The spark advance determines the efficiency of spark-ignited (SI) engines by positioning the combustion in relation to the piston motion. Today’s spark-advance controllers are open-loop systems that measure parameters that effect the sparkadvance setting and compensate for their effects. Several parameters influence the best spark-advance setting but it would be too expensive to measure and acc...

In this study, effects of adding butene, homopolymer to gasoline on the performance a four-stroke spark ignition (SI) engine and pollutant emissions have been investigated. This additive increases octane number gasoline. research, was combined with non-leaded Also, in addition fuel changes use additives, plugs were replaced three types used for study. These include single electrode plug, dual p...

GENERATED NOISE IN IGNITION SYSTEMS High-frequency electromagnetic interference (EMI), commonly referred to as Radio Frequency Interference (RFI), generated by a gasoline engine ignition system, comes primarily from the high-voltage side of the circuit. Ignition systems produce sparks at the coil where the battery voltage is converted into high voltage pulses, at the distributor where the high ...

This paper analyses the influence of type electrode in a spark plug on exhaust gas emission. The objects research were following vehicles different years production: Volkswagen Beetle 1300, Honda Nighthawk 650, BMW e46 318i, Hyundai i10, and Audi A4 B6. powered by petrol LPG. Spark plugs selected for vehicles, with kinds construction main electrodes numbers poles but similar heat values. A comp...