Title:
【発明の名称】制御棒駆動機構の閉鎖装置
Document Type and Number:
Japanese Patent JPS6033633
Kind Code:
B2
Abstract:
A closing device (10) is operative to compress a closure assembly (82) and an O-ring (80) within a tubular housing (64) of a control rod drive mechanism for a nuclear reactor in order to seal the housing (64). The device (10) applies a predetermined compressive force to the closure assembly (82) and O-ring (80) and has incorporated therein an angularly movable sleeve (18) which engages a lock nut (98) and threadably advances the lock nut within the tubular housing (64) of the control rod drive mechanism so as to engage the closure assembly (82) and apply the predetermined compressive force to the closure assembly (82) and O-ring (80). After depressurization, the lock nut (98) retains the closure assembly (82) and O-ring (80) within the tubular housing (64) of the control rod drive mechanism by a predetermined residual compressive force.
Inventors:
MAATEI II ADOKOTSUKU
Application Number:
JP14638480A
Publication Date:
August 03, 1985
Filing Date:
October 21, 1980
Export Citation:
Assignee:
BABCOCK & WILCOX CO
International Classes:
F16B31/04; B25B27/28; B25B29/02; F16K1/34; G21C7/10; G21C7/12; G21C13/06; G21D1/02; (IPC1-7): B25B27/02; B25B27/28; G21C7/12
Attorney, Agent or Firm:
Motohiro Kurauchi
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