A Pathway to Ultra-Lean IC Engine Combustion: The Narrow Throat Pre-chamber
Book chapter, 2022

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.

Jet ignition

Pre-chamber combustion (PCC)

Lean combustion

Narrow-throat

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Published in

Energy, Environment, and Sustainability

25228366 (ISSN) 25228374 (eISSN)

p. 175-203
978-981-16-8716-7 (ISBN)

Categorizing

Subject Categories (SSIF 2011)

Mechanical Engineering

Identifiers

DOI

10.1007/978-981-16-8717-4_8

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Latest update

4/21/2023