Search for dissertations about: "spark plug"
Showing result 1 - 5 of 11 swedish dissertations containing the words spark plug.
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1. Theoretical and Experimental Studies of the Formation of Ionized Gases in Spark Ignition Engines
Abstract : The processes that govern the formation, existence and consumption of ions in gases have been studied both experimentally and theoretically. The aim of the work is targeted at increasing the understanding of these phenomena in the working gases inside an engine. READ MORE
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2. Spark Advance Modeling and Control
Abstract : 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 loopsystems that measure parameters that effect the spark-advance setting and compensate for their effects. READ MORE
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3. Development of Laser-Induced Fluorescence for Precombustion Diagnostics in Spark-Ignition Engines
Abstract : Motivated by a desire to understand and optimize combustion in spark-ignition (SI) engines, laser techniques have been developed for measurement of fuel and residual gas, respectively, in the precombustion mixture of an operating SI engine. The primary objective was to obtain two-dimensional, quantitative data in the vicinity of the spark gap at the time of ignition. READ MORE
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4. Lean Homogeneous combustion for SI-Engines
Abstract : This thesis is about the application of lean homogeneous combustion in SI engines using a passive SCR after treatment system. By implementing this concept a decrease in fuel consumption and engine out NOx is expected. The data and results are obtained through engine experiments. READ MORE
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5. Real-time control of an SI engine using ion current based algorithms
Abstract : Reducing emissions and improving fuel efficiency in automobiles are today important issues. New sensor techniques are developed to extract detailed combustion information to enable closed loop engine control. READ MORE