TECH: TOPICS
Last month, when explaining the principles behind the workings of Hartech's Eco Power technology, which is capable of improving engine performance whilst simultaneously reducing emissions (and therefore not only helping in the battle against global warming, but also prolonging production and remanufacturing of internal combustion engines), I explained how notwithstanding valve overlap and ignition timing adjustments, pressure inside an engine when ignition is timed to spark is, in principle, a combination of three main factors. The first is atmospheric pressure (ATM), which none of us can control. Pity! The second is compression ratio (C/R), while the third is volumetric efficiency (VE), which is how much or what proportion of air an engine has trapped inside a cylinder (compared to a full cylinder at atmosphericyou wanted a more detailed explanation, which is why I'll now attempt to present the finer points of this analysis.
