Rotary device for nuclear power facility
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United States of America Patent
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Jun 30, 2020
Grant Date -
May 25, 2017
app pub date -
Nov 17, 2016
filing date -
May 21, 2014
priority date (Note) -
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Abstract
A rotary device for a nuclear power facility, the rotary device being placed in a circuit for coolant containing radioactive nuclides in the nuclear power facility. The rotary device includes: a casing; and a rotary mechanism provided with, in the casing, a rotor and a rotor shaft that come into contact with the coolant containing the radioactive nuclides passing through the casing. Regarding the casing and the rotary mechanism, at least the rotor and the rotor shaft of the rotary mechanism comprise a low-effective diffusion coefficient alloy having a lower effective diffusion coefficient than a polycrystalline alloy.
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