Patent ID: 11920792
Assignee: RTX CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 17:
18. An apparatus for a turbine engine, comprising:
a tubular body extending circumferentially around an axis, the tubular body extending axially along the axis to a downstream body end, the tubular body extending radially between an inner side and an outer side, the inner side forming an outer peripheral boundary of an inner passage within the tubular body, the inner passage extending axially within the tubular body to an outlet orifice at the downstream body end, a steam passage embedded within the tubular body between the inner side and the outer side, and the steam passage configured to flow steam within the tubular body to cool the tubular body along the inner passage;
a fuel nozzle configured to direct fuel into the inner passage;
a first air swirler, the first air swirler extending radially across the steam passage to the inner passage; and
a second air swirler comprising an annular swirler passage, the second air swirler configured to direct swirled air out of the annular swirler passage through an annular outlet from the annular swirler passage into the inner passage for mixing with the fuel within the inner passage, the second air swirler integrated with the tubular body, an upstream portion of the annular swirler passage projecting radially inward towards the axis from an annular inlet into the annular swirler passage, and a downstream portion of the annular swirler passage projecting axially along the axis away from the upstream portion of the annular swirler passage to the annular outlet from the annular swirler passage.