Topic
Spark-ignition engine
About: Spark-ignition engine is a research topic. Over the lifetime, 4352 publications have been published within this topic receiving 66550 citations.
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TL;DR: In this paper, the effects of using unleaded gasoline and ethanol blends on engine performance and exhaust emissions have been experimentally investigated on a Hydra single-cylinder, four-stroke, spark ignition engine.
159 citations
TL;DR: In this paper, an ANN model based on standard back propagation algorithm was developed to predict the brake specific fuel consumption, effective power and average effective pressure and exhaust gas temperature of the methanol engine.
156 citations
TL;DR: A spark ignition engine was used to study the impact of fuel composition and of the air/fuel equivalence (lambda) ratio on exhaust emissions of alcohols and aldehydes/ketones and the exhaust concentration of acetaldehyde and acetone presents a complex behavior.
Abstract: A spark ignition engine was used to study the impact of fuel composition and of the air/fuel equivalence (λ) ratio on exhaust emissions of alcohols and aldehydes/ketones. Fuel blends contained eigh...
154 citations
TL;DR: In this article, a review of gas motion into, within, and out of the engine cylinder that governs combustion characteristics and breathing capabilities of spark-ignition engines and compressionignition or diesel engines is presented.
Abstract: The flow field within the cylinder of internal combustion engines is the most important factor controlling the combustion process. Thus it has a major impact on engine operation. This paper reviews those aspects of gas motion into, within, and out of the engine cylinder that govern the combustion characteristics and breathing capabilities of spark-ignition engines and compression-ignition or diesel engines. Necessary background information and reciprocating engine operating cycles, the primary effect of piston motion and the spark-ignition and diesel engine combustion processes is first summarized. Then the characteristics of flow through inlet and exhaust valves in four-stroke cycle engines, and through ports in the cylinder liner in two-stroke cycle engines are reviewed. The essential features of common in-cylinder flows - the large scale rotating flows set up by the conical intake jet, the creation and development of swirl about the cylinder axis, the flows produced during compression due to combustion chamber shape called squish, flow during the combustion process, and two-stroke scavenging flows - are then described. The turbulence characteristics of these flows are then defined and discussed. Finally, flow phenomena which occur near the walls, which are important to heat transfer and hydrocarbon emissions phenomena, are reviewed.
153 citations
TL;DR: In this article, the effect of some parameters on the emission level and characteristics from internal-combustion engines is discussed, including engine design parameters, operational parameters, exhaust gas aftertreatment, fuel types, fuel additives and lubricants.
Abstract: The urban air pollution is a very complicated problem. The exhaust emissions from internal-combustion engines account for a major portion of this problem. It is realized that the content and concentrations of the exhaust emissions depend on various parameters. These parameters include engine design parameters, operational parameters, exhaust gas aftertreatment, fuel types, fuel additives and lubricants. The present review paper discusses the effect of some parameters on the emission level and characteristics from internal-combustion engines. The paper begins with an introduction of general information on the nature of emissions of exhaust gases, including the toxicity and causes of emissions for both spark-ignition and diesel engines. The paper then shifts to an up-to-date information of the published research work on the subject matter. © 1998 John Wiley & Sons, Ltd.
152 citations