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Blade attachment assembly

United States Patent

9,328,622
May 3, 2016
View the Complete Patent at the US Patent & Trademark Office
An assembly and method for affixing a turbomachine rotor blade to a rotor wheel are disclosed. In an embodiment, an adaptor member is provided disposed between the blade and the rotor wheel, the adaptor member including an adaptor attachment slot that is complementary to the blade attachment member, and an adaptor attachment member that is complementary to the rotor wheel attachment slot. A coverplate is provided, having a coverplate attachment member that is complementary to the rotor wheel attachment slot, and a hook for engaging the adaptor member. When assembled, the coverplate member matingly engages with the adaptor member, and retains the blade in the adaptor member, and the assembly in the rotor wheel.
Garcia-Crespo; Andres Jose (Greenville, SC), Delvaux; John McConnell (Fountain Inn, SC), Miller; Diane Patricia (Irmo, SC)
General Electric Company (Schenectady, NY)
13/ 494,261
20140112794
June 12, 2012
GOVERNMENT LICENSE RIGHTS This invention was made with Government support under contract number DE-FC26-05NT42643 awarded by the Department of Energy. The government has certain rights in the invention.