Patent US3842593A successfully refreshed from Google Patents.
US3842593A
Expired / Lapsed
US
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Closed rankine cycle power plant
Assignee: Ormat Industries Ltd
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Filing: 1973-08-29
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Granted: 1974-10-22
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Expires: 1993-08-29
Abstract
Abstract A closed Rankine cycle power plant wherein the working fluid is a mixture of ortho-dichlorobenzene (ODB) and meta-dichlorobenzene (MODB) in such relative proportions that in the condenser the proportion of ODB to MDB is in the range of from 2:3 to 3:2.
Inventors
- 👤 L Bronicki
- 👤 A Yogev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:56
CPC Classifications
F; F01; F01K; F01K25/00; F01K25/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
134 words
A closed Rankine cycle power plant of the type comprising a boiler for vaporizing a high molecular weight working fluid, a turbine for expanding the vapor and driving a load such as an electrical generator, a condenser for convertinG the turbine exhaust vapors to a liquid at a lower temperature and pressure than that in the boiler, and means for feeding condensed liquid in the condenser into the boiler at a high pressure wherein the working fluid is a mixture of ortho-dichlorobenzene and metadichlorobenzene such that the composition of the liquid in the condenser is in the range 2:3 to 3:2 of ortho-dichlorobenzene and meta-dichlorobenzene when the power plant is in steady state operation at which the composition of liquid in the condenser is the same as the composition of vapor in the boiler.
Claim 2
Dependent Claim
134 words
A closed Rankine cycle power plant of the type comprising a boiler for vaporizing a high molecular weight working fluid, a turbine for expanding the vapor and driving a load such as an electrical generator, a condenser for convertinG the turbine exhaust vapors to a liquid at a lower temperature and pressure than that in the boiler, and means for feeding condensed liquid in the condenser into the boiler at a high pressure wherein the working fluid is a mixture of ortho-dichlorobenzene and metadichlorobenzene such that the composition of the liquid in the condenser is in the range 2:3 to 3:2 of ortho-dichlorobenzene and meta-dichlorobenzene when the power plant is in steady state operation at which the composition of liquid in the condenser is the same as the composition of vapor in the boiler.
Claim 3
Dependent Claim
37 words
A closed Rankine cycle power plant according to claim 1 wherein the mixture of ortho-dichlorobenzene and meta-dichlorobenzene is such that the composition of liquid in the condenser is 1:1 of ortho-dichlorobenzene and meta-dichlorobenzene during steady state operation.
Claim 4
Dependent Claim
27 words
A closed Rankine cycle power plant according to claim 2 wherein the liquid in the boiler is composed of ortho-dichlorobenzene and meta-dichlorobenzene in the ratio of 5:6.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |