Aspirating face seal assembly for a rotary machine

A rotary machine comprising:

• a rotating component;
• and
• a seal assembly having a seal bearing having a face that opposes the rotating component of the rotary machine, the seal assembly also including a slide device coupled with the seal bearing, the slide device configured to be positioned between a first fluid pressure volume in the rotary machine and a different, second fluid pressure volume in the rotary machine, the slide device configured to axially move parallel to a rotation axis of the rotary machine and toward the rotating component of the rotary machine responsive to pressurization of the rotary machine,
• wherein the slide device includes one or more cross-over ports and one or more of the rotating component or the seal bearing includes one or more feed ports,
• wherein the one or more feed ports are positioned to direct a fluid toward the one or more of the face of the seal bearing of the rotating component to form one or more aerostatic portions of a film bearing between the face of the seal bearing and the rotating component of the rotary machine using the fluid and a pressure differential in the fluid between a higher fluid pressure side of the seal assembly and a lower fluid pressure side of the seal assembly,
• wherein the face of the seal bearing or the rotating component is a non-planar surface that, during rotating motion of the rotating component relative to the face of the seal bearing, forms one or more aerodynamic portions of the film bearing between the face of the seal bearing and the rotating component of the rotary machine,
• wherein the face of the seal bearing includes polygon-shaped grooves recessed into the face of the seal bearing or the rotating component away from the rotating component of the rotary machine or away from the face of the seal bearing, and
• wherein the polygon-shaped grooves include two or more triangle-shaped recessed portions of the face.