Nuclear reactor upper core grid
阅读：744发布：2022-11-29
专利汇可以提供Nuclear reactor upper core grid专利检索，专利查询，专利分析的服务。并且A fuel assembly top guide for the fuel core of a nuclear reactor including screws having threads with an acute included angle between the thread pressure flank face and the screw axis for fastening the notched intersections of the beams forming the top guide.，下面是Nuclear reactor upper core grid专利的具体信息内容。
1. In a nuclear reactor, a fuel assembly upper core grid comprising: a plurality of relatively thin, notched beams arranged in a cross-laced interlocking array to form a plurality of fuel assembly passages, and a respective screw engaging said beams at each of the notched intersections of said beams, said screw being formed with sawtoothed threads having an acute angle between the crest portion of the thread pressure flank face and the screw axis and said beams being formed with matching female threads whereby upon tightening said screws against said beams the beams are urged toward said screws.
2. The top guide of claim 1 a respective screw engaging said beams at the top and at the bottom of each of said intersections.
3. The top guide of claim 1 wherein said acute angle is between 45.0* and 89.99* .
4. The top guide of claim 1 wherein said screws are greater in diameter than the thickness of said beams.
5. The top guide of claim 1 wherein said beams are supported by and secured to an annular support member engaging the ends of said beams.
6. The top guide of claim 5 wherein each end of each of said beams is fitted with an end bar of greater thickness than said beams for attachment to said support member.
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