US4035231A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Emergency cooling device for a nuclear reactor
Assignee: Electricite de France SA
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Filing: 1975-03-06
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Granted: 1977-07-12
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Expires: 1995-03-06
Abstract
Abstract An emergency cooling device for a nuclear reactor in which the core is constituted by N independent modules and a heat-transporting fluid is circulated within each module M i under the action of a pump P i essentially comprises a manifold C and N pipes S i (i = 1, 2 . . . N), each pipe S i being connected between the manifold C and a pipe K i which provides a connection between the pump P i and the module M i .
Inventors
- 👤 Edmond Ventre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:56
CPC Classifications
G; G21; G21C; G21C15/00; G21C15/18; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
140 words
An emergency cooling device for a nuclear reactor in which the core is constituted by N independent modules, a heat-transporting fluid being circulated through each module M i under the action of an associated independent pump P i , wherein said device comprises a manifold C and N pipes S i (i=1, 2 . . . N), each of the pipes S i being directly connected between the manifold C and a pipe K i which directly connects the pump P i to the module M i wherein the axis of the orifice of each of the pipes S i which open into the pipes K i is substantially parallel to the direction of flow of the fluid within the pipe K i under the influence of the pump P i and directed towards the downstream end of said flow.
Claim 2
Dependent Claim
140 words
An emergency cooling device for a nuclear reactor in which the core is constituted by N independent modules, a heat-transporting fluid being circulated through each module M i under the action of an associated independent pump P i , wherein said device comprises a manifold C and N pipes S i (i=1, 2 . . . N), each of the pipes S i being directly connected between the manifold C and a pipe K i which directly connects the pump P i to the module M i wherein the axis of the orifice of each of the pipes S i which open into the pipes K i is substantially parallel to the direction of flow of the fluid within the pipe K i under the influence of the pump P i and directed towards the downstream end of said flow.
Claim 3
Dependent Claim
45 words
A device according to claim 1, wherein the cross-sectional area of the pipes S i is within the range of 1/100 and 1/10 of the cross-sectional area of the main pipes K i which connect the pumps P i to the modules M i .
Claim 4
Dependent Claim
61 words
The application of the device according to claim 1, wherein the reactor core comprises N modules cooled by liquid sodium pumped during normal operation by pumps P i towards the modules M i and in the event of stoppage of a pump P i from the manifold C towards the module M i by means of the pipe S i .
References Cited (Backward Citations)
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GB1286629A
Cited
US3601986A
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US3847733A
Cited
US3839150A
Cited
UST921015I4
Cited
US3888731A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-07-11 | 1981-01-10 | 1981-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-07-11 | 1985-01-10 | 1985-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-07-11 | 1989-01-10 | 1989-07-12 | $7700.00 | Window Closed / Lapsed |