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Title: Gas turbine sealing apparatus

Patent ·
OSTI ID:1083472

A sealing apparatus in a gas turbine. The sealing apparatus includes a seal housing apparatus coupled to a disc/rotor assembly so as to be rotatable therewith during operation of the gas turbine. The seal housing apparatus comprises a base member, a first leg portion, a second leg portion, and spanning structure. The base member extends generally axially between forward and aft rows of rotatable blades and is positioned adjacent to a row of stationary vanes. The first leg portion extends radially inwardly from the base member and is coupled to the disc/rotor assembly. The second leg portion is axially spaced from the first leg portion, extends radially inwardly from the base member, and is coupled to the disc/rotor assembly. The spanning structure extends between and is rigidly coupled to each of the base member, the first leg portion, and the second leg portion.

Research Organization:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-05NT42644
Assignee:
Siemens Energy, Inc. (Orlando, FL)
Patent Number(s):
8,388,309
Application Number:
12/611,257
OSTI ID:
1083472
Country of Publication:
United States
Language:
English

References (14)

Device for sealing gas turbine stator blades patent April 2001
Gas turbine of disc-type construction patent July 1977
Turbine cooling for gas turbine engine patent April 1989
Gas turbine with baffle reducing hot gas ingress into interstage disc cavity patent May 2003
Turbomachine rotor assembly with two bladed-discs separated by a spacer patent December 2003
Segmented interstage seal assembly patent December 1989
Gap control system for turbine engines patent June 2007
Apparatus for cooling a gas turbine airfoil patent September 1998
Turbine vane system patent April 2007
Rotor of axial-flow machine patent February 1984
Gas turbine engine sealing arrangement patent November 1998
Seal active clearance control system for gas turbine stationary blade patent November 2000
Rotor Construction patent October 1962
Sealing apparatus for gas turbine patent November 2000

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