US3797516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System for controlling the gas pressure in a closed gas recirculation installation
Assignee: Forschungszentrum Jülich
•
Filing: 1971-09-13
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Granted: 1974-03-19
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Expires: 1991-09-13
Abstract
Abstract A system for controlling a closed gas-circulation installation, such as a gas-cooled nuclear reactor connected with a gas turbine for driving an electric generator, in which a bank or battery of pressure accumulators can be successively connected with the high-pressure side of the installation by individually set pressure-responsive valves for successive charging to different pressure levels when a charging valve common to the manifold of the accumulators is operated. When a discharging valve is operated, the manifold is connected to the low-pressure side of the installation and the accumulators successively discharge in stages. The system is used to control the rate of operation or to compensate for variations in the rate of operation of the turbine.
Inventors
- 👤 S Forster
- 👤 K Schneider
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:13
CPC Classifications
F; F02; F02C; F02C9/00; F02C9/16; F02C9/24; G; G21; G21D; G21D1/00; G21D1/02; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10T; Y10T137/00; Y10T137/6416; Y10T137/6579; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86043
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
94 words
A system for controlling the gas pressure of an installation having a closed gas-circulating path including an energy generator and a gas turbine and provided with a high-pressure line, a charging valve connecting said pressure line to said high-pressure side and a discharging valve for connecting said pressure line to said low-pressure side, a battery of pressure accumulators each connected to said pressure line, and a respective pressure-responsive valve connecting each of said pressure accumulators with said pressure line and operable at successive stepped pressure levels for charging and discharging said accumulators in succession.
Claim 2
Independent Claim
94 words
A system for controlling the gas pressure of an installation having a closed gas-circulating path including an energy generator and a gas turbine and provided with a high-pressure line, a charging valve connecting said pressure line to said high-pressure side and a discharging valve for connecting said pressure line to said low-pressure side, a battery of pressure accumulators each connected to said pressure line, and a respective pressure-responsive valve connecting each of said pressure accumulators with said pressure line and operable at successive stepped pressure levels for charging and discharging said accumulators in succession.
Claim 3
Dependent Claim
25 words
The system defined in claim 1, further comprising gas-cooling means between said high-pressure side and said battery for reducing the temperature of gases charged thereto.
Claim 4
Dependent Claim
51 words
The system defined in claim 1 wherein each of said accumulators is provided with pressurizing means, said pressurizing means including a conduit communicating with the respective accumulator at a low point thereof for supplying to said accumulator a fluid of a higher density than that of the gas traversing said path.
Claim 5
Dependent Claim
14 words
The system defined in claim 1 wherein said accumulators are all of equal volume.
Claim 6
Dependent Claim
24 words
The system defined in claim 1 wherein each of said pressure-responsive valves includes a pressure sensor responsive to the pressure within the respective accumulator.
Claim 7
Dependent Claim
57 words
The system defined in claim 5 wherein said pressure-responsive valves are so constructed and arranged that said accumulators are charged with gas from said path in succession each at a pressure level only slightly below that at said high-pressure side and discharge in succession each at a pressure only slightly above that prevalent at said low-pressure side.
Claim 8
Dependent Claim
51 words
The system defined in claim 1 wherein each of said accumulators is provided with a membrane dimensioned to hug the wall of the accumulator and sealingly subdividing same into a compartment communicating with said pressure line and a further compartment, and means for charging said other compartment with a pressurizing fluid.
Claim 9
Dependent Claim
30 words
The system defined in claim 7 wherein each of said accumulators is provided with a respective plate overlying the conduits and movable limitedly within said accumulators for supporting said membranes.
Claim 10
Dependent Claim
12 words
The system defined in claim 8 wherein said accumulators are generally spherical.
Claim 11
Independent Claim
159 words
A system for controlling the gas pressure of an installation having a closed gas-circulating path with a high-pressure side and a low-pressure side, said system comprising a pressure line, a charging valve connecting said pressure line to said high-pressure side and a discharging valve for connecting said pressure line to said low-pressure side, a battery of pressure accumulators each connected to said pressure line, a respective pressure-responsive valve connecting each of said pressure accumulators with said pressure line and operable at successive pressure levels for charging and discharging said accumulators in succession, said installation including a chamber and means for cutting same off from said path, said battery having a high-pressure accumulator at a high--pressure side thereof, a first valve connecting said high-pressure accumulator with said pressure line; a second valve connecting said high-pressure side of said path; a compressor connected between said line and said high-pressure accumulator; and a third valve between said compressor and said high-pressure accumulator.
Claim 12
Independent Claim
159 words
A system for controlling the gas pressure of an installation having a closed gas-circulating path with a high-pressure side and a low-pressure side, said system comprising a pressure line, a charging valve connecting said pressure line to said high-pressure side and a discharging valve for connecting said pressure line to said low-pressure side, a battery of pressure accumulators each connected to said pressure line, a respective pressure-responsive valve connecting each of said pressure accumulators with said pressure line and operable at successive pressure levels for charging and discharging said accumulators in succession, said installation including a chamber and means for cutting same off from said path, said battery having a high-pressure accumulator at a high--pressure side thereof, a first valve connecting said high-pressure accumulator with said pressure line; a second valve connecting said high-pressure side of said path; a compressor connected between said line and said high-pressure accumulator; and a third valve between said compressor and said high-pressure accumulator.
Claim 13
Dependent Claim
28 words
The system defined in claim 10, further comprising gas-cooling means between said high-pressure side of said path and said battery for reducing the temperature of gases charged thereto.
Claim 14
Dependent Claim
51 words
The system defined in claim 10 wherein each of said accumulators is provided with pressurizing means, said pressurizing means including a conduit communicating with the respective accumulator at a low point thereof for supplying to said accumulator a fluid of a higher density than that of the gas traversing said Path.
Claim 15
Dependent Claim
14 words
The system defined in claim 10 wherein said accumulators are all of equal volume.
Claim 16
Dependent Claim
24 words
The system defined in claim 10 wherein each of said pressure-responsive valves includes a pressure sensor responsive to the pressure within the respective accumulator.
Claim 17
Dependent Claim
60 words
The system defined in claim 14 wherein said pressure-responsive valves are so constructed and arranged that said accumulators are charged with gas from said path in succession each at a pressure level only slightly below that at said high-pressure side of said path and discharge in succession each at a pressure only slightly above that prevalent at said low-pressure side.
Claim 18
Dependent Claim
51 words
The system defined in claim 10 wherein each of said accumulators is provided with a membrane dimensioned to hug the wall of the accumulator and sealingly subdividing same into a compartment communicating with said pressure line and a further compartment, and means for charging said other compartment with a pressurizing fluid.
Claim 19
Dependent Claim
30 words
The system defined in claim 16 wherein each of said accumulators is provided with a respective plate overlying the conduits and movable limitedly within said accumulators for supporting said membranes.
Claim 20
Dependent Claim
12 words
The system defined in claim 17 wherein said accumulators are generally spherical.
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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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |