Multi-core brush seal assembly for rotary machines

A rotary machine comprising:

• a rotor having a longitudinal axis;
• a plurality of stator casing segments circumferentially arrayed together to define a stator casing which is generally coaxially aligned with said longitudinal axis and which circumferentially surrounds and is radially spaced apart from said rotor;
• and
• at least one brush seal assembly comprising:
• an elongate brush core holder;
• at least three elongate brush core packs bundled together side-by-side in a staggered arrangement in said brush core holder forming a single assembly;
• each said brush core pack comprising:
• a bristle holder;
• and
• a plurality of bristles coupled to said bristle holder.

A brush seal assembly comprising:

• an elongate brush core holder;
• and
• a plurality of brush core packs bundled together side-by-side in said brush core holder;
• said plurality of brush core packs comprising a plurality of first brush core packs and a plurality of second brush core packs, said first brush core packs comprising bristles having a first length, said second brush core packs including bristles comprising a second length that is longer than said first length, each said brush core pack further comprising:
• a bristle holder;
• and
• a plurality of bristles coupled to said bristle holder.