Title:
IMPROVED TURBOMACHINE ROTOR ASSEMBLY
Document Type and Number:
Japanese Patent JP2021181781
Kind Code:
A
Abstract:
To provide a rotor assembly, a turbomachine, and a method of installing a plurality of rotor blades in a rotor assembly.SOLUTION: A rotor assembly includes a rotor 34 having a dovetail slot. The dovetail slot includes a plurality of recesses and a first radially innermost surface 210. A rotor blade includes an airfoil extending radially outward and a dovetail 32 extending radially inward from a platform. The dovetail includes a plurality of projections extending in opposite directions and received by the plurality of recesses. A second radially innermost surface 46 defines a groove from a leading edge surface 25 to a trailing edge surface 27. A shim 52 is positioned within the groove and between the first radially innermost surface of the dovetail slot and the second radially innermost surface of the dovetail. The shim extends at least partially radially along both of the leading edge surface and the trailing edge surface to secure the rotor blade within the dovetail slot during various operating conditions of a turbomachine.SELECTED DRAWING: Figure 16
Inventors:
BURDGICK STEVEN S
JOHN LIGOS
JOHN LIGOS
Application Number:
JP2021071476A
Publication Date:
November 25, 2021
Filing Date:
April 20, 2021
Export Citation:
Assignee:
GENERAL ELECTRIC CO GE
International Classes:
F01D5/30; F01D25/00
Attorney, Agent or Firm:
Hirokazu Ogura
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