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US 12,181,151 B2Granted
Mixer vanes having a waveform profile
AssigneeGeneral Electric Company
InventorsRimple Rangrej, Saket Singh, Pradeep Naik
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Abstract
A main mixer for an engine. The main mixer includes a plurality of mixer vanes located circumferentially around a mixer body. Each mixer vane includes a waveform profile. The waveform profile detaches or trips a boundary layer of an air flow across the mixer vane such that the waveform profile introduces turbulence into the air flow.
Claims20
A main mixer for an engine, the main mixer comprising:
- an annular mixer body having a longitudinal centerline;
- a plurality of mixer vanes located circumferentially around the annular mixer body, each mixer vane of the plurality of mixer vanes including:
- a leading edge;
- a trailing edge;
- and
- a plurality of bodies extending, in series, from the leading edge to the trailing edge, each body of the plurality of bodies defining a waveform profile formed by a series of crests and troughs, the crests extending radially outward from the troughs,
- wherein an air flow passes over each mixer vane from the leading edge to the trailing edge, and, wherein each of the waveform profiles is configured to detach a boundary layer of the air flow across the respective mixer vane such that the waveform profile introduces turbulence into the air flow.
4 more elements
An engine comprising:
- a combustor;
- a fuel nozzle configured to provide a fuel flow to the combustor;
- and
- a main mixer having a longitudinal centerline and comprising a plurality of mixer vanes, each mixer vane of the plurality of mixer vanes having:
- a leading edge;
- a trailing edge;
- and
- a plurality of bodies extending, in series, from the leading edge to the trailing edge, each body of the plurality of bodies defining a waveform profile formed by a series of crests and troughs, the crests extending radially outward from the troughs,
- wherein an air flow passes over each mixer vane, and, wherein each of the waveform profiles is configured to detach a boundary layer of the air flow across the respective mixer vane such that the waveform profile introduces turbulence into the air flow, wherein the air flow is configured to mix with the fuel flow.
6 more elements
Dependencies are inferred from the claim text.