Results 301 to 310 of about 60,092 (339)
Some of the next articles are maybe not open access.
SAE Technical Paper Series, 2003
<div class="htmlview paragraph">A new “Traveling Spark Ignition” (TSI) system which, aided by a Lorentz force, propels a large plasma into the chamber of internal combustion engines, has been developed and tested on a single cylinder 4-stroke engine run on natural gas. Engine test scenarios included: conventional spark plugs with high energy CDI (
openaire +1 more source
<div class="htmlview paragraph">A new “Traveling Spark Ignition” (TSI) system which, aided by a Lorentz force, propels a large plasma into the chamber of internal combustion engines, has been developed and tested on a single cylinder 4-stroke engine run on natural gas. Engine test scenarios included: conventional spark plugs with high energy CDI (
openaire +1 more source
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 ...
openaire +1 more source
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 ...
openaire +1 more source
1990
Modern ignition systems may be conveniently divided into TWO types. These are: The first system, having contact breaker points, may be as shown opposite. To improve cold start performance this system may have included into it a The second system may use one of many methods of allowing transistors to switch-off the primary current (this being the ...
openaire +1 more source
Modern ignition systems may be conveniently divided into TWO types. These are: The first system, having contact breaker points, may be as shown opposite. To improve cold start performance this system may have included into it a The second system may use one of many methods of allowing transistors to switch-off the primary current (this being the ...
openaire +1 more source
Calorimetry of Ignition Sparks
SAE Technical Paper Series, 1988<div class="htmlview paragraph">The thermal energy transferred to noncombusting gases by a spark at pressures from 1 to 7 atmospheres was measured using a pressure-rise calorimeter. The energy transfer efficiency (from electrical to thermal energy) was determined for conventional coil ignition systems, a plasma jet ignitor, and an ultra-short ...
Richard E. Teets, Jeffrey A. Sell
openaire +1 more source
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
openaire +1 more source
Minimum ignition energy for laser spark ignition
Proceedings of the Combustion Institute, 2005Abstract Combustion ignition by electrical sparks and nonresonant laser sparks is preceded by breakdown, electron heating, relaxation of internal plasma energy, shock wave generation and propagation, and subsonic flows. Measurements and model calculations of these processes (which occur over times of 10 −12 –10 −1 s) in laser sparks show that the ...
openaire +1 more source
Tomorrow's Spark-Ignition Engine
SAE Technical Paper Series, 1965<div class="htmlview paragraph">This paper deals with the commercial version of the spark-ignition engine. Methods are discussed whereby future engines may be increased in horsepower output and reduced in weight and size. Variable compression methods, charge stratification, fuel injection, and turbocharging are discussed as means of increasing ...
openaire +1 more source
Misfire Diagnosis in Spark Ignition Engines
SAE Technical Paper Series, 2002<div class="htmlview paragraph">The paper deals with the implementation of a diagnosis procedure able to reveal if anomalies in the combustion process of a spark ignition engine appear and then to identify the responsible cylinder.</div> <div class="htmlview paragraph">The procedure, based on the processing of the exhaust pressure ...
CHIATTI, Giancarlo, CHIAVOLA, ORNELLA
openaire +3 more sources
Effect of Spark-Ignition on Combustion Periods during Spark-Assisted Compression Ignition
Combustion Science and Technology, 2009Previous works employed pressure-based heat release analysis, spark-discharge current/voltage measurements, and cycle-resolved combustion imaging to identify four periods of stratified-charge spark-assisted compression ignition: spark discharge, early kernel growth (EKG), flame propagation, and compression ignition.
Natarajan, Vinod K. +3 more
openaire +2 more sources
High Efficiency Stoichiometric Spark Ignition Engines
SAE Technical Paper Series, 1994<div class="htmlview paragraph">Nowadays most passenger cars are equipped with spark ignition engines with a three way catalyst. Thus, the improvement of fuel consumption of this type of engine represents a very attractive goal. In fact, it may cause a reduction of pollutant emission, and simultaneously, it may give a contribution to the lowering
De Petris C, Diana S, Giglio V, Police G
openaire +3 more sources