Computational assessment of the effects of pre-chamber and piston geometries on the combustion characteristics of an optical pre-chamber engine
Pre-chamber combustion (PCC) has the potential to extend the lean-burn limit in spark-
ignition engines, which can promote engine efficiency and relieve the concern of emissions …
ignition engines, which can promote engine efficiency and relieve the concern of emissions …
Optical diagnostics on the pre-chamber jet and main chamber ignition in the active pre-chamber combustion (PCC)
We studied the relationship between pre-chamber jet and main chamber ignition in the pre-
chamber combustion (PCC) of an optical engine, fueled with methane and equipped with an …
chamber combustion (PCC) of an optical engine, fueled with methane and equipped with an …
Numerical study of the effects of excess air ratio on passive pre-chamber jet performance and ignition mechanism
Pre-chamber (PC) ignition is a promising lean-burn technology to improve the efficiency of
spark ignition (SI) engines while achieving ultra-low NOx emissions. However, the …
spark ignition (SI) engines while achieving ultra-low NOx emissions. However, the …
Study on the effects of narrow-throat pre-chamber geometry on the pre-chamber jet velocity using dual formaldehyde PLIF imaging
The effects of narrow-throat pre-chamber geometry on the main chamber combustion were
investigated on a heavy-duty optical engine fueled with methane. Simultaneous dual …
investigated on a heavy-duty optical engine fueled with methane. Simultaneous dual …
Optical study on multi-time ignition mixed-mode combustion with gasoline and PODE
In this study, multi-time ignition mixed mode combustion (MIMC) strategy is proposed to
improve the dual fuel combustion, based on observation of the ignition and flame …
improve the dual fuel combustion, based on observation of the ignition and flame …
Impact of spray-wall interaction on the in-cylinder spatial unburned hydrocarbon distribution of a gasoline partially premixed combustion engine
Partially premixed combustion (PPC) often adopts the early fuel-injection strategy that could
result in spray-wall interaction involved with piston top-land crevice. This interaction may …
result in spray-wall interaction involved with piston top-land crevice. This interaction may …
A comparative study of isobaric combustion and conventional diesel combustion in both metal and optical engines
Isobaric combustion is more efficient than isochoric combustion when the peak cylinder
pressure is restricted. Recently a double compression expansion engine concept using …
pressure is restricted. Recently a double compression expansion engine concept using …
High-speed imaging of main-chamber combustion of a narrow throat pre-chamber under lean conditions
Pre-chamber combustion (PCC) allows an extension on the lean limit of an internal
combustion engine (ICE). This combustion mode provides lower NOx emissions and shorter …
combustion engine (ICE). This combustion mode provides lower NOx emissions and shorter …
Simultaneous negative PLIF and OH* chemiluminescence imaging of the gas exchange and flame jet from a narrow throat pre-chamber
Pre-chamber combustion (PCC) is a promising engine combustion concept capable of
extending the lean limit at part load. The engine experiments in the literature showed that …
extending the lean limit at part load. The engine experiments in the literature showed that …
Effects of fuel trapping in piston crevice on unburned hydrocarbon emissions in early-injection compression ignition engines
Early injection strategy is employed in many advanced combustion concepts of modern
compression-ignition engines to promote the fuel-air premixing, but it could result in fuel …
compression-ignition engines to promote the fuel-air premixing, but it could result in fuel …