Fluid reaction surfaces (i.e. – impellers) – Unsymmetrical impeller or dissimilar working members
Reexamination Certificate
2009-03-26
2011-10-25
Sarkar, Asok (Department: 2891)
Fluid reaction surfaces (i.e., impellers)
Unsymmetrical impeller or dissimilar working members
C416S234000, C416S500000, C415S119000
Reexamination Certificate
active
08043063
ABSTRACT:
A frequency mistuned integrally bladed rotor (IBR) for a gas turbine engine comprises a hub and a circumferential row of blades of varying frequency projecting integrally from the hub. Each blade in the row alternate with another blade having a different pressure surface definition but similar suction surface, leading edge and trailing edge definitions.
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Fazari Edward
Heikurinen Kari
Kelly Frank
Wu Yuhua
Norton Rose OR LLP
Pratt & Whitney Canada Corp.
Sarkar Asok
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