Hydraulic drive for control rods

Details Hydraulic drive for control rods Hydraulic drive for control rods

1973-06-06

1976-11-02

Feinberg, Samuel

G21C 708

Patent

active

039895890

ABSTRACT:
A nuclear reactor is disclosed wherein hydraulic drive mechanisms for control rods are provided with a positive mechanical latching arrangement to maintain the control rods in a withdrawn position with respect to the core. With this arrangement, the coil of an associated electromagnet must be deliberately energized in order to insert the control rod into the core thus making accidental tripping highly unlikely. The drive mechanism is further provided with a hydraulic decelerating device which uses reactor coolant water to smoothly decelerate the control rod as it approaches the fully withdrawn position.

REFERENCES:
patent: 2855899 (1958-10-01), Beaty
patent: 3154472 (1964-10-01), Shannon
patent: 3607629 (1971-09-01), Frisch

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