Air bleed slots for gas turbine engines

A gas turbine engine comprising:

• a compressor section, a combustor section, and a turbine section arranged along an engine axis, wherein at least one of the compressor section and the turbine section comprise a stator structure to be arranged about the engine axis;
• a plurality of stator vanes extending radially inward from the stator structure, wherein each stator vane defines a respective vane camber line;
• and
• a plurality of bleed apertures defined in the stator structure, with one bleed aperture defined between each set of two adjacent stator vanes of the plurality of stator vanes,
• wherein a first bleed aperture of the plurality of bleed apertures is defined between a first stator vane having a first vane camber line and a second stator vane having a second vane camber line,
• wherein a channel is defined between the first stator vane and the second stator vane;
• wherein a mid-channel line is defined as equidistant between the first vane camber line and the second vane camber line and follows a parallel contour of the first and second vane camber lines;
• wherein the channel defines a covered portion defined as a region between the first stator vane and the second stator vane and defined at a forward end by a line from a leading edge of the second stator vane drawn normal to the mid-channel line and extending to the first stator vane camber line and at an aft end by a line from a trailing edge of the first stator vane drawn normal to the mid-channel line and extending to the second stator vane camber line;
• wherein the first bleed aperture defines an aperture center line and comprises:
• a leading edge section defined at an upstream end of the first bleed aperture;
• a trailing edge section defined at a downstream end of the first bleed aperture;
• and
• a primary aperture section defined between the leading edge section and the trailing edge section,
• wherein the primary aperture section has a forward end no farther forward than the forward end of the covered portion and the primary aperture section has an aft end no farther forward than the aft end of the covered portion,
• wherein the trailing edge section of the first bleed aperture extends aft of an axial position of the trailing edges of the plurality of stator vanes.