The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 01, 1987
Filed:
Aug. 01, 1985
Applicant:
Inventor:
Leonard S Jenkins, Plum Borough, PA (US);
Assignee:
Westinghouse Electric Corp, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D / ; G21C / ;
U.S. Cl.
CPC ...
415112 ; 415176 ; 376402 ; 376463 ;
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.