
Pre-chamber jet ignition is a promising way to improve fuel consumption of gasoline engine. A small volume passive pre-chamber was tested at a 1.5L turbocharged GDI engine.
Wei Duan   +5 more
doaj   +1 more source

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

open access: yesEnergies, 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   +4 more
doaj   +1 more source

Looking into the Prechamber of a Lean-Burn Gas Engine.

open access: yesJSME International Journal Series B, 1997
Quartz prechamber models have been installed in a constant volume test rig (CVR) for the investigation of prechamber mixing processes. Planar laser induced fluorescence of acetone has been used for a 2-dimensional visualization of flow structure and quantitative analysis of mixture formation.
Dagmar WOLFF   +3 more
openaire   +2 more sources

Possible applications of prechambers in hydrogen internal combustion engines

open access: yesCombustion Engines, 2022
The use of hydrogen as a fuel for an internal combustion engines has caused many problems for years, the most significant of which seems to be the excessive emission of nitrogen oxides and the tendency to knock combustion. In order to ensure better control of the combustion process in a internal combustion engine powered by hydrogen, it has been ...
openaire   +1 more source

Platinum‐Decorated Laser‐Induced Graphene Electrodes: Optimizing Hydrogen Evolution Reaction Catalysis through Minimal Platinum Loading

open access: yesChemNanoMat, Volume 12, Issue 1, January 2026.
Laser‐induced graphene electrodes decorated with platinum (Pt) nanoclusters are engineered via magnetron sputtering to optimize hydrogen evolution reaction (HER) catalysis. By tuning Pt deposition time, a minimal Pt loading (60 s) delivers outstanding HER performance, balancing defect density and Pt2+ anchoring for superior mass activity.
Thiago A. S. Soares   +6 more
wiley   +1 more source

Combustion engine [PDF]

open access: yes, 1977
An arrangement for an internal combustion engine is provided in which one or more of the cylinders of the engine are used for generating hydrogen rich gases from hydrocarbon fuels, which gases are then mixed with air and injected into the remaining ...
Houseman, J.
core   +1 more source

Characteristics of Hydrogen‐Enriched Fuels in Spark and Compression Ignition Engines With Dual Injection System: A Bibliometric Study of Research Evolution

open access: yesInternational Journal of Energy Research, Volume 2026, Issue 1, 2026.
Recent fuel economy and stringent emissions concerns have stimulated the use of hydrogen in internal combustion engines and to drive dual‐fuel benefits. This paper explicitly conducted a bibliometric study of scholarly articles on hydrogen enrichment of diverse fuels in compression and spark ignition (SI) engines with dual injection systems (DIS ...
Solomon O. Giwa   +2 more
wiley   +1 more source

Ignition by Hot Transient Jets in Confined Mixtures of Gaseous Fuels and Air

open access: yesJournal of Combustion, 2016
Ignition of a combustible mixture by a transient jet of hot reactive gas is important for safety of mines, prechamber ignition in IC engines, detonation initiation, and novel constant-volume combustors.
Abdullah Karimi, M. Razi Nalim
doaj   +1 more source

Lean combustion and emission performance of a gasoline direct injection engine with active pre-chamber

open access: yesAdvances in Mechanical Engineering, 2022
Pre-chamber jet ignition technology can effectively improve flame propagation speed and in-cylinder combustion rate, so it is conducive to the improvement of thermal efficiency and fuel economy.
Li Zhang   +5 more
doaj   +1 more source

The DCU laser ion source [PDF]

open access: yes, 2010
Laser ion sources are used to generate and deliver highly charged ions of various masses and energies. We present details on the design and basic parameters of the DCU laser ion source (LIS).
Boody F. P.   +4 more
core   +1 more source

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