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Title: Pump tank divider plate for sump suction sodium pumps. [LMFBR]

Patent ·
OSTI ID:5311509

A circular plate extends across the diameter of a sump suction pump, with a close clearance between the edge of the plate and the wall of the pump tank. The plate is located above the pump impeller, inlet and outlet flow nozzles but below the sodium free surface and effectively divides the pump tank into two separate chambers. On change of pump speed, the close fitting flow restriction plate limits the rate of flow into or out of the upper chamber, thereby minimizing the rate of level change in the tank and permitting time for the pump cover gas pressure to be varied to maintain an essentially constant level. 4 claims, 3 figures.

Assignee:
Energy Research and Development Administration
Patent Number(s):
US 4029123
Application Number:
TRN: 78-001476
OSTI ID:
5311509
Resource Relation:
Patent File Date: Filed date 20 Aug 1975; Other Information: PAT-APPL-606,043
Country of Publication:
United States
Language:
English