Rack and pinion mechanism for moving a unit absorbing neutrons i

Details Rack and pinion mechanism for moving a unit absorbing neutrons i Rack and pinion mechanism for moving a unit absorbing neutrons i

1980-07-07

1983-01-18

Cangialosi, Sal

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By movement of control element or by release of neutron...

G21C 1910

Patent

active

043691617

ABSTRACT:
A rack and pinion mechanism for vertical up-and-down movement of neutron-absorbing control elements to control the power and to shut down a nuclear reactor in case of emergency. The upper portions of the elements constitute the rack, engaging a rotatably driven pinion perpendicular thereto and having teeth on a lateral face engaging corresponding teeth of a clutch pinion. The rack and pinion remain on continuous enagement, while the clutch pinion selectively engages and disenages the pinion, the translatory axial movement of the clutch pinion being controlled by a vertically moving actuating member controllable from the upper part of the apparatus.

REFERENCES:
patent: 2682785 (1954-07-01), Cerutti et al.
patent: 2857324 (1958-10-01), Boisblanc et al.
patent: 3278385 (1966-10-01), Dufrane
patent: 3405032 (1968-10-01), Barrus et al.
patent: 3518162 (1970-06-01), Lichtenberger
patent: 3604746 (1968-11-01), Notari
patent: 3965757 (1976-06-01), Barrus

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