Shape for a turbine bucket tip shroud

Details Shape for a turbine bucket tip shroud Shape for a turbine bucket tip shroud

2008-04-22

2011-11-15

Kershteyn, Igor (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Rotor having flow confining or deflecting web, shroud or...

Axially extending shroud ring or casing

C416S191000, C416S22300B

Reexamination Certificate

active

08057186

ABSTRACT:
A turbine bucket that may include an airfoil having a tip shroud, the tip shroud having an edge; wherein the edge has a profile substantially in accordance with values of X and Y in a Cartesian coordinate system set forth in Table 1 at points 1-14, wherein X and Y represent distances that may be proportionally scaled by a common multiplier which, once scaled and connected, define the profile of the edge of the tip shroud.

REFERENCES:
patent: 7887295 (2011-02-01), Brittingham et al.
patent: 2005/0013692 (2005-01-01), Snook et al.
patent: 2005/0036890 (2005-02-01), Tomberg et al.
patent: 2005/0106025 (2005-05-01), Snook et al.
patent: 2009/0053047 (2009-02-01), Chiurato et al.
patent: 2009/0136347 (2009-05-01), Brittingham et al.

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