A Pathway to Ultra-Lean IC Engine Combustion: The Narrow Throat Pre-chamber

Manuel Alejandro Echeverri Marquez, Ponnya Hlaing, Priybrat Sharma, Emre Cenker, Jihad Badra, Amer Amer, James W. G. Turner, Hong G. Im, Gaetano Magnotti, Bengt Johansson

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Scopus citations


Stable internal combustion (IC) engine operation with a lean mixture allows improved thermal efficiency and reduced engine-out emissions. However, lean limits in IC engines are challenging due to poor ignitibility. Narrow throat pre-chamber as an ignition source allows extending the lean limit through a robust multi-reactive jet ignition and in-cylinder turbulence generation. These benefits have revived the research interest in such narrow throat configurations of pre-chamber. Metal engine studies offer limited insights into the physics of pre-chamber combustion (PCC). However, when coupled with recent optical engine studies involving high-speed visualization and laser diagnostics, a better understanding of this combustion mode is unlocked. This work attempts to evaluate and summarise the recent advancement in PCC research.
Original languageEnglish (US)
Title of host publicationEnergy, Environment, and Sustainability
PublisherSpringer Singapore
Number of pages29
ISBN (Print)9789811687167
StatePublished - Dec 14 2021


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