US3785128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansion turbine separator
Assignee: Atlas Copco AB
•
Filing: 1971-07-06
•
Granted: 1974-01-15
•
Expires: 1991-07-06
Abstract
Abstract An expansion turbine, especially for the work expansion of lowtemperature liquefiable gases, which comprises around the axis of the rotor a liquid-collecting chamber, communicating with the gas-outflow chamber, provided with an outlet through which the liquefied gas can be led after it is centrifugally collected along the annular walls of this chamber.
Inventors
- 👤 H Redemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
F; F01; F01D; F01D15/00; F01D15/005; F25; F25J; F25J1/00; F25J1/02; F25J1/0243; F25J1/0257; F25J2240/00; F25J2240/02
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
191 words
An expansion turbine for the substantially adiabatic expansion of a liquefied gas to at least partially liquefy same, comprising a housing formed with a compressed -gas chamber having an inlet and an expanding-gas chamber; a radial-passage turbine rotor journaled for rotation in said housing extending into the expanding gas chamber and having a peripheral portion; nozzle means communicating with said compressed-gas chamber positioned about the peripheral portion of the rotor for training jets of liquefied gas upon the periphery of said rotor at one end of said expanding-gas chamber; and means forming an annular liquidcollecting compartment inwardly axially offset from said compressed-gas chamber and collecting liquid cast outwardly by said rotor and separating said liquid from gas within said expanding-gas chamber, a central tubular portion of said housing extending axially into said expanding-gas chamber from said other end and forming therewithin an axial outlet of a diameter less than that of said expanding-gas chamber and defining with said rotor a principal gas-flow directIon from said inlet axially to said outlet with a flow cross-section increasing in said direction, said liquid-collecting compartment being formed around said tubular portion including a liquid outlet.
Claim 2
Dependent Claim
191 words
An expansion turbine for the substantially adiabatic expansion of a liquefied gas to at least partially liquefy same, comprising a housing formed with a compressed -gas chamber having an inlet and an expanding-gas chamber; a radial-passage turbine rotor journaled for rotation in said housing extending into the expanding gas chamber and having a peripheral portion; nozzle means communicating with said compressed-gas chamber positioned about the peripheral portion of the rotor for training jets of liquefied gas upon the periphery of said rotor at one end of said expanding-gas chamber; and means forming an annular liquidcollecting compartment inwardly axially offset from said compressed-gas chamber and collecting liquid cast outwardly by said rotor and separating said liquid from gas within said expanding-gas chamber, a central tubular portion of said housing extending axially into said expanding-gas chamber from said other end and forming therewithin an axial outlet of a diameter less than that of said expanding-gas chamber and defining with said rotor a principal gas-flow directIon from said inlet axially to said outlet with a flow cross-section increasing in said direction, said liquid-collecting compartment being formed around said tubular portion including a liquid outlet.
Claim 3
Dependent Claim
17 words
The expansion turbine defined in claim 1 wherein said liquid-collecting compartment is and coaxial with said rotor.
Claim 4
Dependent Claim
33 words
The expansion turbine defined in claim 2 wherein said turbine rotor is of the radial-expansion type and another annular liquid-collecting compartment is disposed between said nozzle means and the periphery of said rotor.
Claim 5
Dependent Claim
26 words
The expansion turbine defined in claim 2 wherein said rotor is formed with channels traversed by the expanding fluid and maintaining acceleration thereof against said rotor.
Claim 6
Dependent Claim
103 words
The expansion turbine defined in claim 2 wherein said rotor is of the radial-expansion type and is provided with a disk portion forming inwardly widening channels opening along said periphery of said rotor, said nozzle means including an array of nozzles surrounding said periphery and trained inwardly thereagainst, said expanded-gas chamber being of Laval-nozzle shape axially ahead of said rotor and widening in the direction of said outlet, said outlet being defined centrally in said expanded-gas chamber by said wall and said compartment being formed outwardly of said wall and being provided with a radial port for discharge of the liquid collected thereby.
Claim 7
Dependent Claim
47 words
The expansion turbine defined in claim 2 wherein said compartment is formed with a wall outwardly of said rotor and in the path of the centrifugally discharged liquid while being provided with a port at a lowermost portion of said wall for draining liquid from said compartment.
References Cited (Backward Citations)
US2291656A
Cited
US2897917A
Cited
SU136185A1
Cited
GB964834A
Cited
US3380711A
Cited
US3552878A
Cited
US3546881A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |