Primary coolant pump for nuclear reactors

Details Primary coolant pump for nuclear reactors Primary coolant pump for nuclear reactors

1974-08-28

1977-07-19

Croyle, Carlton R.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

Control of clutch or brake surface

176 38, 176 61, 415123, 417214, B27C 900, G21C 900

Patent

active

040365611

ABSTRACT:
The primary coolant pump of a nuclear reactor, which is usually driven electrically, can be accelerated in the event of a line break by the escaping coolant to such an extent that its mechanical strength is in jeopardy due to overspeed. According to the invention, a brake and/or shut-off means, which can be controlled by the pump pressure differential or the pump speed, are associated with the pump. The invention is of interest particularly for pressurized-water reactors.

REFERENCES:
patent: 2987296 (1961-06-01), Ferguson
patent: 3123282 (1964-03-01), Pothier et al.
patent: 3329399 (1967-07-01), Roper
patent: 3700552 (1972-10-01), Schluderberg

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