초록 ▼

A combustor for generating a hot gas stream by the combustion of fuel in a pressurized airstream is disclosed including a generally toroidal-shaped combustion chamber of relatively short axial length, an annular orifice providing for the entry of a main airstream into the combustion chamber and a pr

A combustor for generating a hot gas stream by the combustion of fuel in a pressurized airstream is disclosed including a generally toroidal-shaped combustion chamber of relatively short axial length, an annular orifice providing for the entry of a main airstream into the combustion chamber and a premixing chamber for generating and directing a vapor phase air-fuel premixture into the entering main airstream to form a combustible mixture for burning in the combustion chamber. In a preferred form, the mixture burns along a generally toroidal-helical gas flow path. The combustor is particularly suited for use in a gas turbine engine.

대표청구항 ▼

A combustor for generating a hot gas stream by the combustion of fuel in a pressurized air stream, said combustor comprising: a housing; a combustion zone therein; a plurality of radially spaced air-fuel premixing chambers each having an upstream end and opening downstream into said combustion zone;

A combustor for generating a hot gas stream by the combustion of fuel in a pressurized air stream, said combustor comprising: a housing; a combustion zone therein; a plurality of radially spaced air-fuel premixing chambers each having an upstream end and opening downstream into said combustion zone; means for injecting fuel into said premixing chambers at said upstream end independently of each other; and a compressed air inlet plenum surrounding said premixing chambers and separated therefrom by baffles, said plenum communicating with said premixing chambers through openings in said baffles to generate a substantially homogeneous vapor-phase air-fuel premixture in each of said premixture chambers; said plenum further communicating with said combustion zone through a plurality of radially spaced orifices adjacent the outer periphery of said baffles providing for the entry of main stream outwardly circumferential of each of said premixing chambers at the downstream end thereof; said premixture entering said main air stream and having a substantial tangential gas flow velocity component when introduced therein such that said air-fuel premixture is substantially instantaneously intermixed into said main air stream to generate a combustible air-fuel mixture for burning in said combustion zone; the main air streams being radially spaced and having a vector component of flow effective to generate overlapping vortical recirculation zones of burned gases.