Methods and apparatus for assembling rotatable machines

Fluid reaction surfaces (i.e. – impellers) – With measuring – testing – signalling or inspection means

Reexamination Certificate

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C416S144000, C416S21900R, C029S889220

Reexamination Certificate

active

07090464

ABSTRACT:
A method and apparatus for ordering blades in a rotatable machine is provided. The machine includes a plurality of blades that extend radially outwardly from a rotor. The method includes determining a moment weight of each blade in a row of blades, determining a geometric parameter of each blade in the same row of blades, and determining a mapping order of each blade using the moment weight and the geometric parameter. The apparatus includes a computer system that includes a software product code segment for minimizing imbalance in a bladed rotor wherein the segment is configured to receive a moment weight value for each blade to be installed in said rotor, receive a geometric parameter value for each blade to be installed in said rotor, calculate a blade location on the rotor based on the received values, and generate a blade map based on the calculated location.

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European Search Report; United Kingdom; Sep. 12, 2005; Examiner Jake Collins; Application No. GB0513952-2; Reference 13DV149842/10809; 3 pgs.

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