Claims
- 1. A turboexpander comprising
- a wheel including a hub, first vanes extending from the hub on a first side thereof, a shroud on the first vanes at a first side of the shroud and second vanes extending from the shroud on a second side of the shroud, the wheel defining a first set of channels between the first vanes and a second set of channels between the second vanes;
- a housing about the wheel, the housing including a first inlet to the first channel, a second inlet to the second channel, a first outlet to the first channel, a second outlet to the second channel;
- a first adjustable nozzle at the first inlet;
- a second adjustable nozzle at the second inlet;
- a transfer passage between the first outlet and the second inlet, the inlets being about the periphery of the wheel and the outlets being axially of the wheel.
- 2. The turboexpander of claim 1 further comprising
- a heat exchanger with a first side in communication with the first inlet and a second side in communication with the second outlet.
- 3. The turboexpander of claim 1 further comprising
- a heat exchanger in the transfer passage between the first outlet and the second inlet.
- 4. The turboexpander of claim 1 further comprising
- a knock out drum in the transfer passage between the first outlet and the second inlet.
- 5. A turboexpander comprising
- a wheel including a hub, first vanes extending from the hub on a first side thereof, a shroud on the first vanes at a first side of the shroud and second vanes extending from the shroud on a second side of the shroud, the wheel defining a first set of channels between the first vanes and a second set of channels between the second vanes;
- a housing about the wheel, the housing including a first inlet to the first channel, a second inlet to the second channel, a first outlet to the first channel, a second outlet to the second channel;
- a first adjustable nozzle at the first inlet;
- a second adjustable nozzle at the second inlet;
- a transfer passage between the first outlet and the second inlet, the inlets being about the periphery of the wheel and the outlets being axially of the wheel;
- a first heat exchanger with a first side in communication with the first inlet and a second side in communication with the second outlet;
- a second heat exchanger in the transfer passage between the first outlet and the second inlet.
- 6. The turboexpander of claim 5 further comprising
- a knock out drum in the transfer passage between the first outlet and the second inlet.
CROSS REFERENCE TO RELATED APPLICATIONS
This application is a continuation of application Ser. No. 08/440,045, filed May 12, 1995, now U.S. Pat. No. 5,545,006.
US Referenced Citations (11)
Foreign Referenced Citations (2)
Number |
Date |
Country |
155337 |
Nov 1904 |
DEX |
144384 |
Mar 1931 |
CHX |
Continuations (1)
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Number |
Date |
Country |
Parent |
440045 |
May 1995 |
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