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Snubber assembly for a control rod drive

Patent ·
OSTI ID:7064783

A snubber cartridge assembly is mounted to the nozzle of a control rod drive mechanism to insure that the snubber assembly will be located within the liquid filled section of a nuclear reactor vessel whenever the control rod drive is assembled thereto. The snubber assembly includes a piston mounted proximate to the control rod connecting end of the control rod drive leadscrew to allow the piston to travel within the liquid filled snubber cartridge and controllably exhaust liquid therefrom during a ''scram'' condition. The snubber cartridge provides three separate areas of increasing resistance to piston travel to insure a speedy but safe ''scram'' of the control rod into the reactor.

Assignee:
Diamond Power Specialty Corp.
Patent Number(s):
US 4082610
OSTI ID:
7064783
Country of Publication:
United States
Language:
English

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