US3740168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tubular encased turbo-machine with axially spaced sealing rings for compartmentizing the compressor and turbine components
Assignee: BBC Brown Boveri AG Switzerland
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Filing: 1971-11-12
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Granted: 1973-06-19
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Expires: 1991-11-12
Abstract
Abstract A tubular encased turbo-machine structure comprises a tubular concrete reinforced casing in which a turbo-machine group is inserted subsequent to its assembly. The various machines of the group such as the compressors and turbine are compartmentized within the casing by means of radially displaceable segmented sealing rings located within the casing, these rings being initially in a retracted state with their inner peripheries essentially flush with the inner surface of the casing to facilitate installation of the assembled turbo-machine group in the casing, and the rings thereafter being displaced radially inward so as to establish a sealing contact with the peripheries of the guide blade carrier components of the several machines and thus compartmentize the interior of the tube so that the several machines of the group are separated each from the other.
Inventors
- 👤 H Hug
- 👤 M Zimmermann
- 👤 P Moser
- 👤 H Schwarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:34
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/24; F01D25/26; F01D25/265; F01D11/00; F01D11/005; F16; F16J; F16J15/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
168 words
A turbular encased turbo-machine structure comprising a tubular casing, a turbo-machine group comprising a plurality of axially spaced and shaft-coupled turbo-machine units such as compressors and turbines operating at different pressures and which are inserted as an assembly in said tubular casing, each said turbo-machine unit including a guide blade carrier and an associated gaseous fluid inlet and outlet, and a plurality of sealing rings interposed respectively between the outer cylindrical peripheral surfaces of the guide blade carriers and the inner surface of said tubular casing to establish individually sealed compartments within said casing for each of said turbo-machine units, each of said sealing rings being radially divided into a plurality of ring segments, and means for actuating said ring segments in a radially inward direction to engage and effect a sealing engagement with the periphery of the guide blade carrier associated therewith, and also in a radially outward direction to a disengaged position enabling said turbomachine group to be inserted in or removed from said tubular casing.
Claim 2
Dependent Claim
168 words
A turbular encased turbo-machine structure comprising a tubular casing, a turbo-machine group comprising a plurality of axially spaced and shaft-coupled turbo-machine units such as compressors and turbines operating at different pressures and which are inserted as an assembly in said tubular casing, each said turbo-machine unit including a guide blade carrier and an associated gaseous fluid inlet and outlet, and a plurality of sealing rings interposed respectively between the outer cylindrical peripheral surfaces of the guide blade carriers and the inner surface of said tubular casing to establish individually sealed compartments within said casing for each of said turbo-machine units, each of said sealing rings being radially divided into a plurality of ring segments, and means for actuating said ring segments in a radially inward direction to engage and effect a sealing engagement with the periphery of the guide blade carrier associated therewith, and also in a radially outward direction to a disengaged position enabling said turbomachine group to be inserted in or removed from said tubular casing.
Claim 3
Dependent Claim
54 words
A turbular encased turbo-machine structure as defined in claim 1 wherein the gaseous fluid ducts for conveying the fluid to and from said inlet and outlets of each turbo-machine unit terminate inside the tubular casing within the respective sealed compartment, and each said inlet and outlet is disposed between two axially spaced sealing rings.
Claim 4
Dependent Claim
33 words
A tubular encased turbo-machine structure as defined in claim 1 wherein the end faces of the ring segments of each sealing ring are in contact with each other and include sealing lips therebetween.
Claim 5
Dependent Claim
38 words
A tubular encased turbo-machine structure as defined in claim 1 wherein said means for actuating the segments of each of said sealing rings is constituted by hydraulic motors the pistons of which are connected to said ring segments.
Claim 6
Dependent Claim
59 words
A tubular encased turbo-machine structure as defined in claim 4 wherein the piston of each hydraulic motor is connected to the ring segments by means of a coupling member actuated by the piston, each said coupling member being constituted by a projection extending from the piston rod into grooves provided respectively in the end faces of adjoining ring segments.
Claim 7
Dependent Claim
64 words
A tubular encased turbo-machine structure as defined in claim 4 and which furtHer includes a ring member structurally integrated in the wall of said tubular casing for supporting each of said sealing rings, the segments of each said ring being received in a groove provided in said ring supporting member, and said ring supporting member also functions as a support for said hydraulic motors.
References Cited (Backward Citations)
US3269677A
Cited
US3658438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |