Nuclear reactor coolant pump impeller/shaft assembly

Details Nuclear reactor coolant pump impeller/shaft assembly Nuclear reactor coolant pump impeller/shaft assembly

1985-08-01

1987-09-01

Schmidt, Frederick R.

Rotary kinetic fluid motors or pumps

With lubricating, sealing, packing or bearing means having...

For shaft sealing, packing, lubricating or bearing means

415176, 376402, 376463, F01D 1100, G21C 1500

Patent

active

046906126

ABSTRACT:
A nuclear reactor coolant pump impeller/shaft assembly, including an impeller nut with a plurality of conduits formed therein in fluid communication with both ends of a passageway formed in the impeller nut in contact with a portion of the shaft, the fluid inlet and fluid outlet of the pump. Due to this conduit/passageway combination, coolant is effectively pumped into the passageway to heat the shaft to a temperature approximately equal to that of the impeller, thus creating thermal balance of the pump's component parts and providing improved pump efficiency.

REFERENCES:
patent: 2402841 (1946-06-01), Ray
patent: 2936715 (1960-05-01), Southam
patent: 3220349 (1964-09-01), White
patent: 3756742 (1973-09-01), Speck
patent: 3982850 (1976-09-01), Jenkinson

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