Fuel spray nozzle
AssigneeROLLS-ROYCE plc
InventorKyriakoulis L. RESVANIS
Life of this patent
Estimating the term…
Abstract
A fuel spray nozzle is provided for atomising liquid in a gas, the nozzle comprising: a gas passage; a liquid passage; a prefilming surface positioned downstream of the liquid passage and the gas passage, and configured to receive liquid from the liquid passage and to receive gas from the gas passage; wherein the liquid passage terminates at an exit orifice upstream of the prefilming surface; and wherein the gas passage contains a flow perturbator upstream of the liquid passage exit orifice, to increase the turbulence of gas passing from the gas passage to the prefilming surface.
Claims20
A fuel spray nozzle, for atomising liquid in a gas, comprising:
- a gas passage;
- a liquid passage;
- a prefilming surface positioned downstream of the liquid passage and the gas passage, and configured to receive liquid from the liquid passage and to receive gas from the gas passage;
- wherein the liquid passage terminates at an exit orifice upstream of the prefilming surface;
- and
- wherein the gas passage contains a flow perturbator upstream of the liquid passage exit orifice, to increase the turbulence of gas passing from the gas passage to the prefilming surface.
A method of atomising liquid in gas, comprising the steps of:
- supplying gas to prefilming surface via a gas passage;
- and
- supplying liquid to the prefilming surface via an exit orifice upstream of the prefilming surface;
- wherein the gas passage contains a flow perturbator upstream of the liquid passage exit orifice, to increase the turbulence of gas passing from the gas passage to the prefilming surface.
A fuel spray nozzle, for atomising liquid in a gas, comprising:
- a gas passage;
- a liquid passage arranged concentrically around the gas passage;
- a second gas passage arranged concentrically around the liquid passage;
- a prefilming surface positioned downstream of the liquid passage and the gas passage, and configured to receive liquid from the liquid passage and to receive gas from the gas passage;
- wherein the liquid passage terminates at an exit orifice upstream of the prefilming surface;
- and
- wherein the gas passage contains a flow perturbator upstream of the liquid passage exit orifice, to increase the turbulence of gas passing from the gas passage to the prefilming surface.
Dependencies are inferred from the claim text.