Effects of pre-chamber flow-field on combustion stability in a spark-ignition engine using large-eddy simulations

R Novella, JM Pastor, J Gomez-Soriano, I Barbery - Physics of Fluids, 2023 - pubs.aip.org
Significant efforts are under way to develop innovative ignition systems for spark-ignition
engines used in transportation. Within this context, passive pre-chamber technology has …

Impact of Passive Pre-Chamber Nozzle Diameter on Jet Formation Patterns and Dilution Tolerance in a Constant-Volume Optical Engine

DE Lee, C Iyer, S Wooldridge, L Qiao… - SAE International Journal …, 2023 - sae.org
Pre-chamber jet ignition technologies have been garnering significant interest in the internal
combustion engine field, given their potential to deliver shorter burn durations, increased …

Visualization of ammonia-methanol solution combustion under spark and passive jet ignition mode in an optically-accessible engine

Y Zhang, J Mao, X Ma, Z Wang, TK Bera, S Shuai - Energy, 2024 - Elsevier
Ammonia-methanol (AM) solution is a promising carbon-neutral fuel for internal combustion
engines. In this paper, the in-cylinder flame imaging and measurements of AM solution …

Numerical investigation of equivalence ratio effects on Flex-Fuel mixing controlled combustion enabled by prechamber ignition

J Zeman, A Dempsey - Applied Thermal Engineering, 2024 - Elsevier
There is interest in adapting renewable and low-carbon intensity fuels to heavy-duty engines
to help displace criteria and greenhouse gas emissions associated with diesel combustion …

[HTML][HTML] Computational analysis of flame initiation, quenching, and re-ignition in a prechamber natural gas engine under varying EGR-dilution levels

AR Varma, S Singh, R Rajasegar, A Srna - Fuel, 2024 - Elsevier
The on-road natural-gas (NG) fueled transportation relies on stoichiometric spark-ignition
engines for the advantages of simple after-treatment system despite the efficiency penalty …

Influence of Passive Pre-Chamber Nozzle Diameter on Jet Ignition in a Constant-Volume Optical Engine under Varying Load and Dilution Conditions

DE Lee, T Yu, A Alam, C Iyer, S Wooldridge… - … International Journal of …, 2023 - sae.org
Despite the growing prominence of electrified vehicles, internal combustion engines remain
essential in future transportation. This study delves into passive pre-chamber jet ignition, a …

An Optical Study on the Ignition and Flame Development Initiated by a Combination of Passive Pre-Chamber and Spark Ignition

Y Zhang, X Ma, J Mao, Z Wang, Z Wang… - Combustion Science …, 2024 - Taylor & Francis
Pre-chamber jet ignition combined with spark ignition in main chamber has advantages in
adjusting the combustion phase and improving the burning rate for spark ignition engines. In …

Nozzle Design of Plug-and-Play Passive Pre-Chamber Ignition Systems for Natural Gas Engines

W Li, J Ma, T Zhu, H Wei, J Pan - Applied Sciences, 2023 - mdpi.com
To evaluate the significance of the geometrical parameters of a passive pre-chamber on
engine performance, this study investigated the design of a plug-and-play passive pre …

Lean ammonia-fueled engine operation enabled by hydrogen-assisted turbulent jet ignition

SA Reggeti, WF Northrop - Frontiers in Mechanical Engineering, 2024 - frontiersin.org
Anhydrous ammonia (NH3) use in internal combustion engines represents a zero-carbon
energy solution that is fully sustainable if NH3 is generated renewably. An active hydrogen …

Improvement of the EGR Dilution Tolerance in Gasoline Engines by the Use of a HSASI Pre-Chamber Spark Plug

S Holzberger, M Kettner, R Kirchberger - 2023 - sae.org
Charge dilution in gasoline engines reduces NOx emis-sions and wall heat losses by the
lower combustion temperature. Furthermore, under part load conditions de-throttling allows …