US 12,221,899 B2
Methods and apparatuses for blade locking
Ravindra Shankar Ganiger, Bengaluru (IN); Dharmaraj Pachaiappan, Bangalore (IN); Nageswar Rao Ganji, Bengaluru (IN); Arvind Namadevan, Bangalore (IN); Jeffrey D. Carnes, Framingham, MA (US); Charles Eric Lavender, Mason, OH (US); and Steven Mark Ballman, West Chester, OH (US)
Assigned to General Electric Company, Evendale, OH (US)
Filed by General Electric Company, Schenectady, NY (US)
Filed on Jun. 15, 2023, as Appl. No. 18/210,347.
Prior Publication US 2024/0418092 A1, Dec. 19, 2024
Int. Cl. F01D 5/32 (2006.01); F01D 5/30 (2006.01)
CPC F01D 5/326 (2013.01) [F01D 5/3007 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A lock lug for inhibiting movement of a plurality of rotor blades within a rim slot along a circumference of a rotor disk, comprising:
a body sized and configured to be received within the rim slot of the rotor disk, the body comprising:
a first sidewall;
a second sidewall opposite the first sidewall;
a bottom that extends from the first sidewall to the second sidewall connecting the first and second sidewalls forming a dovetail receiving aperture configured to receive a dovetail of a rotor blade; and
an engagement mechanism comprising a spring connected to one or more of the first sidewall, second sidewall and bottom, the engagement mechanism is configured to extend from the body and having (i) a retracted configuration configured to allow entry and exit of a dovetail of at least one or more of the plurality of rotor blades into and out of the dovetail receiving aperture and (ii) an extended configuration configured to block the dovetail from entering the dovetail receiving aperture.