Patent US3759038A successfully refreshed from Google Patents.
US3759038A
Expired / Lapsed
US
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Self aligning combustor and transition structure for a gas turbine
Assignee: Westinghouse Electric Corp
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Filing: 1971-12-09
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Granted: 1973-09-18
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Expires: 1991-12-09
Abstract
Abstract Gas turbine combustion apparatus in which the combustor is anchored at its upstream end and the transition member is anchored at its downstream end, the downstream end of the combustor and the upstream end of the transition member being disposed in mutual engagement and alignment and freely slidable relation during thermal expansion by a clevis support structure and sealed at their engaging portions by a slotted twin layer cuff spring.
Inventors
- 👤 A Scalzo
- 👤 Laurin L Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:31
CPC Classifications
F; F01; F01D; F01D9/00; F01D9/02; F01D9/023; F05; F05D; F05D2230/00; F05D2230/60; F05D2230/64; F05D2230/642
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
225 words
A gas turbine comprising casing structure defining a plenum chamber, a first motive expansion stage including a blade ring having a row of stationary blades and a rotor having a row of rotatable blades, at least one fuel combustor disposed within said plenum chamber with its upstream end anchored to said casing structure, and effective to generate hot motive gases, a transition member connected at its upstream end to the downstream end of said combustor and communicating at its downstream end with said first stage, and effective to transmit said gases to said first stage, said transition member having its upstream end portion telescopically engaging the downstream end portion of said combustor in a manner to permit relative axial movement therebetween, said transition member having its downstream end connected to said blade ring in a manner to restrain axial movement, a support structure anchored to said casing structure and slidably supporting said transition member in a manner permitting movement parallel to its axis but restraining movement transverse thereto, and an annular cuff spring interposed between the telescoping end portions of said transition member and said combustor, said cuff spring comprising an inner segmented spring member and an outer segmented spring member, with said segments in peripherally staggered relation with each other to provide a peripheral seal between said transition member and said combustor during operation.
Claim 2
Dependent Claim
225 words
A gas turbine comprising casing structure defining a plenum chamber, a first motive expansion stage including a blade ring having a row of stationary blades and a rotor having a row of rotatable blades, at least one fuel combustor disposed within said plenum chamber with its upstream end anchored to said casing structure, and effective to generate hot motive gases, a transition member connected at its upstream end to the downstream end of said combustor and communicating at its downstream end with said first stage, and effective to transmit said gases to said first stage, said transition member having its upstream end portion telescopically engaging the downstream end portion of said combustor in a manner to permit relative axial movement therebetween, said transition member having its downstream end connected to said blade ring in a manner to restrain axial movement, a support structure anchored to said casing structure and slidably supporting said transition member in a manner permitting movement parallel to its axis but restraining movement transverse thereto, and an annular cuff spring interposed between the telescoping end portions of said transition member and said combustor, said cuff spring comprising an inner segmented spring member and an outer segmented spring member, with said segments in peripherally staggered relation with each other to provide a peripheral seal between said transition member and said combustor during operation.
Claim 3
Dependent Claim
27 words
The structure recited in claim 1 in which one of the segmented spring members extends axially beyond the other and has its free end portions extending radially.
Claim 4
Dependent Claim
65 words
The structure recited in claim 1 in which the cuff spring is connected at one end to one of telescoping portions and has its other end in slidable abutment with the other of said telescoping portions, and one of the telescoping portions having an annular radially extending stop portion in spaced relation with the cuff spring but engagable by the cuff spring during deflection thereof.
Claim 5
Dependent Claim
33 words
The structure recited in claim 1 in which the support structure comprises a yoke member having a pair of spaced arms, and the transition member is disposed in the bight of said arms.
Claim 6
Dependent Claim
45 words
The structure recited in claim 4 in which the support structure further includes a leg portion extending radially inwardly, the casing structure includes a tubular inner casing portion defining the plenum chamber in part, and said leg portion is attached to said inner casing portion.
Claim 7
Dependent Claim
227 words
In a gas turbine power plant comprising an air compressor portion, an axial flow turbine portion, and combustion apparatus for generating hot motive combustion gases for motivating said turbine, said turbine having a blade ring carrying a row of stationary blades and a rotor carrying a row of rotatable blades, inner and outer casing structure defining an annular plenum chamber, said combustion apparatus including an annular array of fuel combustors disposed in said plenum chamber with their upstream end portions attached to said outer casing, each of said combustors having a transition member connected in axially slidable relation at its upstream end to the downstream end of its associated combustor and connected at its downstream end to said blade ring, whereby to conduct the hot motive gases from said combustor to said turbine, a support structure carried by said inner casing and slidably supporting said transition member in a manner permitting movement parallel to its axis, but restraining movement transverse thereto, said inner casing being concentric with the outer casing and having an annular portion for directing the pressurized air from the compressor to the plenum chamber, said support structure comprising a yoke member having a pair of spaced arms and a leg member, said arms receiving the transition member within their bight, and said leg member extending radially inward and being anchored to said annular portion.
Claim 8
Dependent Claim
227 words
In a gas turbine power plant comprising an air compressor portion, an axial flow turbine portion, and combustion apparatus for generating hot motive combustion gases for motivating said turbine, said turbine having a blade ring carrying a row of stationary blades and a rotor carrying a row of rotatable blades, inner and outer casing structure defining an annular plenum chamber, said combustion apparatus including an annular array of fuel combustors disposed in said plenum chamber with their upstream end portions attached to said outer casing, each of said combustors having a transition member connected in axially slidable relation at its upstream end to the downstream end of its associated combustor and connected at its downstream end to said blade ring, whereby to conduct the hot motive gases from said combustor to said turbine, a support structure carried by said inner casing and slidably supporting said transition member in a manner permitting movement parallel to its axis, but restraining movement transverse thereto, said inner casing being concentric with the outer casing and having an annular portion for directing the pressurized air from the compressor to the plenum chamber, said support structure comprising a yoke member having a pair of spaced arms and a leg member, said arms receiving the transition member within their bight, and said leg member extending radially inward and being anchored to said annular portion.
Claim 9
Dependent Claim
55 words
The structure recited in claim 6 wherein the support structure further includes a clevis carried by each of the arms, said clevis having male and female members slidably associated with each other, one of said clevis members being attached to the transition member, the other of said clevis members being attached to the associated arm.
Claim 10
Dependent Claim
53 words
The structure recited in claim 6 in which each transition member has an arcuate mouth portion with circumferentially spaced radial walls at least partly defining an outlet for the motive gases, and said radial walls have radial ribs so arranged that the mouth portions of neighboring transition members are keyed to each other.
Claim 11
Dependent Claim
48 words
The structure recited in claim 8 in which the mouth portion is further provided with radially spaced inner and outer arcuate walls cooperating with the radial walls to define the gas outlet, and said arcuate walls having channel members for securing the mouth portion to the blade ring.
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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |