초록 ▼

A low emissions combustion system with a plurality of tangential fuel injectors to introduce a fuel/air mixture at the combustor dome end of an annular combustion chamber in two spaced injector planes. Each of the spaced injector planes includes multiple tangential fuel injectors delivering premixed

A low emissions combustion system with a plurality of tangential fuel injectors to introduce a fuel/air mixture at the combustor dome end of an annular combustion chamber in two spaced injector planes. Each of the spaced injector planes includes multiple tangential fuel injectors delivering premixed fuel and air into the annular combustor. A generally skirt-shaped flow control baffle extends from the tapered inner liner into the annular combustion chamber downstream of the fuel injector planes. A plurality of air dilution holes in the tapered inner liner underneath the flow control baffle introduce dilution air into the annular combustion chamber while another plurality of air dilution holes in the cylindrical outer liner introduces more dilution air downstream from the flow control baffle.

대표청구항 ▼

1. A low emissions combustion system for a gas turbine engine, comprising:an annular combustor having an outer liner, an inner liner, a closed upstream end, and an open discharge end; a first plurality of tangential fuel injectors spaced around the periphery of said closed end of said combustor and

1. A low emissions combustion system for a gas turbine engine, comprising:an annular combustor having an outer liner, an inner liner, a closed upstream end, and an open discharge end; a first plurality of tangential fuel injectors spaced around the periphery of said closed end of said combustor and disposed in a first axial plane; a second plurality of tangential fuel injectors spaced around the periphery of said closed end of said combustor and disposed in a second axial plane downstream of said first axial plane; a generally skirt-shaped, flow control baffle extending from said inner liner downstream into the annular combustor between said inner liner and said outer liner, said generally skirt-shaped, flow control baffle projecting from generally one-third to two-thirds of the distance between said inner liner and said outer liner; a plurality of spaced air dilution openings in said inner liner beneath said generally skirt-shaped, flow control baffle, said generally skirt-shaped, flow control baffle directing the air from said plurality of spaced air dilution openings in a downstream direction; and a plurality of spaced air dilution openings in said outer liner of said annular combustor to inject additional dilution air into said annular combustor generally downstream of said generally skirt-shaped, flow control baffle.