Channel follower leakage restrictor

Details Channel follower leakage restrictor Channel follower leakage restrictor

Filed on

1975-06-18

Date issued

1977-07-12

Examiner

Nelson, Peter A.

Other Related Categories

176 43, 176 76, G21C 330

Type

Patent

Status

active

Patent number

040352331

Description

ABSTRACT:
An improved means is provided to control coolant leakage between the flow channel and the lower tie plate of a nuclear fuel assembly. The means includes an opening in the lower tie plate and a movable element adjacent thereto. The coolant pressure within the tie plate biases the movable means toward the inner surface of the surrounding flow channel to compensate for any movement of the flow channel away from the lower tie plate to thereby control the leakage of coolant flow from the fuel assemblies to the spaces among the fuel assemblies of the core.

REFERENCES:
patent: 3172819 (1965-03-01), Picton
patent: 3338791 (1967-08-01), Lass et al.
patent: 3349004 (1967-10-01), Lass et al.
patent: 3689358 (1972-09-01), Smith et al.
patent: 3697376 (1972-10-01), Mefford et al.
patent: 3715274 (1973-02-01), Venier et al.

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