2006-01-3276 residual gas fraction measurement and estimation on a homogeneous charge compression ignition engine utilizing the negative valve overlap strategy copyright © 2006 sae international... A novel incylinder gas sampling technique was employed to obtain cyclic dynamic measurements of CO2 concentration in the compression stroke and in combination with CO2 concentration measurements in the exhaust stroke, cyclic Residual Gas Fraction was measured....
Effects of pre-lift intake valve strategies on the performance of a disi vva turbocharged engine at part and full load operation ... The pre-lift consists of a small, almost constant lift of the intake valve during the exhaust stroke, so to increase the valves overlapping....
Design and analysis of six stroke internal combustion engine... However, the major downside of the even most efficient modern 4 stroke engine is the production of significant amounts of excess heat energy, dissipated though the cylinder walls of the engine and expelled as waste energy during the exhaust stroke of the cycle....
Analyzing the effect of air capacitor turbocharging single cylinder engines on fuel economy and emissions through modeling and experimentation... Currently, turbocharging is common in multi-cylinder engines, but it is not commonly used on single-cylinder engines due to the phase mismatch between the exhaust stroke (when the turbocharger is powered) and the intake stroke (when the engine intakes the compressed air)....
