초록

Combustors utilizable in a variety of sizes, configurations, and applications in which vortex induced centrifugal forces and hot gas recirculation are employed for flame stabilization. Both gas and liquid fuels can be burned, and low emission as well as other modes of operation are available.

대표청구항 ▼

A method of effecting the stable, nonluminous combustion of a liquid fuel which comprises the steps of: generating an annulus of axially moving, rotating combustion air; forming a thin, uniform film of fuel on the inner boundary of said annulus at a specified location therealong; atomizing said fuel

A method of effecting the stable, nonluminous combustion of a liquid fuel which comprises the steps of: generating an annulus of axially moving, rotating combustion air; forming a thin, uniform film of fuel on the inner boundary of said annulus at a specified location therealong; atomizing said fuel by contact between said fuel and said combustion air only after said film has been formed on the inner boundary of said annulus and so as to form a stratified annulus of small fuel droplets which resist centrifuging into the swirling annulus of combustion air; thereafter rapidly expanding said stratified annuli of combustion air and fuel droplets to promote the mixing and subsequent combustion of said fuel and air and then so effecting a downstream contraction of the swirling fuel-air mass as to effect the formation of a recirculation zone containing hot gases which stabilize the flame generated by the combustion of the fuel and air and so ignite the fuel as to effect evaporation and heating of the fuel before said stratified annuli of atomized fuel and rotating combustion air are rapidly expanded to promote the mixing of said fuel with the combustion air.