US5074748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal assembly for segmented turbine engine structures
Assignee: General Electric Co
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Filing: 1990-07-30
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Granted: 1991-12-24
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Expires: 2010-07-30
Abstract
Abstract A relatively stationary segmented turbine engine shroud, nozzle or frame assembly is sealed against the passage of cooling air into the exhaust gas flowpath by a plurality of spline seals which cooperate with an annular stationary brush seal. The spline seals provide sealing between axially extending confronting edges of adjacent segments while the brush seal provides continuous circumferential sealing around the segments and spline seals.
Inventors
- 👤 Michael P. Hagle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:27
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/023; F01D11/00; F01D11/005; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3284; F16J15/3288
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
76 words
A relatively static seal assembly for a turbine engine, comprising: an annular segmented turbine engine assembly comprising a plurality of arcuate segments arranged in a circumferentially spaced array; first seal means provided between said segments; and brush seal means at least partially engaging said first seal means to form a seal therewith, said brush seal means being arranged to maintain said seal during thermal growth variations between said first seal means and said brush seal means.
Claim 2
Dependent Claim
76 words
A relatively static seal assembly for a turbine engine, comprising: an annular segmented turbine engine assembly comprising a plurality of arcuate segments arranged in a circumferentially spaced array; first seal means provided between said segments; and brush seal means at least partially engaging said first seal means to form a seal therewith, said brush seal means being arranged to maintain said seal during thermal growth variations between said first seal means and said brush seal means.
Claim 3
Dependent Claim
25 words
The seal assembly of claim 1, wherein said first seal means comprises a plurality of axially-extending spline seals each formed of a thin metal strip.
Claim 4
Dependent Claim
16 words
The seal assembly of claim 1, wherein said annular segmented turbine assembly comprises a turbine nozzle.
Claim 5
Dependent Claim
17 words
The seal assembly of claim 1, wherein said annular segmented turbine assembly comprises a turbine shroud assembly.
Claim 6
Dependent Claim
29 words
The seal assembly of claim 1, wherein said arcuate segments comprise sealing surface portions and wherein said brush seal means engages said sealing surface portions of said arcuate segments.
Claim 7
Dependent Claim
16 words
The seal assembly of claim 3, wherein said sealing surface portions comprise as cast surface portions.
Claim 8
Dependent Claim
20 words
The seal assembly of claim 1, wherein said arcuate segments comprise seal support means for supporting said second seal means.
Claim 9
Dependent Claim
20 words
The seal assembly of claim 7, wherein said seal support means comprises radial lip means provided on said arcuate segments.
Claim 10
Dependent Claim
31 words
The seal assembly of claim 1, further comprising stationary annular frame means disposed adjacent to said seal assembly and wherein said second seal means is sealingly mounted to said frame means.
Claim 11
Dependent Claim
22 words
The seal assembly of claim 2, wherein each of said spline seals comprises an axial end portion contacting said second seal means.
Claim 12
Dependent Claim
19 words
The seal assembly of claim 10, wherein said axial end portion terminates in contact with said second seal means.
Claim 13
Dependent Claim
19 words
The seal assembly of claim 10, wherein said axial end portion extends beneath and past said second seal means.
Claim 14
Dependent Claim
52 words
A seal assembly for a turbine engine, comprising: an annular segmented turbine engine assembly comprising a plurality of arcuate segments arranged in a circumferentially spaced array; first seal means provided between said segments; and a one-piece annular brush seal at least partially engaging said first seal means to form a seal therewith.
Claim 15
Dependent Claim
52 words
A seal assembly for a turbine engine, comprising: an annular segmented turbine engine assembly comprising a plurality of arcuate segments arranged in a circumferentially spaced array; first seal means provided between said segments; and a one-piece annular brush seal at least partially engaging said first seal means to form a seal therewith.
Claim 16
Dependent Claim
67 words
A seal assembly for a turbine engine having a frame element, comprising: an annular segmented turbine engine assembly spaced apart from said frame element and comprising a plurality of arcuate segments arranged in a circumferentially spaced array; first seal means mounted between said segments; and brush seal means mounted to said frame element and at least partially engaging said first seal means to form a seal therewith.
Claim 17
Dependent Claim
67 words
A seal assembly for a turbine engine having a frame element, comprising: an annular segmented turbine engine assembly spaced apart from said frame element and comprising a plurality of arcuate segments arranged in a circumferentially spaced array; first seal means mounted between said segments; and brush seal means mounted to said frame element and at least partially engaging said first seal means to form a seal therewith.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |