COUNTERFLOW BURNER MODULE Russian patent published in 2024 - IPC F23D14/02 

FIELD: engines.

SUBSTANCE: invention is intended for formation and combustion of fuel-air mixture in combustion chambers of gas turbine engines. Counterflow burner module comprises primary confined mixing chamber shaped as diffuser-confuser channel, secondary direct-flow mixing chamber, tangential swirling device with inter-blade channels, axial swirling device and fuel injector. In the fuel injector there is a circumferentially distributed fuel injection system, in the axial part of the secondary direct-flow mixing chamber there is a truncated cone-fairing with a fan system of fuel channels located at an angle to its axis, which provides supply of pilot gas to the combustion zone of the fuel-depleted, partially mixed fuel-air mixture. An annular air supply channel with an axial vane swirler is made coaxially to the fuel injector.

EFFECT: invention increases mass rate of combustion, completeness of fuel combustion, reduces concentration of carbon monoxide and nitrogen oxides in the combustion zone.

1 cl, 3 dwg