Nuclear reactor coolant pump impeller/shaft assembly

Patent · Tue Sep 01 00:00:00 EDT 1987

OSTI ID:6101398

Jenkins, L S

A pump is described comprising: (a) a casing having an inlet and an outlet in fluid communication for circulating fluid coolant through the pump; (b) a shaft positioned in the casing; (c) an impeller nut connected to the shaft; (d) a lockbolt fixedly connecting the impeller nut relative to the shaft; (e) passageway means with first and second ends for directing fluid from the lockbolt to the shaft; (f) first conduit means formed in the impeller nut in fluid communication with the first end of the passageway means and the inlet of the casing; and (g) second conduit means formed in the impeller nut in fluid communication with the second end of the passageway means and the outlet of the casing. A portion of the fluid coolant circulating through the inlet of the casing is pumped through the first conduit means, through the passageway means, out the second conduit means and into the outlet of the casing.

• Assignee: Westinghouse Electric Corp., Pittsburgh, PA
• Patent Number(s): US 4690612
• Application Number: TRN: 87-036577
• OSTI ID: 6101398
• Resource Relation: Patent File Date: Filed date 1 Aug 1985
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
REACTOR COOLING SYSTEMS
PUMPS
CIRCULATING SYSTEMS
COOLANTS
COVERINGS
FASTENERS
FLUID FLOW
INTAKE STRUCTURES
PUMPING
SHAFTS
COOLING SYSTEMS
ENERGY SYSTEMS
MACHINE PARTS
MECHANICAL STRUCTURES
REACTOR COMPONENTS
220200* - Nuclear Reactor Technology- Components & Accessories