Fluid collection gutter for a geared turbine engine

A turbine engine system, comprising:

• a gear train with an axial centerline, the gear train including a ring gear and a fluid passage that extends radially through the ring gear;
• a gutter disposed radially outside of the axial centerline, the gutter at least partially circumscribing the ring gear and the fluid passage, and including
• an inner surface;
• and
• a channel fluidly coupled with the fluid passage and that receives fluid directed out of the gear train, the channel extending radially into the gutter from the inner surface to a channel end, and circumferentially to a channel outlet;
• wherein at least a portion of the channel has a cross-sectional channel geometry that tapers axially as the channel extends radially towards the channel end;
• wherein the cross-sectional channel geometry has a polygonal shape;
• and
• wherein the at least a portion of the channel is located adjacent and upstream, relative to flow through the channel, of the channel outlet;
• and
• a plurality of turbine engine rotors arranged along the axial centerline and including a first rotor and a second rotor, each of the engine rotors including a plurality of rotor blades arranged around and connected to a rotor disk;
• wherein the first rotor is connected to and driven by the second rotor through the gear train;
• wherein the channel geometry is formed by a plurality of channel regions, and each of the channel regions has a geometry and an axially extending width;
• wherein the channel regions include an inner region and an outer region located radially outboard of the inner region;
• wherein at least one of
• the geometry of the inner region is different than the geometry of the outer region;
• and
• the width of the inner region is different than the width of the outer region;
• wherein the geometries of the inner region and the outer region are substantially rectangular;
• and
• wherein the width of the inner region is greater than the width of the outer region.

A turbine engine system, comprising:

• a gear train with an axial centerline, the gear train including a ring gear and a fluid passage that extends radially through the ring gear;
• a gutter disposed radially outside of the axial centerline, the gutter at least partially circumscribing the ring gear and the fluid passage, and including
• an inner surface;
• and
• a channel fluidly coupled with the fluid passage and that receives fluid directed out of the gear train, the channel extending radially into the gutter from the inner surface to a channel end, and circumferentially to a channel outlet;
• wherein at least a portion of the channel has a cross-sectional channel geometry that tapers axially as the channel extends radially towards the channel end;
• wherein the cross-sectional channel geometry has a polygonal shape;
• and
• wherein the at least a portion of the channel is located adjacent and upstream, relative to flow through the channel, of the channel outlet;
• and
• a plurality of turbine engine rotors arranged along the axial centerline and including a first rotor and a second rotor, each of the engine rotors including a plurality of rotor blades arranged around and connected to a rotor disk;
• wherein the first rotor is connected to and driven by the second rotor through the gear train;
• wherein the channel geometry is formed by a plurality of channel regions, and each of the channel regions has a geometry and an axially extending width;
• wherein the channel regions include an inner region and an outer region located radially outboard of the inner region;
• wherein at least one of
• the geometry of the inner region is different than the geometry of the outer region;
• and
• the width of the inner region is different than the width of the outer region;
• wherein the channel regions further include an intermediate region located radially between the inner region and the outer region
• wherein the geometry of the inner region is substantially rectangular;
• wherein the geometry of the intermediate region is substantially trapezoidal;
• and
• wherein the geometry of the outer region is substantially rectangular.

A turbine engine system, comprising:

• a gear train with an axial centerline, the gear train including a ring gear and a fluid passage that extends radially through the ring gear;
• a gutter disposed radially outside of the axial centerline, the gutter at least partially circumscribing the ring gear and the fluid passage, and including
• an inner surface;
• and
• a channel fluidly coupled with the fluid passage and that receives fluid directed out of the gear train, the channel extending radially into the gutter from the inner surface to a channel end, and circumferentially to a channel outlet;
• wherein at least a portion of the channel has a cross-sectional channel geometry that tapers axially as the channel extends radially towards the channel end;
• wherein the cross-sectional channel geometry has a polygonal shape;
• wherein the at least a portion of the channel is located adjacent and upstream, relative to flow through the channel, of the channel outlet;
• and
• wherein the channel outlet has a substantially triangular cross-sectional geometry.

A turbine engine system, comprising:

• a gear train with an axial centerline, the gear train comprising a ring gear;
• and
• a gutter disposed radially outside of the axial centerline, the gutter at least partially circumscribing the ring gear, and the gutter including an inner surface and a channel;
• the channel adapted to receive fluid directed radially out of the ring gear;
• the channel extending radially into the gutter from the inner surface to a channel end, and circumferentially to a channel outlet;
• at least a portion of the channel configured with a cross-sectional channel geometry that tapers axially as the channel extends radially towards the channel end;
• wherein a shape of a first axial half of the cross-sectional channel geometry is substantially a mirror image of a shape of a second axial half of the cross-sectional channel geometry.