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Patent US4485627A successfully refreshed from Google Patents.
US4485627A
Expired / Lapsed
US
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Solar energy conversion plant
Assignee: United Stirling AB and Co
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Filing: 1983-04-18
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Granted: 1984-12-04
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Expires: 2003-04-18
Abstract
Abstract A solar energy conversion plant is composed of a number of conversion units. Each unit is a hot gas engine coupled to a generator. All hot gas engines are connected to common tube mains one of which contains working gas of high pressure while another contains gas of low pressure. A compressor is arranged to maintain the pressures in the mains and is separately governed.
Inventors
- 👤 Sten-Hakan Almstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:05
CPC Classifications
F; F02; F02G; F02G1/00; F02G1/04; F02G1/043; F02G1/044; F02G1/0445; F02G2244/00; F02G2244/50; F02G2254/00; F02G2254/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A solar energy conversion plant comprising a plurality of solar heated, closed-cycle hot gas engines, each engine being independently operable and being provided with a control system for introducing gas to or removing gas from its working gas charges; a common working gas supply system, said supply system including a high pressure working gas reservoir; a first tube main connected to be supplied working gas by said reservoir; a second tube main, wherein each engine control system is operatively connected to be supplied with high pressure working gas from said first tube main and to dump working gas to said second tube main; and a common, separately driven compressor operatively connected to deliver gas from said second tube main to said high pressure gas reservoir.
Claim 2
Dependent Claim
125 words
A solar energy conversion plant comprising a plurality of solar heated, closed-cycle hot gas engines, each engine being independently operable and being provided with a control system for introducing gas to or removing gas from its working gas charges; a common working gas supply system, said supply system including a high pressure working gas reservoir; a first tube main connected to be supplied working gas by said reservoir; a second tube main, wherein each engine control system is operatively connected to be supplied with high pressure working gas from said first tube main and to dump working gas to said second tube main; and a common, separately driven compressor operatively connected to deliver gas from said second tube main to said high pressure gas reservoir.
Claim 3
Dependent Claim
26 words
The solar energy conversion plant as in claim 1 wherein said first tube main is connected to said high pressure reservoir through a pressure reduction valve.
Claim 4
Dependent Claim
23 words
The solar energy conversion plant as in claim 1 further including a low pressure working gas reservoir connected to said second tube main.
Claim 5
Dependent Claim
23 words
The solar energy conversion plant as in claim 2 further including a low pressure working gas reservoir connected to said second tube main.
References Cited (Backward Citations)
US3559398A
Cited
US4045978A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |