PURPOSE:To reduce the mixing of exhaust to fresh air and increase scavenge efficiency, in a uniflow unsymmetrical scavenging 2-cycle engine of overhead intake-scavenge valve type, by causing a positive swirl flow of the fresh air and performing scavenging action at replacement of scavenged air ...
A quasi-dimensional spark-ignition (SI) engine cycle model has been developed. In this model, combustion is modeled as a turbulent flame propagation process. During the combustion, it is assumed that the cylinder charge consists of unburned and burned gas zones. A computer code was developed ...
If ignition is too late, then although the work done by the piston during pression stroke is reduced, so is the work done on the piston during the expansion stroke, since all pressures during the cycle will be reduced. Furthermore, there is a risk bustion will be plete before the ...
The first firing cycle of a spark ignition engine is usually lean, since the fuel vaporization is poor. The second firing cycle may then be rich, as the heat from the first firing cycle causes this excess liquid fuel to vaporize.
1) spark-ignition combustion cycle 点燃式燃烧循环2) circulating combustion 循环燃烧 1. The principle and structure of multiple in-furnace cerculating combustion technology of a CFBC boller comprlsing lnner circtilating combustion technoloby of furnace lower portion dense-phase region and circulating ...
engine. The voltage is provided to the spark plug either from the battery or from the magneto. With diesel, the self-ignition temperature is comparatively lower. When diesel fuel is compressed to high pressures, its temperature also increases beyond the self-ignition temperature of...
15.engine wet cycle无点火的发动机转动 16."In engines with spark ignition, fuel-injection pumps are often used instead of conventional carburetors."在火花点火式发动机中,有时用燃油喷射泵代替普通的化油器。 17.Carburetor: Device for supplying a spark-ignition engine with a mixture of fuel and air....
PART 1: SPARK IGNITION ENGINE The addition of alcohol to conventional hydrocarbon fuels for a spark-ignition engine can increase the fuel octane rating and the power for a given engine displacement and compression ratio. In this work, the influence of butanol additio... C Tornatore,L Marchitto...
A numerical simulation of the influence of different hydrogen fractions, excess air ratios and EGR mass fractions in a spark-ignition engine was conducted... J Wang,Z Huang,B Liu,... - 《Frontiers of Energy & Power Engineering in China》 被引量: 203发表: 2009年 Study of cycle-by-cycle...
Cycle-by-Cycle Variations in Spark Ignition Engine Combustion - Part I: Flame Speed and Combustion Measurements and a Simplified Turbulent Combustion Model A phenomenological model of turbulent combustion has been developed and validated against data from wide ranging tests on a Ricardo E6 engine. ...