Rotary kinetic fluid motors or pumps – With passage in blade – vane – shaft or rotary distributor...
Reexamination Certificate
2005-02-08
2005-02-08
Lopez, F. Daniel (Department: 3745)
Rotary kinetic fluid motors or pumps
With passage in blade, vane, shaft or rotary distributor...
C416S09700R, C416S234000
Reexamination Certificate
active
06851924
ABSTRACT:
A crack-resistant vane segment assembly member for an industrial turbine engine is disclosed. The vane segment includes at least one internally-cooled body portion and inner and outer shroud portions. The body portions include end regions characterized by blending and transition zones that ensure heat is transferred at a non-crack-inducing rate from the shroud portions to the body portions. The vane segment assembly also includes a cooling arrangement that reduces the impact of thermal gradient-induced stresses acting at the interface between the body portions and shroud portions. The cooling arrangement cooperates with the transition and blending zones to produce synergistically-enhanced crack resistance properties.
REFERENCES:
patent: 6132169 (2000-10-01), Manning et al.
patent: 6190128 (2001-02-01), Fukuno et al.
Day W. David
Flannery Kelly M.
Mazzola Stefan
Nickols Keith L.
Rogers Friedrich
Lopez F. Daniel
Siemens Westinghouse Power Corporation
White Dwayne J
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