Variable flow control for a nuclear reactor control rod

Details Variable flow control for a nuclear reactor control rod Variable flow control for a nuclear reactor control rod

1974-12-12

1978-10-03

Feinberg, Samuel

G21C 708

Patent

active

041182758

ABSTRACT:
A variable flow control for a control rod assembly of a nuclear reactor that depends on turbulent friction though an annulus. The annulus is formed by a piston attached to the control rod drive shaft and a housing or sleeve fitted to the enclosure housing the control rod. As the nuclear fuel is burned up and the need exists for increased reactivity, the control rods are withdrawn, which increases the length of the annulus and decreases the rate of coolant flow through the control rod assembly.

REFERENCES:
patent: 3486973 (1969-12-01), Georges et al.
patent: 3763886 (1973-10-01), Lambert

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