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US 11,114,209 B2Granted
Nuclear reactor module with a cooling chamber for a drive motor of a control rod drive mechanism
AssigneeNuScale Power, LLC
InventorTamas Liszkai
Life of this patent
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Abstract
In some embodiments, a nuclear reactor vessel comprises a containment vessel for a reactor pressure vessel (RPV); a control rod drive mechanism (CRDM) located in the containment vessel, the CRDM including drive motors configured to move control rods into and out of a nuclear reactor core located in the RPV; and a partition extending across a portion of the containment vessel configured to retain the drive motors in a separate fluid-tight barrier region within the containment vessel. Other embodiments may be disclosed and/or claimed.
Claims11
An apparatus, comprising:
- a containment vessel having a first, fluid-containing region and a second, vacuum region, the second region housing a reactor pressure vessel of a nuclear reactor module, and the first region positioned above the second region;
- a control rod drive mechanism (CRDM) partially housed in the first region to control movement of control rods relative to the containment vessel;
- a fluid-tight barrier positioned around the CRDM, the fluid-tight barrier and the CRDM partitioning the first and second regions from each other wherein at least a portion of the CRDM is positioned in the second region and wherein one or more CRDM drive motors of the CRDM are thermally coupled with fluid in the first region;
- a fluid inlet positioned to direct the fluid into the first region, and
- a fluid outlet positioned to direct the fluid out of the first region.
2 more elements
Dependencies are inferred from the claim text.