TANGENTIAL ANNULAR COMBUSTOR WITH PREMIXED FUEL AND AIR FOR USE ON GAS TURBINE ENGINES Russian patent published in 2017 - IPC F23R3/28 F23R3/46 

FIELD: machine engineering.

SUBSTANCE: method of mixing substances entering the combustion reaction of a gas turbine engine includes the following steps - providing a combustion chamber comprising an outer shell, an inner shell and a perforated front wall, the fuel injectors. The premixed fuel-air mixture is injected in the combustion chamber volume. Reactive substance, injected by fuel and air nozzles, are combusted within mentioned area and create a flow field through the combustion chamber, which rotates around the axis line of the engine. Injected air is coming from the compressor through the perforated front wall. The injection of the mixture is operated through a first series of nozzles disposed adjacent the front wall and having a higher fuel/air ratio than the second set of nozzles with the injection of the mixture downstream of the fuel nozzles, thereby providing the desired mixing and stepped fuel-effect, which in turn, creates optimal conditions for the combustion and reduces NOx and CO emissions from the combustion chamber under partial load and/or full load. Display the hot combustion products from the combustion chamber through the annular opening.

EFFECT: improving the combustion efficiency and reduced emissions of combustion products toxicity.

6 dwg