US3880574A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic combustion liner
Assignee: Motors Liquidation Co
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Filing: 1974-04-15
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Granted: 1975-04-29
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Expires: 1994-04-15
Abstract
Abstract A liner for a gas turbine combustion apparatus has a ceramic side wall made up of a number of axially-aligned rings. These are retained between a metal dome and a metal outlet fitting which are connected together by tie rods and maintained at proper axial spacing by sleeves disposed around the tie rods. A T-section metal ring is disposed between each adjacent pair of liner wall segments to align the segments with each other. A resilient compressive connection is disposed between the upstream ring and the dome. These arrangements accommodate differential thermal expansion of the metal and ceramic parts of the liner.
Inventors
- 👤 John A Irwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:26
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/007
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
121 words
A combustion liner for a combustion apparatus comprising, in combination, a dome defining the upstream wall of the liner; a plural number of aligned ceramic wall rings defining the side wall of the liner, one ring being adjacent to the dome; an outlet fitting abutting the farthest downstream wall ring; means for aligning the wall rings with the dome and outlet fitting; means providing a resilient compressive connection in the side wall between the dome and the outlet fitting; and means independent of the wall rings interconnecting the dome and the outlet fitting including tension means connected between the dome and outlet fitting and struts engaging the dome and outlet fitting to establish the spacing between the dome and outlet fitting.
Claim 2
Dependent Claim
121 words
A combustion liner for a combustion apparatus comprising, in combination, a dome defining the upstream wall of the liner; a plural number of aligned ceramic wall rings defining the side wall of the liner, one ring being adjacent to the dome; an outlet fitting abutting the farthest downstream wall ring; means for aligning the wall rings with the dome and outlet fitting; means providing a resilient compressive connection in the side wall between the dome and the outlet fitting; and means independent of the wall rings interconnecting the dome and the outlet fitting including tension means connected between the dome and outlet fitting and struts engaging the dome and outlet fitting to establish the spacing between the dome and outlet fitting.
Claim 3
Dependent Claim
128 words
A combustion liner for a combustion apparatus comprising, in combination, a dome defining the upstream wall of the liner and providing support means for the liner; a plural number of aligned ceramic wall rings defining the side wall of the liner, one ring being adjacent to the dome; an outlet fitting abutting the farthest downstream wall ring; means for aligning the wall rings with the dome and outlet fitting; means providing a resilient compressive connection in the side wall between the dome and the outlet fitting; and means independent of the wall rings interconnecting the dome and the outlet fitting including tension means connected between the dome and outlet fitting and struts engaging the dome and outlet fitting to establish the spacing between the dome and outlet fitting.
Claim 4
Dependent Claim
128 words
A combustion liner for a combustion apparatus comprising, in combination, a dome defining the upstream wall of the liner and providing support means for the liner; a plural number of aligned ceramic wall rings defining the side wall of the liner, one ring being adjacent to the dome; an outlet fitting abutting the farthest downstream wall ring; means for aligning the wall rings with the dome and outlet fitting; means providing a resilient compressive connection in the side wall between the dome and the outlet fitting; and means independent of the wall rings interconnecting the dome and the outlet fitting including tension means connected between the dome and outlet fitting and struts engaging the dome and outlet fitting to establish the spacing between the dome and outlet fitting.
Claim 5
Dependent Claim
126 words
A combustion liner for a combustion apparatus comprising, in combination, a dome defining the upstream wall of the liner; a plural number of aligned ceramic wall rings defining the side wall of the liner, one ring being adjacent to the dome; an outlet fitting abutting the farthest downstream wall ring; means for aligning the wall rings with the dome and outlet fitting; means providing a resilient compressive connection in the side wall between the dome and the outlet fitting; and means independent of the wall rings interconnecting the dome and the outlet fitting including tie rods connected between the dome and outlet fitting and hollow struts enclosing the tie rods engaging the dome and outlet fitting to establish the spacing between the dome and outlet fitting.
Claim 6
Dependent Claim
126 words
A combustion liner for a combustion apparatus comprising, in combination, a dome defining the upstream wall of the liner; a plural number of aligned ceramic wall rings defining the side wall of the liner, one ring being adjacent to the dome; an outlet fitting abutting the farthest downstream wall ring; means for aligning the wall rings with the dome and outlet fitting; means providing a resilient compressive connection in the side wall between the dome and the outlet fitting; and means independent of the wall rings interconnecting the dome and the outlet fitting including tie rods connected between the dome and outlet fitting and hollow struts enclosing the tie rods engaging the dome and outlet fitting to establish the spacing between the dome and outlet fitting.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-04-28 | 1978-10-28 | 1979-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-28 | 1982-10-28 | 1983-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-28 | 1986-10-28 | 1987-04-29 | $7700.00 | Window Closed / Lapsed |