Results 211 to 220 of about 1,711 (266)

Knock in Spark Ignition Engines

SAE Technical Paper Series, 1981
<div class="htmlview paragraph">The knocking characteristics of several fuels are studied using a single cylinder test engine with variations in key engine operating parameters. Compression ratio, spark advance, fuel equivalence ratio, exhaust gas recirculation, engine speed, charge inlet pressure and charge inlet temperature were varied to yield
A. By, B. Kempinski, J. M. Rife
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A Dynamical Instability of Spark-Ignited Engines

Science, 1984
A simple model for spark-ignited engines is proposed in which the residual exhaust gases of a combustion event affect ignition of the subsequent charge. The model is an example of a one-dimensional, discrete, nonlinear mapping of an interval. Laminar flame correlations incorporated within models for ignition exhibit Arrhenius kinetics. Small variations
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Spark Spectroscopy for Spark Ignition Engine Diagnostics

SAE Technical Paper Series, 1995
<div class="htmlview paragraph">The light emissions from a spark discharge were observed by inserting a fibre optic cable through the centre electrode of a spark plug, to investigate the possibility of determining the fuel-air ratio in the spark gap at ignition with spectroscopy.</div> <div class="htmlview paragraph">The total ...
R. Mark Merer, James S. Wallace
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A new ignition model for spark-ignited engine simulations

Parallel Computing, 2001
The amount of spark energy deposited into the combustion chamber is key to an optimum ignition as one can end up with misfires when this energy is low or with other undesired effects on engine performance and byproducts when it is high. Experimentally, up to now, no one has been able to correlate the combustion outcome accurately to the spark ...
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POLLUTANT FORMATION AND CONTROL IN SPARK-IGNITION ENGINES

Symposium (International) on Combustion, 1975
The fundamental aspects of pollutant formation and control in spark-ignition engines are reviewed. The pollutants examined are oxides of nitrogen, unburned hydrocarbons and carbon monoxide. The engine concepts discussed are conventional carbureted spark-ignition engines, the Wankel, and different types of stratified charge engines.
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Spark ignition engines

1985
This chapter considers how the combustion process is initiated and constrained in spark ignition engines. The air/fuel mixture has to be close to stoichiometric (chemically correct) for satisfactory spark ignition and flame propagation. The equivalence ratio or mixture strength of the air/fuel mixture also affects pollutant emissions, as discussed in ...
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The Prediction of Auto Ignition in a Spark-Ignited Engine

SAE Technical Paper Series, 1984
<div class="htmlview paragraph">A constant volume combustion simulation has been used to compute the ignition delays of pure fuels and binary fuel mixtures in air. Minima in the ignition delays were predicted by a comprehensive chemical kinetic mechanism for binary fuel mixtures with methane.
Philip M. Dimpelfeld, David E. Foster
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Nanoparticles Characterization at Spark Ignition Engine Exhaust

SAE Technical Paper Series, 2005
<div class="htmlview paragraph">The aim of the paper is the characterization in terms of chemical and physical nature of particles at exhaust of spark ignition (SI) engine. Measurements were carried out at exhaust of 16v - 1.2 litre Port Fuel Injection Spark Ignition engine downstream a catalyst.</div> <div class="htmlview paragraph"> ...
Di Iorio S, Merola SS, Vaglieco BM, Tornatore C   +3 more
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Lean combustion stability of spark ignition engines

Proceedings of 2003 IEEE Conference on Control Applications, 2003. CCA 2003., 2004
Literature shows that by controlling engines at extreme lean operating conditions (equivalence ratio
Pingan He 0002, Sarangapani Jagannathan
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Injector characteristics estimation for spark ignition engines

Proceedings of the 37th IEEE Conference on Decision and Control (Cat. No.98CH36171), 2002
Injector characteristics estimation is an essential ingredient for an effective automotive engine control system. An accurate estimation algorithm is presented in the paper. Simulation and experimental results are provided to demonstrate the quality of the algorithm.
L. Benvenuti, DI BENEDETTO, MARIA DOMENICA, C. Rossi, A. L. Sangiovanni Vincentelli   +3 more
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