Sökning: "internal combustion engines"
Visar resultat 16 - 20 av 163 avhandlingar innehållade orden internal combustion engines.
16. Virtual sensing of combustion quality in SI engines using the ion current
Sammanfattning : .... LÄS MER
17. Homogeneous Lean Combustion in Downsized Spark-Ignited Engines
Sammanfattning : Emissions of greenhouse-gasses and noxious compounds from internal combustion engines propelling personal transportation vehicles is an imminent issue in the society. Therefore, it is vital to find means of reducing these emissions to decrease the impacts of transportation. LÄS MER
18. Spark Ignition Combustion of Direct Injected Alternative Fuels
Sammanfattning : Several technologies and modifications exist to increase the fuel efficiency of passenger vehicles in general and spark ignition engines in particular. Combining a spark ignition engine with an electric drive system in hybrid powertrain and thermodynamic cycle improvements are two such approaches with the potential to greatly reduce fuel consumption. LÄS MER
19. Suspension plasma sprayed thermal barrier coatings for internal combustion engines
Sammanfattning : The upward trend in internal combustion engine efficiency is likely driven by the depletion of fossil fuels. Since no replacement in sight can deliver energy comparable to the conventional oil, there is a need to use it more rationally and effectively. LÄS MER
20. Spray combustion with multiple-injection in modern engine conditions
Sammanfattning : Combustion of fuel in diesel engines emits substances harmful to the environment such as soot. These emissions can be reduced by either in-cylinder treatments or after-treatments. One of the common in-cylinder treatments is multiple-injection, which divides a single fuel injection to multiple smaller injections. LÄS MER