US3872673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accumulation power station
Assignee: Studsvik Energiteknik AB
•
Filing: 1973-02-01
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Granted: 1975-03-25
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Expires: 1993-02-01
Abstract
Abstract In an accumulation power station comprising an electric motor, an air compressor driven by the motor, a storage space for the compressed air generated by the compressor, an air turbine which is driven during peak-load periods by compressed air from the storage space, and an electric generator driven by the air turbine there is provided a regenerative heat exchanger which accumulates the heat produced when air is compressed while the compressed air storage space is being charged, and which gives off the accumulated heat to the compressed air when the compressed air storage space is being discharged.
Inventors
- 👤 Peter Heinrich Erwin Margen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:50
CPC Classifications
F; F28; F28D; F28D17/00; F02; F02C; F02C6/00; F02C6/14; F02C6/16; F05; F05D; F05D2260/00; F05D2260/20; F05D2260/212; Y; Y02; Y02E; Y02E60/00; Y02E60/16; Y10; Y10S; Y10S415/00; Y10S415/91
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
112 words
Accumulation power station comprising an electric motor, an air compressor driven by the motor, a storage space for the compressed air generated by the compressor, an air turbine which is driven during peak-load periods by compressed air from the storage space, and an electric generator driven by the air turbine, characterized therein by a regenerative heat exchanger which accumulates the heat produced when air is comPressed while the compressed air storage space is being charged, and which gives off the accumulated heat to the compressed air when the compressed air storage space is being discharged, and a cooler for the compressed air arranged between the heat exchanger and the compressed air storer.
Claim 2
Dependent Claim
112 words
Accumulation power station comprising an electric motor, an air compressor driven by the motor, a storage space for the compressed air generated by the compressor, an air turbine which is driven during peak-load periods by compressed air from the storage space, and an electric generator driven by the air turbine, characterized therein by a regenerative heat exchanger which accumulates the heat produced when air is comPressed while the compressed air storage space is being charged, and which gives off the accumulated heat to the compressed air when the compressed air storage space is being discharged, and a cooler for the compressed air arranged between the heat exchanger and the compressed air storer.
Claim 3
Dependent Claim
25 words
Accumulation power station according to claim 1, characterised in that the cooler (5) comprises spray means (9) so that water can be sprayed directly in.
Claim 4
Dependent Claim
26 words
Accumulation power station according to claim 1, characterised in that the cooler (5) has a supply conduit (10) for cooling water from the water store (8).
Claim 5
Dependent Claim
135 words
Accumulation power station comprising an electric motor, an air compressor driven by the motor, a storage space for the compressed air generated by the compressor, an air turbine which is driven during peak-load periods by compressed air from the storage space, and an electric generator driven by the air turbine, characterized therein by a regenerative heat exchanger which accumulates the heat produced when air is compressed while the compressed air storage space is being charged, and which gives off the accumulated heat to the compressed air when the compressed air storage is being discharged, a store of water communicating with the store of compressed air in order to regulate the effective volume of the store of compressed air, and a cooler for the compressed air arranged between the heat exchanger and the compressed air storer.
Claim 6
Dependent Claim
135 words
Accumulation power station comprising an electric motor, an air compressor driven by the motor, a storage space for the compressed air generated by the compressor, an air turbine which is driven during peak-load periods by compressed air from the storage space, and an electric generator driven by the air turbine, characterized therein by a regenerative heat exchanger which accumulates the heat produced when air is compressed while the compressed air storage space is being charged, and which gives off the accumulated heat to the compressed air when the compressed air storage is being discharged, a store of water communicating with the store of compressed air in order to regulate the effective volume of the store of compressed air, and a cooler for the compressed air arranged between the heat exchanger and the compressed air storer.
Claim 7
Dependent Claim
25 words
Accumulation power station according to claim 4, characterised in that the cooler (5) comprises spray means (9) so that water can be sprayed directly in.
Claim 8
Dependent Claim
26 words
Accumulation power station according to claim 4, characterised in that the cooler (5) has a supply conduit (10) for cooling water from the water store (8).
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-24 | 1978-09-23 | 1979-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-24 | 1982-09-23 | 1983-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-24 | 1986-09-23 | 1987-03-25 | $7700.00 | Window Closed / Lapsed |