Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between blade edge and static part
Reexamination Certificate
2006-02-21
2006-02-21
Nguyen, Hoang (Department: 3748)
Rotary kinetic fluid motors or pumps
Bearing, seal, or liner between runner portion and static part
Between blade edge and static part
C415S173400, C415S173500, C416S189000, C416S190000
Reexamination Certificate
active
07001144
ABSTRACT:
A bucket tip shroud in a gas turbine includes a seal rail having a cutter tooth at one end. Bucket tip shroud creep rate can be reduced by removing the cutter tooth from the bucket tip shroud seal rail after use or with a pre-groove honeycomb shroud. Preferably, the remaining geometry matches a geometry of the seal rail within a predetermined tolerance.
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Berry Robert R.
Fernandez Emilio
Kuang Hui
Mohr Pat
Urban John P.
General Electric Company
Nguyen Hoang
Nixon & Vanderhye P.C.
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