초록 ▼

A gas turbine engine fuel burner comprises a convergent/divergent flow passage which receives a flow of swirling fuel and air upstream of the passage throat. The fuel and air mixture passes through the throat and is entrained into a further mass of swirling air which enters the passage through air s

A gas turbine engine fuel burner comprises a convergent/divergent flow passage which receives a flow of swirling fuel and air upstream of the passage throat. The fuel and air mixture passes through the throat and is entrained into a further mass of swirling air which enters the passage through air swirlers in the wall of the divergent portion of the passage. The invention is intended to promote good fuel and air mixing, fine atomization and a reduction in carbon deposition on the burner.

대표청구항 ▼

A gas turbine fuel burner comprising a fuel manifold arranged to receive fuel from a fuel feed arm, a flow passage having a surrounding outer surface, the flow passage comprising an annular converging section supplied with air, and fuel from the fuel manifold for mixing of fuel and air and having a

A gas turbine fuel burner comprising a fuel manifold arranged to receive fuel from a fuel feed arm, a flow passage having a surrounding outer surface, the flow passage comprising an annular converging section supplied with air, and fuel from the fuel manifold for mixing of fuel and air and having a diverging section supplied with further air and a throat located therebetween, said flow passage being defined in part at its outer surface by an annular intermediate member, said annular intermediate member having a portion converging to said throat and a portion diverging downstream of said throat, said annular converging section of said flow passage being defined between the converging portion of said annular intermediate member and a hollow inner member, said hollow member having a closed downstream end and an open upstream end, the downstream end of said inner member being located at said throat of said flow passage, first radial swirling means in said inner member for supplying air to said annular converging section of said flow passage, second axial swirling means in said annular intermediate member downstream of said throat for supplying air to said diverging section of said flow passage, and fuel swirling means in said annular intermediate member upstream of said throat for supplying fuel from said fuel manifold to said annular converging section of said flow passage.