HCCI combustion – a challenge for internal combustion engine
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Publication date: 2009-02-01
Combustion Engines 2009,136(1), 3-9
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ABSTRACT
HCCI engine offers a high thermal efficiency combined with low nitrogen oxides and particulate matter emissions.
However the key problem: controlled autoignition (CAI) on which is focused this paper is still not solved. Attempts to
solve CAI problem as: variable compression ratio (VCR), variable valve train (VVT), exhaust gas recirculation (EGR) and
application of fuels having different volatility characteristics and sensitivity to autoignition are disused. Also possibility
of fuelling HCCI engine with natural gas (and ignition improver) is presented.