초록 ▼

The emission of NOx, soot and particulates is minimized by combusting fuel in two sequential steps, viz. a first combustion step wherein a number of fuel jets and a substoichiometric amount of combustion air in the form of an equal number of high-velocity air jets are injected into a combustion cham

The emission of NOx, soot and particulates is minimized by combusting fuel in two sequential steps, viz. a first combustion step wherein a number of fuel jets and a substoichiometric amount of combustion air in the form of an equal number of high-velocity air jets are injected into a combustion chamber in such a manner that (a) each fuel jet merges into one high velocity air jet, (b) the characteristic mixing time of each fuel jet is less than about 10-4 sec, and (c) a plurality of separate fuel/air jets is generated forming at ignition a plurality of primary flames in which a residence time for the fuel of substantially at least 100 ms is maintained; and a second combustion step comprising introducing further combustion air into said combustion chamber for complete combustion of the fuel.

대표청구항 ▼

A process for combustion of a liquid fuel comprising combusting said fuel initially with a substoichiometric amount of air in a combustion chamber, the fuel and combustion air being introduced, respectively, in an equal number of fuel jets and high velocity combustion air jets into the chamber in su

A process for combustion of a liquid fuel comprising combusting said fuel initially with a substoichiometric amount of air in a combustion chamber, the fuel and combustion air being introduced, respectively, in an equal number of fuel jets and high velocity combustion air jets into the chamber in such manner that (a) each fuel jet merges into one high velocity air jet, (b) the characteristic mixing time of each fuel jet with each therefor air jet is less than about 10-4 sec, and (c) a plurality of separate fuel/air jets are generated forming at ignition a plurality of primary flames in which a residence time for the fuel of substantially at least 100 ms is maintained; and introducing additional combustion air into said chamber for complete combustion of the fuel.