Patent ID: 11927099
Assignee: NUOVO PIGNONE TECNOLOGIE-SRL
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A composite seal structure adapted to be mounted to a turbomachine, the composite seal structure comprising:
a carrier ring having a center axis and comprising,
a circumferential outer wall with an inner surface and an outer surface,
a first side wall and a second side wall protruding radially inwardly from the circumferential outer wall towards the center axis, the first side wall and the second side wall having circumferentially-spaced holes with a counterbore disposed therein,
wherein the circumferential outer wall, the first side wall, and the second side wall form an annular groove;

a seal element having a main body with a first region in surface-to-surface contact with the annular groove and a second region protruding from the annular groove of the carrier ring toward the center axis, the seal element having circumferentially-spaced recesses on both sides of the main body, the circumferentially-spaced recess terminating within the main body; and
a fastening arrangement coupling the seal element and the carrier ring, the fastening arrangement comprising a first set of fastening pins and a second set of fastening pins disposed in and extending through the circumferentially-spaced holes of the first side wall and the second side wall, respectively, the fastening pins having a first end terminating inside of the circumferentially-spaced recesses of the main body of the seal element and a second end with a flange that resides in the counterbore.