US 2010/0074732 A1 · Gas Turbine Sealing Apparatus

Abstract

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.

Claims20

Dependent claims

Sealing apparatus in a gas turbine comprising forward and aft rows of rotatable blades coupled to a disc/rotor assembly and a row of stationary vanes positioned between the forward and aft rows of rotatable blades, the sealing apparatus comprising:

seal housing apparatus coupled to the disc/rotor assembly so as to be rotatable with the disc/rotor assembly during operation of the gas turbine, said seal housing apparatus comprising:
a base member extending generally axially between the forward and aft rows of rotatable blades and positioned adjacent to the row of stationary vanes;
a first leg portion extending radially inwardly from said base member, said first leg portion coupled to the disc/rotor assembly;
a second leg portion axially spaced from said first leg portion, said second leg portion extending radially inwardly from said base member and being coupled to said disc/rotor assembly;
and
spanning structure extending between and rigidly coupled to each of said base member, said first leg portion, and said second leg portion.

3 more elements

A gas turbine comprising:

forward and aft rows of rotatable blades coupled to a disc/rotor assembly;
a row of stationary vanes positioned between said forward and aft rows of rotatable blades, each of said vanes comprising an inner diameter platform having first sealing structure;
and
rotatable sealing apparatus comprising seal housing apparatus coupled to said disc/rotor assembly, said seal housing apparatus comprising:
a base member extending generally axially between the forward and aft rows of rotatable blades and positioned adjacent to the row of stationary vanes, said base member having second sealing structure adapted to cooperate with said first sealing structure to prevent leakage through a gap between said row of stationary vanes and said rotatable sealing apparatus;
a first leg portion extending radially inwardly from said base member, said first leg portion coupled to the disc/rotor assembly;
a second leg portion axially spaced from said first leg portion, said second portion extending radially inwardly from said base member and being coupled to said disc/rotor assembly;
and
spanning structure extending between and coupled to each of said base member, said first leg portion, and said second leg portion.

6 more elements

Dependencies are inferred from the claim text.

Gas Turbine Sealing Apparatus

Life of this patent

Gas Turbine Sealing Apparatus

Life of this patent

Abstract

Claims20