Magnetically coupled pump and nuclear reactor incorporating said

Details Magnetically coupled pump and nuclear reactor incorporating said Magnetically coupled pump and nuclear reactor incorporating said

1989-11-28

1991-05-21

Hunt, Brooks H.

Pumps

Motor driven

Electric or magnetic motor

376402, 376404, 376405, 41742314, F04B 1700

Patent

active

050171020

ABSTRACT:
A magnet pump has a magnet coupling for magnetically coupling an inner ring yoke and an outer ring yoke so as to magnetically transmit a torque from driving part to driven part of the pump to rotate the driven part. The magnet pump comprises magnetized magnet pieces bonded to the outer peripheral surface of the inner ring yoke and magnetized magnet pieces bonded to the inner peripheral surface of the outer ring yoke; non-magnetic cylindrical covers covering the surface of the inner ring yoke carrying the magnet pieces and the surface of the outer ring yoke carrying the magnet pieces, respectively; and mold resin parts filling the gap between the surface of the inner ring yoke and the associated non-magnetic cylindrical cover and the gap between the surface of the outer yoke ring and the associated non-magnetic cylindrical cover. Also disclosed are a method of producing the magnet pump in which the non-magnetic cylindrical covers are used as molds, and a nuclear reactor equipment in which the magnet pump is used as a coolant circulation pump.

REFERENCES:
patent: 4115040 (1978-09-01), Knorr
patent: 4120618 (1978-10-01), Klaus
patent: 4754181 (1988-06-01), Mizobuchi et al.
patent: 4812108 (1989-03-01), Kotera
patent: 4837472 (1989-06-01), Kotera
patent: 4850818 (1989-07-01), Kotera
"Piping Techbology", pp. 55-57, Jan. 5, 1987.
Denpa Shinbun, p. 24, Sep. 10, 1987.

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