Patent ID: 8567198
Filing Date: 2013-10-29
Classification: B05B,F23D

Abstract:
1. An injection nozzle useful for injecting liquid fuel into the combustion chamber of a gas turbine, the injection nozzle comprising: a plate comprising a nozzle orifice and an inner chamber which extends along a nozzle axis, the inner chamber conically tapering to the nozzle orifice, and a plurality of inlet ports distributed around the nozzle axis through which the fuel which is to be injected can be fed from outside the plate into the inner chamber and towards the combustion chamber of the gas turbine; wherein the inlet ports are oriented perpendicularly to the nozzle axis and each extends tangentially into the inner chamber; and a solid pin extending along the nozzle axis in the inner chamber and passing through a region of the inner chamber including mouths of the inlet ports and extending into the nozzle orifice; wherein the nozzle orifice is circular and the solid pin has a circular lateral cross-section in the region of the nozzle orifice and is sized to form an annular gap between the solid pin and a portion of the plate defining the nozzle orifice; and wherein the solid pin has a continuously cylindrical shape with a constant outside diameter through its entire length.