Ultra-Downsizing of Internal Combustion Engines

Victor Gheorghiu
2011 SAE Technical Paper Series   unpublished
The downsizing of internal combustion engines (ICE) is already recognized as a very suitable method for the concurrent enhancement of indicated fuel conversion efficiency (IFCE) and the lowering of CO 2 and NO x emissions [1], [2] . In this report, ultra-downsizing is introduced as an even higher stage of development of ICE. Ultra-downsizing will be implemented here by means of real Atkinson cycles using asymmetrical crank mechanisms, combined with multi-stage highpressure turbocharging and
more » ... rbocharging and very intensive intercooling. This will allow an increase of ICE performance while keeping the thermal and mechanical strain strength of engine components within the current usual limits.
doi:10.4271/2011-28-0049 fatcat:526z4cseqjg43cwp6g2ln6qm74