Gas turbine tip shroud rails

Details Gas turbine tip shroud rails Gas turbine tip shroud rails

2007-08-14

2007-08-14

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Between blade edge and static part

C415S173600

Reexamination Certificate

active

11006984

ABSTRACT:
A tip shroud rail for a tip shroud of at least one turbine rotor blade, the tip shroud rail comprising a base integrally attached to the tip shroud, a top distally positioned from the base, an upstream surface, and a downstream surface, wherein the tip shroud rail has a height, h, as measured from the base to the top, and a width, w, as measured from the upstream surface to the downstream surface, wherein the width, w, of the tip shroud rail, as measured at the top, is greater than the width, w, of the tip shroud rail, as measured at one-half the height, h/2, of the tip shroud rail.

REFERENCES:
patent: 5201850 (1993-04-01), Lenhardt et al.
patent: 6102655 (2000-08-01), Kreitmeier
patent: 6171052 (2001-01-01), Aschenbruck et al.
patent: 6962484 (2005-11-01), Brandl et al.
patent: 2003/0194322 (2003-10-01), Brandl et al.
patent: 10179 (1912-06-01), None
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patent: 1413712 (2004-04-01), None
patent: 933618 (1963-08-01), None
Heinrich Holzer;Arrangement for Diminishing Clearance Losses in Turbines and Pumps for Liquids and Elastic Fluids; No. 10, 179 A.D. 1912; Jun. 20, 1912; Love & Malcomson, Ltd.; GB.

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