Super-knock suppression RCM experiments
The research of normal combustion, knock and super-knock in highly boosted gasoline engine could be conducted on a RCM platform associated with optical methods to obtain the pressure traces and …
Month: September 2019
The cause of cyclic variation in SI engine
Many researchers have investigated the cause of cyclic variation with a focus on the ignition and combustion process in SI engine. In both experimental and simulation studies, the early phase …
spark ignition engine specifications
A single-cylinder high-compression-ratio engine with the specifications was shown in Table 1. The tested engine was designed so as to enhance thermal efficiency under lean conditions around an excess air …
Spark plug discharged energy analysis
To estimate the actual electric energy consumed of spark plug in the cylinder, the resistance of the ignition system was considered. The equivalent circuit of spark plug used in the …
Heat-release analysis
To discuss the combustion speed, heat release was estimated from the in-cylinder pressure waveform. First, the heat-release rate was calculated by Eq. using combustion analysis software (Ono Sokki, DS0328). And …
Lean burn: Seven detailed aspects
The lean combustion concept has several advantages for the thermal efficiency enhancement of internal combustion (IC) engines: (1) the reduction of pumping loss resulting from throttle opening, (2) the reduction …