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Title: Blade attachment assembly

Patent ·
OSTI ID:1250454

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.

Research Organization:
General Electric Co., Schenectady, NY (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42643
Assignee:
General Electric Company (Schenectady, NY)
Patent Number(s):
9,328,622
Application Number:
13/494,261
OSTI ID:
1250454
Resource Relation:
Patent File Date: 2012 Jun 12
Country of Publication:
United States
Language:
English

References (18)

Cover Plate Assembly for Sealing Spaces Between Turbine Buckets patent June 1964
Turbine rotor with pin mounted ceramic turbine blades patent April 1978
Blade attachment structure for gas turbine rotor patent June 1978
Ceramic rotor blade assembly for a gas turbine engine patent September 1978
Multiple-piece ceramic turbine blade patent March 1979
Device for damping vibrations of mobile turbine blades patent November 1984
Platform assembly for attaching rotor blades to a rotor disk patent June 1993
Ceramic blade attachment system patent April 1995
Ceramic blade attachment system patent July 1995
Pin and roller attachment system for ceramic blades patent July 1995
Ceramic blade attachment system patent December 1996
Blade, turbine disc and hybrid type gas turbine blade patent April 1998
Non-integral balanced coverplate and coverplate centering slot for a turbine patent February 2001
Gas turbine flowpath structure patent August 2006
Apparatus for bucket cover plate retention patent October 2012
Sealing device patent December 2013
Gas turbine having seal assembly with coverplate and seal patent April 2014
Adaptor assembly for coupling turbine blades to rotor disks patent June 2014