Split-line stator vane assembly

A split-line stator vane assembly configured to be mounted in a compressor casing at a split-line, the split-line stator vane assembly comprising:

• a first split-line stator vane having a first shank with a first platform portion and a first mounting portion extending radially outward of the first platform portion and mounted to one of an upper casing portion or a lower casing portion of the compressor casing, and a first airfoil extending radially inward of the first platform portion and terminating at a first tip, the first tip being a first free end, wherein the first shank includes a protrusion that extends circumferentially beyond the split-line;
• and
• a second split-line stator vane having a second shank with a second platform portion and a second mounting portion extending radially outward of the second platform portion and mounted to the other of the upper casing portion or the lower casing portion of the compressor casing opposite the first split-line stator vane, and a second airfoil extending radially inward of the second platform portion and terminating at a second tip, the second tip being a second free end, wherein the second shank includes a recess that extends circumferentially away from the split-line, the recess being complementary to the protrusion,
• wherein a leading edge portion of the first airfoil is coupled to the protrusion of the first shank of the first split-line stator vane such that only the leading edge portion of the first airfoil extends circumferentially beyond the split-line.

A turbomachine, comprising:

• a combustor section;
• a turbine section;
• and
• a compressor section, the compressor section comprising:
• a compressor casing having an upper casing portion coupled to a lower casing portion such that a split-line is defined between the upper casing portion and the lower casing portion;
• and
• a plurality of stator vanes circumferentially arranged in a stage of the compressor casing, the plurality of stator vanes comprising a split-line stator vane assembly mounted in the compressor casing at the split-line, the split-line stator vane assembly comprising:
• a first split-line stator vane having a first shank with a first platform portion and a first mounting portion extending radially outward of the first platform portion and mounted to one of the upper casing portion or the lower casing portion of the compressor casing, and a first airfoil extending radially inward of the first platform portion and terminating at a first tip, the first tip being a first free end, wherein the first shank includes a protrusion that extends circumferentially beyond the split-line;
• and
• a second split-line stator vane having a second shank with a second platform portion and a second mounting portion extending radially outward of the second platform portion and mounted to the other of the upper casing portion or the lower casing portion of the compressor casing opposite to the first split-line stator vane, and a second airfoil extending radially inward of the second platform portion and terminating at a second tip, the second tip being a second free end, wherein the second shank includes a recess that extends away from the split-line, the recess being complementary to the protrusion,
• wherein a leading edge portion of the first airfoil is coupled to the protrusion of the first shank of the first split-line stator vane such that only the leading edge portion of the first airfoil extends circumferentially beyond the split-line.