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Title: Control rod drive mechanism (CRDM) with remote disconnect mechanism

Abstract

The drive assembly includes annular drive magnets extending around a top end of a drive shaft and annular drive coils extending around the drive magnets, separated by a pressure boundary. A latch assembly is coupled to the drive magnets and engages with the drive shaft in response to actuation of the drive assembly. The drive coils also rotate the drive magnets and the engaged latch assembly to axially displace the drive shaft. Deactivating the drive coils disengages the latch assembly from the drive shaft, dropping a connected control rod assembly via gravity into a nuclear fuel assembly.

Inventors:
Issue Date:
Research Org.:
NuScale Power, LLC, Corvallis, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1771665
Patent Number(s):
10847272
Application Number:
15/858,727
Assignee:
NuScale Power, LLC (Corvallis, OR)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
NE0000633
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/29/2017
Country of Publication:
United States
Language:
English

Citation Formats

Lobscheid, Christian. Control rod drive mechanism (CRDM) with remote disconnect mechanism. United States: N. p., 2020. Web.
Lobscheid, Christian. Control rod drive mechanism (CRDM) with remote disconnect mechanism. United States.
Lobscheid, Christian. Tue . "Control rod drive mechanism (CRDM) with remote disconnect mechanism". United States. https://www.osti.gov/servlets/purl/1771665.
@article{osti_1771665,
title = {Control rod drive mechanism (CRDM) with remote disconnect mechanism},
author = {Lobscheid, Christian},
abstractNote = {The drive assembly includes annular drive magnets extending around a top end of a drive shaft and annular drive coils extending around the drive magnets, separated by a pressure boundary. A latch assembly is coupled to the drive magnets and engages with the drive shaft in response to actuation of the drive assembly. The drive coils also rotate the drive magnets and the engaged latch assembly to axially displace the drive shaft. Deactivating the drive coils disengages the latch assembly from the drive shaft, dropping a connected control rod assembly via gravity into a nuclear fuel assembly.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {11}
}

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