Fuel assembly and spacer for a nuclear reactor
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United States of America Patent
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-
Jan 19, 1999
Grant Date -
N/A
app pub date -
Jun 20, 1997
filing date -
Dec 21, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spacer including a plurality of cells to retain and mutually fix parallel, elongated elements, extending through the cells, in a bundle in a fuel assembly for a nuclear reactor where a coolant is adapted to flow from below and upwards. Between the cells, secondary channels are formed. At least one of the spacers includes at least two deflection members being substantially arranged so as to be surrounded by the cells. The deflection members are axially spaced-apart in the direction of flow of the coolant and relative to each other at a pitch angle for stepwise axial and radial deflection and guiding of at least part of the coolant flow towards fuel rods included in the bundle. The fuel rods are arranged close to the secondary channels.
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