Patent US3742704A successfully refreshed from Google Patents.
US3742704A
Expired / Lapsed
US
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Combustion chamber support structure
Assignee: Westinghouse Electric Corp
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Filing: 1971-07-13
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Granted: 1973-07-03
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Expires: 1991-07-13
Abstract
Abstract A support structure for the upstream portion of a combustion chamber. The combustion chamber includes a conically shaped collar portion having a circumferential groove on its inner diameter surface. A plurality of axial slots extend from the upstream surface of the collar to the groove. On the downstream portion of a fuel injector structure is a plurality of radially extending protuberances which are inserted through the corresponding axial slots in the collar into the annular groove. The combustion chamber is rotated and the housing and the combustion chamber are axially locked relative to each other.
Inventors
- 👤 R Adelizzi
- 👤 J Laurelli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:47
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/60
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
168 words
In a gas turbine comprising an annular outer casing having a combustion portion, at least one combustion chamber disposed in said combustion portion, a fuel injection member, means to support said combustion chamber within the combustion portion, said fuel injection member having a plurality of radially extending first protuberances at its downstream end, a circumferential groove upstream of the first protuberances, and a plurality of first slots extending generally axially from the downstream end of the member between said protuberances to said groove, said combustion chamber having a plurality of radially extending second protuberances at its upstream end, a circumferential groove downstream of said second protuberances, and a plurality of second slots extending generally axially from the upstream end of the combustion chamber between said second protuberances to said last-mentioned groove, said protuberances being insertable through said slots into the grooves, whereby said combustion chamber is locked in the generally axial direction of said outer casing upon relative rotation of the fuel injection member and the combustion chamber.
Claim 2
Dependent Claim
168 words
In a gas turbine comprising an annular outer casing having a combustion portion, at least one combustion chamber disposed in said combustion portion, a fuel injection member, means to support said combustion chamber within the combustion portion, said fuel injection member having a plurality of radially extending first protuberances at its downstream end, a circumferential groove upstream of the first protuberances, and a plurality of first slots extending generally axially from the downstream end of the member between said protuberances to said groove, said combustion chamber having a plurality of radially extending second protuberances at its upstream end, a circumferential groove downstream of said second protuberances, and a plurality of second slots extending generally axially from the upstream end of the combustion chamber between said second protuberances to said last-mentioned groove, said protuberances being insertable through said slots into the grooves, whereby said combustion chamber is locked in the generally axial direction of said outer casing upon relative rotation of the fuel injection member and the combustion chamber.
Claim 3
Dependent Claim
81 words
The structure recited in claim 1 wherein the first protuberances are insertable through the second slots into the groove in the combustion chamber member, the second protuberances are insertable through the first slots into the groove in the fuel injection member, the first protuberances being rotatable in the groove in the combustion chamber member and the second protuberances being rotatable in the groove in the fuel injection member to lock the members relative to each other in a generally axial direction.
Claim 4
Dependent Claim
53 words
The structure recited in claim 1 wherein an annular ledge portion extends radially from the fuel injection member, said ledge portion being upstream of the groove in the injection member, said ledge portion abutting the adjacent surface of the upstream portion of the combustion chamber member to form a seal between the members.
Claim 5
Dependent Claim
32 words
The structure recited in claim 1 wherein the groove on the combustion chamber member faces the fuel injection member and the groove on the fuel injection member faces the combustion chamber member.
Claim 6
Dependent Claim
36 words
The structure recited in claim 1 wherein the groove on the combustion chamber member is on the radially inner surface thereof, and the groove on the fuel injection member is on the radially outer surface thereof.
References Cited (Backward Citations)
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Cited
US2355896A
Cited
US2555965A
Cited
US2778192A
Cited
US2811832A
Cited
US2801520A
Cited
US3657883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |