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:
Jun. 27, 1989
Filed:
Sep. 08, 1987
Koichi Ohtomi, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
The recirculating flow rate of the primary coolant recirculated a nuclear reactor pressure vessel by an internal pump disposed therein is measured by a device which comprises a flow passage resisting device located in the recirculating flow passage of the primary coolant for creating between the upstream and downstream sides thereof a pressure difference in the primary coolant flow and detectors disposed at the upstream and downstream sides of the flow passage resisting device to detect the pressure difference therebetween. The thus detected pressure difference is converted into a corresponding electric signal by a transmitter which then transmits the signal to a device for computing the recirculating flow rate of the primary coolant in response to the signal. The device may further comprise an auxiliary measuring device for measuring a core flow rate of the primary coolant in a manner similar to that in the pumping flow rate measurement described above.