| US 7,500,832 B2 | ||
| Turbine blade self locking seal plate system | ||
| Thomas W. Zagar, Winter Springs, Fla. (US); and Rafael A. De Cardenas, Orlando, Fla. (US) | ||
| Assigned to Siemens Energy, Inc., Orlando, Fla. (US) | ||
| Filed on Jul. 06, 2006, as Appl. No. 11/481,722. | ||
| Prior Publication US 2008/0008593 A1, Jan. 10, 2008 | ||
| Int. Cl. F01D 5/32 (2006.01) | ||
| U.S. Cl. 416—221 [416/96 R; 416/220 R] | 20 Claims |
| 1. In a rotor for a turbine engine, said rotor including at least one rotor disc with blade mounting sections provided in
the periphery of the rotor disc for receiving and mounting blades, the improvement comprising:
an annular, continuous groove provided in said disc adjacent at least one end of said blade mounting sections;
blade platforms having grooves in radial alignment with said annular groove;
a plurality of plate structures adapted to be disposed and supported between said disc and said blades, and including opposing
inner and outer edges located in said grooves to form an annular array of said plate structures;
a plurality of lock notches formed in an outer wall of said annular groove; and
said plate structures comprising a plate and an elongated locking pointer having an outer end supported on said plate at a
location between said outer wall and said blade platform, and said locking pointer extending radically inwardly toward said
outer wall, and said locking pointer extending axially away from said plate toward said outer wall and having a distal end
which does not extend beyond said inner edge and which is engaged within a respective lock notch to maintain a circumferential
position of said plate structures relative to said disc.
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